Setup CICD

.github/workflows/docker-image.yml

@@ -37,12 +37,16 @@ jobs:
         uses: docker/metadata-action@v5
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
+            type=ref,event=branch
+            type=sha
 
       # 3. Build and push Docker image
       - name: Build and push Docker image
         uses: docker/build-push-action@v5
         with:
-          context: .
+          context: ./backend
           push: ${{ github.event_name != 'pull_request' }} # Only push on merge to main
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
@@ -73,5 +77,5 @@ jobs:
           script: |
             cd ~/my-app
             echo ${{ secrets.GITHUB_TOKEN }} | docker login ghcr.io -u ${{ github.actor }} --password-stdin
-            docker compose pull
-            docker compose up -d
+            docker-compose pull
+            docker-compose up -d

backend/Dockerfile

@@ -1,3 +1,4 @@
+docker
 # --- STAGE 1: Build ---
 FROM node:20-alpine AS builder
 WORKDIR /app
@@ -19,11 +20,12 @@ ENV NODE_ENV=production
 
 # Copy ONLY the production dependencies (ignores devDependencies like TypeScript)
 COPY package*.json ./
-RUN npm install --omit=dev
+RUN apk add --no-cache ffmpeg ca-certificates && \
+    npm install --omit=dev
 
 # Copy the compiled JS from the builder stage
 COPY --from=builder /app/dist ./dist
 
 # Start the app
 EXPOSE 3000
-CMD ["node", "dist/index.js"]
+CMD ["node", "dist/utils/index.js"]

backend/src/services/transcription.service.ts

@@ -15,10 +15,13 @@ const TEMP_DIR = path.resolve(ROOT_DIR, 'temp_audio');
 const SOURCE_AUDIO = path.resolve(TEMP_DIR, 'source_audio.mp3');
 
 // Configure FFmpeg paths
-if (ffmpegStatic) {
+if (process.env.NODE_ENV === 'production') {
+    // In production (Docker), we prefer the system-installed ffmpeg
+    console.log("Using system ffmpeg in production");
+} else if (ffmpegStatic) {
     ffmpeg.setFfmpegPath(ffmpegStatic);
 } else {
-    throw new Error("FFmpeg binary path could not be resolved.");
+    console.warn("ffmpeg-static path could not be resolved, falling back to system ffmpeg.");
 }
 
 if (ffprobeStatic && ffprobeStatic.path) {

docker-compose.yml

@@ -0,0 +1,8 @@
+services:
+  web:
+    image: ghcr.io/edwardrl101/ai-lecture-video-helper:latest
+    ports:
+      - "80:3000"
+    pull_policy: always
+    env_file:
+      - .env