feat: deploy using docker (#28)

Dockerfile

@@ -0,0 +1,29 @@
+# Use an official Node.js 20 runtime as a parent image
+FROM node:20
+
+# Create and set the working directory
+RUN mkdir -p /home/node/rudder-github-app && chown -R node:node /home/node/rudder-github-app
+
+# Set the working directory in the container
+WORKDIR /home/node/rudder-github-app
+
+# Copy package.json and package-lock.json to the working directory
+COPY package*.json ./
+
+# Install dependencies using npm ci
+RUN npm ci --no-audit --cache .npm
+
+# Copy the rest of the application code to the working directory
+COPY . .
+
+# Change ownership of the copied files to the node user
+RUN chown -R node:node /home/node/rudder-github-app
+
+# Switch to the node user
+USER node
+
+# Expose the port the app runs on
+EXPOSE 3000
+
+# Start the app using npm start
+CMD ["npm", "start"]

docker-compose.yml

@@ -0,0 +1,17 @@
+version: '3'
+services:
+  app:
+    build: .
+    ports:
+      - "3000:3000"
+    environment:
+      - NODE_ENV=production
+      - PORT=3000
+      - APP_ID=123456 # Update with your GitHub app ID
+      - GITHUB_APP_PRIVATE_KEY_BASE64=LS0tHL.....o= # Update with your GitHub app private key (base64 encoded)
+      - WEBHOOK_SECRET=webhooksecret # Update with your GitHub webhook secretset in your GitHub app
+      - WEBSITE_ADDRESS=http://localhost:3000 # Update with your public website address
+
+  # To enable live code changes during development, attach current directory as volume
+  #  volumes:
+  #    - .:/home/node/rudder-github-app

src/storage.js

@@ -4,6 +4,26 @@ import { resolve } from "path";
 import { PROJECT_ROOT_PATH } from "./helpers.js";
 
 const dbPath = process.env.DB_PATH || resolve(PROJECT_ROOT_PATH, "db.json");
+createFileIfMissing(dbPath);
+
+function createFileIfMissing(path){
+  try {
+    // Try to open the file in read-only mode
+    const fd = fs.openSync(path, 'r');
+    fs.closeSync(fd);
+    console.log('DB file exists at '+dbPath);
+  } catch (err) {
+    if (err.code === 'ENOENT') {
+      // If the file does not exist, create it
+      fs.writeFileSync(path, '[]', { flag: 'wx' }); // 'wx' flag ensures the file is created and not overwritten if it exists
+      console.log('DB file created at '+dbPath);
+    } else {
+      // Some other error occurred
+      console.error(err);
+      throw new Error("Failed to create the DB file at "+dbPath);
+    }
+  }
+}
 
 export const storage = {
   save(data) {