service "electric-with-postgres" can't be used with extends as it declare depends_on

[AntonOfTheWoods]

PUPPETEER_SKIP_DOWNLOAD=true npx create-electric-app@latest ntcr --template react
cd ntcr && npx electric-sql start --with-postgres

Starting ElectricSQL sync service with PostgreSQL
Docker compose config: {
  SERVICE: 'http://localhost:5133',
...
  LOGICAL_PUBLISHER_HOST: 'electric'                                                                                                                          
}                                                                                                                                                             
service "electric-with-postgres" can't be used with `extends` as it declare `depends_on`                                                                      
Failed to start the Electric backend. Check the output from 'docker compose' above. If the error message mentions a port already being allocated or address be
ing already in use, please change the configuration to an alternative port via the ELECTRIC_HTTP_PORT or ELECTRIC_PG_PROXY_PORT environment variables.

Looks related to docker/compose#11544

[linear]

VAX-1705 service "electric-with-postgres" can't be used with `extends` as it declare `depends_on`

[AntonOfTheWoods]

I can confirm that this is definitely a bug and definitely the problem. Removing the depends allows everything to start as expected, and the current config is not valid docker compose config. It previously worked but no longer does with the most recent versions of compose released by Docker.

[samwillis]

@AntonOfTheWoods thanks for the report. Yep, we were using extends to overcome a limitation in configuring depends_on for different profiles. It looks like Docker have decided that that what we were doing is not valid even though it worked for us before. I've opened a PR #1025 to simplify our docker compose files with no inheritance.

[AntonOfTheWoods]

Yeah, apparently they are now actively checking for unsupported config options that used to work, but only by accident. Thanks for the fix!