[ws-manager] Retry controlPort on conflict

[csweichel]

Description

This PR makes the ControlPort operation in ws-manager retry on-conflict. Such edit conflicts can arise because ControlPort is not synchronised (i.e. multiple such operations can happen at the same time), and because of Kubernetes opportunistic concurrency model.

Note: this does not actually fix #7054. The status updates happen, but the ports view does not update. This PR clearly fixes a part of the problem, but not the entire issue.

Related Issue(s)

relates to #7054

How to test

1. Run gpctl workspaces subscribe
2. Start a workspace
3. Expose multiple services, change the port visibility from public to private and back

All port exposures should trigger a status update.

Release Notes

[ws-manager] Improve port exposure stability

[codecov]

Codecov Report

Merging #7079 (4cc1f93) into main (5bd176b) will increase coverage by 8.00%.
The diff coverage is 56.06%.

@@            Coverage Diff             @@
##             main    #7079      +/-   ##
==========================================
+ Coverage   32.62%   40.62%   +8.00%     
==========================================
  Files           6       13       +7     
  Lines        1128     3493    +2365     
==========================================
+ Hits          368     1419    +1051     
- Misses        724     1959    +1235     
- Partials       36      115      +79     

Flag	Coverage Δ
components-image-builder-mk3-app	?
components-local-app-app-darwin-amd64	?
components-local-app-app-darwin-arm64	?
components-local-app-app-linux-amd64	?
components-local-app-app-linux-arm64	?
components-local-app-app-windows-386	?
components-local-app-app-windows-amd64	?
components-local-app-app-windows-arm64	?
components-ws-manager-app	40.62% <56.06%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
components/ws-manager/pkg/manager/manager.go	23.71% <56.06%> (ø)
...ents/image-builder-mk3/pkg/orchestrator/metrics.go
...image-builder-mk3/pkg/orchestrator/orchestrator.go
components/local-app/pkg/auth/auth.go
components/local-app/pkg/auth/pkce.go
components/image-builder/pkg/resolve/resolve.go
...ents/image-builder-mk3/pkg/orchestrator/monitor.go
components/ws-manager/pkg/manager/probe.go	0.00% <0.00%> (ø)
components/ws-manager/pkg/manager/monitor.go	9.46% <0.00%> (ø)
components/ws-manager/pkg/manager/manager_ee.go	0.00% <0.00%> (ø)
... and 10 more

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[iQQBot]

LGTM

[roboquat]

LGTM label has been added.

Git tree hash: cec2f98d7a4d283e0e9dc89808df9fa1584267f1

[csweichel]

/approve no-issue

[roboquat]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: csweichel, iQQBot

Associated issue: #7054

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• components/ws-manager/OWNERS [csweichel]

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