btc-docker-lab4

애플리케이션 소스 코드를 포함한 컨테이너 빌드하기


1. nodejs 애플리케이션 컨테이너 빌드하기
$ mkdir appjs
$ cd appjs/
$ cat > app.js
const http = require('http');
const os = require('os');
console.log("Test server starting…");
var handler = function(req, res) {
  res.writeHead(200);
  res.end("Container Hostname: " + os.hostname() + "\n");
};
var www = http.createServer(handler);
www.listen(8080);
 

$ cat > Dockerfile
FROM node:12
COPY app.js /app.js
ENTRYPOINT ["node", "app.js"]


2. 컨테이너 빌드
$ docker build -t appjs .


3. 빌드 된 컨테이너 확인
$ docker images
REPOSITORY   TAG        IMAGE ID       CREATED          SIZE
appjs        latest     12cfd448b8eb   21 seconds ago   918MB


4. 빌드한 컨테이너 실행해보기
$ docker run -d --name appjs appjs
$ docker ps
CONTAINER ID   IMAGE     COMMAND         CREATED         STATUS         PORTS     NAMES
be999811a5d6   appjs     "node app.js"   5 seconds ago   Up 4 seconds             appjs

$ curl 172.17.0.2:8080
Container Hostname: be999811a5d6


5. 실행되었던 컨테이너를 종료하자.
$ docker rm -f appjs