我刚刚完成了 YouTube 上的 Docker 教程:
我能够为 PHP 和 MySQL 创建几个 Docker 容器。文件结构如下:
>Docker_PHP_MySQL
>DB
-Dockerfile
>src
-index.php
>www
-Dockerfile
development.env
docker-compose.yml
数据库 Dockerfile:
FROM mysql:8.0
索引.php:
<?php
$mysqli = new mysqli('tut07-db', getenv('MYSQL_USER'), getenv('MYSQL_PASSWORD'), 'information_schema');
if($mysqli->connect_error)
{
echo 'Connection Error [', $mysqli->connect_errno, ']: ', $mysqli->connect_error;
}
else
{
echo 'MySQLi Connected Successfully!';
}
?>
www Dockerfile:
FROM php:7.2-apache
RUN docker-php-ext-install mysqli
RUN docker-php-ext-enable mysqli
这是development.env 文件:
MYSQL_USER=sys_admin
MYSQL_PASSWORD=sys_password
MYSQL_ROOT_PASSWORD=root_password
最后是 docker-compose.yml 文件:
version: "3"
networks:
tut07-frontend:
driver: bridge
ipam:
driver: default
config:
- subnet: 172.10.1.0/24
tut07-backend:
driver: bridge
ipam:
driver: default
config:
- subnet: 172.10.2.0/23
services:
tut07-db:
build: ./db
command: --default-authentication-plugin=mysql_native_password
ports:
- 3306:3306
networks:
tut07-backend:
ipv4_address: 172.10.3.2
env_file:
- ./development.env
tut07-www:
build: ./www
ports:
- 8080:80
volumes:
- ./src:/var/www/html/
networks:
tut07-backend:
ipv4_address: 172.10.2.2
tut07-frontend:
ipv4_address: 172.10.1.2
depends_on:
- tut07-db
env_file:
- ./development.env
现在我知道我将完全盲目......
在 dbeaver 中,我尝试建立连接:
但是当我测试连接时,我得到以下响应:
我该如何解决这个问题?