Prompt:
Complete this bash code:

# This overwrites any existing configuration in /etc/yum.repos.d/kubernetes.repo
cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes

Response:
baseurl=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/repodata/repomd.xml.key
EOF

Context: Install and Set Up kubectl on Linux | Install kubectl using yum:


Prompt:
Explain this bash code:

# This overwrites any existing configuration in /etc/yum.repos.d/kubernetes.repo
cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/repodata/repomd.xml.key
EOF

Response: This bash code Install and Set Up kubectl on Linux | Install kubectl using yum:


Prompt:
Complete this bash code:

# This overwrites any existing configuration in /etc/zypp/repos.d/kubernetes.repo
cat <<EOF | sudo tee /etc/zypp/repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes

Response:
baseurl=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/repodata/repomd.xml.key
EOF

Context: Install and Set Up kubectl on Linux | Update zypper and confirm the new repo addition:


Prompt:
Explain this bash code:

# This overwrites any existing configuration in /etc/zypp/repos.d/kubernetes.repo
cat <<EOF | sudo tee /etc/zypp/repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/repodata/repomd.xml.key
EOF

Response: This bash code Install and Set Up kubectl on Linux | Update zypper and confirm the new repo addition:


Prompt:
Complete this go code:

New repository or package signing key received:

Repository:       Kubernetes
Key Fingerprint:  1111 2222 3333 4444 5555 6666 7777 8888 9999 AAAA
Key Name:         isv:kubernetes OBS Project <isv:kubernetes@build.opensuse.org>
Key Algorithm:    RSA 2048
Key Created:      Thu 25 Aug 2022 01:21:11 PM -03
Key Expires:      Sat 02 Nov 2024 01:21:11 PM -03 (expires in 85 days)
Rpm Name:         gpg-pubkey-9a296436-6307a177

Response:
Note: Signing data enables the recipient to verify that no modifications occurred after the data
were signed. Accepting data with no, wrong or unknown signature can lead to a corrupted system
and in extreme cases even to a system compromise.

Note: A GPG pubkey is clearly identified by its fingerprint. Do not rely on the key's name. If
you are not sure whether the presented key is authentic, ask the repository provider or check
their web site. Many providers maintain a web page showing the fingerprints of the GPG keys they
are using.

Do you want to reject the key, trust temporarily, or trust always? [r/t/a/?] (r): a

Context: Install and Set Up kubectl on Linux | Install kubectl using zypper:


Prompt:
Explain this go code:

New repository or package signing key received:

Repository:       Kubernetes
Key Fingerprint:  1111 2222 3333 4444 5555 6666 7777 8888 9999 AAAA
Key Name:         isv:kubernetes OBS Project <isv:kubernetes@build.opensuse.org>
Key Algorithm:    RSA 2048
Key Created:      Thu 25 Aug 2022 01:21:11 PM -03
Key Expires:      Sat 02 Nov 2024 01:21:11 PM -03 (expires in 85 days)
Rpm Name:         gpg-pubkey-9a296436-6307a177

Note: Signing data enables the recipient to verify that no modifications occurred after the data
were signed. Accepting data with no, wrong or unknown signature can lead to a corrupted system
and in extreme cases even to a system compromise.

Note: A GPG pubkey is clearly identified by its fingerprint. Do not rely on the key's name. If
you are not sure whether the presented key is authentic, ask the repository provider or check
their web site. Many providers maintain a web page showing the fingerprints of the GPG keys they
are using.

Do you want to reject the key, trust temporarily, or trust always? [r/t/a/?] (r): a

Response: This go code Install and Set Up kubectl on Linux | Install kubectl using zypper:


Prompt:
Explain this shell code:

snap install kubectl --classic
kubectl version --client

Response: This shell code Install and Set Up kubectl on Linux | If you are on Linux and using Homebrew package manager, kubectl is available for installation.brew install kubectl kubectl version --client

Context: Install and Set Up kubectl on Linux | If you are on Linux and using Homebrew package manager, kubectl is available for installation.brew install kubectl kubectl version --client


Prompt:
Explain this text code:

The connection to the server <server-name:port> was refused - did you specify the right host or port?

Response: This text code Install and Set Up kubectl on Linux | For example, if you are intending to run a Kubernetes cluster on your laptop (locally), you will need a tool like Minikube to be installed first and then re-run the commands stated above.

Context: Install and Set Up kubectl on Linux | For example, if you are intending to run a Kubernetes cluster on your laptop (locally), you will need a tool like Minikube to be installed first and then re-run the commands stated above.


Prompt:
Explain this bash code:

echo 'source <(kubectl completion bash)' >>~/.bashrc

Response: This bash code Install and Set Up kubectl on Linux | kubectl completion bash | sudo tee /etc/bash_completion.d/kubectl > /dev/null sudo chmod a+r /etc/bash_completion.d/kubectl

Context: Install and Set Up kubectl on Linux | kubectl completion bash | sudo tee /etc/bash_completion.d/kubectl > /dev/null sudo chmod a+r /etc/bash_completion.d/kubectl


Prompt:
Explain this bash code:

kubectl completion bash | sudo tee /etc/bash_completion.d/kubectl > /dev/null
sudo chmod a+r /etc/bash_completion.d/kubectl

Response: This bash code Install and Set Up kubectl on Linux | If you have an alias for kubectl, you can extend shell completion to work with that alias:

Context: Install and Set Up kubectl on Linux | If you have an alias for kubectl, you can extend shell completion to work with that alias:


Prompt:
Explain this bash code:

echo 'alias k=kubectl' >>~/.bashrc
echo 'complete -o default -F __start_kubectl k' >>~/.bashrc

Response: This bash code Install and Set Up kubectl on Linux | Both approaches are equivalent. After reloading your shell, kubectl autocompletion should be working. To enable bash autocompletion in current session of shell, source the ~/.bashrc file:

Context: Install and Set Up kubectl on Linux | Both approaches are equivalent. After reloading your shell, kubectl autocompletion should be working. To enable bash autocompletion in current session of shell, source the ~/.bashrc file:


Prompt:
Explain this bash code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl-convert"

Response: This bash code Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert"

Context: Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert"


Prompt:
Explain this bash code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert"

Response: This bash code Install and Set Up kubectl on Linux | Validate the binary (optional)

Context: Install and Set Up kubectl on Linux | Validate the binary (optional)


Prompt:
Explain this bash code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl-convert.sha256"

Response: This bash code Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert.sha256"

Context: Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert.sha256"


Prompt:
Explain this bash code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert.sha256"

Response: This bash code Install and Set Up kubectl on Linux | Validate the kubectl-convert binary against the checksum file:

Context: Install and Set Up kubectl on Linux | Validate the kubectl-convert binary against the checksum file:


Prompt:
Explain this bash code:

echo "$(cat kubectl-convert.sha256) kubectl-convert" | sha256sum --check

Response: This bash code Install and Set Up kubectl on Linux | If valid, the output is:

Context: Install and Set Up kubectl on Linux | If valid, the output is:


Prompt:
Explain this console code:

kubectl-convert: FAILED
sha256sum: WARNING: 1 computed checksum did NOT match

Response: This console code Install and Set Up kubectl on Linux | Install kubectl-convert

Context: Install and Set Up kubectl on Linux | Install kubectl-convert


Prompt:
Explain this bash code:

sudo install -o root -g root -m 0755 kubectl-convert /usr/local/bin/kubectl-convert

Response: This bash code Install and Set Up kubectl on Linux | Verify plugin is successfully installed

Context: Install and Set Up kubectl on Linux | Verify plugin is successfully installed


Prompt:
Explain this text code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"

Response: This text code Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl"

Context: Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl"


Prompt:
Explain this text code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl"

Response: This text code Install and Set Up kubectl on Linux | To download a specific version, replace the $(curl -L -s https://dl.k8s.io/release/stable.txt) portion of the command with the specific version.

Context: Install and Set Up kubectl on Linux | To download a specific version, replace the $(curl -L -s https://dl.k8s.io/release/stable.txt) portion of the command with the specific version.


Prompt:
Explain this text code:

curl -LO https://dl.k8s.io/release/v1.34.0/bin/linux/amd64/kubectl

Response: This text code Install and Set Up kubectl on Linux | And for Linux ARM64, type:

Context: Install and Set Up kubectl on Linux | And for Linux ARM64, type:


Prompt:
Explain this text code:

curl -LO https://dl.k8s.io/release/v1.34.0/bin/linux/arm64/kubectl

Response: This text code Install and Set Up kubectl on Linux | Validate the binary (optional)


Prompt:
Explain this text code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl.sha256"

Response: This text code Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl.sha256"

Context: Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl.sha256"


Prompt:
Explain this text code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl.sha256"

Response: This text code Install and Set Up kubectl on Linux | Validate the kubectl binary against the checksum file:

Context: Install and Set Up kubectl on Linux | Validate the kubectl binary against the checksum file:


Prompt:
Explain this text code:

echo "$(cat kubectl.sha256)  kubectl" | sha256sum --check

Response: This text code Install and Set Up kubectl on Linux | If valid, the output is:


Prompt:
Explain this bash code:

kubectl: FAILED
sha256sum: WARNING: 1 computed checksum did NOT match

Response: This bash code Install and Set Up kubectl on Linux | Install kubectl

Context: Install and Set Up kubectl on Linux | Install kubectl


Prompt:
Explain this text code:

sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl

Response: This text code Install and Set Up kubectl on Linux | If you do not have root access on the target system, you can still install kubectl to the ~/.local/bin directory:

Context: Install and Set Up kubectl on Linux | If you do not have root access on the target system, you can still install kubectl to the ~/.local/bin directory:


Prompt:
Complete this text code:

chmod +x kubectl
mkdir -p ~/.local/bin

Response:
mv ./kubectl ~/.local/bin/kubectl
# and then append (or prepend) ~/.local/bin to $PATH

Context: Install and Set Up kubectl on Linux | Test to ensure the version you installed is up-to-date:


Prompt:
Explain this text code:

chmod +x kubectl
mkdir -p ~/.local/bin
mv ./kubectl ~/.local/bin/kubectl
# and then append (or prepend) ~/.local/bin to $PATH

Response: This text code Install and Set Up kubectl on Linux | Test to ensure the version you installed is up-to-date:


Prompt:
Explain this text code:

sudo apt-get update
# apt-transport-https may be a dummy package; if so, you can skip that package
sudo apt-get install -y apt-transport-https ca-certificates curl gnupg

Response: This text code Install and Set Up kubectl on Linux | Download the public signing key for the Kubernetes package repositories. The same signing key is used for all repositories so you can disregard the version in the URL:

Context: Install and Set Up kubectl on Linux | Download the public signing key for the Kubernetes package repositories. The same signing key is used for all repositories so you can disregard the version in the URL:


Prompt:
Complete this text code:

# If the folder `/etc/apt/keyrings` does not exist, it should be created before the curl command, read the note below.
# sudo mkdir -p -m 755 /etc/apt/keyrings

Response:
curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.34/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
sudo chmod 644 /etc/apt/keyrings/kubernetes-apt-keyring.gpg # allow unprivileged APT programs to read this keyring

Context: Install and Set Up kubectl on Linux | Add the appropriate Kubernetes apt repository. If you want to use Kubernetes version different than v1.34, replace v1.34 with the desired minor version in the command below:


Prompt:
Explain this text code:

# If the folder `/etc/apt/keyrings` does not exist, it should be created before the curl command, read the note below.
# sudo mkdir -p -m 755 /etc/apt/keyrings
curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.34/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
sudo chmod 644 /etc/apt/keyrings/kubernetes-apt-keyring.gpg # allow unprivileged APT programs to read this keyring

Response: This text code Install and Set Up kubectl on Linux | Add the appropriate Kubernetes apt repository. If you want to use Kubernetes version different than v1.34, replace v1.34 with the desired minor version in the command below:


Prompt:
Explain this text code:

# This overwrites any existing configuration in /etc/apt/sources.list.d/kubernetes.list
echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.34/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo chmod 644 /etc/apt/sources.list.d/kubernetes.list   # helps tools such as command-not-found to work correctly

Response: This text code Install and Set Up kubectl on Linux | Update apt package index, then install kubectl:

Context: Install and Set Up kubectl on Linux | Update apt package index, then install kubectl:


Prompt:
Explain this text code:

sudo apt-get update
sudo apt-get install -y kubectl

Response: This text code Install and Set Up kubectl on Linux | Add the Kubernetes yum repository. If you want to use Kubernetes version different than v1.34, replace v1.34 with the desired minor version in the command below.# This overwrites any existing configur

Context: Install and Set Up kubectl on Linux | Add the Kubernetes yum repository. If you want to use Kubernetes version different than v1.34, replace v1.34 with the desired minor version in the command below.# This overwrites any existing configur


Prompt:
Complete this text code:

# This overwrites any existing configuration in /etc/yum.repos.d/kubernetes.repo
cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes

Response:
baseurl=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/repodata/repomd.xml.key
EOF

Context: Install and Set Up kubectl on Linux | Install kubectl using yum:


Prompt:
Explain this text code:

# This overwrites any existing configuration in /etc/yum.repos.d/kubernetes.repo
cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/repodata/repomd.xml.key
EOF

Response: This text code Install and Set Up kubectl on Linux | Install kubectl using yum:


Prompt:
Complete this text code:

# This overwrites any existing configuration in /etc/zypp/repos.d/kubernetes.repo
cat <<EOF | sudo tee /etc/zypp/repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes

Response:
baseurl=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/repodata/repomd.xml.key
EOF

Context: Install and Set Up kubectl on Linux | Update zypper and confirm the new repo addition:


Prompt:
Explain this text code:

# This overwrites any existing configuration in /etc/zypp/repos.d/kubernetes.repo
cat <<EOF | sudo tee /etc/zypp/repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/
enabled=1
gpgcheck=1
gpgkey=https://pkgs.k8s.io/core:/stable:/v1.34/rpm/repodata/repomd.xml.key
EOF

Response: This text code Install and Set Up kubectl on Linux | Update zypper and confirm the new repo addition:


Prompt:
Explain this text code:

snap install kubectl --classic
kubectl version --client

Response: This text code Install and Set Up kubectl on Linux | If you are on Linux and using Homebrew package manager, kubectl is available for installation.brew install kubectl kubectl version --client

Context: Install and Set Up kubectl on Linux | If you are on Linux and using Homebrew package manager, kubectl is available for installation.brew install kubectl kubectl version --client


Prompt:
Explain this text code:

echo 'source <(kubectl completion bash)' >>~/.bashrc

Response: This text code Install and Set Up kubectl on Linux | kubectl completion bash | sudo tee /etc/bash_completion.d/kubectl > /dev/null sudo chmod a+r /etc/bash_completion.d/kubectl

Context: Install and Set Up kubectl on Linux | kubectl completion bash | sudo tee /etc/bash_completion.d/kubectl > /dev/null sudo chmod a+r /etc/bash_completion.d/kubectl


Prompt:
Explain this bash code:

kubectl completion bash | sudo tee /etc/bash_completion.d/kubectl > /dev/null
sudo chmod a+r /etc/bash_completion.d/kubectl

Response: This bash code Install and Set Up kubectl on Linux | If you have an alias for kubectl, you can extend shell completion to work with that alias:

Context: Install and Set Up kubectl on Linux | If you have an alias for kubectl, you can extend shell completion to work with that alias:


Prompt:
Explain this text code:

echo 'alias k=kubectl' >>~/.bashrc
echo 'complete -o default -F __start_kubectl k' >>~/.bashrc

Response: This text code Install and Set Up kubectl on Linux | Both approaches are equivalent. After reloading your shell, kubectl autocompletion should be working. To enable bash autocompletion in current session of shell, source the ~/.bashrc file:

Context: Install and Set Up kubectl on Linux | Both approaches are equivalent. After reloading your shell, kubectl autocompletion should be working. To enable bash autocompletion in current session of shell, source the ~/.bashrc file:


Prompt:
Explain this text code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl-convert"

Response: This text code Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert"

Context: Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert"


Prompt:
Explain this text code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert"

Response: This text code Install and Set Up kubectl on Linux | Validate the binary (optional)

Context: Install and Set Up kubectl on Linux | Validate the binary (optional)


Prompt:
Explain this text code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl-convert.sha256"

Response: This text code Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert.sha256"

Context: Install and Set Up kubectl on Linux | curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert.sha256"


Prompt:
Explain this text code:

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/arm64/kubectl-convert.sha256"

Response: This text code Install and Set Up kubectl on Linux | Validate the kubectl-convert binary against the checksum file:

Context: Install and Set Up kubectl on Linux | Validate the kubectl-convert binary against the checksum file:


Prompt:
Explain this text code:

echo "$(cat kubectl-convert.sha256) kubectl-convert" | sha256sum --check

Response: This text code Install and Set Up kubectl on Linux | If valid, the output is:

Context: Install and Set Up kubectl on Linux | If valid, the output is:


Prompt:
Explain this bash code:

kubectl-convert: FAILED
sha256sum: WARNING: 1 computed checksum did NOT match

Response: This bash code Install and Set Up kubectl on Linux | Install kubectl-convert

Context: Install and Set Up kubectl on Linux | Install kubectl-convert


Prompt:
Explain this text code:

sudo install -o root -g root -m 0755 kubectl-convert /usr/local/bin/kubectl-convert

Response: This text code Install and Set Up kubectl on Linux | Verify plugin is successfully installed

Context: Install and Set Up kubectl on Linux | Verify plugin is successfully installed


Prompt:
Complete this yaml code:

apiVersion: v1
kind: LimitRange
metadata:
  name: mem-min-max-demo-lr
spec:

Response:
  limits:
  - max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Create the LimitRange:


Prompt:
Explain this yaml code:

apiVersion: v1
kind: LimitRange
metadata:
  name: mem-min-max-demo-lr
spec:
  limits:
  - max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the LimitRange:


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints.yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the LimitRange:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the LimitRange:


Prompt:
Explain this bash code:

kubectl get limitrange mem-min-max-demo-lr --namespace=constraints-mem-example --output=yaml

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows the minimum and maximum memory constraints as expected. But notice that even though you didn't specify default values in the configuration file for the LimitRange, they were created a

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows the minimum and maximum memory constraints as expected. But notice that even though you didn't specify default values in the configuration file for the LimitRange, they were created a


Prompt:
Complete this text code:

limits:
  - default:
      memory: 1Gi
    defaultRequest:
      memory: 1Gi

Response:
    max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Now whenever you define a Pod within the constraints-mem-example namespace, Kubernetes performs these steps:


Prompt:
Explain this text code:

limits:
  - default:
      memory: 1Gi
    defaultRequest:
      memory: 1Gi
    max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | Now whenever you define a Pod within the constraints-mem-example namespace, Kubernetes performs these steps:


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo
spec:
  containers:

Response:
  - name: constraints-mem-demo-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "600Mi"

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Create the Pod:


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo
spec:
  containers:
  - name: constraints-mem-demo-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "600Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the Pod:


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod.yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | Verify that the Pod is running and that its container is healthy:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Verify that the Pod is running and that its container is healthy:


Prompt:
Explain this bash code:

kubectl get pod constraints-mem-demo --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the Pod:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the Pod:


Prompt:
Explain this bash code:

kubectl get pod constraints-mem-demo --output=yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the container within that Pod has a memory request of 600 MiB and a memory limit of 800 MiB. These satisfy the constraints imposed by the LimitRange for this namespace:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the container within that Pod has a memory request of 600 MiB and a memory limit of 800 MiB. These satisfy the constraints imposed by the LimitRange for this namespace:


Prompt:
Complete this text code:

resources:
  limits:

Response:
     memory: 800Mi
  requests:
    memory: 600Mi

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Delete your Pod:


Prompt:
Explain this text code:

resources:
  limits:
     memory: 800Mi
  requests:
    memory: 600Mi

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | Delete your Pod:


Prompt:
Explain this bash code:

kubectl delete pod constraints-mem-demo --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. The container specifies a memory request of 800 MiB and a memory limit of 1.5 GiB.

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. The container specifies a memory request of 800 MiB and a memory limit of 1.5 GiB.


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-2
spec:
  containers:

Response:
  - name: constraints-mem-demo-2-ctr
    image: nginx
    resources:
      limits:
        memory: "1.5Gi"
      requests:
        memory: "800Mi"

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Attempt to create the Pod:


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-2
spec:
  containers:
  - name: constraints-mem-demo-2-ctr
    image: nginx
    resources:
      limits:
        memory: "1.5Gi"
      requests:
        memory: "800Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Attempt to create the Pod:


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod-2.yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests more memory than is allowed:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests more memory than is allowed:


Prompt:
Explain this text code:

Error from server (Forbidden): error when creating "examples/admin/resource/memory-constraints-pod-2.yaml":
pods "constraints-mem-demo-2" is forbidden: maximum memory usage per Container is 1Gi, but limit is 1536Mi.

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. That container specifies a memory request of 100 MiB and a memory limit of 800 MiB.

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. That container specifies a memory request of 100 MiB and a memory limit of 800 MiB.


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-3
spec:
  containers:

Response:
  - name: constraints-mem-demo-3-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "100Mi"


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-3
spec:
  containers:
  - name: constraints-mem-demo-3-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "100Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Attempt to create the Pod:


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod-3.yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests less memory than the enforced minimum:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests less memory than the enforced minimum:


Prompt:
Explain this text code:

Error from server (Forbidden): error when creating "examples/admin/resource/memory-constraints-pod-3.yaml":
pods "constraints-mem-demo-3" is forbidden: minimum memory usage per Container is 500Mi, but request is 100Mi.

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. The container does not specify a memory request, and it does not specify a memory limit.

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. The container does not specify a memory request, and it does not specify a memory limit.


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-4

Response:
spec:
  containers:
  - name: constraints-mem-demo-4-ctr
    image: nginx


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-4
spec:
  containers:
  - name: constraints-mem-demo-4-ctr
    image: nginx

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the Pod:


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod-4.yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the Pod:


Prompt:
Explain this bash code:

kubectl get pod constraints-mem-demo-4 --namespace=constraints-mem-example --output=yaml

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod's only container has a memory request of 1 GiB and a memory limit of 1 GiB. How did that container get those values?

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod's only container has a memory request of 1 GiB and a memory limit of 1 GiB. How did that container get those values?


Prompt:
Complete this text code:

resources:
  limits:

Response:
    memory: 1Gi
  requests:
    memory: 1Gi

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Because your Pod did not define any memory request and limit for that container, the cluster applied a default memory request and limit from the LimitRange.


Prompt:
Explain this text code:

resources:
  limits:
    memory: 1Gi
  requests:
    memory: 1Gi

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | Because your Pod did not define any memory request and limit for that container, the cluster applied a default memory request and limit from the LimitRange.


Prompt:
Explain this text code:

# Look for the "Requests:" section of the output
kubectl describe pod constraints-mem-demo-4 --namespace=constraints-mem-example

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | At this point, your Pod might be running or it might not be running. Recall that a prerequisite for this task is that your Nodes have at least 1 GiB of memory. If each of your Nodes has only 1 GiB of

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | At this point, your Pod might be running or it might not be running. Recall that a prerequisite for this task is that your Nodes have at least 1 GiB of memory. If each of your Nodes has only 1 GiB of


Prompt:
Explain this bash code:

kubectl delete pod constraints-mem-demo-4 --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The maximum and minimum memory constraints imposed on a namespace by a LimitRange are enforced only when a Pod is created or updated. If you change the LimitRange, it does not affect Pods that were cr

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The maximum and minimum memory constraints imposed on a namespace by a LimitRange are enforced only when a Pod is created or updated. If you change the LimitRange, it does not affect Pods that were cr


Prompt:
Complete this yaml code:

apiVersion: v1
kind: LimitRange
metadata:
  name: mem-min-max-demo-lr
spec:

Response:
  limits:
  - max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Create the LimitRange:


Prompt:
Explain this yaml code:

apiVersion: v1
kind: LimitRange
metadata:
  name: mem-min-max-demo-lr
spec:
  limits:
  - max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the LimitRange:


Prompt:
Explain this shell code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints.yaml --namespace=constraints-mem-example

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the LimitRange:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the LimitRange:


Prompt:
Explain this shell code:

kubectl get limitrange mem-min-max-demo-lr --namespace=constraints-mem-example --output=yaml

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows the minimum and maximum memory constraints as expected. But notice that even though you didn't specify default values in the configuration file for the LimitRange, they were created a

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows the minimum and maximum memory constraints as expected. But notice that even though you didn't specify default values in the configuration file for the LimitRange, they were created a


Prompt:
Complete this text code:

limits:
  - default:
      memory: 1Gi
    defaultRequest:
      memory: 1Gi

Response:
    max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Now whenever you define a Pod within the constraints-mem-example namespace, Kubernetes performs these steps:


Prompt:
Explain this text code:

limits:
  - default:
      memory: 1Gi
    defaultRequest:
      memory: 1Gi
    max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | Now whenever you define a Pod within the constraints-mem-example namespace, Kubernetes performs these steps:


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo
spec:
  containers:

Response:
  - name: constraints-mem-demo-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "600Mi"

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Create the Pod:


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo
spec:
  containers:
  - name: constraints-mem-demo-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "600Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the Pod:


Prompt:
Explain this shell code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod.yaml --namespace=constraints-mem-example

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | Verify that the Pod is running and that its container is healthy:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Verify that the Pod is running and that its container is healthy:


Prompt:
Explain this shell code:

kubectl get pod constraints-mem-demo --namespace=constraints-mem-example

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the Pod:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the Pod:


Prompt:
Explain this shell code:

kubectl get pod constraints-mem-demo --output=yaml --namespace=constraints-mem-example

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the container within that Pod has a memory request of 600 MiB and a memory limit of 800 MiB. These satisfy the constraints imposed by the LimitRange for this namespace:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the container within that Pod has a memory request of 600 MiB and a memory limit of 800 MiB. These satisfy the constraints imposed by the LimitRange for this namespace:


Prompt:
Complete this yaml code:

resources:
  limits:

Response:
     memory: 800Mi
  requests:
    memory: 600Mi

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Delete your Pod:


Prompt:
Explain this yaml code:

resources:
  limits:
     memory: 800Mi
  requests:
    memory: 600Mi

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Delete your Pod:


Prompt:
Explain this shell code:

kubectl delete pod constraints-mem-demo --namespace=constraints-mem-example

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. The container specifies a memory request of 800 MiB and a memory limit of 1.5 GiB.

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. The container specifies a memory request of 800 MiB and a memory limit of 1.5 GiB.


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-2
spec:
  containers:

Response:
  - name: constraints-mem-demo-2-ctr
    image: nginx
    resources:
      limits:
        memory: "1.5Gi"
      requests:
        memory: "800Mi"

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Attempt to create the Pod:


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-2
spec:
  containers:
  - name: constraints-mem-demo-2-ctr
    image: nginx
    resources:
      limits:
        memory: "1.5Gi"
      requests:
        memory: "800Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Attempt to create the Pod:


Prompt:
Explain this shell code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod-2.yaml --namespace=constraints-mem-example

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests more memory than is allowed:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests more memory than is allowed:


Prompt:
Explain this text code:

Error from server (Forbidden): error when creating "examples/admin/resource/memory-constraints-pod-2.yaml":
pods "constraints-mem-demo-2" is forbidden: maximum memory usage per Container is 1Gi, but limit is 1536Mi.

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. That container specifies a memory request of 100 MiB and a memory limit of 800 MiB.

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. That container specifies a memory request of 100 MiB and a memory limit of 800 MiB.


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-3
spec:
  containers:

Response:
  - name: constraints-mem-demo-3-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "100Mi"


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-3
spec:
  containers:
  - name: constraints-mem-demo-3-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "100Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Attempt to create the Pod:


Prompt:
Explain this shell code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod-3.yaml --namespace=constraints-mem-example

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests less memory than the enforced minimum:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests less memory than the enforced minimum:


Prompt:
Explain this text code:

Error from server (Forbidden): error when creating "examples/admin/resource/memory-constraints-pod-3.yaml":
pods "constraints-mem-demo-3" is forbidden: minimum memory usage per Container is 500Mi, but request is 100Mi.

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. The container does not specify a memory request, and it does not specify a memory limit.

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. The container does not specify a memory request, and it does not specify a memory limit.


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-4

Response:
spec:
  containers:
  - name: constraints-mem-demo-4-ctr
    image: nginx


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-4
spec:
  containers:
  - name: constraints-mem-demo-4-ctr
    image: nginx

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the Pod:


Prompt:
Explain this shell code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod-4.yaml --namespace=constraints-mem-example

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the Pod:


Prompt:
Explain this shell code:

kubectl get pod constraints-mem-demo-4 --namespace=constraints-mem-example --output=yaml

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod's only container has a memory request of 1 GiB and a memory limit of 1 GiB. How did that container get those values?

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod's only container has a memory request of 1 GiB and a memory limit of 1 GiB. How did that container get those values?


Prompt:
Complete this text code:

resources:
  limits:

Response:
    memory: 1Gi
  requests:
    memory: 1Gi

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Because your Pod did not define any memory request and limit for that container, the cluster applied a default memory request and limit from the LimitRange.


Prompt:
Explain this text code:

resources:
  limits:
    memory: 1Gi
  requests:
    memory: 1Gi

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | Because your Pod did not define any memory request and limit for that container, the cluster applied a default memory request and limit from the LimitRange.


Prompt:
Explain this shell code:

# Look for the "Requests:" section of the output
kubectl describe pod constraints-mem-demo-4 --namespace=constraints-mem-example

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | At this point, your Pod might be running or it might not be running. Recall that a prerequisite for this task is that your Nodes have at least 1 GiB of memory. If each of your Nodes has only 1 GiB of

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | At this point, your Pod might be running or it might not be running. Recall that a prerequisite for this task is that your Nodes have at least 1 GiB of memory. If each of your Nodes has only 1 GiB of


Prompt:
Explain this shell code:

kubectl delete pod constraints-mem-demo-4 --namespace=constraints-mem-example

Response: This shell code Configure Minimum and Maximum Memory Constraints for a Namespace | The maximum and minimum memory constraints imposed on a namespace by a LimitRange are enforced only when a Pod is created or updated. If you change the LimitRange, it does not affect Pods that were cr

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The maximum and minimum memory constraints imposed on a namespace by a LimitRange are enforced only when a Pod is created or updated. If you change the LimitRange, it does not affect Pods that were cr


Prompt:
Complete this yaml code:

admin/resource/memory-constraints.yaml
apiVersion: v1
kind: LimitRange
metadata:
  name: mem-min-max-demo-lr
spec:

Response:
  limits:
  - max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Create the LimitRange:


Prompt:
Explain this yaml code:

admin/resource/memory-constraints.yaml
apiVersion: v1
kind: LimitRange
metadata:
  name: mem-min-max-demo-lr
spec:
  limits:
  - max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the LimitRange:


Prompt:
Complete this yaml code:

apiVersion: v1
kind: LimitRange
metadata:
  name: mem-min-max-demo-lr
spec:

Response:
  limits:
  - max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container


Prompt:
Explain this yaml code:

apiVersion: v1
kind: LimitRange
metadata:
  name: mem-min-max-demo-lr
spec:
  limits:
  - max:
      memory: 1Gi
    min:
      memory: 500Mi
    type: Container

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the LimitRange:


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints.yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the LimitRange:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the LimitRange:


Prompt:
Explain this bash code:

kubectl get limitrange mem-min-max-demo-lr --namespace=constraints-mem-example --output=yaml

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows the minimum and maximum memory constraints as expected. But notice that even though you didn't specify default values in the configuration file for the LimitRange, they were created a

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows the minimum and maximum memory constraints as expected. But notice that even though you didn't specify default values in the configuration file for the LimitRange, they were created a


Prompt:
Complete this yaml code:

admin/resource/memory-constraints-pod.yaml
apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo
spec:
  containers:

Response:
  - name: constraints-mem-demo-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "600Mi"

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Create the Pod:


Prompt:
Explain this yaml code:

admin/resource/memory-constraints-pod.yaml
apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo
spec:
  containers:
  - name: constraints-mem-demo-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "600Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the Pod:


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo
spec:
  containers:

Response:
  - name: constraints-mem-demo-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "600Mi"


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo
spec:
  containers:
  - name: constraints-mem-demo-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "600Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the Pod:


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod.yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | Verify that the Pod is running and that its container is healthy:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Verify that the Pod is running and that its container is healthy:


Prompt:
Explain this bash code:

kubectl get pod constraints-mem-demo --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the Pod:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the Pod:


Prompt:
Explain this bash code:

kubectl get pod constraints-mem-demo --output=yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the container within that Pod has a memory request of 600 MiB and a memory limit of 800 MiB. These satisfy the constraints imposed by the LimitRange for this namespace:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the container within that Pod has a memory request of 600 MiB and a memory limit of 800 MiB. These satisfy the constraints imposed by the LimitRange for this namespace:


Prompt:
Complete this text code:

resources:
  limits:

Response:
     memory: 800Mi
  requests:
    memory: 600Mi

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Delete your Pod:


Prompt:
Explain this text code:

resources:
  limits:
     memory: 800Mi
  requests:
    memory: 600Mi

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | Delete your Pod:


Prompt:
Explain this bash code:

kubectl delete pod constraints-mem-demo --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. The container specifies a memory request of 800 MiB and a memory limit of 1.5 GiB.

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Here's a manifest for a Pod that has one container. The container specifies a memory request of 800 MiB and a memory limit of 1.5 GiB.


Prompt:
Complete this yaml code:

admin/resource/memory-constraints-pod-2.yaml
apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-2
spec:
  containers:

Response:
  - name: constraints-mem-demo-2-ctr
    image: nginx
    resources:
      limits:
        memory: "1.5Gi"
      requests:
        memory: "800Mi"

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | Attempt to create the Pod:


Prompt:
Explain this yaml code:

admin/resource/memory-constraints-pod-2.yaml
apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-2
spec:
  containers:
  - name: constraints-mem-demo-2-ctr
    image: nginx
    resources:
      limits:
        memory: "1.5Gi"
      requests:
        memory: "800Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Attempt to create the Pod:


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-2
spec:
  containers:

Response:
  - name: constraints-mem-demo-2-ctr
    image: nginx
    resources:
      limits:
        memory: "1.5Gi"
      requests:
        memory: "800Mi"


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-2
spec:
  containers:
  - name: constraints-mem-demo-2-ctr
    image: nginx
    resources:
      limits:
        memory: "1.5Gi"
      requests:
        memory: "800Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Attempt to create the Pod:


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod-2.yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests more memory than is allowed:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests more memory than is allowed:


Prompt:
Complete this yaml code:

admin/resource/memory-constraints-pod-3.yaml
apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-3
spec:
  containers:

Response:
  - name: constraints-mem-demo-3-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "100Mi"


Prompt:
Explain this yaml code:

admin/resource/memory-constraints-pod-3.yaml
apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-3
spec:
  containers:
  - name: constraints-mem-demo-3-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "100Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Attempt to create the Pod:


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-3
spec:
  containers:

Response:
  - name: constraints-mem-demo-3-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "100Mi"


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-3
spec:
  containers:
  - name: constraints-mem-demo-3-ctr
    image: nginx
    resources:
      limits:
        memory: "800Mi"
      requests:
        memory: "100Mi"

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Attempt to create the Pod:


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod-3.yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests less memory than the enforced minimum:

Context: Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod does not get created, because it defines a container that requests less memory than the enforced minimum:


Prompt:
Complete this yaml code:

admin/resource/memory-constraints-pod-4.yaml
apiVersion: v1
kind: Pod
metadata:

Response:
  name: constraints-mem-demo-4
spec:
  containers:
  - name: constraints-mem-demo-4-ctr
    image: nginx


Prompt:
Explain this yaml code:

admin/resource/memory-constraints-pod-4.yaml
apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-4
spec:
  containers:
  - name: constraints-mem-demo-4-ctr
    image: nginx

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the Pod:


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-4

Response:
spec:
  containers:
  - name: constraints-mem-demo-4-ctr
    image: nginx


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Pod
metadata:
  name: constraints-mem-demo-4
spec:
  containers:
  - name: constraints-mem-demo-4-ctr
    image: nginx

Response: This yaml code Configure Minimum and Maximum Memory Constraints for a Namespace | Create the Pod:


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/admin/resource/memory-constraints-pod-4.yaml --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | View detailed information about the Pod:


Prompt:
Explain this bash code:

kubectl get pod constraints-mem-demo-4 --namespace=constraints-mem-example --output=yaml

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The output shows that the Pod's only container has a memory request of 1 GiB and a memory limit of 1 GiB. How did that container get those values?


Prompt:
Explain this text code:

# Look for the "Requests:" section of the output
kubectl describe pod constraints-mem-demo-4 --namespace=constraints-mem-example

Response: This text code Configure Minimum and Maximum Memory Constraints for a Namespace | At this point, your Pod might be running or it might not be running. Recall that a prerequisite for this task is that your Nodes have at least 1 GiB of memory. If each of your Nodes has only 1 GiB of


Prompt:
Explain this bash code:

kubectl delete pod constraints-mem-demo-4 --namespace=constraints-mem-example

Response: This bash code Configure Minimum and Maximum Memory Constraints for a Namespace | The maximum and minimum memory constraints imposed on a namespace by a LimitRange are enforced only when a Pod is created or updated. If you change the LimitRange, it does not affect Pods that were cr


Prompt:
Complete this yaml code:

apiVersion: v1
kind: Service
metadata:
  name: zk-hs
  labels:
    app: zk
spec:
  ports:
  - port: 2888
    name: server
  - port: 3888
    name: leader-election
  clusterIP: None
  selector:
    app: zk
---
apiVersion: v1
kind: Service
metadata:
  name: zk-cs
  labels:
    app: zk
spec:
  ports:
  - port: 2181
    name: client
  selector:
    app: zk
---
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: zk-pdb
spec:
  selector:
    matchLabels:
      app: zk
  maxUnavailable: 1
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: zk
spec:
  selector:
    matchLabels:
      app: zk
  serviceName: zk-hs
  replicas: 3
  updateStrategy:
    type: RollingUpdate
  podManagementPolicy: OrderedReady
  template:
    metadata:
      labels:
        app: zk
    spec:
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: "app"
                    operator: In
                    values:
                    - zk

Response:
              topologyKey: "kubernetes.io/hostname"
      containers:
      - name: kubernetes-zookeeper
        imagePullPolicy: Always
        image: "registry.k8s.io/kubernetes-zookeeper:1.0-3.4.10"
        resources:
          requests:
            memory: "1Gi"
            cpu: "0.5"
        ports:
        - containerPort: 2181
          name: client
        - containerPort: 2888
          name: server
        - containerPort: 3888
          name: leader-election
        command:
        - sh
        - -c
        - "start-zookeeper \
          --servers=3 \
          --data_dir=/var/lib/zookeeper/data \
          --data_log_dir=/var/lib/zookeeper/data/log \
          --conf_dir=/opt/zookeeper/conf \
          --client_port=2181 \
          --election_port=3888 \
          --server_port=2888 \
          --tick_time=2000 \
          --init_limit=10 \
          --sync_limit=5 \
          --heap=512M \
          --max_client_cnxns=60 \
          --snap_retain_count=3 \
          --purge_interval=12 \
          --max_session_timeout=40000 \
          --min_session_timeout=4000 \
          --log_level=INFO"
        readinessProbe:
          exec:
            command:
            - sh
            - -c
            - "zookeeper-ready 2181"
          initialDelaySeconds: 10
          timeoutSeconds: 5
        livenessProbe:
          exec:
            command:
            - sh
            - -c
            - "zookeeper-ready 2181"
          initialDelaySeconds: 10
          timeoutSeconds: 5
        volumeMounts:
        - name: datadir
          mountPath: /var/lib/zookeeper
      securityContext:
        runAsUser: 1000
        fsGroup: 1000
  volumeClaimTemplates:
  - metadata:
      name: datadir
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 10Gi

Context: Running ZooKeeper, A Distributed System Coordinator | Open a terminal, and use the kubectl apply command to create the manifest.


Prompt:
Explain this yaml code:

apiVersion: v1
kind: Service
metadata:
  name: zk-hs
  labels:
    app: zk
spec:
  ports:
  - port: 2888
    name: server
  - port: 3888
    name: leader-election
  clusterIP: None
  selector:
    app: zk
---
apiVersion: v1
kind: Service
metadata:
  name: zk-cs
  labels:
    app: zk
spec:
  ports:
  - port: 2181
    name: client
  selector:
    app: zk
---
apiVersion: policy/v1
kind: PodDisruptionBudget
metadata:
  name: zk-pdb
spec:
  selector:
    matchLabels:
      app: zk
  maxUnavailable: 1
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: zk
spec:
  selector:
    matchLabels:
      app: zk
  serviceName: zk-hs
  replicas: 3
  updateStrategy:
    type: RollingUpdate
  podManagementPolicy: OrderedReady
  template:
    metadata:
      labels:
        app: zk
    spec:
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: "app"
                    operator: In
                    values:
                    - zk
              topologyKey: "kubernetes.io/hostname"
      containers:
      - name: kubernetes-zookeeper
        imagePullPolicy: Always
        image: "registry.k8s.io/kubernetes-zookeeper:1.0-3.4.10"
        resources:
          requests:
            memory: "1Gi"
            cpu: "0.5"
        ports:
        - containerPort: 2181
          name: client
        - containerPort: 2888
          name: server
        - containerPort: 3888
          name: leader-election
        command:
        - sh
        - -c
        - "start-zookeeper \
          --servers=3 \
          --data_dir=/var/lib/zookeeper/data \
          --data_log_dir=/var/lib/zookeeper/data/log \
          --conf_dir=/opt/zookeeper/conf \
          --client_port=2181 \
          --election_port=3888 \
          --server_port=2888 \
          --tick_time=2000 \
          --init_limit=10 \
          --sync_limit=5 \
          --heap=512M \
          --max_client_cnxns=60 \
          --snap_retain_count=3 \
          --purge_interval=12 \
          --max_session_timeout=40000 \
          --min_session_timeout=4000 \
          --log_level=INFO"
        readinessProbe:
          exec:
            command:
            - sh
            - -c
            - "zookeeper-ready 2181"
          initialDelaySeconds: 10
          timeoutSeconds: 5
        livenessProbe:
          exec:
            command:
            - sh
            - -c
            - "zookeeper-ready 2181"
          initialDelaySeconds: 10
          timeoutSeconds: 5
        volumeMounts:
        - name: datadir
          mountPath: /var/lib/zookeeper
      securityContext:
        runAsUser: 1000
        fsGroup: 1000
  volumeClaimTemplates:
  - metadata:
      name: datadir
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 10Gi

Response: This yaml code Running ZooKeeper, A Distributed System Coordinator | Open a terminal, and use the kubectl apply command to create the manifest.


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/application/zookeeper/zookeeper.yaml

Response: This bash code Running ZooKeeper, A Distributed System Coordinator | This creates the zk-hs Headless Service, the zk-cs Service, the zk-pdb PodDisruptionBudget, and the zk StatefulSet.

Context: Running ZooKeeper, A Distributed System Coordinator | This creates the zk-hs Headless Service, the zk-cs Service, the zk-pdb PodDisruptionBudget, and the zk StatefulSet.


Prompt:
Complete this text code:

service/zk-hs created
service/zk-cs created

Response:
poddisruptionbudget.policy/zk-pdb created
statefulset.apps/zk created

Context: Running ZooKeeper, A Distributed System Coordinator | Use kubectl get to watch the StatefulSet controller create the StatefulSet's Pods.


Prompt:
Explain this text code:

service/zk-hs created
service/zk-cs created
poddisruptionbudget.policy/zk-pdb created
statefulset.apps/zk created

Response: This text code Running ZooKeeper, A Distributed System Coordinator | Use kubectl get to watch the StatefulSet controller create the StatefulSet's Pods.


Prompt:
Complete this text code:

NAME      READY     STATUS    RESTARTS   AGE
zk-0      0/1       Pending   0          0s
zk-0      0/1       Pending   0         0s
zk-0      0/1       ContainerCreating   0         0s
zk-0      0/1       Running   0         19s
zk-0      1/1       Running   0         40s
zk-1      0/1       Pending   0         0s
zk-1      0/1       Pending   0         0s

Response:
zk-1      0/1       ContainerCreating   0         0s
zk-1      0/1       Running   0         18s
zk-1      1/1       Running   0         40s
zk-2      0/1       Pending   0         0s
zk-2      0/1       Pending   0         0s
zk-2      0/1       ContainerCreating   0         0s
zk-2      0/1       Running   0         19s
zk-2      1/1       Running   0         40s

Context: Running ZooKeeper, A Distributed System Coordinator | The StatefulSet controller creates three Pods, and each Pod has a container with a ZooKeeper server.


Prompt:
Explain this text code:

NAME      READY     STATUS    RESTARTS   AGE
zk-0      0/1       Pending   0          0s
zk-0      0/1       Pending   0         0s
zk-0      0/1       ContainerCreating   0         0s
zk-0      0/1       Running   0         19s
zk-0      1/1       Running   0         40s
zk-1      0/1       Pending   0         0s
zk-1      0/1       Pending   0         0s
zk-1      0/1       ContainerCreating   0         0s
zk-1      0/1       Running   0         18s
zk-1      1/1       Running   0         40s
zk-2      0/1       Pending   0         0s
zk-2      0/1       Pending   0         0s
zk-2      0/1       ContainerCreating   0         0s
zk-2      0/1       Running   0         19s
zk-2      1/1       Running   0         40s

Response: This text code Running ZooKeeper, A Distributed System Coordinator | The StatefulSet controller creates three Pods, and each Pod has a container with a ZooKeeper server.


Prompt:
Explain this text code:

for i in 0 1 2; do kubectl exec zk-$i -- hostname; done

Response: This text code Running ZooKeeper, A Distributed System Coordinator | The StatefulSet controller provides each Pod with a unique hostname based on its ordinal index. The hostnames take the form of <statefulset name>-<ordinal index>. Because the replicas field of the zk

Context: Running ZooKeeper, A Distributed System Coordinator | The StatefulSet controller provides each Pod with a unique hostname based on its ordinal index. The hostnames take the form of <statefulset name>-<ordinal index>. Because the replicas field of the zk


Prompt:
Explain this text code:

for i in 0 1 2; do echo "myid zk-$i";kubectl exec zk-$i -- cat /var/lib/zookeeper/data/myid; done

Response: This text code Running ZooKeeper, A Distributed System Coordinator | Because the identifiers are natural numbers and the ordinal indices are non-negative integers, you can generate an identifier by adding 1 to the ordinal.

Context: Running ZooKeeper, A Distributed System Coordinator | Because the identifiers are natural numbers and the ordinal indices are non-negative integers, you can generate an identifier by adding 1 to the ordinal.


Prompt:
Explain this text code:

for i in 0 1 2; do kubectl exec zk-$i -- hostname -f; done

Response: This text code Running ZooKeeper, A Distributed System Coordinator | The zk-hs Service creates a domain for all of the Pods, zk-hs.default.svc.cluster.local.

Context: Running ZooKeeper, A Distributed System Coordinator | The zk-hs Service creates a domain for all of the Pods, zk-hs.default.svc.cluster.local.


Prompt:
Explain this text code:

zk-0.zk-hs.default.svc.cluster.local
zk-1.zk-hs.default.svc.cluster.local
zk-2.zk-hs.default.svc.cluster.local

Response: This text code Running ZooKeeper, A Distributed System Coordinator | The A records in Kubernetes DNS resolve the FQDNs to the Pods' IP addresses. If Kubernetes reschedules the Pods, it will update the A records with the Pods' new IP addresses, but the A records names w

Context: Running ZooKeeper, A Distributed System Coordinator | The A records in Kubernetes DNS resolve the FQDNs to the Pods' IP addresses. If Kubernetes reschedules the Pods, it will update the A records with the Pods' new IP addresses, but the A records names w


Prompt:
Explain this bash code:

kubectl exec zk-0 -- cat /opt/zookeeper/conf/zoo.cfg

Response: This bash code Running ZooKeeper, A Distributed System Coordinator | In the server.1, server.2, and server.3 properties at the bottom of the file, the 1, 2, and 3 correspond to the identifiers in the ZooKeeper servers' myid files. They are set to the FQDNs for the Pods

Context: Running ZooKeeper, A Distributed System Coordinator | In the server.1, server.2, and server.3 properties at the bottom of the file, the 1, 2, and 3 correspond to the identifiers in the ZooKeeper servers' myid files. They are set to the FQDNs for the Pods


Prompt:
Complete this text code:

clientPort=2181
dataDir=/var/lib/zookeeper/data
dataLogDir=/var/lib/zookeeper/log
tickTime=2000
initLimit=10
syncLimit=2000
maxClientCnxns=60

Response:
minSessionTimeout= 4000
maxSessionTimeout= 40000
autopurge.snapRetainCount=3
autopurge.purgeInterval=0
server.1=zk-0.zk-hs.default.svc.cluster.local:2888:3888
server.2=zk-1.zk-hs.default.svc.cluster.local:2888:3888
server.3=zk-2.zk-hs.default.svc.cluster.local:2888:3888

Context: Running ZooKeeper, A Distributed System Coordinator | Consensus protocols require that the identifiers of each participant be unique. No two participants in the Zab protocol should claim the same unique identifier. This is necessary to allow the processe


Prompt:
Explain this text code:

clientPort=2181
dataDir=/var/lib/zookeeper/data
dataLogDir=/var/lib/zookeeper/log
tickTime=2000
initLimit=10
syncLimit=2000
maxClientCnxns=60
minSessionTimeout= 4000
maxSessionTimeout= 40000
autopurge.snapRetainCount=3
autopurge.purgeInterval=0
server.1=zk-0.zk-hs.default.svc.cluster.local:2888:3888
server.2=zk-1.zk-hs.default.svc.cluster.local:2888:3888
server.3=zk-2.zk-hs.default.svc.cluster.local:2888:3888

Response: This text code Running ZooKeeper, A Distributed System Coordinator | Consensus protocols require that the identifiers of each participant be unique. No two participants in the Zab protocol should claim the same unique identifier. This is necessary to allow the processe


Prompt:
Complete this text code:

NAME      READY     STATUS    RESTARTS   AGE
zk-0      0/1       Pending   0          0s
zk-0      0/1       Pending   0         0s
zk-0      0/1       ContainerCreating   0         0s
zk-0      0/1       Running   0         19s
zk-0      1/1       Running   0         40s
zk-1      0/1       Pending   0         0s
zk-1      0/1       Pending   0         0s

Response:
zk-1      0/1       ContainerCreating   0         0s
zk-1      0/1       Running   0         18s
zk-1      1/1       Running   0         40s
zk-2      0/1       Pending   0         0s
zk-2      0/1       Pending   0         0s
zk-2      0/1       ContainerCreating   0         0s
zk-2      0/1       Running   0         19s
zk-2      1/1       Running   0         40s

Context: Running ZooKeeper, A Distributed System Coordinator | The A records for each Pod are entered when the Pod becomes Ready. Therefore, the FQDNs of the ZooKeeper servers will resolve to a single endpoint, and that endpoint will be the unique ZooKeeper serve


Prompt:
Explain this text code:

NAME      READY     STATUS    RESTARTS   AGE
zk-0      0/1       Pending   0          0s
zk-0      0/1       Pending   0         0s
zk-0      0/1       ContainerCreating   0         0s
zk-0      0/1       Running   0         19s
zk-0      1/1       Running   0         40s
zk-1      0/1       Pending   0         0s
zk-1      0/1       Pending   0         0s
zk-1      0/1       ContainerCreating   0         0s
zk-1      0/1       Running   0         18s
zk-1      1/1       Running   0         40s
zk-2      0/1       Pending   0         0s
zk-2      0/1       Pending   0         0s
zk-2      0/1       ContainerCreating   0         0s
zk-2      0/1       Running   0         19s
zk-2      1/1       Running   0         40s

Response: This text code Running ZooKeeper, A Distributed System Coordinator | The A records for each Pod are entered when the Pod becomes Ready. Therefore, the FQDNs of the ZooKeeper servers will resolve to a single endpoint, and that endpoint will be the unique ZooKeeper serve


Prompt:
Explain this text code:

zk-0.zk-hs.default.svc.cluster.local
zk-1.zk-hs.default.svc.cluster.local
zk-2.zk-hs.default.svc.cluster.local

Response: This text code Running ZooKeeper, A Distributed System Coordinator | This ensures that the servers properties in the ZooKeepers' zoo.cfg files represents a correctly configured ensemble.

Context: Running ZooKeeper, A Distributed System Coordinator | This ensures that the servers properties in the ZooKeepers' zoo.cfg files represents a correctly configured ensemble.


Prompt:
Explain this text code:

server.1=zk-0.zk-hs.default.svc.cluster.local:2888:3888
server.2=zk-1.zk-hs.default.svc.cluster.local:2888:3888
server.3=zk-2.zk-hs.default.svc.cluster.local:2888:3888

Response: This text code Running ZooKeeper, A Distributed System Coordinator | When the servers use the Zab protocol to attempt to commit a value, they will either achieve consensus and commit the value (if leader election has succeeded and at least two of the Pods are Running a

Context: Running ZooKeeper, A Distributed System Coordinator | When the servers use the Zab protocol to attempt to commit a value, they will either achieve consensus and commit the value (if leader election has succeeded and at least two of the Pods are Running a


Prompt:
Complete this text code:

WATCHER::

Response:
WatchedEvent state:SyncConnected type:None path:null
Created /hello

Context: Running ZooKeeper, A Distributed System Coordinator | To get the data from the zk-1 Pod use the following command.


Prompt:
Explain this text code:

WATCHER::

WatchedEvent state:SyncConnected type:None path:null
Created /hello

Response: This text code Running ZooKeeper, A Distributed System Coordinator | To get the data from the zk-1 Pod use the following command.


Prompt:
Complete this text code:

WATCHER::

WatchedEvent state:SyncConnected type:None path:null
world
cZxid = 0x100000002
ctime = Thu Dec 08 15:13:30 UTC 2016
mZxid = 0x100000002

Response:
mtime = Thu Dec 08 15:13:30 UTC 2016
pZxid = 0x100000002
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 5
numChildren = 0

Context: Running ZooKeeper, A Distributed System Coordinator | As mentioned in the ZooKeeper Basics section, ZooKeeper commits all entries to a durable WAL, and periodically writes snapshots in memory state, to storage media. Using WALs to provide durability is a


Prompt:
Explain this text code:

WATCHER::

WatchedEvent state:SyncConnected type:None path:null
world
cZxid = 0x100000002
ctime = Thu Dec 08 15:13:30 UTC 2016
mZxid = 0x100000002
mtime = Thu Dec 08 15:13:30 UTC 2016
pZxid = 0x100000002
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 5
numChildren = 0

Response: This text code Running ZooKeeper, A Distributed System Coordinator | As mentioned in the ZooKeeper Basics section, ZooKeeper commits all entries to a durable WAL, and periodically writes snapshots in memory state, to storage media. Using WALs to provide durability is a


Prompt:
Complete this text code:

zk-2      1/1       Terminating   0         9m
zk-0      1/1       Terminating   0         11m
zk-1      1/1       Terminating   0         10m
zk-2      0/1       Terminating   0         9m
zk-2      0/1       Terminating   0         9m
zk-2      0/1       Terminating   0         9m

Response:
zk-1      0/1       Terminating   0         10m
zk-1      0/1       Terminating   0         10m
zk-1      0/1       Terminating   0         10m
zk-0      0/1       Terminating   0         11m
zk-0      0/1       Terminating   0         11m
zk-0      0/1       Terminating   0         11m

Context: Running ZooKeeper, A Distributed System Coordinator | Reapply the manifest in zookeeper.yaml.


Prompt:
Explain this text code:

zk-2      1/1       Terminating   0         9m
zk-0      1/1       Terminating   0         11m
zk-1      1/1       Terminating   0         10m
zk-2      0/1       Terminating   0         9m
zk-2      0/1       Terminating   0         9m
zk-2      0/1       Terminating   0         9m
zk-1      0/1       Terminating   0         10m
zk-1      0/1       Terminating   0         10m
zk-1      0/1       Terminating   0         10m
zk-0      0/1       Terminating   0         11m
zk-0      0/1       Terminating   0         11m
zk-0      0/1       Terminating   0         11m

Response: This text code Running ZooKeeper, A Distributed System Coordinator | Reapply the manifest in zookeeper.yaml.


Prompt:
Explain this bash code:

kubectl apply -f https://k8s.io/examples/application/zookeeper/zookeeper.yaml

Response: This bash code Running ZooKeeper, A Distributed System Coordinator | This creates the zk StatefulSet object, but the other API objects in the manifest are not modified because they already exist.

Context: Running ZooKeeper, A Distributed System Coordinator | This creates the zk StatefulSet object, but the other API objects in the manifest are not modified because they already exist.


Prompt:
Complete this text code:

NAME      READY     STATUS    RESTARTS   AGE
zk-0      0/1       Pending   0          0s
zk-0      0/1       Pending   0         0s
zk-0      0/1       ContainerCreating   0         0s
zk-0      0/1       Running   0         19s
zk-0      1/1       Running   0         40s
zk-1      0/1       Pending   0         0s
zk-1      0/1       Pending   0         0s

Response:
zk-1      0/1       ContainerCreating   0         0s
zk-1      0/1       Running   0         18s
zk-1      1/1       Running   0         40s
zk-2      0/1       Pending   0         0s
zk-2      0/1       Pending   0         0s
zk-2      0/1       ContainerCreating   0         0s
zk-2      0/1       Running   0         19s
zk-2      1/1       Running   0         40s

Context: Running ZooKeeper, A Distributed System Coordinator | Use the command below to get the value you entered during the sanity test, from the zk-2 Pod.


Prompt:
Explain this text code:

NAME      READY     STATUS    RESTARTS   AGE
zk-0      0/1       Pending   0          0s
zk-0      0/1       Pending   0         0s
zk-0      0/1       ContainerCreating   0         0s
zk-0      0/1       Running   0         19s
zk-0      1/1       Running   0         40s
zk-1      0/1       Pending   0         0s
zk-1      0/1       Pending   0         0s
zk-1      0/1       ContainerCreating   0         0s
zk-1      0/1       Running   0         18s
zk-1      1/1       Running   0         40s
zk-2      0/1       Pending   0         0s
zk-2      0/1       Pending   0         0s
zk-2      0/1       ContainerCreating   0         0s
zk-2      0/1       Running   0         19s
zk-2      1/1       Running   0         40s

Response: This text code Running ZooKeeper, A Distributed System Coordinator | Use the command below to get the value you entered during the sanity test, from the zk-2 Pod.


Prompt:
Complete this text code:

WATCHER::

WatchedEvent state:SyncConnected type:None path:null
world
cZxid = 0x100000002
ctime = Thu Dec 08 15:13:30 UTC 2016
mZxid = 0x100000002

Response:
mtime = Thu Dec 08 15:13:30 UTC 2016
pZxid = 0x100000002
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 5
numChildren = 0

Context: Running ZooKeeper, A Distributed System Coordinator | The volumeClaimTemplates field of the zk StatefulSet's spec specifies a PersistentVolume provisioned for each Pod.


Prompt:
Explain this text code:

WATCHER::

WatchedEvent state:SyncConnected type:None path:null
world
cZxid = 0x100000002
ctime = Thu Dec 08 15:13:30 UTC 2016
mZxid = 0x100000002
mtime = Thu Dec 08 15:13:30 UTC 2016
pZxid = 0x100000002
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 5
numChildren = 0

Response: This text code Running ZooKeeper, A Distributed System Coordinator | The volumeClaimTemplates field of the zk StatefulSet's spec specifies a PersistentVolume provisioned for each Pod.


Prompt:
Complete this text code:

volumeClaimTemplates:
  - metadata:
      name: datadir
      annotations:
        volume.alpha.kubernetes.io/storage-class: anything

Response:
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 20Gi

Context: Running ZooKeeper, A Distributed System Coordinator | The StatefulSet controller generates a PersistentVolumeClaim for each Pod in the StatefulSet.


Prompt:
Explain this text code:

volumeClaimTemplates:
  - metadata:
      name: datadir
      annotations:
        volume.alpha.kubernetes.io/storage-class: anything
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 20Gi

Response: This text code Running ZooKeeper, A Distributed System Coordinator | The StatefulSet controller generates a PersistentVolumeClaim for each Pod in the StatefulSet.


Prompt:
Complete this text code:

NAME           STATUS    VOLUME                                     CAPACITY   ACCESSMODES   AGE
datadir-zk-0   Bound     pvc-bed742cd-bcb1-11e6-994f-42010a800002   20Gi       RWO           1h

Response:
datadir-zk-1   Bound     pvc-bedd27d2-bcb1-11e6-994f-42010a800002   20Gi       RWO           1h
datadir-zk-2   Bound     pvc-bee0817e-bcb1-11e6-994f-42010a800002   20Gi       RWO           1h

Context: Running ZooKeeper, A Distributed System Coordinator | The volumeMounts section of the StatefulSet's container template mounts the PersistentVolumes in the ZooKeeper servers' data directories.


Prompt:
Explain this text code:

NAME           STATUS    VOLUME                                     CAPACITY   ACCESSMODES   AGE
datadir-zk-0   Bound     pvc-bed742cd-bcb1-11e6-994f-42010a800002   20Gi       RWO           1h
datadir-zk-1   Bound     pvc-bedd27d2-bcb1-11e6-994f-42010a800002   20Gi       RWO           1h
datadir-zk-2   Bound     pvc-bee0817e-bcb1-11e6-994f-42010a800002   20Gi       RWO           1h

Response: This text code Running ZooKeeper, A Distributed System Coordinator | The volumeMounts section of the StatefulSet's container template mounts the PersistentVolumes in the ZooKeeper servers' data directories.


Prompt:
Explain this text code:

volumeMounts:
- name: datadir
  mountPath: /var/lib/zookeeper

Response: This text code Running ZooKeeper, A Distributed System Coordinator | When a Pod in the zk StatefulSet is (re)scheduled, it will always have the same PersistentVolume mounted to the ZooKeeper server's data directory. Even when the Pods are rescheduled, all the writes ma

Context: Running ZooKeeper, A Distributed System Coordinator | When a Pod in the zk StatefulSet is (re)scheduled, it will always have the same PersistentVolume mounted to the ZooKeeper server's data directory. Even when the Pods are rescheduled, all the writes ma


Prompt:
Complete this text code:

…
command:
      - sh
      - -c
      - "start-zookeeper \
        --servers=3 \
        --data_dir=/var/lib/zookeeper/data \
        --data_log_dir=/var/lib/zookeeper/data/log \
        --conf_dir=/opt/zookeeper/conf \
        --client_port=2181 \
        --election_port=3888 \

Response:
        --server_port=2888 \
        --tick_time=2000 \
        --init_limit=10 \
        --sync_limit=5 \
        --heap=512M \
        --max_client_cnxns=60 \
        --snap_retain_count=3 \
        --purge_interval=12 \
        --max_session_timeout=40000 \
        --min_session_timeout=4000 \
        --log_level=INFO"
…

Context: Running ZooKeeper, A Distributed System Coordinator | The command used to start the ZooKeeper servers passed the configuration as command line parameter. You can also use environment variables to pass configuration to the ensemble.


Prompt:
Explain this text code:

…
command:
      - sh
      - -c
      - "start-zookeeper \
        --servers=3 \
        --data_dir=/var/lib/zookeeper/data \
        --data_log_dir=/var/lib/zookeeper/data/log \
        --conf_dir=/opt/zookeeper/conf \
        --client_port=2181 \
        --election_port=3888 \
        --server_port=2888 \
        --tick_time=2000 \
        --init_limit=10 \
        --sync_limit=5 \
        --heap=512M \
        --max_client_cnxns=60 \
        --snap_retain_count=3 \
        --purge_interval=12 \
        --max_session_timeout=40000 \
        --min_session_timeout=4000 \
        --log_level=INFO"
…

Response: This text code Running ZooKeeper, A Distributed System Coordinator | The command used to start the ZooKeeper servers passed the configuration as command line parameter. You can also use environment variables to pass configuration to the ensemble.


Prompt:
Explain this bash code:

kubectl exec zk-0 cat /usr/etc/zookeeper/log4j.properties

Response: This bash code Running ZooKeeper, A Distributed System Coordinator | The logging configuration below will cause the ZooKeeper process to write all of its logs to the standard output file stream.

Context: Running ZooKeeper, A Distributed System Coordinator | The logging configuration below will cause the ZooKeeper process to write all of its logs to the standard output file stream.


Prompt:
Complete this text code:

zookeeper.root.logger=CONSOLE
zookeeper.console.threshold=INFO
log4j.rootLogger=${zookeeper.root.logger}

Response:
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=${zookeeper.console.threshold}
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} [myid:%X{myid}] - %-5p [%t:%C{1}@%L] - %m%n

Context: Running ZooKeeper, A Distributed System Coordinator | This is the simplest possible way to safely log inside the container. Because the applications write logs to standard out, Kubernetes will handle log rotation for you. Kubernetes also implements a san


Prompt:
Explain this text code:

zookeeper.root.logger=CONSOLE
zookeeper.console.threshold=INFO
log4j.rootLogger=${zookeeper.root.logger}
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=${zookeeper.console.threshold}
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} [myid:%X{myid}] - %-5p [%t:%C{1}@%L] - %m%n

Response: This text code Running ZooKeeper, A Distributed System Coordinator | This is the simplest possible way to safely log inside the container. Because the applications write logs to standard out, Kubernetes will handle log rotation for you. Kubernetes also implements a san


Prompt:
Complete this text code:

2016-12-06 19:34:16,236 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52740
2016-12-06 19:34:16,237 [myid:1] - INFO  [Thread-1136:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52740 (no session established for client)
2016-12-06 19:34:26,155 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52749
2016-12-06 19:34:26,155 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52749
2016-12-06 19:34:26,156 [myid:1] - INFO  [Thread-1137:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52749 (no session established for client)
2016-12-06 19:34:26,222 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52750
2016-12-06 19:34:26,222 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52750
2016-12-06 19:34:26,226 [myid:1] - INFO  [Thread-1138:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52750 (no session established for client)
2016-12-06 19:34:36,151 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52760
2016-12-06 19:34:36,152 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52760

Response:
2016-12-06 19:34:36,152 [myid:1] - INFO  [Thread-1139:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52760 (no session established for client)
2016-12-06 19:34:36,230 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52761
2016-12-06 19:34:36,231 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52761
2016-12-06 19:34:36,231 [myid:1] - INFO  [Thread-1140:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52761 (no session established for client)
2016-12-06 19:34:46,149 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52767
2016-12-06 19:34:46,149 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52767
2016-12-06 19:34:46,149 [myid:1] - INFO  [Thread-1141:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52767 (no session established for client)
2016-12-06 19:34:46,230 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52768
2016-12-06 19:34:46,230 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52768
2016-12-06 19:34:46,230 [myid:1] - INFO  [Thread-1142:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52768 (no session established for client)

Context: Running ZooKeeper, A Distributed System Coordinator | Kubernetes integrates with many logging solutions. You can choose a logging solution that best fits your cluster and applications. For cluster-level logging and aggregation, consider deploying a sidec


Prompt:
Explain this text code:

2016-12-06 19:34:16,236 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52740
2016-12-06 19:34:16,237 [myid:1] - INFO  [Thread-1136:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52740 (no session established for client)
2016-12-06 19:34:26,155 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52749
2016-12-06 19:34:26,155 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52749
2016-12-06 19:34:26,156 [myid:1] - INFO  [Thread-1137:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52749 (no session established for client)
2016-12-06 19:34:26,222 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52750
2016-12-06 19:34:26,222 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52750
2016-12-06 19:34:26,226 [myid:1] - INFO  [Thread-1138:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52750 (no session established for client)
2016-12-06 19:34:36,151 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52760
2016-12-06 19:34:36,152 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52760
2016-12-06 19:34:36,152 [myid:1] - INFO  [Thread-1139:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52760 (no session established for client)
2016-12-06 19:34:36,230 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52761
2016-12-06 19:34:36,231 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52761
2016-12-06 19:34:36,231 [myid:1] - INFO  [Thread-1140:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52761 (no session established for client)
2016-12-06 19:34:46,149 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52767
2016-12-06 19:34:46,149 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52767
2016-12-06 19:34:46,149 [myid:1] - INFO  [Thread-1141:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52767 (no session established for client)
2016-12-06 19:34:46,230 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:52768
2016-12-06 19:34:46,230 [myid:1] - INFO  [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@827] - Processing ruok command from /127.0.0.1:52768
2016-12-06 19:34:46,230 [myid:1] - INFO  [Thread-1142:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:52768 (no session established for client)

Response: This text code Running ZooKeeper, A Distributed System Coordinator | Kubernetes integrates with many logging solutions. You can choose a logging solution that best fits your cluster and applications. For cluster-level logging and aggregation, consider deploying a sidec