From 397f67224875943a94dbb3e8e3e1169648ec84fa Mon Sep 17 00:00:00 2001
From: Olliver Schinagl <oliver@schinagl.nl>
Date: Mon, 5 Jun 2023 17:00:13 +0200
Subject: [PATCH] docker: Automatically build and push container

The current sslh container works fine, but needs to be created manually
and locally by the user. Instead, let the pipeline do the dirty work and
push it to this repo's own registry.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
---
 .github/workflows/container-build.yaml | 72 ++++++++++++++++++++++++++
 README.md                              |  6 +--
 2 files changed, 73 insertions(+), 5 deletions(-)
 create mode 100644 .github/workflows/container-build.yaml

diff --git a/.github/workflows/container-build.yaml b/.github/workflows/container-build.yaml
new file mode 100644
index 0000000..ed55f56
--- /dev/null
+++ b/.github/workflows/container-build.yaml
@@ -0,0 +1,72 @@
+name: Create and publish Container image
+
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - master
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    strategy:
+      fail-fast: true
+      matrix:
+        platform:
+          - linux/amd64
+          - linux/386
+          - linux/arm64
+          - linux/arm/v6
+          - linux/arm/v7
+
+    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 Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=edge
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+
+      - name: Build and push
+        uses: docker/build-push-action@v4
+        with:
+          platforms: ${{ matrix.platform }}
+          context: .
+          file: Dockerfile
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
diff --git a/README.md b/README.md
index e0ff815..4781c01 100644
--- a/README.md
+++ b/README.md
@@ -44,16 +44,12 @@ How to use
 
 ---
 
-Build docker image
-
-    make docker
-
 
 ```bash
 docker run \
   --rm \
   -it \
-  sslh:latest \
+  ghcr.io/yrutschle/sslh:latest \
   --listen=0.0.0.0:443 \
   --ssh=hostname:22 \
   --tls=hostname:443