* Remove support for Ansible 2.9 and ansible-base 2.10.
* Remove Ansible 2.9 compatiblity code.
* Remove docker-compose from EE.
* Drop support for Python 2.6. Stop advertising docker-py for Python 2.6.
* Drop support for API versions 1.20 to 1.24.
* Fix condition.
* 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.
* Run some tests with the latest PyPi version of Docker SDK for Python.
* Use new enough Python so we can actually install the latest Docker SDK for Python.
* Ansibilize
* Fix test.
* Fix two stupid errors by myself.
* Update CI matrix to include ansible-core's stable-2.12 branch.
* Adjust README.
* Fix stage names.
* Make matrix for older Ansible versions a bit thinner.
* Remove PATH hack
azure-pipelines-test-container:1.7.1 contains a proper fix for ensuring
PATH contains the location of pip installed binaries so we can remove
the hack.
* Correct RHEL groups