Hi:
I’m new to Nomad and I’m trying to convert a docker-compose config into Nomad. I have some difficulties dealing with networking in Nomad and I’d really appreciate your help!
I have a docker-compose file looks like below:
In docker-compose I can create a network and the containers can ping to each other using container’s name. I’d like to achieve the same goal in Nomad. If I have 2 services from different group, how do I add them to the same network and allow them ping each other using service’s name? I read that I could use consul to query the service address, but it’s not what I want here…
If I have 2 services from different group, how do I add them to the same network and allow them ping each other using service’s name?
Hi @chaolunxu, the simple host-specific network model used by docker-compose doesn’t make sense in an environment with more than one node - which is what Nomad is made for. There cannot be a “job level network”, because each group specified in a job could end up running on a different machine entirely.
Luckily starting with Nomad v1.3 you no longer need Consul for basic service discovery, as Nomad now has support for service discovery built in.