如何在Docker中配置两个CodeIgniter模块站点？

一、调整Docker内Apache的sites.conf配置 #

原Apache配置仅指向根目录，需添加URL重写规则，让CodeIgniter能正确识别两个模块的请求路径。修改后的完整配置如下：

<VirtualHost *:80>
    ServerName 172.22.0.3 # Docker容器IP
    ServerAdmin webmaster@localhost
    DocumentRoot /var/www/html

    # 启用URL重写模块
    RewriteEngine On

    # 将site1路径请求映射到对应模块入口
    RewriteRule ^/site1/(.*)$ /index.php/site1/$1 [L]
    # 将site2路径请求映射到对应模块入口
    RewriteRule ^/site2/(.*)$ /index.php/site2/$1 [L]

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

完成修改后，在Docker容器内启用重写模块并重启Apache：

a2enmod rewrite
service apache2 restart

二、完善Nginx反向代理配置 #

1. Site2的Nginx配置 #

复制你已有的Site1配置，修改域名、日志路径及代理地址，同时补充必要的代理请求头：

# Site2 HTTPS服务配置
server {
    listen              443 ssl http2;
    server_name         site2.domain.com;

    proxy_intercept_errors on;
    include /usr/share/nginx/html/nginx-errors-ptbr/nginx-errors.conf;

    # SSL证书（若使用泛域名证书可与Site1复用）
    ssl_certificate     /etc/nginx/ssl/mykey_bundle.crt;
    ssl_certificate_key /etc/nginx/ssl/mykey.key;

    # 日志配置
    access_log          /var/log/nginx/site2.access.log;
    error_log           /var/log/nginx/site2.error.log warn;

    # 反向代理到Apache的site2路径
    location / {
        proxy_pass http://IP_HOST_DOCKER:8085/site2;
        # 传递请求头，确保CodeIgniter获取正确的请求信息
        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;
    }
}

# Site2 HTTP自动跳转HTTPS
server {
    listen      80;
    server_name site2.domain.com;
    return      301 https://site2.domain.com$request_uri;
}

2. 优化Site1的Nginx配置 #

给已有Site1配置补充相同的代理请求头，避免CodeIgniter无法获取正确的客户端信息：

server {
    listen              443 ssl http2;
    server_name         site1.domain.com;

    proxy_intercept_errors on;
    include /usr/share/nginx/html/nginx-errors-ptbr/nginx-errors.conf;

    ssl_certificate     /etc/nginx/ssl/mykey_bundle.crt;
    ssl_certificate_key /etc/nginx/ssl/mykey.key;

    access_log          /var/log/nginx/site1.access.log;
    error_log           /var/log/nginx/site1.error.log warn;

    location / {
        proxy_pass http://IP_HOST_DOCKER:8085/site1;
        # 新增代理请求头
        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;
    }
}

server {
    listen      80;
    server_name site1.domain.com;
    return      301 https://site1.domain.com$request_uri;
}

三、CodeIgniter模块配置调整（可选但建议） #

分别修改两个模块的config.php，设置正确的站点根URL：

• Site1：application/modules/site1/config/config.php

$config['base_url'] = 'https://site1.domain.com/';

• Site2：application/modules/site2/config/config.php

$config['base_url'] = 'https://site2.domain.com/';

四、验证配置并重启服务 #

1. 重启Docker内的Apache服务，确保配置生效；
2. 将Nginx的两个站点配置文件（如site1.conf、site2.conf）放入Nginx的conf.d目录；
3. 测试Nginx配置合法性：

nginx -t

4. 重启Nginx服务：

systemctl restart nginx

完成以上配置后，访问https://site1.domain.com和https://site2.domain.com即可分别对应Docker内的两个CodeIgniter模块站点，HTTP请求会自动跳转至HTTPS。

内容的提问来源于stack exchange，提问作者campos