How to name/alias a network in Docker swarm Stack - docker-compose

Question

I would like to give an alias to my network in docker-swarm stack file.
Currently, the stack file looks like
version: '3'
networks:
mybridge:
services:
web:
restart: always
build: ./web
image: shivanand3939/web
expose:
- "8000"
volumes:
- ./output:/usr/src/app/static
command: /usr/local/bin/gunicorn -w 2 -b :8000 --access-logfile - classifierv2RestEndPoint_ridge_NB:create_app()
networks:
mybridge:
aliases:
- web
deploy:
replicas: 2
update_config:
parallelism: 2
delay: 10s
restart_policy:
condition: on-failure
nginx:
restart: always
build: ./nginx/
image: shivanand3939/nginx
ports:
- "80:80"
volumes:
- /www/static
networks:
- mybridge
deploy:
replicas: 1
update_config:
parallelism: 2
delay: 10s
restart_policy:
condition: on-failure
viz:
image: dockersamples/visualizer
ports:
- 8080:8080/tcp
volumes:
- /var/run/docker.sock:/var/run/docker.sock
deploy:
placement:
constraints: [node.role == manager]
when I run this file
docker stack deploy -c docker-stack.yml classifierbot
I get the following output
Creating network classifierbot_default
Creating network classifierbot_mybridge
Creating service classifierbot_viz
Creating service classifierbot_web
Creating service classifierbot_nginx
The network name is changed to classifierbot_mybridge from mybridge. Thus the 2 services nginx and web are not able to communicate among themselves.
So, my question is how can I give an alias to my network can also be referred as mybridge
Edit:
One way is add
networks:
mybridge:
external:
name: mybridge
and create mybridge outside the stack file but it defeats the purpose right? as I am unable to do everything in a single stack file

Answer 1

I am assuming by "alias" a network, you mean "give a service an alias" within a network. Because the alias of your network is given successfully. In your case, "mybridge".
Giving a service a network alias (what we usually think of as domain name) You are normally supposed to be able to do this in your services: block
nginx:
networks:
mybridge:
aliases: # https://github.com/moby/moby/issues/38066
- nginx
This is due to a bug that has not yet been resolved. There are tickets open for this:
https://github.com/moby/moby/issues/38066
https://github.com/moby/moby/issues/30313
For now, I use docker service to do this until it gets supported by the multi-service variant, docker stack up|deploy.
--hostname $SERVICE_NAME
--name $SERVICE_NAME