Revert "Remove the waiting for ironic-api to be accessible"

This reverts commit 8fc8689389.

It appears that it is still necessary to wait for ironic to be up, otherwise inspector may fail to start:

The baremetal service for 192.0.2.10:None exists but does not have any supported versions.

Change-Id: Ibc8314c91113618ce9e92b8933a63eba3cf3bbe1

ansible/roles/ironic/handlers/main.yml

@@ -30,6 +30,25 @@
   when:
     - kolla_action != "config"
 
+# Due to a bug in the ironic client, ironic inspector fails to start if ironic
+# API is not accessible. https://storyboard.openstack.org/#!/story/2006393
+# TODO(mgoddard): remove this task when
+# https://storyboard.openstack.org/#!/story/2006393 has been fixed.
+- name: Wait for ironic-api to be accessible
+  become: true
+  kolla_toolbox:
+    module_name: uri
+    module_args:
+      url: "{{ ironic_internal_endpoint }}"
+  register: result
+  until: result is success
+  retries: 12
+  delay: 5
+  listen: Restart ironic-api container
+  when:
+    - kolla_action != "config"
+  run_once: True
+
 - name: Restart ironic-inspector container
   vars:
     service_name: "ironic-inspector"