Docker Toolsと一緒にDocker Lizeを試してみる

🛠 Docker Tools

💫 簡単に体験してみる

app.mjs

import express from 'express';
import connectToDatabase from './helpers.mjs'

const app = express();

app.get('/', (req, res) => {
  res.send('<h2>Hi there!</h2>');
});

await connectToDatabase();

app.listen(3000);

helpers.mjs

const connectToDatabase = () => {
  const dummyPromise = new Promise((resolve, reject) => {
    setTimeout(() => {
      resolve();
    }, 1000);
  });


  return dummyPromise;
};


export default connectToDatabase;

package.json

{
  "name": "docker-complete",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git",
    "url": "https://git-codecommit.us-east-1.amazonaws.com/v1/repos/docker-complete-guide"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "express": "^4.17.1"
  }
}

Dockerfile

FROM node:14

WORKDIR /app

COPY package.json .

RUN npm install

COPY . .

EXPOSE 3000

CMD ["node", "app.mjs"]

CLI

$ docker build .
$ docker run -p 3000:3000 <image-id>

📌 結果