设置docker固定IP时出错: network> <container>使用未定义的网络<现有docker
设置docker固定IP时出错: network> <container>使用未定义的网络<现有docker
提问于 2021-01-26 03:16:06
我有一个容器，我想有一个固定的IP。
我的相关设置(docker-compose)如下：
version: '3'
networks:
default:
external:
name: srv
services:
caddy:
image: caddy
container_name: caddy
volumes:
- /etc/docker/data/caddy/Caddyfile:/etc/caddy/Caddyfile
- /etc/docker/data/caddy/data:/data
- /etc/docker/data/caddy/config:/config
ports:
- 80:80
- 443:443
- 2015:2015
environment:
- ACME_AGREE=true
restart: unless-stopped
# networks:
# srv:
# ipv4_address: 172.19.0.254当最后几行被注释掉时，一切都很好。当我取消对它们的注释时，重新启动caddy容器会产生错误
ERROR: Service "caddy" uses an undefined network "srv"在caddy容器正确运行时对其进行检查：
~ # docker inspect caddy
[
{
"Id": "37904d87c82c4612f48bcc9952b6505d871a816336c6b242b4ab3fae51cbfa95",
"Created": "2021-01-25T18:27:29.686179872Z",
"Path": "caddy",
(...)
"NetworkSettings": {
"Bridge": "",
"SandboxID": "1a4360ebfe25eff6dffec0f9ec049389da6e53e84eaf76db23bf6028868b31f3",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"2015/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "2015"
}
],
"2019/tcp": null,
"443/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "443"
}
],
"80/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "80"
}
]
},
"SandboxKey": "/var/run/docker/netns/1a4360ebfe25",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "",
"Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "",
"IPPrefixLen": 0,
"IPv6Gateway": "",
"MacAddress": "",
"Networks": {
"srv": {
"IPAMConfig": null,
"Links": null,
"Aliases": [
"caddy",
"37904d87c82c"
],
"NetworkID": "36b7471fa0f16a74531b011ce6762cf66a802fda7622d70d66b6fb130a2398ea",
"EndpointID": "8dea6be732eda01a9b4d6cc0a26df2eca8a6df1a6f6d7a961fb46820a6ef9d58",
"Gateway": "172.19.0.1",
"IPAddress": "172.19.0.8",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:13:00:08",
"DriverOpts": null
}
}
}
}
]如何强制容器使用固定IP？
注意:一个标题类似的问题(ERROR: Service "xxx" uses an undefined network "xxx")解决了缺乏网络定义的问题(不是我的情况)
回答 2
Stack Overflow用户
发布于 2021-01-26 03:46:24
当你说在顶层
networks:
default: { ... }然后，当您在每个服务配置中显式引用该网络时，它需要使用匹配的组合名称default
networks:
# vvv the name of the top-level `networks:` item
# (probably different from the `docker network create` name)
default:
ipv4_address: 172.19.0.254网络的“真实”Docker名称在这里并不重要；在组合文件中，您总是在顶级networks:块下使用该名称。
(显式设置容器的私有IPv4地址有点不寻常，通常不需要这样做。如果您没有每个服务的networks:，它将默认连接到default网络，即使您已经在顶层手动重新配置了该网络。)
Stack Overflow用户
发布于 2021-01-26 03:46:06
caddy服务不使用网络的外部名称，而只是看到default。尝试更新网络定义：
networks:
srv:
external: true检查Compose file version 3 reference
您还可以指定网络的名称，将其与合成文件中用于引用网络的名称分开：
version: "3.9"
networks:
outside:
external:
name: actual-name-of-network页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/65891031
复制相关文章
相似问题
腾讯云开发者
