From e95ae25746a786fd8ece9d71412979dc4f432add Mon Sep 17 00:00:00 2001
From: timo <timo.nogueira.brockmeyer@posteo.net>
Date: Thu, 5 Dec 2024 19:05:20 +0100
Subject: [PATCH] automatically build a docker container image for the room hub

---
 .github/workflows/docker.yml | 36 ++++++++++++++++++++++++++++++++++++
 room-hub/Dockerfile          | 20 ++++++++++++++++++++
 2 files changed, 56 insertions(+)
 create mode 100644 .github/workflows/docker.yml
 create mode 100644 room-hub/Dockerfile

diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
new file mode 100644
index 0000000..a3ff24d
--- /dev/null
+++ b/.github/workflows/docker.yml
@@ -0,0 +1,36 @@
+name: Publish Docker image
+
+on:
+  push:
+
+jobs:
+  push_to_registries:
+    name: Push Docker image to multiple registries
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository }}
+
+      - name: Build and push Docker images
+        uses: docker/build-push-action@v5
+        with:
+          context: ./room-hub/
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
diff --git a/room-hub/Dockerfile b/room-hub/Dockerfile
new file mode 100644
index 0000000..9f368ae
--- /dev/null
+++ b/room-hub/Dockerfile
@@ -0,0 +1,20 @@
+FROM golang:1.21-alpine as builder
+
+WORKDIR /proj
+
+COPY go.mod ./
+COPY go.sum ./
+RUN go mod download
+
+COPY *.go ./
+
+RUN go build -o bbb-room-hub
+
+FROM scratch
+
+COPY --from=builder /proj/bbb-room-hub /bbb-room-hub
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+
+EXPOSE 8080
+
+CMD [ "/bbb-room-hub" ]
\ No newline at end of file