On 03.04.2015 [02:17:17 +0000], Britt Houser (bhouser) wrote: > I'm working on a RHEL7 docker container with cobbler in it. I have setup > cobbler in this container to manage dhcpd.
It seems like you're not configuring the containers correctly. Cobbler should run in one container and dhcpd should run in another, right? Dare I ask why you're doing this? :) > One hurdle with this setup is that a cobbler sync needs to restart > dhcpd, but a docker container has no systemd. So what I've done to > work around this is to edit > /usr/lib/python2.7/site-packages/cobbler/modules/sync_post_restart_services > .py and change the dhcp_restart_command to call a simple shell > script: > > -- > #!/bin/sh > > #dhcpd writes its pid to /var/run/dhcpd.pid > #kill the PID in the file, if the file exists > if [ -f "/var/run/dhcpd.pid" ] > then > kill `cat /var/run/dhcpd.pid` > fi > > #Start again using command line from /usr/lib/systemd/system/dhcpd.service > /usr/sbin/dhcpd -cf /etc/dhcp/dhcpd.conf -user dhcpd -group dhcpd > -- > > I do realize I'm not really supposed to have more than one process in a > container. But if I put dhcpd in its own container, the problem would just > be even harder b/c now cobbler in its container needs to restart another > container. No, it just needs to restart (reload) that process. Meaning dhcpd needs either graceful reload, or, as you said, you need to be able to restart the DHCP process itself. Containerization isn't free :) > So I took the easier route and put them in the same container. > So in this implementation, it would be useful if I could specify a custom > dhcp_restart_command in /etc/cobbler/settings. Would that be a change the > community would be interested in accepting? I think the right way is to provide another option to the [dhcp] module = manage_isc section of configuration, which is something like [dhcp] module = manage_local And configure that appropriately? I've done that, for instance, for having a local version of authentication. -Nish _______________________________________________ cobbler-devel mailing list cobbler-devel@lists.fedorahosted.org https://lists.fedorahosted.org/mailman/listinfo/cobbler-devel
