👷 Add docker support and CI related stuff

.woodpecker/build.yaml

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+steps:
+  - name: publish_image
+    image: woodpeckerci/plugin-docker-buildx
+    settings:
+      repo: git.gnous.eu/${CI_REPO_OWNER}/plakken
+      dockerfile: docker/Dockerfile
+      platforms: linux/amd64,linux/arm64/v8,linux/arm
+      registry: https://git.gnous.eu
+      tag: ${CI_COMMIT}
+      username:
+          from_secret: docker_username
+      password:
+        from_secret: docker_password
+    when:
+      branch: ${CI_REPO_DEFAULT_BRANCH}
+      event: push
+  - name: publish_image_tag
+    image: woodpeckerci/plugin-docker-buildx
+    settings:
+      repo: git.gnous.eu/${CI_REPO_OWNER}/plakken
+      dockerfile: docker/Dockerfile
+      platforms: linux/amd64,linux/arm64/v8,linux/arm
+      registry: https://git.gnous.eu
+      tags:
+        - ${CI_COMMIT_TAG##v} # Remove v from tag
+        - stable
+      username:
+        from_secret: docker_username
+      password:
+        from_secret: docker_password
+    when:
+      event: tag

docker/Dockerfile

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+# Build
+FROM golang:1.22 AS build
+LABEL authors="gnousEU"
+
+WORKDIR /build
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY main.go ./
+COPY internal/ ./internal
+COPY static/ ./static
+COPY templates/ ./templates
+
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags "-w -s" # Enable static binary, target Linux, remove debug information and strip binary
+
+# Copy to our image
+FROM gcr.io/distroless/static-debian12:nonroot
+
+WORKDIR /app
+
+COPY --from=build /build/plakken ./
+
+ENV PLAKKEN_LISTEN ":3000"
+
+EXPOSE 3000/tcp
+
+ENTRYPOINT ["/app/plakken"]

docker/docker-compose.dev.yaml

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+version: "3"
+
+networks:
+  plakken:
+    external: false
+
+services:
+  server:
+    build:
+      context: ../
+      dockerfile: docker/Dockerfile
+    restart: always
+    container_name: plakken
+    networks:
+      - plakken
+    ports:
+      - "3000:3000"
+    environment:
+      - PLAKKEN_REDIS_ADDRESS=redis:6379
+      - POSTGRES_PASSWORD=gitea
+      - PLAKKEN_REDIS_DB=0
+      - PLAKKEN_URL_LENGTH=5
+    depends_on:
+      - redis
+  redis:
+    image: redis:7-alpine
+    restart: always
+    healthcheck:
+      test: [ "CMD", "redis-cli", "ping" ]
+    networks:
+      - plakken

docker/docker-compose.yaml

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+version: "3"
+
+networks:
+  plakken:
+    external: false
+
+volumes:
+  redis:
+    driver: local
+
+services:
+  server:
+    image: git.gnous.eu/gnouseu/plakken:latest
+    restart: always
+    container_name: plakken
+    read_only: true
+    networks:
+      - plakken
+    ports:
+      - "3000:3000"
+    environment:
+      - PLAKKEN_REDIS_ADDRESS=redis:6379
+      - POSTGRES_PASSWORD=gitea
+      - PLAKKEN_REDIS_DB=0
+      - PLAKKEN_URL_LENGTH=5
+    depends_on:
+      - redis
+  redis:
+    image: redis:7-alpine
+    restart: always
+    healthcheck:
+      test: [ "CMD", "redis-cli", "ping" ]
+    networks:
+      - plakken
+    volumes:
+      - redis:/data