Restart tiller if it crashes

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

Author: brandond

entry

@@ -110,6 +110,16 @@ helm_content_decode() {
 	set +e
 }
 
+# tiller sometimes crashes and needs to be restarted to prevent helm_v2 from hanging forever.
+# ref: https://github.com/helm/helm/issues/4753
+run_tiller() {
+	while true; do
+		tiller --listen=127.0.0.1:44134 --storage=secret
+		echo "Restarting tiller..."
+		sleep 5
+	done
+}
+
 export SSL_CERT_FILE=/var/run/secrets/kubernetes.io/serviceaccount/ca.crt
 export SSL_CERT_DIR=/etc/ssl/certs
 export HELM_TLS_CA_CERT=${SSL_CERT_FILE}
@@ -123,7 +133,7 @@ CHART="${CHART//%\{KUBERNETES_API\}%/${KUBERNETES_SERVICE_HOST}:${KUBERNETES_SER
 set +v -x
 
 if [[ "${BOOTSTRAP}" != "true" ]]; then
-	tiller --listen=127.0.0.1:44134 --storage=secret &
+	run_tiller &
 	export HELM_HOST=127.0.0.1:44134
 
 	helm_v2 init --skip-refresh --client-only --stable-repo-url ${STABLE_REPO_URL}