Feature Request: Publish Helm charts to OCI registry

[michaelstingl]

Description

I'd like to propose adding OCI registry support for the Helm charts in this repository. This would allow users to install charts directly without needing to clone the repository, making deployment simpler and following modern Helm best practices.

Benefits

• Simplified installation process for users
• Better versioning and release management
• Improved security through registry verification
• Compatibility with modern Helm workflows (Helm 3.8.0+)
• Reduced dependency on Git for chart installation

Implementation options

Option 1: Woodpecker CI (if preferred for project consistency)

• Add Woodpecker CI pipeline steps to package and push charts
• Integrate with existing Woodpecker workflows
• Leverage existing CI infrastructure

Option 2: GitHub Actions

• Use GitHub's built-in container registry (GHCR)
• Simpler setup for GitHub-hosted repositories
• Native integration with GitHub's permissions model
• Can run alongside other CI systems if needed

Example user workflow

With this feature, users could install OpenCloud charts with:

# Main chart
helm install opencloud oci://ghcr.io/opencloud-eu/helm-charts/opencloud --version x.y.z

# Dev chart
helm install opencloud-dev oci://ghcr.io/opencloud-eu/helm-charts/opencloud-dev --version x.y.z

Documentation updates

• Add installation instructions for OCI-based workflow
• Maintain documentation for the Git-based workflow for backward compatibility
• Include version-specific installation examples

I believe this feature would significantly improve user experience while maintaining compatibility with existing workflows. Happy to contribute to the implementation using whichever CI system is preferred for this repository.

[suse-coder]

Please add an OCI image soon. I am fine with both, what is to realize faster.

[michaelstingl]

@micbar @tbsbdr @butonic thoughts?

[micbar]

I am fine with the idea and would prefer Option 2.

[michaelstingl]

Hi @micbar,

I've implemented the OCI registry support using GitHub Actions (Option 2) as you suggested. The pull request is now available at #43.

Key features implemented:

• GitHub Actions workflow to publish Helm charts to GHCR
• Support for both production and development charts
• Version tagging for releases
• Updated documentation with installation instructions from OCI registry
• Simplified installation process that doesn't require cloning the repository

I've tested this with the development chart and confirmed that it works well. Once merged, users will be able to install OpenCloud using commands like:

# Install Development Chart
helm install opencloud-dev oci://ghcr.io/opencloud-eu/helm-charts/opencloud-dev --version 0.1.0

Would appreciate your review when you have time. I can also help if there are any issues with the GitHub Action implementation.

Thanks!

[kastl-ars]

This can be closed as the PR was merged, right?

[michaelstingl]

Improvements for gh action here:

• Add release governance and version consistency checks #49