[英]How to join the default bridge network with docker-compose v2?
I tried to setup an nginx-proxy container to access my other containers via subdomains on port 80 instead of special ports. 我尝试设置一个nginx-proxy容器,通过端口80上的子域而不是特殊端口访问我的其他容器。 As you can guess, I could not get it to work.
你可以猜到,我无法让它发挥作用。
I'm kind of new to docker itself and found that it's more comfortable for me to write docker-compose.yml
files so I don't have to constantly write long docker run ...
commands. 我对docker本身有点新意,发现编写
docker-compose.yml
文件对我来说更舒服,所以我不必经常写长docker run ...
命令。 I thought there's no difference in how you start the containers, either with docker
or docker-compose
. 我认为使用
docker
或docker-compose
启动容器的方式没有区别。 However, one difference I noticed is that starting the container with docker
does not create any new networks, but with docker-compose
there will be a xxx_default
network afterwards. 但是,我注意到的一个区别是,使用
docker
启动容器不会创建任何新网络,但是使用xxx_default
docker-compose
会有一个xxx_default
网络。
I read that containers on different networks cannot access each other and maybe that might be the reason why the nginx-proxy is not forwarding the requests to the other containers. 我读到不同网络上的容器无法互相访问,这可能是nginx-proxy没有将请求转发给其他容器的原因。 However, I was unable to find a way to configure my
docker-compose.yml
file to not create any new networks, but instead join the default bridge network like docker run
does. 但是,我无法找到一种方法来配置我
docker-compose.yml
文件以不创建任何新网络,而是加入默认的桥接网络,如docker run
does。
I tried the following, but it resulted in an error saying that I cannot join system networks like this: 我尝试了下面这个,但是它导致了一个错误,说我无法加入这样的系统网络:
networks:
default:
external:
name: bridge
I also tried network_mode: bridge
, but that didn't seem to make any difference. 我也尝试过
network_mode: bridge
,但这似乎没有任何区别。
How do I have to write the docker-compose.yml
file to not create a new network, or is that not possible at all? 如何编写
docker-compose.yml
文件以不创建新网络,或者根本不可能?
Bonus question: Are there any other differences between docker
and docker-compose
that I should know of? 奖金问题:我应该知道
docker
和docker-compose
之间是否还有其他差异?
Adding network_mode: bridge
to each service in your docker-compose.yml
will stop compose from creating a network. 将
network_mode: bridge
添加到docker-compose.yml
每个服务将停止创建网络。
If any service is not configured with this bridge (or host), a network will be created. 如果未使用此网桥(或主机)配置任何服务,则将创建网络。
Tested and confirmed with: 经测试并确认:
version: "2.1"
services:
app:
image: ubuntu:latest
network_mode: bridge
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