backup: add action.yml skeleton

.gitea/workflows/build.yml

@@ -18,7 +18,7 @@ jobs:
         - /var/run/docker.sock:/var/run/docker.sock
     steps:
       - uses: actions/checkout@v7
-      - uses: docker/login-action@v4
+      - uses: docker/login-action@v3
         with:
           registry: git.studiovita.li
           username: ${{ secrets.REGISTRY_USERNAME }}

README.md

@@ -1,31 +0,0 @@
-# studiovitali/actions
-
-Shared Gitea Actions for studio CI workflows.
-
-## Composite actions
-
-- **[`sops`](sops/)** — install checksum-verified SOPS and decrypt `*.sops.*` files with an age key
-- **[`ssh-copy`](ssh-copy/)** — `rsync` a local directory to a remote host over SSH
-- **[`ssh-run`](ssh-run/)** — run a script on a remote host over SSH
-
-Reference a local action from a workflow:
-
-```yaml
-- uses: studio/actions/ssh-run@main
-  with:
-    host: ${{ secrets.HOST }}
-    user: deploy
-    key: ${{ secrets.SSH_KEY }}
-    script: ./deploy.sh
-```
-
-## Runner image
-
-`images/act` builds `git.studiovita.li/studio/actions:ubuntu-latest` from the Gitea
-runner image, adding `rsync` and SOPS. Built weekly and on `images/**` changes via
-[`.gitea/workflows/build.yml`](.gitea/workflows/build.yml).
-
-## Maintenance
-
-Dependencies pinned in `action.yml` / `Dockerfile` are updated by [Renovate](renovate.json)
-using `## renovate:` annotations.

backup/action.yml

@@ -0,0 +1,13 @@
+name: backup
+description: backup all postgres databases
+
+runs:
+  using: "composite"
+  steps:
+    - name: dump databases
+      shell: bash
+      run: |
+        docker ps
+
+    # - name: backup databases
+    #   run: |