[CentOS-devel] [opstools] fluentd packaging
Rich Megginson
rmeggins at redhat.comThu Aug 11 13:44:43 UTC 2016
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On 08/11/2016 07:36 AM, Lars Kellogg-Stedman wrote: > On Wed, Aug 10, 2016 at 07:27:45AM -0600, Rich Megginson wrote: >> On 08/09/2016 03:41 PM, Lars Kellogg-Stedman wrote: >>> In working with the fluentd packaging from the opstools sig, I think >>> we need to make at least two changes: >>> >>> - For type=tail sources, fluentd really wants a pos_file parameter to >>> track the file position. It would be helpful if we created >>> /run/fluentd via /etc/tmpfiles.d as a common location for storing >>> these files. >> +1 - as long as the location is configurable. OpenShift typically keeps its >> pos_file in the log directory (e.g. /var/log) that is mounted from the host. > I don't know about configureable. I mean, I am proposing that the > package drops a file into /etc/tmpfiles.d, which would make it a > system-wide default, although of course individual <source> blocks > could use whatever path they wish. > > As the package is distributed, with fluentd running as an unprivileged > user, it's not going to have write access to most log directories, so > putting the pos files there won't work in most cases without changes > to directory permissions. > > If everyone is colocating pos files with log files, this proposal > doesn't seem all that useful. For now, I'm probably going to tackle > this in a puppet module that is consuming fluentd, rather than the > package itself. OpenShift runs fluentd in a privileged pod (for now - soon to be a hostmount-anyuid once the selinux issues are fixed) and bind mounts /var/log, /var/lib/docker (for docker --log-driver=json-file), and /run/log (for docker --log-driver=journald) from the host into the pod/container. It has to keep the pos file outside of the container/pod in the host file system, typically /var/log/*.pos. As long as that is possible with the proposed opstools fluentd packaging, that's fine. > > > > _______________________________________________ > CentOS-devel mailing list > CentOS-devel at centos.org > https://lists.centos.org/mailman/listinfo/centos-devel -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-devel/attachments/20160811/be61b689/attachment-0004.html>
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