f89ef06b-231c-4edf-a893-25cbf3c4902b

is that an alpine based image?

I think it's based on debian

please add a 3 second sleep / delay before you connect to the database

I tried it but it still has the same problem, in fact, minutes after the deployment I tried to execute:
railway run sh -c "ping mysql.railway.internal"

but I get:
"ping: cannot resolve mysql.railway.internal: Unknown host"

railway run runs the given command locally

Oh, i'm adding the sleep in my Dockerfile.

please show me how you are implementing the sleep

looks good

I don't have the host resolution issue, but apparently there is a restriction for a query in the migration:

SQLSTATE[HY000] [2002] Connection refused (Connection: mysql, SQL: select tablename as name, (datalength + indexlength) as size, tablecommentas comment, engine as engine, tablecollation as collation from informationschema.tables where tableschema = 'forge' and tabletype in ('BASETABLE', 'SYSTEM VERSIONED') order by table_name)

is your database in the same project as this app?

Yeah.

railway does not place any such restrictions on the databases besides the amount of resources it can use (cpu / mem /disk based on your plan type)

are these logs coming from the build or deploy logs

Deply logs

Are the env vars availables in build stage?

yes but the private network is not

It just worked, I moved the "php artisan optimize" command which caches the configuration (includes the DB credentials) and maybe it was pointing to a non-existent database at the execution stage.

This is the final configuration.

awsome

How can we mark this as solved?

already have