Add EE support, support GHA in current_container_facts (#336)

* Try adding EE support.

* Use GHA instead of AZP for EE tests.

* Update changelog fragment, extend tests.

* Disable current_container_facts test.

* Increase verbosity.

* 2.9 compatibility.

* Use docker instead of podman for building EE and running tests in it.

* Output some more information (helpful for debugging).

* Fix GHA handling for current_container_facts.

* Try to fix permissions.

plugins/modules/current_container_facts.py

@@ -50,12 +50,15 @@ ansible_facts:
             description:
               - The detected container environment.
               - Contains an empty string if no container was detected.
-              - Otherwise, will be one of C(docker) or C(azure_pipelines).
+              - Otherwise, will be one of C(docker), C(azure_pipelines), or C(github_actions).
+              - C(github_actions) is supported since community.docker 2.4.0.
             returned: always
             type: str
-            # choices:
-            #   - docker
-            #   - azure_pipelines
+            choices:
+              - ''
+              - docker
+              - azure_pipelines
+              - github_actions
 '''
 
 import os
@@ -89,6 +92,10 @@ def main():
             container_id = cgroup_name
             container_type = 'azure_pipelines'
 
+        if cgroup_path == '/actions_job':
+            container_id = cgroup_name
+            container_type = 'github_actions'
+
     module.exit_json(ansible_facts=dict(
         ansible_module_running_in_container=container_id != '',
         ansible_module_container_id=container_id,