Add integration test for ingress feature

[wood-push-melon]

We need to add some integration tests after the ingress integration feature is merged.

See #78

[syncronize-issues-to-jira]

Thank you for reporting us your feedback!

The internal ticket has been created: https://warthogs.atlassian.net/browse/IAM-1266.

This message was autogenerated

[NucciTheBoss]

@wood-push-melon what do you see these integration tests looking like? IIRC it's not very straightforward to deploy both a microk8s and LXD cloud within an action runner, so testing against SSSD might be difficult. We could just use a netcat scan to make sure that the ports are actually open on the load balancer.