ci(helm): sign published charts with keyless cosign#359
Merged
Conversation
Adds OIDC id-token, cosign install/login, and sign-by-digest after each helm push — earns the ArtifactHub Signed badge.
deven96
approved these changes
Jul 4, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Adds keyless cosign signing to
charts-release.ymlso published charts earn the ArtifactHub Signed badge.permissions: id-token: write— GitHub OIDC for keyless signing (no keys to manage).sigstore/cosign-installer+cosign login ghcr.io.helm push, capture the digest andcosign sign --yes <chart>@<digest>.Signatures are stored in the same public ghcr package, so ArtifactHub detects them automatically.
Validated: YAML parses, embedded shell passes
bash -n. Takes effect on the next chart publish (i.e. the nextcharts/*version bump or a manualworkflow_dispatch) — existing 0.1.1 artifacts stay unsigned until then.