Added zeo healthcheck

Author: odelaere

docker/docker-compose.yml

@@ -31,6 +31,8 @@ services:
       - internal
     labels:
       SERVICE_NAME: "zeo"
+    healthcheck:
+      test: "/plone/zeo_healthcheck.sh"
 #    restart:
 #      unless-stopped
   instance1:

docker/zeo_healthcheck.sh

@@ -0,0 +1,7 @@
+#! /bin/bash
+curl -fS --http0.9 zeo:9100
+if [[ $? == 0 || $? == 56 ]]; then
+  exit 0
+else
+  exit 1
+fi