how to create docker image for node js application code example
Example 1: simple nodejs dockerfile
FROM node:12-alpine
WORKDIR /app
COPY package.json yarn.lock ./
RUN yarn install --production
COPY . .
CMD ["node", "/app/src/index.js"]
Example 2: dockerfile for nodejs
FROM node:alpine
COPY ./ ./
RUN npm install
EXPOSE 8080
CMD ["npm", "start"]
Example 3: docker run npm install express syntax
FROM node:12
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
EXPOSE 8080
CMD [ "node", "server.js" ]
Example 4: simple nodejs dockerfile
{
"name": "docker_web_app",
"version": "1.0.0",
"description": "Node.js on Docker",
"author": "First Last <[email protected]>",
"main": "server.js",
"scripts": {
"start": "node server.js"
},
"dependencies": {
"express": "^4.16.1"
}
}