Publish chart on Dockerhub (#525)

As title.

Co-authored-by: techknowlogick <techknowlogick@noreply.gitea.com>
Co-authored-by: justusbunsi <justusbunsi@noreply.gitea.com>
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/525
Reviewed-by: justusbunsi <justusbunsi@noreply.gitea.com>

.gitea/workflows/release-version.yml

@@ -41,7 +41,7 @@ jobs:
       # Using helm gpg plugin as 'helm package --sign' has issues with gpg2: https://github.com/helm/helm/issues/2843
       - name: package chart
         run: |
-          echo ${{ secrets.DOCKER_PASSWORD }} | docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
+          echo ${{ secrets.DOCKER_CHARTS_PASSWORD }} | docker login -u ${{ secrets.DOCKER_CHARTS_USERNAME }} --password-stdin
           # FIXME: use upstream after https://github.com/technosophos/helm-gpg/issues/1 is solved
           helm plugin install https://github.com/pat-s/helm-gpg
           helm dependency update
@@ -51,6 +51,10 @@ jobs:
           mv gitea*.tgz gitea/
           curl -L -o gitea/index.yaml https://dl.gitea.com/charts/index.yaml
           helm repo index gitea/ --url https://dl.gitea.com/charts --merge gitea/index.yaml
+          # push to dockerhub
+          echo ${{ secrets.DOCKER_CHARTS_PASSWORD }} | helm registry login -u ${{ secrets.DOCKER_CHARTS_USERNAME }} registry-1.docker.io --password-stdin
+          helm push gitea-${GITHUB_REF#refs/tags/v}.tgz oci://registry-1.docker.io/giteacharts
+          helm registry logout registry-1.docker.io
 
       - name: aws credential configure
         uses: https://github.com/aws-actions/configure-aws-credentials@v2

README.md

@@ -95,6 +95,12 @@ helm repo update
 helm install gitea gitea-charts/gitea
 ```
 
+Alternatively, the chart can also be installed from Dockerhub (since v9.6.0)
+
+```sh
+helm install gitea oci://registry-1.docker.io/giteacharts/gitea
+```
+
 When upgrading, please refer to the [Upgrading](#upgrading) section at the bottom of this document for major and breaking changes.
 
 ## High Availability
@@ -1105,14 +1111,18 @@ gitea:
       CONN_STR: redis+cluster://:gitea@gitea-redis-cluster-headless.<namespace>.svc.cluster.local:6379/0?pool_size=100&idle_timeout=180s&
 ```
 
+<!-- prettier-ignore-start -->
 <!-- markdownlint-disable-next-line -->
 **Switch to rootless image by default**
+<!-- prettier-ignore-end -->
 
 If you are facing errors like `WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED` due to this automatic transition:
 Have a look at [this discussion](https://gitea.com/gitea/helm-chart/issues/487#issue-220660) and either set `image.rootless: false` or manually update your `~/.ssh/known_hosts` file(s).
 
+<!-- prettier-ignore-start -->
 <!-- markdownlint-disable-next-line -->
 **Transitioning from a RWO to RWX Persistent Volume**
+<!-- prettier-ignore-end -->
 
 If you want to switch to a RWX volume and go for HA, you need to
 
@@ -1120,8 +1130,10 @@ If you want to switch to a RWX volume and go for HA, you need to
 2. Let the chart create a new RWX PV (or do it statically yourself)
 3. Restore the backup to the same location in the new PV
 
+<!-- prettier-ignore-start -->
 <!-- markdownlint-disable-next-line -->
 **Transitioning from Postgres to Postgres HA**
+<!-- prettier-ignore-end -->
 
 If you are running with a non-HA PG DB from a previous chart release, you need to set
 
@@ -1130,8 +1142,10 @@ If you are running with a non-HA PG DB from a previous chart release, you need t
 
 This is needed to stay with your existing single-instance DB (as the HA-variant is the new default).
 
+<!-- prettier-ignore-start -->
 <!-- markdownlint-disable-next-line -->
 **Change of env-to-ini prefix**
+<!-- prettier-ignore-end -->
 
 Before this release, the env-to-ini prefix was `ENV_TO_INI__`.
 This allowed a clear distinction between user-provided and chart-provided env-to-ini variables.