drone-kubernetes/update.sh

#!/bin/bash

set -e

if [ -z ${PLUGIN_NAMESPACE} ]; then
  PLUGIN_NAMESPACE="default"
fi

if [ -z ${PLUGIN_KUBERNETES_USER} ]; then
  PLUGIN_KUBERNETES_USER="default"
fi

if [ ! -z ${PLUGIN_KUBERNETES_TOKEN} ]; then
  KUBERNETES_TOKEN=$PLUGIN_KUBERNETES_TOKEN
fi

if [ ! -z ${PLUGIN_KUBERNETES_SERVER} ]; then
  KUBERNETES_SERVER=$PLUGIN_KUBERNETES_SERVER
fi

if [ ! -z ${PLUGIN_KUBERNETES_CERT} ]; then
  KUBERNETES_CERT=${PLUGIN_KUBERNETES_CERT}
fi

kubectl config set-credentials default --token=${KUBERNETES_TOKEN}
if [ ! -z ${KUBERNETES_CERT} ]; then
  echo ${KUBERNETES_CERT} | base64 -d > ca.crt
  kubectl config set-cluster default --server=${KUBERNETES_SERVER} --certificate-authority=ca.crt
else
  echo "WARNING: Using insecure connection to cluster"
  kubectl config set-cluster default --server=${KUBERNETES_SERVER} --insecure-skip-tls-verify=true
fi

kubectl config set-context default --cluster=default --user=${PLUGIN_KUBERNETES_USER}
kubectl config use-context default

# kubectl version
if [ ! -z ${PLUGIN_USE_STATEFULSET} ]; then
    echo "WARNING: Currently updating statefulset ${PLUGIN_STATEFULSET}."

    IFS=',' read -r -a STATEFULSETS <<< "${PLUGIN_STATEFULSET}"
    IFS=',' read -r -a CONTAINERS <<< "${PLUGIN_CONTAINER}"
    for DEPLOY in ${STATEFULSETS[@]}; do
      echo Deploying statefulset to $KUBERNETES_SERVER
      for CONTAINER in ${CONTAINERS[@]}; do
        if [[ ${PLUGIN_FORCE} == "true" ]]; then
          kubectl -n ${PLUGIN_NAMESPACE} set image statefulset/${DEPLOY} \
            ${CONTAINER}=${PLUGIN_REPO}:${PLUGIN_TAG}FORCE
        fi
        kubectl -n ${PLUGIN_NAMESPACE} set image statefulset/${DEPLOY} \
          ${CONTAINER}=${PLUGIN_REPO}:${PLUGIN_TAG} --record
      done
    done

else
    echo "WARNING: Currently updating deployment ${PLUGIN_DEPLOYMENT}"

    IFS=',' read -r -a DEPLOYMENTS <<< "${PLUGIN_DEPLOYMENT}"
    IFS=',' read -r -a CONTAINERS <<< "${PLUGIN_CONTAINER}"
    for DEPLOY in ${DEPLOYMENTS[@]}; do
      echo Deploying to $KUBERNETES_SERVER
      for CONTAINER in ${CONTAINERS[@]}; do
        if [[ ${PLUGIN_FORCE} == "true" ]]; then
          kubectl -n ${PLUGIN_NAMESPACE} set image deployment/${DEPLOY} \
            ${CONTAINER}=${PLUGIN_REPO}:${PLUGIN_TAG}FORCE
        fi
        kubectl -n ${PLUGIN_NAMESPACE} set image deployment/${DEPLOY} \
          ${CONTAINER}=${PLUGIN_REPO}:${PLUGIN_TAG} --record
      done
    done

fi