Railway•14mo ago

"Already in use" error when deploying Scala play

Hi all, I'm trying to deploy an example Scala play application, I've gone through the nixpacks scala docs and have built the package like it said, then I included the 2 service variables as shown in the second screenshot. However I'm getting this "Already in use" error. Its my first time using railway so i just wanted to test it out. Please let me know if there is anything else I'm missing. Service id: 700352af-cb3a-4d49-aa93-b1e2a0dc62ee Thanks in advance

10 Replies

Percy•14mo ago

Project ID: 700352af-cb3a-4d49-aa93-b1e2a0dc62ee

Fragly•14mo ago

Smells like a bug, have you tried redeploying? you can do that by clicking on the 3 dots on the right of your deploy and clicking "redeploy"

ems_blooOP•14mo ago

Just tried redeploying but still getting the same issue

Fragly•14mo ago

You are using the port railway provides, right? (env.PORT) "?

ems_blooOP•14mo ago

Ah i had mine set up as PORT

ems_blooOP•14mo ago

The build is active and i've generated a domain but got "Application failed to respond"

Fragly•14mo ago

yea that normally happens when your application has a problem with its host and or port: https://docs.railway.app/troubleshoot/fixing-common-errors

ems_blooOP•14mo ago

Okay, at least its deployed now. I'll play with how I set the host and port env variables and see if I can get that figured out If i get it sorted out I'll post in here Thanks for the help @Fragly

Fragly•14mo ago

No problem, good luck

ems_blooOP•14mo ago

Managed to get it working by overriding the port in the start command in the settings deploy section ./target/universal/stage/bin/main -Dhttp.port=$PORT application.conf looks something like this

play{
  filters{
    hosts{
      allowed = [".railway.app"]
    }
  }
  http{
    secret{
      key="changeme"
      key=${?APPLICATION_SECRET}
    }
    server{
      http{
        port = ${?env.PORT}
        address = 0.0.0.0
      }
      https{
        port = ${?env.PORT}
        address = 0.0.0.0
      }
    }
  }
}

play{
  filters{
    hosts{
      allowed = [".railway.app"]
    }
  }
  http{
    secret{
      key="changeme"
      key=${?APPLICATION_SECRET}
    }
    server{
      http{
        port = ${?env.PORT}
        address = 0.0.0.0
      }
      https{
        port = ${?env.PORT}
        address = 0.0.0.0
      }
    }
  }
}

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"Already in use" error when deploying Scala play