Openwhisk: [Question] How to make docker container standby

[antengj]

Hi guys.
Thanks for your nice product.
I found when the openwhisk start, there only one nodejs container standby.
How to make other run env container standby as default and can make more then one standby like a pool?
Otherwise, there's lot's of time spend to pull images and start container.
Thanks.

[ningyougang]

Hm.. you mean prewarm container?

if that, when openwhisk starts, system will start several prewarm container according to the runtimes.json,
you can modify the runtimes.json to adjust the prewarm container.

[antengj]

Hm.. you mean prewarm container?

if that, when openwhisk starts, system will start several prewarm container according to the runtimes.json,
you can modify the runtimes.json to adjust the prewarm container.

Yes, that what I wanted. Thank you so much.
Is there any documents about this ? I want to know where is this file, how to set this file, and how to start openwhisk with this file.
Thanks.

[ningyougang]

Seems no document for it.

Just modify the openwhisk/ansible/files/runtimes.json and redeploy the invoker component, in ContainerPool.scala, it will read the runtimes.json and create the prewarm containers(e.g. nodejs, java. python etc).

You can deploy the openwhisk using ansible.

BTW, currently, didn't support adjust the prewarm containers in flying, must adjust the prewarm containers via deploy with the new runtimes.json.
In future, we may support it.

[antengj]

Seems no document for it.

Just modify the openwhisk/ansible/files/runtimes.json and redeploy the invoker component, in ContainerPool.scala, it will read the runtimes.json and create the prewarm containers(e.g. nodejs, java. python etc).

You can deploy the openwhisk using ansible.

BTW, currently, didn't support adjust the prewarm containers in flying, must adjust the prewarm containers via deploy with the new runtimes.json.
In future, we may support it.

It worked.
Thank you so much!