Publish Helm chart to Artifact Hub

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#489 0 comments 0 reactions 0 assignees View on GitHub

@egezamb is already working on this.

Since Oct 9, 2026.

  • #504 by @egezamb — open

Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
68/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Active
Tech stack
github-actions, kubernetes

Research direction

Start with chart/Chart.yaml and chart/README.md, then inspect the helm-chart.yml workflow and Artifact Hub's Helm chart repository documentation. Add the specified metadata, register and claim the OCI repository, and verify the listing shows the expected images, Signed and Provenance badges, prerelease handling, and README link.

Written by the indexing model from the issue text.

Description

The chart is published to oci://ghcr.io/cryptomator/charts/cryptomator-hub (signed with cosign, SLSA provenance attached) but is not discoverable on Artifact Hub.

Tasks

  • Add the missing chart metadata to chart/Chart.yaml:
    • top-level maintainers
    • artifacthub.io/license: AGPL-3.0-only
    • artifacthub.io/images listing ghcr.io/cryptomator/hub, ghcr.io/cryptomator/keycloak and postgres (enables image scanning and shows the images in the listing)
    • artifacthub.io/links (docs, issue tracker, cryptomator.org/hub)
    • artifacthub.io/prerelease: "true" for -rc builds (set by the helm-chart.yml workflow so rc versions don't show as "latest")
    • optionally artifacthub.io/changes per release, if it can be generated from the release notes
  • Register the OCI repository on Artifact Hub (repository kind Helm charts, URL oci://ghcr.io/cryptomator/charts/cryptomator-hub) under a Cryptomator organization and claim ownership (artifacthub-repo.yml in the OCI repo, or the OCI metadata annotation route documented at https://artifacthub.io/docs/topics/repositories/helm-charts/)
  • Verify that the cosign signature and provenance attestation are detected ("Signed" / "Provenance" badges)
  • Link the Artifact Hub listing from chart/README.md

Notes

catalog.cattle.io/* annotations for Rancher are already in place; the Artifact Hub annotations complement them and are ignored by Helm and Rancher.

Dominant language
Java
Stars
87
Forks
22
Avg merge
3d 13h
Merged PRs (30d)
4

Getting set up

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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