How to configure build-interval

You can configure how often the image will be built by specifying the build-interval configuration option.

BUILD_INTERVAL=3
OPENSTACK_AUTH_URL=<openstack-auth-url, e.g. http://my-openstack-deployment/openstack-keystone>
OPENSTACK_PASSWORD=<openstack project password>
OPENSTACK_PROJECT_DOMAIN_NAME=<openstack project domain name>
OPENSTACK_PROJECT_NAME=<openstack project name>
OPENSTACK_USER_DOMAIN_NAME=<openstack user domain name>
OPENSTACK_USERNAME=<openstack username>

juju deploy github-runner-image-builder \
--config build-interval=$BUILD_INTERVAL
--config openstack-auth-url=$OPENSTACK_AUTH_URL \
--config openstack-password=$OPENSTACK_PASSWORD \
--config openstack-project-domain-name=$OPENSTACK_PROJECT_DOMAIN_NAME \
--config openstack-project-name=$OPENSTACK_PROJECT_NAME \
--config openstack-user-domain-name=$OPENSTACK_USER_DOMAIN_NAME \
--config openstack-user-name=$OPENSTACK_USERNAME

The example above would build images every three hours, from the latest version of dependent sources (cloud-images, apt, snap, etc).