Integration tests: split up Docker setup, move docker_compose tests into own group (#718)

* Rename setup role.

* Create new CI group 6, and move docker_compose v1 tests into there.

* Split up Docker setup in integration tests.

* Change setup_docker_compose_v1 to install its own Docker SDK for Python.

* Docker SDK for Python not needed to set up registry or query host info.

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

@@ -68,36 +68,18 @@
       register: docker_api_version_stdout
       ignore_errors: true
 
-    - name: Limit docker pypi package version to < 4.3.0
-      set_fact:
-        docker_pip_package_limit: '<4.3.0'
-      when: (docker_api_version_stdout.stdout | default('0.0')) is version('1.39', '<')
-
-    - name: Install/upgrade Python requirements
-      pip:
-        name: "{{ [docker_pip_package ~ docker_pip_package_limit] + docker_pip_extra_packages }}"
-        extra_args: "-c {{ remote_constraints }}"
-        state: "{{ 'latest' if force_docker_sdk_for_python_pypi | default(false) else 'present' }}"
-      notify: cleanup docker
-
     # Detect docker CLI and docker-py versions
     - name: Check Docker CLI version
       command: "docker version -f {% raw %}'{{.Client.Version}}'{% endraw %}"
       register: docker_cli_version_stdout
       ignore_errors: true
 
-    - name: Check docker-py version
-      command: "{{ ansible_python.executable }} -c 'import docker; print(docker.__version__)'"
-      register: docker_py_version_stdout
-      ignore_errors: true
-
     - set_fact:
         docker_cli_version: "{{ docker_cli_version_stdout.stdout | default('0.0') }}"
         docker_api_version: "{{ docker_api_version_stdout.stdout | default('0.0') }}"
-        docker_py_version: "{{ docker_py_version_stdout.stdout | default('0.0') }}"
 
     - debug:
-        msg: "Docker CLI version: {{ docker_cli_version }}; Docker API version: {{ docker_api_version }}; docker-py library version: {{ docker_py_version }}"
+        msg: "Docker CLI version: {{ docker_cli_version }}; Docker API version: {{ docker_api_version }}"
 
     - block:
       # Cleanup docker daemon
@@ -162,13 +144,3 @@
             images: "{{ docker_images.stdout_lines | default([]) }}"
 
       when: docker_cli_version is version('0.0', '>')
-
-    - name: Inspect current container
-      docker_container_info:
-        name: "{{ ansible_module_container_id }}"
-      register: current_container_info
-      when: ansible_module_running_in_container
-
-    - name: Determine network name
-      set_fact:
-        current_container_network_ip: "{{ (current_container_info.container.NetworkSettings.Networks | dictsort)[0].0 | default('') if ansible_module_running_in_container else '' }}"