= k8s/Admin snippets =

== Multiple pod operations ==
 * Using xargs.
   * Note: xargs 
     * The -t option prints each command that will be executed to the terminal.
     * The -p command will print the command to be executed and prompt the user to run it.
     * -I flag. This replaces occurrences of the argument with the argument passed to xargs e.g. -I % 'echo %;echo %'
     * -n 1 , number of parameters to group on command line
   * {{{
kubectl get pods | grep etl | awk -F' ' '{print $1}' | xargs -t kubectl get pod
     }}}

 * Launch container in k8s cluster {{{ 
$ kubectl run -i --tty --rm my-container --image=debian /bin/bash
# apt-get update && apt-get install openssh-client -y
 }}}

 * dns lookup on minimalist pod with no dig / nslookup use getent {{{
getent hosts www.google.com
}}}

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CategoryK8sKubernetes