Question

我正在尝试使用docker在AWS ECS上运行php + mysql应用程序。应用程序堆栈由mysql，elk，php-fpm和nginx docker容器组成。容器都在同一个docker机器上运行。当任务启动时，nginx容器退出时出现以下错误： nginx：[emerg] host在/etc/nginx/conf.d/upstream.conf:1,/strong上游“php：9001”中找不到>

Nginx Dockerfile：

FROM alpine:3.4 RUN apk add --update nginx #Clear Cache and Temp Data RUN rm -rf /var/cache/apk/* && rm -rf /tmp/* ADD nginx.conf /etc/nginx/ ADD symfony.conf /etc/nginx/conf.d/ RUN echo "upstream php-upstream { server php:9001; }" > /etc/nginx/conf.d/upstream.conf RUN adduser -D -g '' -G www-data www-data CMD ["nginx"] EXPOSE 80 EXPOSE 443

RUN echo“上游php-upstream {服务器php：9001;}”＆gt; /etc/nginx/conf.d/upstream.conf

php:9001部分引用了php容器，该容器在AWS ECS任务定义中定义。

nginx.conf：

user www-data; worker_processes 4; pid /run/nginx.pid; events { worker_connections 2048; multi_accept on; use epoll; } http { server_tokens off; sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 15; types_hash_max_size 2048; include /etc/nginx/mime.types; default_type application/octet-stream; access_log off; error_log off; gzip on; gzip_disable "msie6"; include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; open_file_cache max=100; } daemon off;

symfony.conf：

server { server_name _; root /var/www/symfony/web; location / { try_files $uri @rewriteapp; } location @rewriteapp { rewrite ^(.*)$ /app.php/$1 last; } location ~ ^/(app|app_dev|config)\.php(/|$) { fastcgi_pass php-upstream; fastcgi_split_path_info ^(.+\.php)(/.*)$; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param HTTPS off; } error_log /var/log/nginx/symfony_error.log; access_log /var/log/nginx/symfony_access.log; }

/etc/php7/php-fpm.conf：

[symfony] user = nobody group = nobody listen = 0.0.0.0:9001 pm = dynamic pm.max_children = 1000 pm.start_servers = 1 pm.min_spare_servers = 1 pm.max_spare_servers = 3 env[DB_1_ENV_MYSQL_DATABASE] = $DB_1_ENV_MYSQL_DATABASE env[DB_1_ENV_MYSQL_USER] = $DB_1_ENV_MYSQL_USER env[DB_1_ENV_MYSQL_PASSWORD] = $DB_1_ENV_MYSQL_PASSWORD catch_workers_output = yes

我还尝试使用对nginx配置的相应更改来更改对listen = /var/run/php-fpm/php-fpm.sock或listen = 127.0.0.1:9001的监听，但这导致了各种其他错误消息。

Answer 1

我没有在php和nginx容器之间的AWS ECS任务定义中设置链接。

要设置容器的链接，请转到“网络设置”，然后在“链接”字段中输入链接。

Answer 2

@OnurDemir正确地说，当网络模式为links-awsvpc时，您不能使用"networkMode": "awsvpc",。

在这种网络模式下，您可以使用容器的名称来调用它们。

task-definition.json

{
    "family": "app-backend",
    "containerDefinitions": [
        {
            "name": "nginx",
            "image": "my-url-to-the-docker-image",
            "portMappings": [
                {
                    "containerPort": 80,
                    "hostPort": 80,
                    "protocol": "tcp"
                }
            ],
            "dependsOn": [
                {
                    "containerName": "php-fpm",
                    "condition": "START"
                }
            ],
            "essential": true
        },
        {
            "name": "php-fpm",
            "image": "my-url-to-the-docker-image",
            "portMappings": [
                {
                    "containerPort": 9000
                }
            ],
            "essential": true
        }
    ],
    "executionRoleArn": "ecsTaskExecutionRole",
    "cpu": "1024",
    "memory": "2048",
    "networkMode": "awsvpc"
}

在这里您可以看到：

nginx容器dependsOn php-fpm容器。
要引用其中的php-fpm容器，请f。例如nginx中的虚拟主机文件，您可以使用其名称php-fpm对其进行调用。

示例1：fastcgi_pass php-fpm:9000;

另一种方法，当使用AWS Fargate时，您可以仅调用回送127.0.0.1或localhost。 Described in some AWS blog使用awsvpc时，容器间建立连接，因为即使所有容器都在同一容器中，即使它们是单独的容器也是如此。

示例2：fastcgi_pass 127.0.0.1:9000;

AWS ECS Docker - nginx：[emerg]主机在上游找不到

2 个答案: