Trapping SIGTERM SIGINT to gracefully shutdown containers. Fixes #806

Author: diemol

Base/entry_point.sh

@@ -1,3 +1,15 @@
 #!/usr/bin/env bash
 
-/usr/bin/supervisord --configuration /etc/supervisord.conf
+/usr/bin/supervisord --configuration /etc/supervisord.conf &
+
+SUPERVISOR_PID=$!
+
+function shutdown {
+    echo "Trapped SIGTERM/SIGINT/x so shutting down supervisord..."
+    kill -s SIGTERM ${SUPERVISOR_PID}
+    wait ${SUPERVISOR_PID}
+    echo "Shutdown complete"
+}
+
+trap shutdown SIGTERM SIGINT
+wait ${SUPERVISOR_PID}