Build tagged image with commit hash

.github/workflows/release.yml

@@ -53,7 +53,9 @@ jobs:
         uses: docker/metadata-action@v4
         with:
           images: libreofficedocker/alpine
-          tags: type=raw,value=${{ matrix.version }}
+          tags: |
+            type=raw,value=${{ matrix.version }}
+            type=sha,prefix=${{ matrix.version }}-
 
       - name: Build and push
         uses: docker/bake-action@v3

README.md

@@ -19,6 +19,13 @@ This image uses the [`alpine`](https://hub.docker.com/_/alpine) as base images.
 docker pull libreofficedocker/alpine:${ALPINE_VERSION}
 ```
 
+> [!NOTE]
+> The container images are being build and pushed to the registry periodically through an automated process. It schedules a build every week to ensure that the images are up-to-date with the latest security patches and updates.
+>
+> Runs at 00:00, only on Sunday every week.
+
+If you want to stick with a specific version, you can pull the image with the tag corresponding to a specific commit hash. Please check the [![Release](https://github.com/libreofficedocker/libreoffice-unoserver/actions/workflows/release.yml/badge.svg?branch=v2)](https://github.com/libreofficedocker/libreoffice-unoserver/actions/workflows/release.yml) workflow for the build and tags you want to use.
+
 ## License
 
 Licensed under [Apache-2.0 license](LICENSE)