Hi Alex, I was able to get past that by enabling hostDir for the service account, I also had to set privileged: true in the security context so it could access the cgroups mounts etc. The next issue I hit was it tries to access cAdvisor via a non secure port instead of via the kubelet stats api.
I also had to mount kubelet certs into a volume so that they could be used to talk to kubelet over SSL. I contacted their support about the cAdvisor issue, they responded with its currently in their backlog. On 18 May 2017 at 13:16, Alex Creek <therealcree...@gmail.com> wrote: > +1 for protips on getting datadog to monitor openshift > > > > I wasn’t able to get the datadog agent working with 1.4. I tried both of > their out-of-the-box solutions for the k8s integration and no dice. Have > yet to deep dive and investigate. > > > > The initial problem I ran into was their pre-baked monitoring daemonSet > used hostPath volumes and I didn’t have them enabled. Once I did enable > them the entire container filesystem was readonly and the datadog agent > fell over when it tried to write to disk :\ I tried the other solution > running the agent via docker cli and the container starts and appears to be > working but no metrics are collected. > > > > > > Alex > > > > > > *From: *<users-boun...@lists.openshift.redhat.com> on behalf of David > Conde <da...@donedeal.ie> > *Date: *Thursday, May 18, 2017 at 6:24 AM > *To: *Jay Vyas <jv...@redhat.com> > *Cc: *users <firstname.lastname@example.org> > *Subject: *Re: Kubelet & Cadvisor > > > > Thanks Jay, > > > > I contacted DataDog and they have said it is a known issue for them which > they expect to have fixed in a few months. > > > > Can anyone point me at a guide for a good setup for monitoring and > alerting when using Openshift? I have looked at DataDog but it looks like > there is an outstanding bug in the k8s integration which prevents it > working with Openshift installs. I also installed hawkular but it looks > like there is no UI to configure alerts in place yet. > > > > Would anyone be willing to share their experience? > > > > Thanks, > > Dave > > > > > > > On 17 May 2017 at 13:23, Jay Vyas <jv...@redhat.com> wrote: > > > > On May 17, 2017, at 7:37 AM, David Conde <da...@donedeal.ie> wrote: > > Hi, > > > > I am trying to get the DataDog agent working with k8s integration. I'm > hitting an issue around cadvisor not being available. I have read that > cadvisor is available via kubelet as long as I'm using certs to access it. > > > > Does anyone know what the equivalent of the 2 URLs below are when trying > to access via kubelet? > > > - /api/v1.3/machine/ > - /api/v1.3/subcontainers/ > > > > > > In general I don't think there is anything wrong with accessing cadvisor > directly, except that I believe cadvisor isn't exposed from kubelets.... So > i think, /stats/summary in the kubelet will externalize some of the > cadvisor metrics you want. > > > > The thread below describes the idea behind stats as a cadvisor wrapper > > https://groups.google.com/forum/m/#!topic/kubernetes-sig-node/txBjT8-WvM0 > > > > Thanks, > > Dave > > _______________________________________________ > users mailing list > email@example.com > http://lists.openshift.redhat.com/openshiftmm/listinfo/users > > > > _______________________________________________ users mailing list > firstname.lastname@example.org http://lists.openshift.redhat. > com/openshiftmm/listinfo/users >
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