docker compose

我們的專案用到了go，mysql，nginx，使用docker compose可以很方便的一次全部run起來

docker compose需要寫yaml設定檔來處理，在專案中創建docker-compose.yaml寫入

version: '3'
services:
  db:
    image: mysql:8.0
    ports:
      - "3306:3306"
    environment:
      MYSQL_ROOT_PASSWORD: your_password
      MYSQL_DATABASE: app
    volumes: 
      - ./database/maindata:/var/lib/mysql
      - ./app/config/database/mysql.cnf:/etc/mysql/conf.d/mysql.cnf
  app:
    image: local/test #yanbinlin/creater:latest
    ports:
      - "8000:8000"
      - "8001:8001"
      - "8002:8002"
    depends_on:
      - db
    volumes: 
      - ./app/view:/view
      - ./app/config/app:/config/app
      - ./app/file:/file
      - ./log:/log
  proxy:
    image: nginx
    ports:
      - "80:80"
      - "443:443"
    volumes: 
      - ./app/config/nginx/nginx.conf:/etc/nginx/conf.d/default.conf
      - ./app/log/nginx:/var/log/nginx
      - /home/danny/danny/ssl/mkcert:/etc/nginx/certs
    depends_on:
      - app

解釋：

• db, app, proxy這個是設定的名稱，可以自由命名
• depends_on 等待指定的image run起來才會開始run，不然docker compose會同時全部一起運行

輸入

docker-compose up

就能跑起來了

docker compose預設就會建一個network來處理container間的傳輸，我們已經使用nginx了，所以我們不需要對外註冊那麼多port，現在改寫docker-compose.yaml

version: '3'
services:
  db:
    image: mysql:8.0
    environment:
      MYSQL_ROOT_PASSWORD: 59358C6A0FAF01FDB7F37998E7CD85845C5C534E
      MYSQL_DATABASE: test
    volumes: 
      - ./database/maindata:/var/lib/mysql
      - ./app/config/database/mysql.cnf:/etc/mysql/conf.d/mysql.cnf
  app:
    image: local/test #yanbinlin/creater:latest
    volumes: 
      - ./app/view:/view
      - ./app/config/app:/config/app
      - ./app/file:/file
      - ./log:/log
    depends_on:
      - db
  proxy:
    image: nginx
    ports:
      - "80:80"
      - "443:443"
    volumes: 
      - ./app/config/nginx/nginx.conf:/etc/nginx/conf.d/default.conf
      - ./app/log/nginx:/var/log/nginx
      - /home/danny/danny/ssl/mkcert:/etc/nginx/certs
    depends_on:
      - app

docker compose建立的network可以用設定名去連線到其他container，如http://app:8000就換連到app的8000 port，現在改寫config/nginx/nginx.conf的location

resolver 127.0.0.11;
proxy_pass http://app:8000;

解釋：

• 127.0.0.11是docker network的dns server，他會將設定名map到docker內的ip位置

我們連到database的host也要修改一下，改寫config/app/app.yaml的databases.main.host為DB

總結

我們的應用已經順利跑起來了，隨時都能上線了

目前的設定檔

log_format logdata $Host _ $request_uri | $http_origin | $cors | $pos | $allow_origin _ $allow_methods _ $allow_headers ;

map $http_origin $cors {

  '~*^https?://(account\.|asset\.|)dcreater\.com$' 'true';
}
map $cors $allow_origin {

  'true' $http_origin;
}
map $cors $allow_methods {

  'true' 'GET, OPTIONS, POST';
}
map $cors $allow_headers {

  'true' 'User-Agent,Keep-Alive,Content-Type,Pragma,Cache-Control,Upgrade-Insecure-Requests';
}

server {

  listen	80;

  listen  443   ssl;
  ssl_certificate  /etc/nginx/certs/dcreater.com.pem;
  ssl_certificate_key  /etc/nginx/certs/dcreater.com-key.pem;

  server_name dcreater.com;

  location / {
    resolver 127.0.0.11;
    proxy_pass http://app:8000;
  }
  access_log /var/log/nginx/access.log logdata;
  error_log /var/log/nginx/error.log;
}

server {

  listen	80;

  listen  443   ssl;
  ssl_certificate  /etc/nginx/certs/_wildcard.dcreater.com.pem;
  ssl_certificate_key  /etc/nginx/certs/_wildcard.dcreater.com-key.pem;

  server_name account.dcreater.com;

  location / {
    if ($request_method = 'OPTIONS') {
      return 204;
    }
    resolver 127.0.0.11;
    proxy_pass http://app:8001;
	set $pos "43";
    add_header Access-Control-Allow-Origin $allow_origin;
    add_header Access-Control-Allow-Credentials $cors;
    add_header Access-Control-Allow-Methods $allow_methods;
    add_header Access-Control-Allow-Headers $allow_headers;
  }
  access_log /var/log/nginx/access.log logdata;
  error_log /var/log/nginx/error.log;
}

server {

  listen	80;

  listen  443   ssl;
  ssl_certificate  /etc/nginx/certs/_wildcard.dcreater.com.pem;
  ssl_certificate_key  /etc/nginx/certs/_wildcard.dcreater.com-key.pem;

  server_name asset.dcreater.com;

  access_log /var/log/nginx/access.log logdata;
  error_log /var/log/nginx/error.log;
  location / {
    if ($request_method = 'OPTIONS') {
      return 204;
    }
    resolver 127.0.0.11;
    proxy_pass http://app:8002;

    add_header Access-Control-Allow-Origin $allow_origin;
    add_header Access-Control-Allow-Methods $allow_methods;
    add_header Access-Control-Allow-Headers $allow_headers;
  }
}

目前的工作環境

.
├── app
│   ├── apperr
│   │   ├── error.go
│   │   └── handle.go
│   ├── common
│   │   └── cookie.go
│   ├── database
│   │   ├── auth.go
│   │   ├── connect.go
│   │   ├── error.go
│   │   ├── main.go
│   │   └── scheme.go
│   ├── Dockerfile
│   ├── go.mod
│   ├── go.sum
│   ├── log
│   │   ├── logger.go
│   │   └── logging.go
│   ├── main.go
│   ├── middleware
│   │   ├── auth.go
│   │   ├── error.go
│   │   └── log.go
│   ├── router
│   │   ├── account.go
│   │   ├── asset.go
│   │   ├── host_switch.go
│   │   └── main.go
│   ├── serve
│   │   ├── account.go
│   │   ├── asset.go
│   │   ├── auth.go
│   │   ├── main.go
│   │   └── main_test.go
│   ├── setting
│   │   └── setting.go
│   ├── util
│   │   ├── debug
│   │   │   ├── stack.go
│   │   │   └── stack_test.go
│   │   ├── file
│   │   │   └── file.go
│   │   ├── hash
│   │   │   ├── hash.go
│   │   │   └── hash_test.go
│   │   └── random
│   │       └── random.go
│   └── view
│       ├── css
│       ├── html
│       │   ├── component
│       │   │   ├── blogContainer.html
│       │   │   ├── blogList.html
│       │   │   ├── editor.html
│       │   │   ├── navigation.html
│       │   │   └── signContainer.html
│       │   └── meta
│       │       ├── head.html
│       │       └── index.html
│       └── js
│           ├── account.js
│           ├── editor.js
│           ├── main.js
│           ├── owner.js
│           └── sign.js
├── config
│   ├── app
│   │   ├── app.yaml
│   │   └── error.yaml
│   └── nginx
│       └── nginx.conf
├── database
│   └── maindata
└── docker-compose.yaml