Nginx代理（jwilder/Nginx代理）连接被对等方重置（502坏网关）

我有一个简单的docker-compose.yml，我希望能够使用nginx作为容器的代理。现在我有两个容器admin和api，稍后我想让它们相互对话

现在，通过下面的配置，当我尝试访问api.host.dev时，我得到了以下信息：

nginx-proxy     | nginx.1    | 2017/04/19 15:18:35 [error] 26#26: *1 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 192.168.60.1, server: api.host.dev, request: "GET / HTTP/1.1", upstream: "http://172.18.0.4:9000/", host: "api.host.dev"
nginx-proxy     | nginx.1    | api.host.dev 192.168.60.1 - - [19/Apr/2017:15:18:35 +0000] "GET / HTTP/1.1" 502 576 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"

现在我有点没主意了。以下是所有配置：

version: '2'
services:
    nginx-proxy:
       image: jwilder/nginx-proxy
       container_name: nginx-proxy
       ports:
        - "80:80"
        - "443:443"
       volumes:
        - /var/run/docker.sock:/tmp/docker.sock:ro

    admin:
        container_name: admin
        image: php:7.1-fpm
        restart: on-failure
        volumes:
            - ../admin:/var/www/admin
        working_dir: /var/www
        env_file:
            - ./variables/dev-admin.env

    api:
        container_name: api
        image: php:7.1-fpm
        restart: on-failure
        volumes:
            - ../api:/var/www/api
        working_dir: /var/www
        env_file:
            - ./variables/dev-api.env

*.env文件的内容：

dev-api.env：

APP_ENV=DEV
VIRTUAL_HOST=api.host.dev
VIRTUAL_PORT=9000

dev-admin.env：

APP_ENV=DEV
VIRTUAL_HOST=admin.host.dev
VIRTUAL_PORT=9000

/etc/nginx/conf.d/default.conf的内容：

docker compose up的完整输出：

---

使用compose时，每个服务都会使用其服务名称向其他容器公开，就像它是DNS主机名一样。因此，您希望将对admin.host.dev的引用更改为仅对admin的引用。例如，使用以下命令：

# admin.host.dev
upstream admin.host.dev {
                                ## Can be connect with "env_default" network
                        # admin
                        server admin:9000;
}

注意，在server语句中，它现在使用主机名admin。这将自动解析为管理员容器的容器IP

但请注意，我没有更改上游的名称-这是nginx的内部名称，您不必更改它

您还需要更改另一个上游服务器的服务器名称

sudo docker-compose up --remove-orphans
Recreating admin
Recreating nginx-proxy
Recreating api
Attaching to admin, api, nginx-proxy
admin    | [19-Apr-2017 15:18:24] NOTICE: fpm is running, pid 1
admin    | [19-Apr-2017 15:18:24] NOTICE: ready to handle connections
api      | [19-Apr-2017 15:18:24] NOTICE: fpm is running, pid 1
api      | [19-Apr-2017 15:18:24] NOTICE: ready to handle connections
nginx-proxy     | forego     | starting dockergen.1 on port 5000
nginx-proxy     | forego     | starting nginx.1 on port 5100
nginx-proxy     | dockergen.1 | 2017/04/19 15:18:25 Generated '/etc/nginx/conf.d/default.conf' from 3 containers
nginx-proxy     | dockergen.1 | 2017/04/19 15:18:25 Running 'nginx -s reload'
nginx-proxy     | dockergen.1 | 2017/04/19 15:18:25 Watching docker events
nginx-proxy     | dockergen.1 | 2017/04/19 15:18:25 Contents of /etc/nginx/conf.d/default.conf did not change. Skipping notification 'nginx -s reload'
nginx-proxy     | nginx.1    | 2017/04/19 15:18:35 [error] 26#26: *1 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 192.168.60.1, server: api.host.dev, request: "GET / HTTP/1.1", upstream: "http://172.18.0.4:9000/", host: "api.host.dev"
nginx-proxy     | nginx.1    | api.host.dev 192.168.60.1 - - [19/Apr/2017:15:18:35 +0000] "GET / HTTP/1.1" 502 576 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"
nginx-proxy     | nginx.1    | 2017/04/19 15:18:45 [error] 26#26: *3 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 192.168.60.1, server: admin.host.dev, request: "GET / HTTP/1.1", upstream: "http://172.18.0.3:9000/", host: "admin.host.dev"
nginx-proxy     | nginx.1    | admin.host.dev 192.168.60.1 - - [19/Apr/2017:15:18:45 +0000] "GET / HTTP/1.1" 502 576 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"
^[[A^[[Anginx-proxy     | nginx.1    | 2017/04/19 15:24:47 [error] 26#26: *5 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: 192.168.60.1, server: api.host.dev, request: "GET / HTTP/1.1", upstream: "http://172.18.0.4:9000/", host: "api.host.dev"
nginx-proxy     | nginx.1    | api.host.dev 192.168.60.1 - - [19/Apr/2017:15:24:47 +0000] "GET / HTTP/1.1" 502 576 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"

# admin.host.dev
upstream admin.host.dev {
                                ## Can be connect with "env_default" network
                        # admin
                        server admin:9000;
}