dockerizing-nodejs-with-multistage is a sample project that demonstrates how to use multi-stage builds in Docker to create optimized and smaller Docker images. This project uses Node.js to create a simple web application and package it into a Docker image. That project also shows how to build docker images from scratch.
Prerequisites
Before you begin, ensure that you have Docker installed on your local machine:
Getting Started
To get started, clone this repository to your local machine:
git clone https://github.com/vv173/dockerizing-nodejs-with-multistage.git
Next, navigate to the project directory:
cd dockerizing-nodejs-with-multistage/
Building the Docker Image
To build the Docker image, run the following command:
docker build --build-arg VERSION={version} -t {image-name} .
This command will use the Dockerfile in the project directory to build the Docker image.
Running the Docker Container
To run the Docker container, run the following command:
docker run -p 3000:3000 {image-name}
This command will start the Docker container and map port 3000 in the container to port 3000 on the host. You can now access the web application by opening a web browser and navigating to http://localhost:3000.
Test
To test that the application is running, you can use curl to make a GET request to the root endpoint:
curl http://localhost:3000/
If the application is running correctly, you should receive the following response:
{"ip":"(server_ip_address)","hostname":"(server_ip_address)","version":"(app_version)"}
Or you can use the docker ps command and check the health status.