[샘플코드] 입문자를 위한 Docker and Dockerizing

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J.phil
2023-09-05
2023-08-28
1416

### [샘플코드] 입문자를 위한 Docker and Dockerizing

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![입문자를 위한 Docker and Dockerizing](https://cdn.inflearn.com/public/files/courses/331002/c93f8315-ab56-41e4-b2ff-1cbdf3df3b9c/blob)

해당 첨부파일은 인프런 - [입문자를 위한 Docker and Dockerizing](https://inf.run/vNpD) 특강에서 사용하는 샘플 코드입니다. 
특강을 수강하시는 분들은 아래 링크를 통해 다운을 받은 후 코드랩을 진행해주세요.

[download special_lecture_template](https://drive.google.com/file/d/1NMYMV9FKgBxUNevggYUIEdPPl26VHMDr/view?usp=sharing)

---

### Install Docker-Compose

여러분 Ubuntu 머신에 `Docker` 가 설치되었다는 가정하에 `Docker Compose` 설치를 안내하겠습니다.

i. 만약 원하는 Version을 설치하고 싶으실 경우 v2.5.0 대신 다른 버전 명시
```
$ sudo curl -L "https://github.com/docker/compose/releases/download/v2.5.0/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
```
ii. 실행 권한 부여
```
$ sudo chmod +x /usr/local/bin/docker-compose
```

iii. 설치 확인
```
$ docker-compose --version
```

---

### 실습 템플릿 코드

**node/Dockerfile**
```Dockerfile
FROM node:16-alpine

WORKDIR /app

COPY package*.json ./

RUN npm install

COPY index.js ./

ENTRYPOINT ["node", "index.js"]
```

**node/index.js**
```javascript
const express = require('express');
const app = express();
/*
 */

const PORT=5000

app.get('/', (req, res) => res.send('Hello World'));

app.get('/health', (req, res) => {

/*
   */

})

app.listen(PORT, () => {
    console.log('node js server is running');
})
```

**nginx/conf.d/app.conf**
```
server {

location / {
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;

}
}
```

**docker-compose.yml**
```yml
version: '3.8'

services:

test_web:
    restart: always
    build:
      context: ./nginx
      
    # ports:
    #   - 
    # depends_on:
    #   -

test_app:
    restart: always
    build:
      context: ./node
    # ports:
    #   - 
    # expose:
    #   - 
    # depends_on:
    #   -

test_db:
    restart: unless-stopped
    build:
      context: ./mysql

# hostname: 
    # ports:
    #   - 
    # environment:
    #   MYSQL_DATABASE: test 
    #   MYSQL_ROOT_HOST: '%'
    #   MYSQL_ROOT_PASSWORD: 1234
```

**mysql 접속 방법 after docker-compose**
```
$ mysql -u root -p -h 127.0.0.1 -P 3308
```

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