prefect server stop

[tekumara]

Current behavior

There doesn't appear to be a way to stop the prefect server and all its containers.

Proposed behavior

prefect server stop will stop all containers.

[cicdw]

Hi @tekumara - you can gracefully stop all containers with a SIGINT signal (e.g., CTRL+C).

Because prefect server start is a blocking command with a graceful shutdown mode, I don't think there's a benefit to adding a new CLI endpoint for stopping the containers independently of this.

[tekumara]

I've hung up on the original terminal session that started prefect, and so now don't know how to shut the server containers down.

[znicholasbrown]

Hi @tekumara - since all of the services run with Docker, you can run docker ps to get a list of your running containers and then docker kill ${container-id} for each of the containers you'd like to shut down. If you've used something like nohup to redirect output, you can instead use ps aux | grep prefect to get the PID of the prefect process and run kill ${PID}. I hope that helps!

[tekumara]

The prefect process doesn't exist anymore. The hang up occurred when I upgraded macOS. When my machine rebooted, Docker Desktop started the containers again.

I killed the 6 containers using docker kill. The prefect-server docker network was left behind. So I reran prefect server start and then hit CTRL-C which removed the network. A little complicated but it worked, thanks!

[chrisgervang]

Manually doing this work to clean up a prefect session isn't ideal since I switch between projects. I use prefect server start >> server.log 2>&1 & to run in the background. Can prefect provide a clean-up command as proposed?