Adding better healthcheck

healthcheck.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# This provides simple health checks for use in docker/k8s/etc.
+# Pass the task run by this container and it will exit non-zero if something is wrong
+# I.e. ./healthcheck.sh uber
+set -e
+
+# If no arguments are passed grab the current CMD from the entrypoint
+CMD="${1:-$(cat /proc/1/cmdline | strings -1 | tail -1)}"
+
+if [ "$CMD" = 'uber' ]; then
+    curl --fail http://$HOST:$PORT/uber/devtools/health
+elif [ "$CMD" = 'celery-beat' ]; then
+    # Beat seems to do a good job of dying when things go wrong.
+    # If you know a good way to test its health please put it here.
+    exit 0
+elif [ "$CMD" = 'celery-worker' ]; then
+    cd /app
+    /app/env/bin/celery --config celeryconf inspect ping -d celery@$(cat /etc/hostname)
+fi