Improve CI (#528)

* Update CI scripts to be more close to the ones in ansible-core.

* Extend CI matrix.

* Make sure that docker daemon is running (when not in a container).

* Make sure that connection plugin tests do not uninstall Docker daemon.

* Check some conditions.

* Fix error ignores.

* Skip SSH test on Alpine VMs.

* Take care of more errors.

* Adjust for more errors.

* Improve conditions.

* Remove new entries from CI matrix; make CI matrix nicer.

tests/integration/targets/setup_docker/tasks/main.yml

@@ -43,6 +43,12 @@
           paths:
             - "{{ role_path }}/tasks"
 
+    - name: Make sure that docker is running
+      service:
+        name: docker
+        state: started
+      when: not ansible_module_running_in_container
+
     # Detect docker API version
     - name: Check Docker API version
       command: "docker version -f {% raw %}'{{(index .Server.Components 0).Details.ApiVersion}}'{% endraw %}"