[ci] Add GHCR publishing

Signed-off-by: Knut Ahlers <knut@ahlers.me>

.git_changerelease.yaml

@@ -16,7 +16,7 @@ release_commit_message: "Release: OTS {{.Version}}"
 # bash inside the commands.
 pre_commit_commands:
   - |-
-    yq -iP "(select(.spec.template.spec | has(\"containers\")) | .spec.template.spec.containers[] | select(.name == \"ots\").image) = \"luzifer/ots:v${TAG_VERSION}\"" docs/k8s_example.yml
+    yq -iP "(select(.spec.template.spec | has(\"containers\")) | .spec.template.spec.containers[] | select(.name == \"ots\").image) = \"ghcr.io/luzifer/ots:v${TAG_VERSION}\"" docs/k8s_example.yml
     git add docs/k8s_example.yml
   - |-
     yq -iP ".services.app.build.context = \"https://github.com/Luzifer/ots.git#v${TAG_VERSION}\"" docker-compose.yml

.github/workflows/docker-publish.yml

@@ -0,0 +1,36 @@
+---
+
+name: docker-publish
+on:
+  push:
+    branches: ['master']
+    tags: ['v*']
+
+permissions:
+  packages: write
+
+jobs:
+  docker-publish:
+    defaults:
+      run:
+        shell: bash
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          lfs: true
+          show-progress: false
+
+      - name: Log into registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Docker Build & Publish
+        run: bash ci/docker-publish.sh
+
+...

Dockerfile

@@ -27,7 +27,7 @@ FROM alpine:latest
 
 LABEL org.opencontainers.image.authors='Knut Ahlers <knut@ahlers.me>' \
     org.opencontainers.image.version='1.12.0' \
-    org.opencontainers.image.url='https://hub.docker.com/r/luzifer/ots/' \
+    org.opencontainers.image.url='https://github.com/Luzifer/ots/pkgs/container/ots' \
     org.opencontainers.image.documentation='https://github.com/Luzifer/ots/wiki' \
     org.opencontainers.image.source='https://github.com/Luzifer/ots' \
     org.opencontainers.image.licenses='Apache-2.0'

Dockerfile.minimal

@@ -27,7 +27,7 @@ FROM scratch
 
 LABEL org.opencontainers.image.authors='Knut Ahlers <knut@ahlers.me>' \
     org.opencontainers.image.version='1.12.0' \
-    org.opencontainers.image.url='https://hub.docker.com/r/luzifer/ots/' \
+    org.opencontainers.image.url='https://github.com/Luzifer/ots/pkgs/container/ots' \
     org.opencontainers.image.documentation='https://github.com/Luzifer/ots/wiki' \
     org.opencontainers.image.source='https://github.com/Luzifer/ots' \
     org.opencontainers.image.licenses='Apache-2.0'

README.md

@@ -1,7 +1,6 @@
 ![](https://badges.fyi/github/license/Luzifer/ots)
 ![](https://badges.fyi/github/latest-release/Luzifer/ots)
 ![](https://badges.fyi/github/downloads/Luzifer/ots)
-[![Go Report Card](https://goreportcard.com/badge/github.com/Luzifer/ots)](https://goreportcard.com/report/github.com/Luzifer/ots)
 
 # Luzifer / OTS
 

ci/docker-publish.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+function log() {
+  echo "[$(date +%H:%M:%S)] $@" >&2
+}
+
+[[ -n $GITHUB_REF_NAME ]] || {
+  log "ERR: This script is intended to run on a Github Action only."
+  exit 1
+}
+
+repo="ghcr.io/${GITHUB_REPOSITORY,,}"
+tags=()
+
+case "${GITHUB_REF_TYPE}" in
+branch)
+  # Generic build to develop: Workflow has to limit branches to master
+  tags+=(develop)
+  ;;
+tag)
+  # Build to latest & tag: Older tags are not intended to rebuild
+  tags+=(latest ${GITHUB_REF_NAME})
+  ;;
+*)
+  log "ERR: The ref type ${GITHUB_REF_TYPE} is not handled."
+  exit 1
+  ;;
+esac
+
+log "Building Docker image..."
+docker build -t "${repo}:local" .
+
+for ref in "${tags[@]}"; do
+  log "Pushing Docker image to '${repo}:${ref}'..."
+  docker tag "${repo}:local" "${repo}:${ref}"
+  docker push "${repo}:${ref}"
+done
+
+log "Publish finished."