docker_login: fix internal config file storage to handle credentials for more than one registry (#1118)

* docker_login: fix internal config file storage to handle credentials for more than one registry

* Improve setup for docker registry.

* Add second registry frontend. Add tests for #1118.

* Fix cleanup.

tests/integration/targets/setup_docker_registry/handlers/cleanup.yml

@@ -1,10 +1,11 @@
+---
 - name: "Make sure all images are removed"
   docker_image:
     name: "{{ item }}"
     state: absent
-  with_items: "{{ inames }}"
+  with_items: "{{ docker_registry_setup_inames }}"
 - name: "Get registry logs"
-  command: "docker logs {{ registry_name }}"
+  command: "docker logs {{ docker_registry_container_name_registry }}"
   register: registry_logs
   no_log: yes
   ignore_errors: yes
@@ -12,26 +13,35 @@
   debug:
     var: registry_logs.stdout_lines
   when: registry_logs is not failed
-- name: "Get nginx logs"
-  command: "docker logs {{ nginx_name }}"
+- name: "Get nginx logs for first instance"
+  command: "docker logs {{ docker_registry_container_name_nginx }}"
   register: nginx_logs
   no_log: yes
   ignore_errors: yes
-- name: "Printing nginx logs"
+- name: "Get nginx logs for second instance"
+  command: "docker logs {{ docker_registry_container_name_nginx2 }}"
+  register: nginx2_logs
+  no_log: yes
+  ignore_errors: yes
+- name: "Printing nginx logs for first instance"
   debug:
     var: nginx_logs.stdout_lines
   when: nginx_logs is not failed
+- name: "Printing nginx logs for second instance"
+  debug:
+    var: nginx2_logs.stdout_lines
+  when: nginx_logs is not failed
 - name: "Make sure all containers are removed"
   docker_container:
     name: "{{ item }}"
     state: absent
     force_kill: yes
-  with_items: "{{ cnames }}"
+  with_items: "{{ docker_registry_setup_cnames }}"
   register: result
   retries: 3
   delay: 3
   until: result is success
 - name: "Make sure all volumes are removed"
   command: "docker rm -f {{ item }}"
-  with_items: "{{ vnames }}"
+  with_items: "{{ docker_registry_setup_vnames }}"
   ignore_errors: yes

tests/integration/targets/setup_docker_registry/handlers/main.yml

@@ -1,2 +1,3 @@
+---
 - name: Remove test registry
   include_tasks: ../handlers/cleanup.yml