added automatic container updates every sunday so that openSSH stays …

…up to date

.github/workflows/autoupdate.yml

@@ -0,0 +1,62 @@
+name: CI for releases
+
+on:
+  schedule:
+    - cron: '0 0 * * 0' # every Sunday at midnight
+
+jobs:
+  build-and-push-docker-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    env:
+      IMAGE_NAME: "reversed-ssh-tunnel" # can't contain uppercases
+    steps:
+      -
+        name: Checkout repository
+        uses: actions/checkout@v3
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      -
+        name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      -
+        name: Login to DockerHub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Get latest tag
+        id: latest_tag
+        run: echo ::set-output name=tag::$(git describe --tags $(git rev-list --tags --max-count=1))
+      -
+        name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ghcr.io/${{ github.REPOSITORY_OWNER }}/${{ env.IMAGE_NAME }}
+            ${{ secrets.DOCKERHUB_USERNAME }}/${{ env.IMAGE_NAME }}
+          tags: |
+            ${{ steps.latest_tag.outputs.tag }}
+            latest
+      -
+        name: Build and push
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: linux/amd64,linux/arm64,linux/arm/v7,linux/arm/v6
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

.github/workflows/release.yml

@@ -44,6 +44,11 @@ jobs:
           tags: |
             type=ref,event=branch
             type=semver,pattern={{version}}
+            latest
+          labels: |
+            org.opencontainers.image.source=https://github.com/${{ github.repository }}
+            org.opencontainers.image.documentation=https://github.com/${{ github.repository }}/blob/${{ github.sha }}/README.md
+
       -
         name: Build and push
         uses: docker/build-push-action@v3

README.md

@@ -6,6 +6,16 @@ Create a lightweight Alpine Linux based SSH tunnel to a host.  Uses pure SSH, no
 
 FORKED FROM jujhars13/docker-ssh-tunnel but reversed the tunnel direction. 
 
+## Advantages
+
+ - Stay up to date (with weekly builds that ensure that OpenSSH is up to date)
+
+ - Lightweight
+
+ - Easy to use
+
+ - No need to install anything on the host or the client
+
 ## Required Parameters
 
 | Variable           | Description                                                   | default    |