[feat] Implement editor agnostic kubeconfig injection

[JPinkney]

Signed-off-by: Josh Pinkney [email protected]

What does this PR do?

This PR implements editor agnostic kubeconfig injection for devworkspaces by calling a new endpoint /namespace/:namespace/devworkspaceId/:devworkspaceId/kubeconfig everytime a devworkspace is loaded. This new API injects the kubeconfig into all containers associated with a devworkspaceId.

What issues does this PR fix or reference?

eclipse-che/che#20782

Is it tested? How?

Ensure that Che is running with devworkspaces enabled then either create a new devworkspace from the dashboard itself or use https://gist.githubusercontent.com/JPinkney/d4f6e665d1239a5fc4caefbe20bf4f56/raw/96faebbd51b3bba209f8a8de8b448327f385c779/a.yaml with a factory url (that gist has vscode-kubernetes-tools and vscode-yaml pre-installed). Wait for the workspace to start and then observe that the kubeconfig is located at $HOME/.kube/config. If you are using the gist with vscode-kubernetes-tools then you can also observe that the kubeconfig is automatically loaded into vscode-kubernetes-tools when you open up the side panel.

Release Notes

Docs PR

[github-actions]

Docker image build succeeded: quay.io/eclipse/che-dashboard:pr-431

[JPinkney]

/test v8-dashboard-happy-path

[olexii4]

LGTM

[codecov]

Codecov Report

Merging #431 (13fc9cb) into main (1d2a9ad) will decrease coverage by 0.51%.
The diff coverage is 8.69%.

@@            Coverage Diff             @@
##             main     #431      +/-   ##
==========================================
- Coverage   50.80%   50.29%   -0.52%     
==========================================
  Files         216      219       +3     
  Lines        7434     7526      +92     
  Branches     1235     1249      +14     
==========================================
+ Hits         3777     3785       +8     
- Misses       3298     3382      +84     
  Partials      359      359              

Impacted Files	Coverage Δ
...ackages/dashboard-backend/src/api/kubeConfigAPI.ts	0.00% <0.00%> (ø)
...ontend/src/store/Workspaces/devWorkspaces/index.ts	8.57% <4.34%> (-0.44%)	⬇️
.../devworkspace-client/services/api/kubeConfigApi.ts	7.14% <7.14%> (ø)
...rvices/dashboard-backend-client/devWorkspaceApi.ts	65.85% <25.00%> (-4.42%)	⬇️
...src/devworkspace-client/services/helpers/stream.ts	28.57% <28.57%> (ø)
...dashboard-backend/src/devworkspace-client/index.ts	40.00% <33.33%> (-0.91%)	⬇️

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This pull-request has been approved by: akurinnoy, JPinkney, olexii4

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