phoenix detach in gitlabci

Phoenix Forum Questions / Help
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1

somebody run phoenix used detached mode in gitlab ci ?
i tryed to run command below and my stage hang

elixir --erl "-detached" -e "File.write! 'tmp/phoenix.pid', :os.getpid" -S mix phx.server

cant uderstand wtf… what i doing wrong ?? why stage hanged, why in bash all work how expected.

Iam not use docker, all run in centos shell without virtualization.

2

build_phoenix_gateway:
stage: build_phoenix_gateway
extends: .default_options
script:
- cd ${GW_ROOT}
- elixir --erl “-detached” -e “File.write! ‘tmp/phoenix.pid’, :os.getpid” -S mix phx.server

example my stage