Fix registry_auth logic for upgrades

Currently, the logic for registry authentication is
not implemented correctly to account for upgrades of
containerized hosts.

Additionally, the logic to account for multiple runs
of openshift-ansible might cause registry authentication
credentials to not be mounted inside of containerized hosts.

This commit adds the necessary logic to ensure containerized
hosts retain registry credentials.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1494470

3 files changed, 21 insertions, 13 deletions

diff --git a/roles/openshift_master/tasks/main.yml b/roles/openshift_master/tasks/main.yml
index 94b7df1fc..82b4b420c 100644
--- a/roles/openshift_master/tasks/main.yml
+++ b/roles/openshift_master/tasks/main.yml
@@ -177,8 +177,6 @@
     local_facts:
       no_proxy_etcd_host_ips: "{{ openshift_no_proxy_etcd_host_ips }}"
 
-- include: registry_auth.yml
-
 - name: Install the systemd units
   include: systemd_units.yml
 
diff --git a/roles/openshift_master/tasks/registry_auth.yml b/roles/openshift_master/tasks/registry_auth.yml
index 96b6c614e..2644f235e 100644
--- a/roles/openshift_master/tasks/registry_auth.yml
+++ b/roles/openshift_master/tasks/registry_auth.yml
@@ -1,27 +1,35 @@
 ---
+# We need to setup some variables as this play might be called directly
+# from outside of the role.
+- set_fact:
+    oreg_auth_credentials_path: "{{ r_openshift_master_data_dir }}/.docker"
+  when: oreg_auth_credentials_path is not defined
+
+- set_fact:
+    oreg_host: "{{ oreg_url.split('/')[0] if (oreg_url is defined and '.' in oreg_url.split('/')[0]) else '' }}"
+  when: oreg_host is not defined
+
 - name: Check for credentials file for registry auth
   stat:
     path: "{{ oreg_auth_credentials_path }}"
   when: oreg_auth_user is defined
   register: master_oreg_auth_credentials_stat
 
-# Container images may need the registry credentials
-- name: Setup ro mount of /root/.docker for containerized hosts
-  set_fact:
-    l_bind_docker_reg_auth: True
+- name: Create credentials for registry auth
+  command: "docker --config={{ oreg_auth_credentials_path }} login -u {{ oreg_auth_user }} -p {{ oreg_auth_password }} {{ oreg_host }}"
   when:
-  - openshift.common.is_containerized | bool
   - oreg_auth_user is defined
   - (not master_oreg_auth_credentials_stat.stat.exists or oreg_auth_credentials_replace) | bool
+  register: master_oreg_auth_credentials_create
   notify:
   - restart master api
   - restart master controllers
 
-- name: Create credentials for registry auth
-  command: "docker --config={{ oreg_auth_credentials_path }} login -u {{ oreg_auth_user }} -p {{ oreg_auth_password }} {{ oreg_host }}"
+# Container images may need the registry credentials
+- name: Setup ro mount of /root/.docker for containerized hosts
+  set_fact:
+    l_bind_docker_reg_auth: True
   when:
+  - openshift.common.is_containerized | bool
   - oreg_auth_user is defined
-  - (not master_oreg_auth_credentials_stat.stat.exists or oreg_auth_credentials_replace) | bool
-  notify:
-  - restart master api
-  - restart master controllers
+  - (master_oreg_auth_credentials_stat.stat.exists or oreg_auth_credentials_replace or master_oreg_auth_credentials_create.changed) | bool
diff --git a/roles/openshift_master/tasks/systemd_units.yml b/roles/openshift_master/tasks/systemd_units.yml
index 7a918c57e..8de62c59a 100644
--- a/roles/openshift_master/tasks/systemd_units.yml
+++ b/roles/openshift_master/tasks/systemd_units.yml
@@ -17,6 +17,8 @@
     r_openshift_master_data_dir: "{{ openshift_data_dir | default('/var/lib/origin') }}"
   when: r_openshift_master_data_dir is not defined
 
+- include: registry_auth.yml
+
 - name: Remove the legacy master service if it exists
   include: clean_systemd_units.yml