Consider better use of ProjectedVolumes

[jlpettersson]

Feature request

ProjectedVolumes is very useful, both for Secrets, ConfigMaps and modern ServiceAccounts. The way Tekton currently supports ServiceAccounts should be considered outdated - since the tokens are not rotated and less secure than the new solution, Service Account Token Volume Projection using ProjectedVolumes.

Use case

At least ServiceAccounts should preferrably be used from a ProjectedVolume. Currently this is a bit clumsy - through the taskRunSpecs. We could consider a better API - potentially via Workspaces?

Also see No More Forever Tokens: Changes in Identity Management for Kubernetes.
Some of these APIs will be upgraded (possibly to GA?) in v1.20

[tekton-robot]

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[ghost]

/remove-lifecycle stale

[tekton-robot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale with a justification.
Stale issues rot after an additional 30d of inactivity and eventually close.
If this issue is safe to close now please do so with /close with a justification.
If this issue should be exempted, mark the issue as frozen with /lifecycle frozen with a justification.

/lifecycle stale

Send feedback to tektoncd/plumbing.

[tekton-robot]

Stale issues rot after 30d of inactivity.
Mark the issue as fresh with /remove-lifecycle rotten with a justification.
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/lifecycle rotten

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[jerop]

/remove-lifecycle rotten

in v1 planning - #3548

[tekton-robot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale with a justification.
Stale issues rot after an additional 30d of inactivity and eventually close.
If this issue is safe to close now please do so with /close with a justification.
If this issue should be exempted, mark the issue as frozen with /lifecycle frozen with a justification.

/lifecycle stale

Send feedback to tektoncd/plumbing.

[tekton-robot]

Stale issues rot after 30d of inactivity.
Mark the issue as fresh with /remove-lifecycle rotten with a justification.
Rotten issues close after an additional 30d of inactivity.
If this issue is safe to close now please do so with /close with a justification.
If this issue should be exempted, mark the issue as frozen with /lifecycle frozen with a justification.

/lifecycle rotten

Send feedback to tektoncd/plumbing.

[vdemeester]

/lifecycle frozen
(as it's part of v1 planning)