Question

我的ASP.Net Core应用程序能够使用Docker连接到postGres数据库，并且Docker compose成功（请参阅下面的Docker-Compose up输出）。但是，我无法从PC分别使用URL SELECT * FROM (SELECT times_show_up, COUNT(user_id) AS num_users, group_name1, group_name2 FROM ( SELECT user_id, COUNT(*) AS times_show_up, group_name1, group_name2 FROM table1 INNER JOIN (SELECT DISTINCT user_id, group_name2 FROM table2) t2 USING(user_id) GROUP BY user_id, group_name1, group_name2 ) t1 GROUP BY times_show_up, group_name1, group_name2) t9 UNION ALL (SELECT 0 AS times_show_up, SUM(CASE WHEN t1.user_id IS NULL THEN 1 ELSE 0 END) AS num_users, 'groupA' AS group_name1, group_name2 FROM table2 LEFT JOIN (SELECT user_id FROM table1 WHERE group_name1 = 'groupA') t1 USING(user_id) GROUP BY group_name2) UNION ALL (SELECT 0 AS times_show_up, SUM(CASE WHEN t1.user_id IS NULL THEN 1 ELSE 0 END) AS num_users, 'groupB' AS group_name1, group_name2 FROM table2 LEFT JOIN (SELECT user_id FROM table1 WHERE group_name1 = 'groupB') t1 USING(user_id) GROUP BY group_name2) --- ORDER BY group_name1, group_name2, times_show_up或http://IP_AddressOfRunningDockerContainer:443浏览docker容器上的ASP.Net Core应用程序或adminer（Postgres客户端）。

我可能会缺少什么？

获取容器IP地址（及其输出）的命令：

http://IP_AddressOfRunningDockerContainer:8080

Docker-组合输出：

docker inspect -f "{{ .NetworkSettings.IPAddress }}" <containerId>
IP_AddressOfRunningDockerContainer

Docker-Compose.yml：

db_1        | 2019-08-21 01:52:03.905 UTC [1] LOG:  listening on IPv4 address "0.0.0.0", port 5432
db_1        | 2019-08-21 01:52:03.905 UTC [1] LOG:  listening on IPv6 address "::", port 5432
db_1        | 2019-08-21 01:52:03.925 UTC [1] LOG:  listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
db_1        | 2019-08-21 01:52:03.964 UTC [22] LOG:  database system was shut down at 2019-08-21 01:30:03 UTC
db_1        | 2019-08-21 01:52:03.999 UTC [1] LOG:  database system is ready to accept connections
adminer_1   | PHP 7.3.7 Development Server started at Wed Aug 21 01:22:13 2019
adminer_1   | Listening on http://[::]:8080
adminer_1   | Document root is /var/www/html
adminer_1   | Press Ctrl-C to quit.
adminer_1   | PHP 7.3.7 Development Server started at Wed Aug 21 01:23:47 2019
adminer_1   | Listening on http://[::]:8080
adminer_1   | Document root is /var/www/html
adminer_1   | Press Ctrl-C to quit.
adminer_1   | PHP 7.3.7 Development Server started at Wed Aug 21 01:27:23 2019
adminer_1   | Listening on http://[::]:8080
adminer_1   | Document root is /var/www/html
adminer_1   | Press Ctrl-C to quit.
adminer_1   | PHP 7.3.7 Development Server started at Wed Aug 21 01:52:03 2019
scrubber_1  | Hosting environment: Development
scrubber_1  | Content root path: /app
scrubber_1  | Now listening on: https://[::]:443
scrubber_1  | Now listening on: http://[::]:80
scrubber_1  | Application started. Press Ctrl+C to shut down.

应用dockerFile.yml：

    version: '3.4'

docker
    networks:
      frontend:
      backend:

    services:
      db:
        image: postgres
        restart: always
        environment:
          POSTGRES_PASSWORD: <SomeStrongPassword>
          POSTGRES_DB: scrubber
          POSTGRES_USER: ajitgoel      
        networks:
          backend:

      adminer:
        image: adminer
        restart: always
        ports:
          - 8080:8080
        networks:
          backend:

      scrubber:
        image: ${DOCKER_REGISTRY-}scrubber
        environment:
          - ASPNETCORE_ENVIRONMENT=PRODUCTION  
        build:
          context: . 
          dockerfile: Dockerfile
        networks:
          frontend:
          backend:
        depends_on:
          - db

Answer 1

您不能使用其IP从主机访问容器。您需要映射主机上的公开端口。就像您已经为D3DX12.h做过的一样。

您的adminer服务应该已经在以下位置可用：adminer

要使其他容器可用，您需要将服务声明更改为此：

http://localhost:8080

然后通过scrubber: image: ${DOCKER_REGISTRY-}scrubber environment: - ASPNETCORE_ENVIRONMENT=PRODUCTION build: context: . dockerfile: Dockerfile networks: frontend: backend: depends_on: - db ports: - 8888:80 - 8443:443或http://localhost:8888访问该应用程序。

如果主机上的端口80和443空闲，则可以分别用80和443替换8888和8443。

在Docker中通过`ports`发布时无法访问端口80和443

1 个答案: