I have 2 images that I want to talk to each other via compose's default bridge network, but I also want them to be able to access my host network.
To allow images to talk to each other within compose's default bridge network, I don't need to do anything:
version: '3.4'
services:
hello:
image: hello-world
world:
image: hello-world
With the above spec, hello service could reference world service by using the DNS name world
If I wanted hello service to be able to interact with my host machine's network, I could add network_mode: host to the spec.
version: '3.4'
services:
hello:
image: hello-world
network_mode: host
world:
image: hello-world
This allows hello service to access my host machine's network, but can no longer access world via compose's built in DNS. How can I accomplish both?
I've tried creating a custom network, but custom networks can't use the host driver and I cannot use network_mode in combination with networks:
This doesn't work:
version: '3.4'
services:
hello:
image: hello-world
network_mode: host
networks:
- bridge
world:
image: hello-world
networks:
- bridge
networks:
test:
driver: bridge
$ docker-compose up
ERROR: 'network_mode' and 'networks' cannot be combined
