Hi I have a question on the DockerRunLauncher This may have

Question

Hi I have a question on the DockerRunLauncher This may have been asked before but Slack doesn t show messages older than 90 days Specifically I use a host for Dagit and another for the user code server If I use DockerRunLauncher to execute jobs are the containers created on the Dagit host or the user code host It wasn t very clear in the documentation <https docs dagster io deployment guides docker> I assume it is the user code server but just want to confirm Thank you

daniel · Answer

Hi Jing are you running the dagster daemon in a container as well

daniel · Answer

<https docs dagster io deployment guides docker multi container docker deployment> lays out when you would have one if you have a run queue set up on your daemon every run will be launched using the daemon container on the same machine where that container is running If you don t have a run queue then runs kicked off manually from dagit will be launched from the dagit container but other runs schedules and sensors will be launched from the daemon container

Jing Zhang · Answer

Thanks Daniel Sounds like I need 3 host one for dagit one for the daemon with a queue and one for the user code vm In this case all the job containers are created on the daemon host

daniel · Answer

I would expect them to also work on a single host too the daemon in particular doesn t need to run as a server

daniel · Answer

It ll either be on the daemon machine or the dagit machine my comment just above lays out the different cases