Why might Canton started from a Dockerfile automatically end after it has finished starting?

Questions
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1

Hi all,

I’m trying to start up a little local Canton network through a dockerfile, with a very basic config and simple bootstrap file to upload the dar and create a few parties. I’ve now got Canton to start, but I get “Welcome to Canton!” immediately followed by “Bye!” and the container closes down!

Any advice would be greatly appreciated!

Thank you!

2

That sounds like you’re starting Canton in console mode and you’re not giving it a terminal (by passing -it to docker) so the console sees that the input is closed and dies.

For deployments like docker containers you usually want to pass daemon to Canton instead of starting it in console model.

3

Yeah, you’re on the right lines. I was running Canton with the “–no-tty” argument during debugging without fully realising the implications.

I removed “–no-tty” and ran the image by “docker run -t example-canton-app:Dockerfile” and now it’s fine.

Thanks!

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