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_sdk_for_python/aliases

@@ -0,0 +1,5 @@
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+needs/target/setup_epel

tests/integration/targets/setup_docker_sdk_for_python/defaults/main.yml

@@ -0,0 +1,10 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+docker_py_version: '0.0'
+
+docker_pip_extra_packages: []
+docker_pip_package: docker
+docker_pip_package_limit: ''

tests/integration/targets/setup_docker_sdk_for_python/meta/main.yml

@@ -0,0 +1,8 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+dependencies:
+  - setup_remote_constraints
+  - setup_pkg_mgr

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

@@ -0,0 +1,47 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+####################################################################
+# WARNING: These are designed specifically for Ansible tests       #
+# and should not be used as examples of how to write Ansible roles #
+####################################################################
+
+- name: Setup Docker SDK for Python
+  when: ansible_facts.distribution ~ ansible_facts.distribution_major_version not in  ['CentOS6', 'RedHat6']
+  block:
+    - name: Include distribution specific variables
+      include_vars: "{{ lookup('first_found', params) }}"
+      vars:
+        params:
+          files:
+            - "{{ ansible_facts.distribution }}-{{ ansible_facts.distribution_major_version }}.yml"
+            - "{{ ansible_facts.os_family }}-{{ ansible_facts.distribution_major_version }}.yml"
+            - "{{ ansible_facts.distribution }}.yml"
+            - "{{ ansible_facts.os_family }}.yml"
+            - default.yml
+          paths:
+            - "{{ role_path }}/vars"
+
+    - name: Limit docker pypi package version to < 4.3.0
+      set_fact:
+        docker_pip_package_limit: '<4.3.0'
+      when: docker_api_version 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' }}"
+
+    - 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_py_version: "{{ docker_py_version_stdout.stdout | default('0.0') }}"
+
+    - debug:
+        msg: "Docker SDK for Python version: {{ docker_py_version }}"

tests/integration/targets/setup_docker_sdk_for_python/vars/RedHat-7.yml

@@ -0,0 +1,8 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+docker_pip_extra_packages:
+  # Not sure why RHEL7 needs this specific version
+  - requests==2.6.0

tests/integration/targets/setup_docker_sdk_for_python/vars/Ubuntu-14.yml

@@ -0,0 +1,9 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+docker_pip_extra_packages:
+  # Installing requests >=2.12.0 on Ubuntu 14.04 breaks certificate validation. We restrict to an older version
+  # to ensure out get_url tests work out fine. This is only an issue if pyOpenSSL is also installed.
+  - requests==2.6.0

tests/integration/targets/setup_docker_sdk_for_python/vars/default.yml

@@ -0,0 +1,4 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later