Cleanup existing MR review-app by helm 2

.gitlab/ci/review.gitlab-ci.yml

@@ -148,6 +148,7 @@ review-stop-failed-deployment:
   stage: prepare
   script:
     - delete_failed_release
+    - delete_helm2_release
 
 review-stop:
   extends:

scripts/review_apps/review-apps.sh

@@ -95,6 +95,36 @@ function delete_failed_release() {
   fi
 }
 
+function helm2_deploy_exists() {
+  local namespace="${1}"
+  local release="${2}"
+  local deploy_exists
+
+  echoinfo "Checking if Helm 2 ${release} exists in the ${namespace} namespace..." true
+
+  kubectl get cm -l OWNER=TILLER -n ${namespace} | grep ${release} 2>&1
+  deploy_exists=$?
+
+  echoinfo "Helm 2 release for ${release} is ${deploy_exists}"
+  return $deploy_exists
+}
+
+function delete_helm2_release() {
+  local namespace="${KUBE_NAMESPACE}"
+  local release="${CI_ENVIRONMENT_SLUG}"
+
+  if [ -z "${release}" ]; then
+    echoerr "No release given, aborting the delete!"
+    return
+  fi
+
+  if ! helm2_deploy_exists "${namespace}" "${release}"; then
+    echoinfo "No Review App with ${release} is currently deployed by Helm 2."
+  else
+    echoinfo "Cleaning up ${release} installed by Helm 2"
+    kubectl_cleanup_release "${namespace}" "${release}"
+  fi
+}
 
 function get_pod() {
   local namespace="${KUBE_NAMESPACE}"