Crontab is used to start apmia-ca-installer.sh on reboot.
This can be achieved using force_start option (see TEC DOC
Indeed it is safe in terms of functionality. Our Openshfit/Kubernetes/DockerMonitor – all of them run with this option only, we do not use Crontab inside the container. )
By the way, below is our official image for APM IA. We would suggest customers to use this as base image in case they want to run APM IA.
Customers should be able to configure any extension from this image https://hub.docker.com/r/caapm/apmia/