dockerize

Author: wtao

backend/Dockerfile

@@ -15,6 +15,7 @@ COPY . .
 
 # Expose port 4000 to the outside world
 EXPOSE 4000
+ENV PORT=4000
 
 # Command to run the application
 CMD ["node", "index.mjs"]

backend/README.md

@@ -1,6 +1,8 @@
-# serverless to AWS lambda
+# ways of deployment
 
-## AWS setup
+## 1. AWS serverless (lambda)
+
+### setup
 
 you will need an aws api gateway and a new aws lambda function to begin with
 
@@ -16,4 +18,11 @@ sls package
 aws s3 cp ./serverless/lambda-mongo-grafana.zip s3://[bucket name]/[path key]
 
 aws lambda update-function-code --function-name [your lambda name] --s3-bucket [bucket name] --s3-key [path key] --region [region of your lambda]
-```
+```
+
+## 2. Docker container
+
+```bash
+docker build -t mongo-grafana .
+docker run -d -p 4000:4000 mongo-grafana
+```

backend/index.mjs

@@ -22,7 +22,9 @@ app.use((err, req, res, next) => {
 });
 
 // start the server
-const port = 4000;
+// read port from environment variable or default to 4000
+const port = process.env.PORT || 4000; 
+
 app.listen(port, () => {
   console.log(`Server is running on http://localhost:${port}`);
 });