initial commit

.github/workflows/container_build_and_push.yml

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+# https://docs.github.com/en/actions/publishing-packages/publishing-docker-images#publishing-images-to-docker-hub-and-github-packages
+name: Publish Container image
+
+on:
+  push:
+    tags:
+      - 'v*'
+    paths:
+      - '**Containerfile**'
+  workflow_dispatch:
+
+jobs:
+  push_to_registries:
+    name: Push Container image to multiple registries
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ${{ github.repository }}
+            ghcr.io/${{ github.repository }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: linux/amd64,linux/arm64,linux/arm/8,linux/arm/7,linux/arm/6
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
+
+      - name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v4
+        with:
+          platforms: linux/amd64,linux/arm64,linux/arm/8,linux/arm/7,linux/arm/6
+          context: .
+          file: Containerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+      - name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}

Containerfile

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+ARG ALPINE_VERSION=3.18
+
+FROM alpine:${ALPINE_VERSION} as build
+ARG MINIUPNPC_VERSION=2.2.4-r0
+RUN apk add --no-cache miniupnpc=${MINIUPNPC_VERSION}
+
+FROM scratch
+COPY --from=build /usr/bin/upnpc /bin/
+COPY --from=build /usr/lib/libminiupnpc.so.* /lib/ld-musl-*.so.1 /lib/
+
+ENTRYPOINT ["/bin/upnpc"]

README.md

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+# miniupnpc in a container
+
+## Tags
+
+- `latest`: latest upnpc binary on top of [scratch](https://hub.docker.com/_/scratch) image
+  - `v2.2.4-r0`: you can choose specific version of upnpc
+
+## Pull
+
+```bash
+podman pull docker.io/queeup/upnpc-container
+
+# OR
+
+podman pull ghcr.io/queeup/upnpc-container
+```
+
+## Use
+
+```bash
+podman run \
+    --rm \
+    --interactive \
+    --tty \
+    --network host \
+    upnpc-container --help
+```
+
+## Build
+
+```bash
+podman build -t upnpc-container --file Containerfile
+```
+
+[Containerfile is here](https://github.com/queeup/upnpc-container/blob/main/Containerfile)