From c946f3631207721f3c0a840cf6a40680c7f65b19 Mon Sep 17 00:00:00 2001
From: Christian Egli <christian.egli@sbs.ch>
Date: Thu, 26 Oct 2017 14:26:42 +0200
Subject: [PATCH] Add a health check to the docker image

See https://docs.docker.com/engine/reference/builder/#healthcheck
---
 Dockerfile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Dockerfile b/Dockerfile
index 0edbdb19..ad970576 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,4 +17,6 @@ ENV PIPELINE2_LOCAL=false \
     PIPELINE2_WS_AUTHENTICATION_KEY=clientid \
     PIPELINE2_WS_AUTHENTICATION_SECRET=sekret
 EXPOSE 8181
+# for the healthcheck use PIPELINE2_HOST if defined. Otherwise use localhost
+HEALTHCHECK --interval=30s --timeout=10s --start-period=1m CMD curl --fail http://${PIPELINE2_WS_HOST-localhost}:${PIPELINE2_WS_PORT:-8181}/${PIPELINE2_WS_PATH:-ws}/alive || exit 1
 ENTRYPOINT ["/opt/daisy-pipeline2/bin/pipeline2"]