Detailed process of installing Docker, creating images, loading and running NodeJS programs

System environment: Windows 7

1. Install Docker

Download and install docker-ToolBox from the Docker official website and install

After the installation is complete, three icons appear:

2. Create a Docker image

Docker can automatically build images based on the contents of the Dockerfile file.

Dockerfile is a text file that contains all the commands for creating an image. Use the docker build command to build an image based on its content.

Example, create a Docker image of a NodeJS program:

1. Create a new directory and initialize it with npm init in cmd.

2. Create a demo program with the following contents:

Note: If a formal product or project is packaged and released with Docker, such as the functional code in the above example, in order to prevent the source code from being extracted and leaked, the NodeJS code can be obfuscated and encrypted with JShaman before making the image.

Create an empty file named Dockerfile and fill in the following content:

FROM node:boron
 
# Create app directory
WORKDIR /app
 
# Install app dependencies
COPY package.json .
# For npm@5 or later, copy package-lock.json as well
# COPY package.json package-lock.json ./
 
RUN npm install
 
# Bundle app source
COPY . .
 
EXPOSE 3000
CMD [ "node", "demo.js" ]

3. Create an image

Start the Docker Quickstart Terminal and run the command

docker build -t nodedemo .

(. means creating in the current directory)

3. Run the image

docker run -p 3000:3000 -d nodedemo

Then you can access the nodejs service.

The above is the details of installing Docker, creating images, loading and running NodeJS programs. For more information about docker NodeJS running programs, please pay attention to other related articles on 123WORDPRESS.COM!