container image

Author: Lifeismana

.dockerignore

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+*
+!src/*
+!package*.json
+config
+!config/config.example.yaml

.github/workflows/docker_build.yml

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+name: Build Docker image Steam-Watcher
+
+on:
+    schedule:
+        - cron: "0 5 * * 1"
+    push:
+        branches: ["main"]
+    pull_request:
+        branches: ["main"]
+
+concurrency:
+    group: ${{ github.workflow }}
+
+env:
+    TITLE: GameTracking Monitor
+    # github.repository as <account>/<repo>
+    GHCR_SLUG: ghcr.io/lifeismana/steam-watcher
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        permissions:
+            packages: write
+
+        steps:
+            - name: Checkout repository
+              uses: actions/checkout@v6
+
+            - name: Docker meta
+              id: meta
+              uses: docker/metadata-action@v6
+              with:
+                  images: |
+                      ${{ env.GHCR_SLUG }}
+                  labels: |
+                      maintainer=${{ github.repository_owner }}
+                      org.opencontainers.image.vendor=${{ github.repository_owner }}
+                      org.opencontainers.image.title=${{ env.TITLE }}
+
+            - name: Setup Docker buildx
+              uses: docker/setup-buildx-action@v4.0.0
+
+            # Login against a Docker registry except on PR
+            # https://github.com/docker/login-action
+            - name: Log into registry
+              if: github.event_name != 'pull_request'
+              uses: docker/login-action@v4.0.0
+              with:
+                  registry: ghcr.io
+                  username: ${{ github.repository_owner }}
+                  password: ${{ secrets.GITHUB_TOKEN }}
+
+            # Build and push Docker image with Buildx (don't push on PR)
+            # https://github.com/docker/build-push-action
+            - name: Build and push Docker image
+              id: build-and-push
+              uses: docker/build-push-action@v7.0.0
+              with:
+                  push: ${{ github.event_name != 'pull_request' }}
+                  tags: ${{ env.GHCR_SLUG }}:latest
+                  cache-from: ${{ env.GHCR_SLUG }}:latest
+                  labels: ${{ steps.meta.outputs.labels }}

Dockerfile

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+FROM node:25-alpine3.23 AS builder
+WORKDIR /build-stage
+COPY package*.json ./
+RUN npm ci
+COPY src/* ./
+
+FROM alpine:3.23
+WORKDIR /usr/src/app
+RUN apk add --no-cache libstdc++ dumb-init \
+  && addgroup -g 1000 node && adduser -u 1000 -G node -s /bin/sh -D node \
+  && chown node:node ./
+COPY --from=builder /usr/local/bin/node /usr/local/bin/
+COPY --from=builder /usr/local/bin/docker-entrypoint.sh /usr/local/bin/
+COPY config/config.example.yaml ./config/config.yaml
+ENTRYPOINT ["docker-entrypoint.sh"]
+VOLUME [ "/var/cache/gametracking-monitor" ]
+USER node
+COPY --from=builder /build-stage/ ./
+CMD ["dumb-init", "node", "bot.mjs"]

docker-compose.yml

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+services:
+    steam-watcher:
+        build: .
+        container_name: steam-watcher
+        volumes:
+            - ./config/:/usr/src/app/config/
+        restart: always