restart kubernetes pod with a script

delayed_restart.sh

echo "sleeping for ${SLEEP_TIME_BEFORE_RESTART:=86400} seconds"

sleep ${SLEEP_TIME_BEFORE_RESTART:=86400}s # Sleep for a day
curl -LO https://storage.googleapis.com/our-ops/artifacts/kubectl
chmod +x ./kubectl

if [ -z "$KUBE_DEPLOYMENT_TO_RESTART" ] || [ -z "$KUBE_CONTAINER_TO_SET_VAR" ]
then
  echo "I haven't been told which deployment to restart! skipping"
else
  RESTART_PATCH='' read -r -d '' RESTART_PATCH <<EOF
  {
    "spec": {
      "template": {
        "spec": {
          "containers": [
            {
              "name": "${KUBE_CONTAINER_TO_SET_VAR}",
              "env": [
                {
                  "name":"RESTART_",
                  "value": "$(date -uIseconds)"
                }
              ]
            }
          ]
        }
      }
    }
  }
  EOF
  
  ./kubectl patch deployment ${KUBE_DEPLOYMENT_TO_RESTART} -p'${RESTART_PATCH}'
fi