From d6c63f1baa57df4d644ec51ce3088f82daf872e6 Mon Sep 17 00:00:00 2001
From: Emilien Macchi <emilien@redhat.com>
Date: Sun, 13 May 2018 21:09:05 -0700
Subject: [PATCH] Add validation for docker registry v2

Validate that Registry is actually up and running.
It's useful to fail early if the registry is for some reasons not
started correctly. It avoids to go further in the deployments steps and
loose time before seeing the failures when deploying containers.

Change-Id: Ic29d1c10741bf946c1df709d14b9b30dcf7f6c9b
---
 tasks/docker-distribution.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tasks/docker-distribution.yml b/tasks/docker-distribution.yml
index 2d1b687..800f14e 100644
--- a/tasks/docker-distribution.yml
+++ b/tasks/docker-distribution.yml
@@ -16,3 +16,9 @@
     enabled: true
     state: started
     name: docker-distribution
+
+- name: validate that registry is up
+  uri:
+    # Just checking API version should be fine
+    # https://docs.docker.com/registry/spec/api/#api-version-check
+    url: "http://{{ container_registry_host }}:{{ container_registry_port }}/v2/"