Execute command for starting oci container application

Incus
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1

I’m trying to start a Keycloak oci container. Running:
incus launch oci-docker:keycloak/keycloak:26.0.5 keycloak-1 --ephemeral -c environment.KC_BOOTSTRAP_ADMIN_USERNAME=<username> -c environment.KC_BOOTSTRAP_ADMIN_PASSWORD=<password>
works fine but it needs a command to start. Namely start-dev.

The docker equivalent is:
docker run -p 8080:8080 -e KC_BOOTSTRAP_ADMIN_USERNAME=admin -e KC_BOOTSTRAP_ADMIN_PASSWORD=admin quay.io/keycloak/keycloak:26.0.5 start-dev

Is there any way to send the start-dev command to the container at startup?

2

You can do it through raw.lxc=lxc.init.cmd=/path/to/init args.

Not exactly the cleanest thing ever but we still need to find a better way to handle those images that don’t have a functional daemon entrypoint out of the box.

1 Like
3

Thank you for your response! I didn’t really get it to work but I found the Bitnami Keycloak Docker image which has a CMD at the end of the Dockerfile and that worked fine.

4

For anyone looking, if you want to use incus launch with an OCI image, the proper config option is raw.lxc=lxc.execute.cmd=/path/to/command args (github issue). For example,

incus launch docker:mycontainer --console --ephemeral --config "raw.lxc=lxc.execute.cmd=/bin/bash"
5

Starting with Incus 6.11 we have oci.entrypoint instead.