How to integrate this docker with an existing Symfony 3 project?

[jessybreyne]

I followed this page but without success : https://github.com/dunglas/symfony-docker/blob/main/docs/existing-project.md

I have an error after the docker-compose :

$ docker-compose build --no-cache --pull

Building php
Sending build context to Docker daemon  1.182GB
Error response from daemon: dockerfile parse error line 51: Unknown flag: link
ERROR: Service 'php' failed to build : Build failed

[maxhelias]

I think it's your docker engine that's a bit too old

[jessybreyne]

Docker version 20.10.16, build 20.10.16-0ubuntu1
docker-compose version 1.29.2, build unknown
Ubuntu 22.10. I have a recent configuration, no?

[maxhelias]

docker compose have version 2. And use docker compose without the - since the version 2.