k8s shortcuts to simplify kubectl command for daily use

k8s-shortcuts.sh

alias k8sonline="export KUBECONFIG=~/.kube/config; export PS1=\"[\u@\h k8sonline \W]\$ \""
alias k8stest="export KUBECONFIG=~/.kube/config-test; export PS1=\"[\u@\h k8stest \W]\$ \""

getns(){
    pod="$1"
    kubectl get pod --all-namespaces | grep $pod  |head -1 | awk '{ print $1 }'
}
getpod(){
    pod="$1"
    ns="$( getns $pod )"
    kubectl get pod -n $ns |grep $pod | awk '{ print $1 }'
}

8log () {
  pod=$1
  ns="$( getns $pod )"
  p="$( getpod $pod )"
  shift 1
  kubectl logs --tail=100 -f -n $ns $p $@
}

8logf () {
  pod=$1
  ns="$( getns $pod )"
  if [ "x$ns" = "x" ]; then
    echo "ns not found for $p"
    return 1
  fi

  p="$( getpod $pod )"
  if [ "x$p" = "x" ]; then
    echo "pod not found for $p"
    return 1
  fi

  shift 
  #echo "pod: $pod, ns: $ns, @: $@"
  kubectl logs -n $ns $p $@
}

8del () {
  pod=$1
  ns=$2
  if [ "x$ns" = "x" ]; then
      ns="$( getns $pod )"
  fi
  shift 2
  p="$( getpod $pod )"
  kubectl delete pod -n $ns $p $@
}

8delf () {
  pod=$1
  ns=$2
  if [ "x$ns" = "x" ]; then
      ns="$( getns $pod )"
  fi
  shift 2
  p="$( getpod $pod )"
  kubectl delete pod -n $ns $p --force --grace-period=0 $@
}

8sh () {
  pod=$1
  ns=$2
  if [ "x$ns" = "x" ]; then
      ns="$( getns $pod  )"
  fi
  shift 2
  p="$( getpod $pod | head -1 )"
  kubectl exec -it -n $ns $p sh
}

8s () {
  pod=$1
  ns=$2
  if [ "x$ns" = "x" ]; then
      ns="$( getns $pod  )"
  fi
  shift 2
  p="$( getpod $pod | head -1 )"
  kubectl exec -it -n $ns $p bash
}

8dec () {
  pod=$1
  ns=$2
  if [ "x$ns" = "x" ]; then
      ns="$( getns $pod  )"
  fi
  shift 2
  p="$( getpod $pod )"
  kubectl describe pod -n $ns $p
}

8pods () {
  pod=$1
  kubectl get pods -o wide --all-namespaces | grep $pod
}

8jobs () {
  pod=$1
  kubectl get job -o wide --all-namespaces | grep $pod
}

8rerun () {
  pod=$1
  ns=$2
  if [ "x$ns" = "x" ]; then
      ns="$( getns $pod  )"
  fi
  shift 2
  which jq >/dev/null
  if [ $? -ne 0 ]; then
    echo "no jq command found, exit"
    return
  fi
  p="$( getpod $pod | awk 'NF{NF-=1};1' FS="-" OFS="-" )"

  kubectl get job -n $ns "$p" -o json | jq 'del(.spec.selector)' | jq 'del(.spec.template.metadata.labels)' | kubectl replace --force -f -
}

8info () {
  kubectl get pod,deploy,ep,svc,ing -o wide --all-namespaces | grep $@
}