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PS1-setup.md

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How to setup PS1 in bash/zsh

You can use the below methods to set the shell prompt, so you can learn which cluster operating on, like

[user@user ~ (⎈ |stg/user-test-1.zlob.s1:default)]$ date
Tue Sep  7 17:40:35 CST 2021
[user@user ~ (⎈ |stg/user-test-1.zlob.s1:default)]$ oc whoami
system:serviceaccount:default:xxxxxxxxxxxx

Bash

Save the kube-ps1 script to local, and append the below to ~/.bashrc.

source /path/to/kube-ps1.sh ##<---- replace this to the kube-ps1 location
function cluster_function() {
  info="$(ocm backplane status 2> /dev/null)"
  if [ $? -ne 0 ]; then return; fi
  clustername=$(grep "Cluster Name" <<< $info | awk '{print $3}')
  baseid=$(grep "Cluster Basedomain" <<< $info | awk '{print $3}' | cut -d'.' -f1,2)
  echo $clustername.$baseid
}
KUBE_PS1_BINARY=oc
export KUBE_PS1_CLUSTER_FUNCTION=cluster_function
PS1='[\u@\h \W $(kube_ps1)]\$ '

Zsh

With oh-my-zsh enabled

kube-ps1 is included as a plugin in the oh-my-zsh project. To enable it, edit your ~/.zshrc and add the plugin:

plugins=(
  kube-ps1
)

Save the kube-ps1 script to local, and append the below to ~/.zshrc.

source /path/to/kube-ps1.sh ##<---- replace this to your location
function cluster_function() {
  info="$(ocm backplane status 2> /dev/null)"
  if [ $? -ne 0 ]; then return; fi
  clustername=$(grep "Cluster Name" <<< $info | awk '{print $3}')
  baseid=$(grep "Cluster Basedomain" <<< $info | awk '{print $3}' | cut -d'.' -f1,2)
  echo $clustername.$baseid
}
KUBE_PS1_BINARY=oc
export KUBE_PS1_CLUSTER_FUNCTION=cluster_function
PROMPT='$(kube_ps1)'$PROMPT

Without oh-my-zsh enabled

Save the kube-ps1 script to local, and append the below to ~/.zshrc.

source /path/to/kube-ps1.sh ##<---- replace this to your location
function cluster_function() {
  info="$(ocm backplane status 2> /dev/null)"
  if [ $? -ne 0 ]; then return; fi
  clustername=$(grep "Cluster Name" <<< $info | awk '{print $3}')
  baseid=$(grep "Cluster Basedomain" <<< $info | awk '{print $3}' | cut -d'.' -f1,2)
  echo $clustername.$baseid
}
KUBE_PS1_BINARY=oc
export KUBE_PS1_CLUSTER_FUNCTION=cluster_function
PS1='[\u@\h \W $(kube_ps1)]\$ '