I am trying to install icinga2-ido-pgsql on an Ubuntu Docker container. My database is in a separate container. To install it I run
RUN apt-get install -q -y icinga2 icinga2-ido-pgsql
When installing icinga2-ido-pgsql it runs dbconfig-common which gives the prompt.
Configure database for icinga2-ido-pgsql with dbconfig-common? [yes/no]
Which then gives me a load of errors because it is defaulting to yes and I am not running an interactive terminal.
I want to say no, and do things manually but I don't know how to get this behaviour through my dockerfile
Use the following to tell whether apt packages should be prompting you or not:
DEBIAN_FRONTEND=noninteractive
So doing a RUN DEBIAN_FRONTEND=noninteractive apt-get install -q -y icinga2 icinga2-ido-pgsql should be running fine then.