Node-Docker-RestApi Demo

This is a demo with Nodejs - REST-API - Docker. Kindly check other branches for individual features.

To run this code locally

• git clone https://github.com/nicks9188/nodedemo.git
• cd nodedemo
• npm install
• npm start

To run with docker

• docker build -t node-docker-restapi . e.g., docker build -t nicks9188/node-docker-restapi:v1 .
• docker run -d -p <your_port_number>:3000 node-docker-restapi e.g. docker run --name node-docker-restapi -p 9000:3000 -d nicks9188/node-docker-restapi:v1
• docker ps to verify.
• docker logs <container_id> to get logs
• Now go to http://<ip_address>:<your_port_number>/ to check.
• To stop: docker stop <container_id or container_name>. E.g. docker stop node-docker-restapi

Now we have successfully dockerized our nodejs application. 👍 🤘

Pushing our image to docker hub

An account is necessary in dockerhub if want to push own image. Once we push our image, we can use it again and again.

• docker login
• docker push <image_name>:<tag> e.g., docker push nicks9188/node-docker-restapi:v1
• Now go https://hub.docker.com/<your_account> to check.
• To use this pushed image: docker pull <dockerhub_username>/<image_name>:<tag> e.g. docker pull nicks9188/node-docker-restapi:v1
• To use this image again: docker run --name <give_it_a_name> -p <your_port_no>:3000 -d nicks9188/node-docker-restapi:v1

Tips:

• Don't forget to open respective port in your host machine.
• To clear everything use docker system prune -a
• Remember to stop container before removing everything.

Conclusion

We created a RESTApi app with Node.js. Created a new Docker image for this app. Pushed this image to Docker Hub for future use and We used our newely created image as a container.

From there, we are able to destroy our image and container and recreate them using our Docker Hub repository.

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