Hello everyone,

 

I want my containers to communicate between each other via hostnames.

 

• Do I have to set the --hostname parameter on every container manually, or is there a default hostname?
• Is this possible in the standard Bridge network unraid creates, or do i need to create a custom network?

 

So far I tried using the container names as hostname which did not work out. But communication between containers using the internal 172.17.0.0/16 address obviously works.

 

I need a hint in the right direction, how is this supposed to work?

you have to use a custom network for your containers to reach each other via hostname

docker network create --subnet 172.20.0.0/16 mysupercooldockernetwork

 

now it works.

Edited February 7, 20242 yr by Greyberry

If you delete and recreate your docker image for any reason, remember to recreate any custom networks before you reinstall your containers with the previous apps function.

Thanks. I will note that.

Edited February 19, 20242 yr by Greyberry