WordPress的碼頭工人撰寫不會啓動mysql

Question

我試圖設置使用docker-compose.yml爲WordPress開發碼頭工人，容器，看起來像這樣：

version: '3' 
services: 
    db: 
    image: mysql:5.7 
    volumes: 
     - data:/var/lib/mysql 
    environment: 
     MYSQL_ROOT_PASSWORD: root 
     MYSQL_DATABASE: wordpress 
     MYSQL_USER: root 
    wordpress: 
    depends_on: 
     - db 
    image: wordpress:latest 
    ports: 
     - 8080:80 
     - 443:443 
    volumes: 
     - ./data:/data # Required if importing an existing database 
     - ./:/var/www/html # Theme development 
    environment: 
     WORDPRESS_DB_NAME: wordpress 
     WORDPRESS_DB_HOST: db:3306 
     WORDPRESS_DB_USER: root 
     WORDPRESS_DB_PASSWORD: root 
    phpmyadmin: 
    depends_on: 
     - db 
    image: phpmyadmin/phpmyadmin 
    environment: 
     MYSQL_ROOT_PASSWORD: root 
    ports: 
     - 3306:80 
volumes: 
    data: {} 

而且我得到這樣的錯誤：

wordpress_1 | Warning: mysqli::mysqli(): php_network_getaddresses: getaddrinfo failed: Name or service not known in - on line 22 
wordpress_1 | 
wordpress_1 | Warning: mysqli::mysqli(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: Name or service not known in - on line 22 
wordpress_1 | 
wordpress_1 | MySQL Connection Error: (2002) php_network_getaddresses: getaddrinfo failed: Name or service not known 

我試圖清除我的圖像和容器，但沒有運氣。任何想法爲什麼發生這種情況

Answer 1

嘗試提供wordpress和phpmyadmin的鏈接選項。

links: 
    - db:mysql 

編輯：檢查this的問題。將MySQL添加到數據庫。如果解決了這個問題，我不會這麼做，我以後一回家就必須嘗試。