http - Docker如何将请求(curl - get，post)一个容器发送到另一个容器

Question

GET(和 POST PUT ....)在一个容器中使用 curl 向另一个容器发出请求。

$ docker ps

CONTAINER ID    IMAGE      COMMAND       PORTS                                           NAMES
b184219cd8f6    otp_totp  "./run.sh"    0.0.0.0:3000->3000/tcp                           totp_api
c381c276593f    service   "/bin/sh -c"  0.0.0.0:8000->8000/tcp, 0.0.0.0:9000->9000/tcp   service
d0add6b1c72e    mysql     "/tmp/run.sh" 0.0.0.0:3306->3306/tcp                           mysql

当我在本地向 totp_api 容器 发送请求 curl -X GET http://localhost.3000 时

totp_api 返回 {'status':200}

但我想在 service 容器中发送请求

like//curl -X GET http://localhost:3000 到 service 中的 totp_api 容器(docker exec -it/bin/bash), totp_api 将返回 {'status':200} 到 server 容器

project_folder
             ㄴ- docker-compose.yml # service, mysql container
api_folder
         ㄴ- docker-compose.yml # totp_api container

请一些人告诉我一些建议

---

之后

api/folder/docker-compose.yml

version: '3'
services:
    totp:
        build: .
        container_name: totp_api
        volumes:
            - $PWD:/home
        ports:
            - "3000:3000"
        tty: true
        restart: always
        networks:
            - bridge

networks:
    bridge:
        driver: bridge

-

$ docker-compose up -d
$ docker network ls

NETWORK ID          NAME                DRIVER              SCOPE
4a05be5e600f        bridge              bridge              local
503d0586c7ec        host                host                local
########            ####
727bfc6cc21f        otp_bridge          bridge              local
########            ####
3c19d98d9ca5        otp_default         bridge              local

-

$ docker network inspect otp_bridge

[
    {
        "Name": "otp_bridge",
        "Id": "727bfc6cc21fd74f19eb7fe164582637cbad4c2d7e36620c1c0a1c51c0490d31",
        "Created": "2017-12-13T06:12:40.5070258Z",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
                "Driver": "default",
                "Options": null,
                "Config": [
                    {
                        "Subnet": "172.19.0.0/16",
                        "Gateway": "172.19.0.1"
                    }
                ]
            },
            "Internal": false,
            "Attachable": true,
            "Ingress": false,
            "ConfigFrom": {
                "Network": ""
            },
            "ConfigOnly": false,
            "Containers": {
        "02fa407062cdd5f6f368f2d17c5e68d2f9155d1d9b30c9edcbb2386a9ded648a": {
                "Name": "totp_api",
                "EndpointID": "860c47da1e70d304399b42917b927a8cc6717b86c6d1ee6f065229e33f496c2f",
                "MacAddress": "02:42:ac:13:00:02",
                "IPv4Address": "172.19.0.2/16",
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {
            "com.docker.compose.network": "bridge",
            "com.docker.compose.project": "otp"
        }
    }
]

Answer 1

使用 docker networking和 network commands ，您可以确保这些容器属于同一网络。

该唯一网络的副作用是容器 A 将知道容器 B 的名称:从 totp_api，您可以使用其名称 ping 或 curl service 容器:

ping service

你可以:

• 在 docker compose 文件中静态执行(并重新启动新容器)， - 在运行时对其进行测试，将现有的正在运行的容器添加到新网络中