feat: basic part of podman provider

[pvoborni]

Add basic support for Podman.

So far supported:

rootless containers
Ansible via using "podman" connection in Inventory
ssh action via attaching to the container

TODO:

attach network the the containers
privileged containers
custom user mapping for provider as containers have different user than cloud images

I.e. test bench will be to install a FreeIPA server with couple replicas.

Commands usable for testing:

mrack -c $SOME_PATH/provisioning-config.yaml up -p podman $OTHER_PATH/simple_hosts.yaml mrack -c $SOME_PATH/provisioning-config.yaml destroy $OTHER_PATH/simple_hosts.yaml mrack -c $SOME_PATH/provisioning-config.yaml ssh $OTHER_PATH/simple_hosts.yaml mrack -c $SOME_PATH/provisioning-config.yaml list $OTHER_PATH/simple_hosts.yaml ansible -i mrack-inventory.yaml all -m shell -a "cat /etc/redhat-release"

Example enhancement of provisioning config:

podman: images: fedora-30: registry.fedoraproject.org/fedora:30 fedora-31: registry.fedoraproject.org/fedora:31 fedora-32: registry.fedoraproject.org/fedora:32 fedora-latest: registry.fedoraproject.org/fedora:latest fedora-rawhide: registry.fedoraproject.org/fedora:rawhide

Example metadata file:

domains:

• hosts:
  • group: ipaserver name: f30.mrack.test os: fedora-30 role: master
  • group: ipaserver name: f31.mrack.test os: fedora-31 role: master
  • group: ipaserver name: f32.mrack.test os: fedora-32 role: master
  • group: ipaserver name: rawhide.mrack.test os: fedora-rawhide role: master name: mrack.test type: test

[pvoborni]

/azp run

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s).

[pvoborni]

This was modified to a "mergable state". I'd not consider it as done or practically usable as there is no way to communicate between multiple provisioned containers but it is basis for next work.

[netoarmando]

I've rebased this to fix conflicts, I consider ok to merge to serve as "basis for next work".

[pvoborni]

So is this and approval for merge? Should I click the button? ;)