【发布时间】：2020-01-03 09:23:55
【问题描述】：
概述
我正在使用一门课程来学习如何 Dockerize 我的 ASP.NET Core 应用程序。我尝试在配置中使用的令牌服务器存在网络问题。
ASP.NET Core Web 应用程序 (webmvc) 允许通过令牌服务器 (tokenserver) 进行授权。
用于服务的 docker-compose
令牌服务器
tokenserver:
build:
context: .\src\Services\TokenServiceApi
dockerfile: Dockerfile
image: shoes/token-service
environment:
- ASPNETCORE_ENVIRONMENT=ContainerDev
- MvcClient=http://localhost:5500
container_name: tokenserviceapi
ports:
- "5600:80"
networks:
- backend
- frontend
depends_on:
- mssqlserver
tokenserver 知道 webmvc 网址。
webmvc
webmvc:
build:
context: .\src\Web\WebMvc
dockerfile: Dockerfile
environment:
- ASPNETCORE_ENVIRONMENT=ContainerDev
- CatalogUrl=http://catalog
- IdentityUrl=http://10.0.75.1:5600
container_name: webfront
ports:
- "5500:80"
networks:
- frontend
depends_on:
- catalog
- tokenserver
运行容器确认webmvc 将尝试访问位于http://10.0.75.1:5600 的身份服务器。
通过在我的 Windows 机器上运行 ipconfig，我确认 DockerNAT 正在使用 10.0.75.1：
Ethernet adapter vEthernet (DockerNAT):
Connection-specific DNS Suffix . :
IPv4 Address. . . . . . . . . . . : 10.0.75.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
http://10.0.75.1:5600/ 从主机访问时不可访问，而 http://localhost:5600 可访问。
但是，我必须依赖 DockerNAT IP，因为 webmvc 必须从它自己的容器访问服务，而 localhost:5600 没有意义：
docker exec -it webfront bash
root@be382eb4608b:/app# curl -i -X GET http://10.0.75.1:5600
HTTP/1.1 404 Not Found
Date: Fri, 03 Jan 2020 08:55:48 GMT
Server: Kestrel
Content-Length: 0
root@be382eb4608b:/app# curl -i -X GET http://localhost:5600
curl: (7) Failed to connect to localhost port 5600: Connection refused
令牌服务容器检查（相关部分）
"HostConfig": {
"Binds": [],
....
"NetworkMode": "shoesoncontainers_backend",
"PortBindings": {
"80/tcp": [
{
"HostIp": "",
"HostPort": "5600"
}
]
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "6637a47944251a4dc59205dc6e03670bc4b03f8bf38a7be0dc11b72adf6a3afa",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"80/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "5600"
}
]
},
"SandboxKey": "/var/run/docker/netns/6637a4794425",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "",
"Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "",
"IPPrefixLen": 0,
"IPv6Gateway": "",
"MacAddress": "",
"Networks": {
"shoesoncontainers_backend": {
"IPAMConfig": null,
"Links": null,
"Aliases": [
"tokenserver",
"d31d9b5f4ec7"
],
"NetworkID": "a50a9cee66e6a65a2bb90a7035bae4d9716ce6858a17d5b22e147dfa8e33d686",
"EndpointID": "405b1beb5e20636bdf0d019b36494fd85ece86cfbb8c2d57283d64cc20e5d760",
"Gateway": "172.28.0.1",
"IPAddress": "172.28.0.4",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:1c:00:04",
"DriverOpts": null
},
"shoesoncontainers_frontend": {
"IPAMConfig": null,
"Links": null,
"Aliases": [
"tokenserver",
"d31d9b5f4ec7"
],
"NetworkID": "b7b3e8599cdae7027d0bc871858593f41fa9b938c13f906b4b29f8538f527ca0",
"EndpointID": "e702b29016b383b7d5872f8c55cad0f189d6f58f2631316cf0313f3df30331c0",
"Gateway": "172.29.0.1",
"IPAddress": "172.29.0.3",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:1d:00:03",
"DriverOpts": null
}
}
}
我还在高级安全的 Windows Defender 防火墙中为端口 5600 创建了入站规则。
问题：如何在 Windows 10 上通过 DockerNAT IP 地址访问 Docker 容器？
【问题讨论】：
-
为什么不用容器名作为主机名，
IdentityUrl=http://tokenserver？对于其他跨容器通信，您已经这样做了，这是正确的方法。 -
@DavidMaze - 这不是只能通过某种内部 DNS 在容器内识别吗？
IdentityUrl用于重定向（在开发环境中为主机浏览器）和允许其他容器化客户端访问它。
标签： docker docker-compose docker-for-windows docker-networking