docker_* tests: check API version (#48620)

* Check minimal API and docker-py versions for all docker_* tests.

* Improve docker_swarm creation/destruction for tests.

* Fail when conditions aren't met.

* Don't hardcode address for advertise_addr.

lib/ansible/modules/cloud/docker/docker_prune.py

@@ -220,7 +220,7 @@ def main():
 
     # Version checks
     cache_min_version = '3.3.0'
-    if client.module.params['builder_cache'] and LooseVersion(docker_version) < LooseVersion(cache_min_version):
+    if client.module.params['builder_cache'] and client.docker_py_version < LooseVersion(cache_min_version):
         msg = "Error: docker version is %s. Minimum version required for builds option is %s. Use `pip install --upgrade docker` to upgrade."
         client.module.fail(msg=(msg % (docker_version, cache_min_version)))
 

test/integration/targets/docker_config/tasks/main.yml

@@ -1,3 +1,7 @@
 ---
 - include_tasks: test_docker_config.yml
-  when: docker_api_version is version('1.30', '>=')
+  # Maximum of 1.30 (docker API version for docker_config) and 1.35 (docker API version for docker_swarm) is 1.35
+  when: docker_py_version is version('2.6.0', '>=') and docker_api_version is version('1.35', '>=')
+
+- fail: msg="Too old docker / docker-py version to run docker_config tests!"
+  when: not(docker_py_version is version('2.6.0', '>=') and docker_api_version is version('1.35', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

test/integration/targets/docker_config/tasks/test_docker_config.yml

@@ -1,4 +1,5 @@
 ---
+- block:
   - name: Make sure we're not already using Docker swarm
     docker_swarm:
       state: absent
@@ -108,6 +109,7 @@
       that:
         - not output.changed
 
+  always:
   - name: Remove a Swarm cluster
     docker_swarm:
       state: absent

test/integration/targets/docker_container/tasks/main.yml

@@ -33,3 +33,6 @@
     diff: no
 
   when: docker_py_version is version('1.8.0', '>=') and docker_api_version is version('1.20', '>=')
+
+- fail: msg="Too old docker / docker-py version to run all docker_container tests!"
+  when: not(docker_py_version is version('3.5.0', '>=') and docker_api_version is version('1.25', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

test/integration/targets/docker_container_facts/tasks/main.yml

@@ -58,5 +58,7 @@
       - "result.docker_container"
       - "result.docker_container == docker_inspect_result[0]"
 
-  # Skip for CentOS 6
-  when: ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6
+  when: docker_py_version is version('1.8.0', '>=') and docker_api_version is version('1.20', '>=')
+
+- fail: msg="Too old docker / docker-py version to run docker_container_facts tests!"
+  when: not(docker_py_version is version('1.8.0', '>=') and docker_api_version is version('1.20', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

test/integration/targets/docker_image/tasks/main.yml

@@ -47,5 +47,7 @@
       force_kill: yes
     with_items: "{{ cnames }}"
 
-  # Skip for CentOS 6
-  when: ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6
+  when: docker_py_version is version('1.8.0', '>=') and docker_api_version is version('1.20', '>=')
+
+- fail: msg="Too old docker / docker-py version to run docker_image tests!"
+  when: not(docker_py_version is version('1.8.0', '>=') and docker_api_version is version('1.20', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

test/integration/targets/docker_image_facts/tasks/main.yml

@@ -48,5 +48,7 @@
       - "'hello-world:latest' in result.images[0].RepoTags"
       - "'alpine:3.8' in result.images[1].RepoTags"
 
-  # Skip for CentOS 6
-  when: ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6
+  when: docker_py_version is version('1.8.0', '>=') and docker_api_version is version('1.20', '>=')
+
+- fail: msg="Too old docker / docker-py version to run docker_image_facts tests!"
+  when: not(docker_py_version is version('1.8.0', '>=') and docker_api_version is version('1.20', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

test/integration/targets/docker_network/tasks/main.yml

@@ -27,5 +27,7 @@
       force: yes
     loop: "{{ dnetworks }}"
 
-  # Skip for CentOS 6
-  when: ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6
+  when: docker_py_version is version('1.10.0', '>=') and docker_api_version is version('1.20', '>=')  # FIXME: find out API version!
+
+- fail: msg="Too old docker / docker-py version to run docker_network tests!"
+  when: not(docker_py_version is version('1.10.0', '>=') and docker_api_version is version('1.20', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

test/integration/targets/docker_network/tasks/tests/overlay.yml

@@ -10,11 +10,12 @@
 ## overlay #########################################################
 ####################################################################
 
+- block:
   # Overlay networks require swarm initialization before they'll work
   - name: swarm
     docker_swarm:
       state: present
-    advertise_addr: 192.168.1.1
+      advertise_addr: "{{ansible_default_ipv4.address}}"
 
   - name: overlay
     docker_network:
@@ -44,13 +45,17 @@
       state: absent
       force: yes
 
-- name: cleanup swarm
-  docker_swarm:
-    state: absent
-    force: yes
-
   - assert:
       that:
       - overlay_1 is changed
       - overlay_2 is not changed
       - overlay_3 is changed
+
+  always:
+  - name: cleanup swarm
+    docker_swarm:
+      state: absent
+      force: yes
+
+  # Requirements for docker_swarm
+  when: docker_py_version is version('2.6.0', '>=') and docker_api_version is version('1.35', '>=')

test/integration/targets/docker_prune/tasks/main.yml

@@ -27,7 +27,7 @@
       images: yes
       networks: yes
       volumes: yes
-      builder_cache: yes
+      builder_cache: "{{ docker_py_version is version('3.3.0', '>=') }}"
     register: result
 
   # Analyze result
@@ -56,5 +56,7 @@
 
   - debug: var=result
 
-  # Skip for CentOS 6
-  when: ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6
+  when: docker_py_version is version('2.1.0', '>=') and docker_api_version is version('1.25', '>=')
+
+- fail: msg="Too old docker / docker-py version to run docker_prune tests!"
+  when: not(docker_py_version is version('2.1.0', '>=') and docker_api_version is version('1.25', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

test/integration/targets/docker_secret/handlers/main.yml

@@ -1,3 +0,0 @@
-- name: disable_swarm 
-  command: docker swarm leave --force
-  ignore_errors: yes

test/integration/targets/docker_secret/tasks/main.yml

@@ -1,2 +1,7 @@
 - include_tasks: test_secrets.yml
-  when: ansible_os_family != 'RedHat' or ansible_distribution_major_version != '6'
+  # Maximum of 2.1.0 (docker-py version for docker_secrets) and 2.6.0 (docker-py version for docker_swarm) is 2.6.0
+  # Maximum of 1.25 (docker API version for docker_secrets) and 1.35 (docker API version for docker_swarm) is 1.35
+  when: docker_py_version is version('2.6.0', '>=') and docker_api_version is version('1.35', '>=')
+
+- fail: msg="Too old docker / docker-py version to run docker_secrets tests!"
+  when: not(docker_py_version is version('2.6.0', '>=') and docker_api_version is version('1.35', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

test/integration/targets/docker_secret/tasks/test_secrets.yml

@@ -1,12 +1,14 @@
-- name: Check if already in swarm
-  shell: docker node ls 2>&1 | grep 'docker swarm init'
-  register: output
-  ignore_errors: yes 
+---
+- block:
+  - name: Make sure we're not already using Docker swarm
+    docker_swarm:
+      state: absent
+      force: true
 
-- name: Enable swarm mode
-  command: docker swarm init
-  when: output.rc == 0
-  notify: disable_swarm 
+  - name: Create a Swarm cluster
+    docker_swarm:
+      state: present
+      advertise_addr: "{{ansible_default_ipv4.address}}"
 
   - name: Parameter name should be required
     docker_secret:
@@ -95,3 +97,9 @@
     assert:
       that:
         - output.failed
+
+  always:
+  - name: Remove Swarm cluster
+    docker_swarm:
+      state: absent
+      force: true

test/integration/targets/docker_stack/tasks/main.yml

@@ -1,4 +1,5 @@
 - include_tasks: test_stack.yml
-  when:
-  - ansible_os_family != 'RedHat' or ansible_distribution_major_version != '6'
-  - ansible_distribution != 'Fedora' or ansible_distribution_major_version|int >= 26
+  when: docker_api_version is version('1.25', '>=')
+
+- fail: msg="Too old docker / docker-py version to run docker_stack tests!"
+  when: not(docker_api_version is version('1.25', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

test/integration/targets/docker_stack/tasks/test_stack.yml

@@ -1,3 +1,5 @@
+---
+- block:
   - name: Make sure we're not already using Docker swarm
     docker_swarm:
       state: absent
@@ -104,6 +106,7 @@
       that:
       - output is not changed
 
+  always:
   - name: Remove a Swarm cluster
     docker_swarm:
       state: absent

test/integration/targets/docker_swarm/tasks/main.yml

@@ -1,2 +1,5 @@
 - include_tasks: test_swarm.yml
-  when: ansible_os_family != 'RedHat' or ansible_distribution_major_version != '6'
+  when: docker_py_version is version('2.6.0', '>=') and docker_api_version is version('1.35', '>=')
+
+- fail: msg="Too old docker / docker-py version to run docker_swarm tests!"
+  when: not(docker_py_version is version('2.6.0', '>=') and docker_api_version is version('1.35', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

test/integration/targets/docker_swarm/tasks/test_swarm.yml

@@ -1,3 +1,5 @@
+---
+- block:
   - name: Make sure we're not already using Docker swarm
     docker_swarm:
       state: absent
@@ -51,3 +53,9 @@
       that:
          - 'output.changed'
          - 'output.actions[0] == "Node has leaved the swarm cluster"'
+
+  always:
+  - name: Cleanup
+    docker_swarm:
+      state: absent
+      force: true

test/integration/targets/docker_swarm_service/tasks/main.yml

@@ -1,4 +1,6 @@
 - include_tasks: test_swarm_service.yml
-  when:
-  - ansible_os_family != 'RedHat' or ansible_distribution_major_version != '6'
-  - ansible_distribution != 'Fedora' or ansible_distribution_major_version|int >= 26
+  # Maximum of 2.0.0 (docker-py version for docker_swarm_service) and 2.6.0 (docker-py version for docker_swarm) is 2.6.0
+  when: docker_py_version is version('2.6.0', '>=') and docker_api_version is version('1.35', '>=')
+
+- fail: msg="Too old docker / docker-py version to run docker_swarm_service tests!"
+  when: not(docker_py_version is version('2.6.0', '>=') and docker_api_version is version('1.35', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)

test/integration/targets/docker_swarm_service/tasks/test_swarm_service.yml

@@ -1,3 +1,5 @@
+---
+- block:
   - name: Create a Swarm cluster
     docker_swarm:
       state: present
@@ -116,6 +118,7 @@
       state: present
       advertise_addr: "{{ansible_default_ipv4.address}}"
 
+  always:
   - name: Clean the docker daemon status
     docker_swarm:
       state: absent

test/integration/targets/docker_volume/tasks/main.yml

@@ -20,5 +20,7 @@
       force: yes
     with_items: "{{ vnames }}"
 
-  # Skip for CentOS 6
-  when: ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6
+  when: docker_py_version is version('1.10.0', '>=') and docker_api_version is version('1.20', '>=')  # FIXME: find out API version!
+
+- fail: msg="Too old docker / docker-py version to run docker_volume tests!"
+  when: not(docker_py_version is version('1.10.0', '>=') and docker_api_version is version('1.20', '>=')) and (ansible_distribution != 'CentOS' or ansible_distribution_major_version|int > 6)