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Switch to OIDC Federation Service instead of GitHub App#51

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8R0WNI3 wants to merge 1 commit intoopen-component-model:mainfrom
8R0WNI3:main
Open

Switch to OIDC Federation Service instead of GitHub App#51
8R0WNI3 wants to merge 1 commit intoopen-component-model:mainfrom
8R0WNI3:main

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@8R0WNI3
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@8R0WNI3 8R0WNI3 commented Feb 23, 2026

What this PR does / why we need it

Currently, the Gardener GitHub-Actions App is used to provide more privileged access than available via the default GITHUB_TOKEN, for example to circumvent branch protection rules (GitHub Apps can be configured as bypassers) or cross repository privileges. To prevent sharing the GitHub App secret with each and every repository/workflow which requires usage of it, the GitHub OIDC Federation Service has been developed. In essence, it holds the credentials for a central GitHub App and creates short-lived access tokens with a configured scope based on a centrally configured OIDC configuration. See related changes which have been necessary for this repository:

Which issue(s) this PR fixes

Currently, the [Gardener GitHub-Actions App](https://github.com/apps/gardener-github-actions)
is used to provide more privileged access than available via the default `GITHUB_TOKEN`, for
example to circumvent branch protection rules (GitHub Apps can be configured as bypassers) or
cross repository privileges. To prevent sharing the GitHub App secret with each and every
repository/workflow which requires usage of it, the
[GitHub OIDC Federation Service](https://github.com/gardener/github-oidc-federation) has been
developed. In essence, it holds the credentials for a central GitHub App and creates short-lived
access tokens with a configured scope based on a centrally configured OIDC configuration. See
related changes which have been necessary for this repository:

- open-component-model/.github-oidc#1

Signed-off-by: Jonas Brand (8R0WNI3) <j.brand@sap.com>
@8R0WNI3 8R0WNI3 requested a review from a team as a code owner February 23, 2026 13:11
@frewilhelm
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Is this repository private https://github.com/gardener/github-oidc-federation?

@8R0WNI3
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8R0WNI3 commented Feb 24, 2026

At the moment, yes, but we plan to make it public soonish :-)

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2 participants