.devcontainer/devcontainer.json

+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/javascript-node
+{
+	"name": "Node.js",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/javascript-node:0-20",
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+
+	// Configure tool-specific properties.
+	"customizations": {
+		// Configure properties specific to VS Code.
+		"vscode": {
+			"settings": {},			
+			"extensions": [
+				"dbaeumer.vscode-eslint"
+			]
+		}
+	},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'portsAttributes' to set default properties for specific forwarded ports.
+	"portsAttributes": {
+		"3000": {
+			"label": "Hello Remote World",
+			"onAutoForward": "notify"
+		}
+	},
+
+	// Use 'otherPortsAttributes' to configure any ports that aren't configured using 'portsAttributes'.
+	// "otherPortsAttributes": {
+	// 		"onAutoForward": "silent"
+	// },
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "npm install"
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.dockerignore

+# Exclude all...
+*
+
+# ...except essential
+!.eslintrc.json
+!index.js
+!package*.json

.eslintrc.json

+{
+	"root": true,
+	"env": {
+		"node": true,
+		"es6": true
+	},
+	"rules": {
+		"no-console": 0,
+		"eqeqeq":"warn",
+		"no-cond-assign": 0,
+		"no-unused-vars": 1,
+		"no-extra-semi": "warn",
+		"semi": "warn"
+	},
+	"extends": "eslint:recommended",
+	"parserOptions": {
+		"ecmaFeatures": {
+			"experimentalObjectRestSpread": true
+		}
+	}
+}

.github/dependabot.yml

+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "npm" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"

.github/workflows/docker-publish.yml

+name: Docker
+
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+on:
+  push:
+    branches: [ "main" ]
+    # Publish semver tags as releases.
+    tags: [ 'v*.*.*' ]
+  pull_request:
+    branches: [ "main" ]
+
+env:
+  # Use docker.io for Docker Hub if empty
+  REGISTRY: ghcr.io
+  # github.repository as <account>/<repo>
+  IMAGE_NAME: ${{ github.repository }}
+
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      # This is used to complete the identity challenge
+      # with sigstore/fulcio when running outside of PRs.
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      # Workaround: https://github.com/docker/build-push-action/issues/461
+      - name: Setup Docker buildx
+        uses: docker/setup-buildx-action@v2
+
+      # Login against a Docker registry except on PR
+      # https://github.com/docker/login-action
+      - name: Log into registry ${{ env.REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      # Extract metadata (tags, labels) for Docker
+      # https://github.com/docker/metadata-action
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=ref,event=branch,prefix=,suffix=-{{sha}}-{{date 'x'}}
+
+      # Cache dependencies
+      # https://github.com/actions/cache
+      - name: Cache Docker layers
+        uses: actions/cache@v3
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-multi-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-multi-buildx
+
+      # 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@v4
+        with:
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          # Note the mode=max here
+          # More: https://github.com/moby/buildkit#--export-cache-options
+          # And: https://github.com/docker/buildx#--cache-tonametypetypekeyvalue
+          cache-to: type=local,mode=max,dest=/tmp/.buildx-cache-new
+
+      # Temp fix / Disabled on self-hosted runner
+      # https://github.com/docker/build-push-action/issues/252
+      # https://github.com/moby/buildkit/issues/1896
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
+
+
+      # # Install the cosign tool except on PR
+      # # https://github.com/sigstore/cosign-installer
+      # - name: Install cosign
+      #   if: github.event_name != 'pull_request'
+      #   uses: sigstore/cosign-installer@v3.3.0
+      #   with:
+      #     cosign-release: 'v2.2.2'
+
+      # # Sign the resulting Docker image digest except on PRs.
+      # # This will only write to the public Rekor transparency log when the Docker
+      # # repository is public to avoid leaking data.  If you would like to publish
+      # # transparency data even for private images, pass --force to cosign below.
+      # # https://github.com/sigstore/cosign
+      # - name: Sign the published Docker image
+      #   if: ${{ github.event_name != 'pull_request' }}
+      #   env:
+      #     COSIGN_EXPERIMENTAL: "true"
+      #   # This step uses the identity token to provision an ephemeral certificate
+      #   # against the sigstore community Fulcio instance.
+      #   run: echo "${{ steps.meta.outputs.tags }}" | xargs -I {} cosign sign {}@${{ steps.build-and-push.outputs.digest }}

.gitignore

+/node_modules

.hadolint.yaml

+ignored:
+  - DL3008

.vscode/launch.json

+{
+  "configurations": [
+  {
+    "name": "Launch Program",
+    "program": "${workspaceFolder}/index.js",
+    "request": "launch",
+    "skipFiles": [
+      "<node_internals>/**"
+    ],
+    "type": "node"
+  }
+  ]
+}
\ No newline at end of file

Dockerfile

+# VERSIONS
+ARG NODE_VERSION=20.10.0
+ARG NPM_VERSION=10.2.5
+
+# --------------> The builder image
+FROM node:$NODE_VERSION AS builder
+ENV NODE_ENV production
+WORKDIR /usr/src/app
+RUN apt-get update && apt-get install -y --no-install-recommends dumb-init
+ARG NPM_TOKEN
+COPY package*.json /usr/src/app/
+RUN echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" > .npmrc && \
+   npm install -g npm@$NPM_VERSION && \
+   npm ci --omit=dev && \
+   rm -f .npmrc
+ 
+# --------------> The production image
+FROM node:$NODE_VERSION-slim AS production
+ENV NODE_ENV production
+WORKDIR /usr/src/app
+COPY --from=builder /usr/bin/dumb-init /usr/bin/dumb-init
+COPY --chown=node:node --from=builder /usr/src/app/node_modules /usr/src/app/node_modules
+COPY --chown=node:node . /usr/src/app
+USER node
+CMD ["dumb-init", "node", "index.js"]

README.md

+# dummy-backend

index.js

+var express = require("express");
+var app = express();
+
+// Ingress
+app.enable('trust proxy');
+
+// --- <Logger
+
+const winston = require('winston');
+const consoleTransport = new winston.transports.Console();
+const myWinstonOptions = {
+    transports: [consoleTransport]
+};
+const logger = new winston.createLogger(myWinstonOptions);
+
+function logRequest(req, res, next) {
+    logger.info('ip: ' + req.ip + ', hostname: ' + req.hostname + ', url: ' + req.url);
+    next();
+}
+app.use(logRequest);
+
+function logError(err, req, res, next) {
+    logger.error('ip: ' + req.ip + ', hostname: ' + req.hostname + ', url: ' + req.url + ' <-> ' + err);
+    next();
+}
+app.use(logError);
+
+// --- Logger>
+
+app.get("/", (req, res, next) => {
+  res.status(200).send('<a href="/api">/api</a>');
+  next();
+});
+
+app.get("/api", (req, res, next) => {
+  res.status(200).send('<a href="/api/users">/api/users</a>');
+  next();
+});
+
+app.get("/api/users", (req, res, next) => {
+  res.json([
+    {"id": "1", "title": "One"},
+    {"id": "2", "title": "Two"},
+    {"id": "3", "title": "Three"},
+    {"id": "4", "title": "Four"}
+  ]);
+  next();
+});
+
+app.listen(3000, () => {
+ console.log("Server running on port 3000");
+});

package.json

+{
+  "name": "dummy-backend",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {
+    "express": "^4.18.2",
+    "winston": "^3.11.0"
+  }
+}