kubectl-restart.sh

#!/usr/bin/env bash
: '
Simulate `kubectl rollout restart` commnad in 1.15.
'

set -o pipefail
set -o nounset
set -o errexit

usage() {
cat <<EOF
Usage: kubectl restart -d <deployment name> -n <namespace>

example:

    kubectl restart -d nginx -n test-ns
EOF
exit 0
}
[[ $# -eq 0 ]] && usage

NAMESPACE="default"
DEPLOYMENT=""

while getopts ":n:d:h" arg; do
  case $arg in
    n) # namespace
      NAMESPACE=${OPTARG}
    ;;
    d)  # deployment name
      DEPLOYMENT=${OPTARG}
    ;;
    h) # Display help
      usage
      ;;
    *)
      ;;
    esac
done


[[ -z $DEPLOYMENT ]] && echo "missing deployment name" && exit 1

kubectl patch deployment $DEPLOYMENT -n $NAMESPACE -p '{"spec": {"template": {"metadata": {"annotations": {"cliRestartAt": "'$(date +%s)'"}}}}}'
kubectl rollout status -n $NAMESPACE deployment/${DEPLOYMENT} -w