Support using FQDN for hostname to support clustering nodes across networks with different subdomains

[howels]

/kind bug

What steps did you take and what happened:

Creating clusters across networks using designate causes issues as kubelet relies on os.Hostname() and CAPI does not provide an option for automated hostname-override to include the FQDN of each node.

What did you expect to happen:

CAPI should realise that Nodes are on disparate networks and use FQDN, or support an option allowing for FQDN to be overridden.

Anything else you would like to add:

This appears when using an Ironic network in combination with VMs from another network. All Ironic hosts have a single network segment but VMs inherit DNS subdomains from their project and network.

Realise that this might be supported but cannot see a hit when looking through the docs and API spec so far.

Environment:

• Cluster API Provider OpenStack version (Or git rev-parse HEAD if manually built):
• Cluster-API version:
• OpenStack version:
• Minikube/KIND version:
• Kubernetes version (use kubectl version):
• OS (e.g. from /etc/os-release):

[mnaser]

I don't think this would be a CAPO issue per say, I think this is something you need to override in CAPI side because that's mostly related to how the bootstrapping and joining process works, rather than how CAPO orchestrates the infrastructure.

[k8s-triage-robot]

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/lifecycle stale

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/lifecycle rotten

[k8s-triage-robot]

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/close not-planned

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Reopen this issue with /reopen
• Mark this issue as fresh with /remove-lifecycle rotten
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/close not-planned

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