Add RHEL 9.0, Ubuntu 22.04 and Fedora 36 to CI (#358)

* Add RHEL 9.0 to CI.

* Add RHEL 9 specific files.

* Add Ubuntu 22.04 and Fedora 36 to CI.

* Another try.

* Adjust kernel memory tests.

* Add more details.

* RHEL 9 doesn't support setting memory swappiness.

* Fix docker_swarm_service tests.

The 'less' case should always have been changed, but it probably was always skipped
due to a too old Docker SDK for Python or a too old Docker daemon.

* More checks / improve checks.

tests/integration/targets/setup_docker/tasks/RedHat-9.yml

@@ -0,0 +1,35 @@
+---
+# The RHEL extras repository must be enabled to provide the container-selinux package.
+# See: https://docs.docker.com/engine/installation/linux/docker-ee/rhel/#install-using-the-repository
+
+- name: Install Docker pre-reqs
+  dnf:
+    name: "{{ docker_prereq_packages }}"
+    state: present
+  notify: cleanup docker
+  register: result
+  until: result is success
+  retries: 10
+  delay: 2
+
+# Docker broke their .repo file, so we set it up ourselves
+- name: Set-up repository
+  yum_repository:
+    name: docker-ce
+    description: docker-ce
+    baseurl: https://download.docker.com/linux/centos/{{ ansible_facts.distribution_major_version }}/$basearch/stable
+    gpgcheck: true
+    gpgkey: https://download.docker.com/linux/centos/gpg
+
+- name: Install docker
+  dnf:
+    name: "{{ docker_packages if needs_docker_daemon else docker_cli_packages }}"
+    state: present
+  notify: cleanup docker
+
+- name: Make sure the docker daemon is running (failure expected inside docker container)
+  service:
+    name: docker
+    state: started
+  ignore_errors: "{{ ansible_virtualization_type in ['docker', 'container', 'containerd'] }}"
+  when: needs_docker_daemon

tests/integration/targets/setup_docker/vars/RedHat-9.yml

@@ -0,0 +1,13 @@
+---
+docker_prereq_packages:
+  - yum-utils
+  - device-mapper-persistent-data
+  - lvm2
+  - libseccomp
+  - iptables
+
+docker_packages:
+  - docker-ce # -19.03.13
+  - docker-ce-cli # -19.03.13
+docker_cli_packages:
+  - docker-ce-cli # -19.03.13