Publish helm chart using github pages

[hemstreet]

What kind of change does this PR introduce?

This change enables you to install this chart from terraform. All it require is a new branch named gh-pages. Currently the index.yaml inside the root of this project has invalid urls and is confusing to setup.

This solves the manual process of creating releases and will produce the output like so. All on a new tag creation, it will use the chart version vs the actual tag number.

With this change, it would then let you install this chart like so:

resource "helm_release" "suspabase" {
  name       = "supabase"
  repository = "https://github.com/supabase-community/supabase-kubernetes"
  chart      = "supabase"
  version    = "0.1.3"

  namespace        = "supabase"
  create_namespace = true
  ...
}

You will still need to set values, etc.

Bug fix, feature, docs update, ...

What is the current behavior?

When running helm install via terraform, You can try to use the raw content url but the tar.gz urls are invalid

https://raw.githubusercontent.com/supabase-community/supabase-kubernetes/refs/heads/main/index.yaml

Please link any relevant issues here.
#76

Fixes this draft from April https://github.com/supabase-community/supabase-kubernetes/pull/55/files

What is the new behavior?

uses github pages to host the helm charts

Feel free to include screenshots if it includes visual changes.

Additional context

Add any other context or screenshots.

[hemstreet]

@mdluo i there anything pending on this? I saw you approved of it last week. I don't have merge access, Just trying to help push this over the finish line / be diligent about anything that is pending.

[jonathanmccracken]

+1 here - having this helm chart available on github pages would help a lot

[hemstreet]

@jonathanmccracken unfortunately this project might be abandoned. Not sure what else I can do to get this merged other than wait for someone to approve.

@mdluo any chance this can get merged? Or is there someone else that may be able to / review this?

@arpagon maybe? I see you approved / merged the last PR

[arpagon]

Just let me take a look this morning, and I'll merge it.

[mdluo]

@jonathanmccracken unfortunately this project might be abandoned. Not sure what else I can do to get this merged other than wait for someone to approve.

@mdluo any chance this can get merged? Or is there someone else that may be able to / review this?

@arpagon maybe? I see you approved / merged the last PR

Unfortunately I'm not a member of this project and unable to merge it, but for some reason was able to review it.

But I forked this repo too: https://github.com/voltade/supabase-kubernetes, and did a few minor improvements:

• Use Helm recommended helm/chart-releaser-action instead of stefanprodan/helm-gh-pages to publish the pages: voltade@ec7cdcc
• Allow configuring initContainers init-db image with db.initContainerImage values, so we can use smaller image like alpine/psql
  : voltade@a200bef
• Upgrade image tags to the latest according to the supabase's compose file: voltade@99044d9

Chart metadata file: https://voltade.github.io/supabase-kubernetes/index.yaml, feel free to try it out

[arpagon]

Great work, @mdluo!
If you create the PR for this repo https://github.com/voltade/supabase-kubernetes,

I'd be happy to merge it. 🚀