On 11/22/2016 03:27 PM, Clayton Coleman wrote: > Copying Devan as well since he's been working with kubeadm for a while. > >> On Nov 22, 2016, at 5:25 PM, Jason Brooks <jbro...@redhat.com> wrote: >> >>> On Tue, Nov 22, 2016 at 2:38 PM, Daniel J Walsh <dwa...@redhat.com> wrote: >>> >>> >>>> On 11/22/2016 05:15 PM, Josh Berkus wrote: >>>> Currently, it is not possible to run Kubeadm with SELinux enabled. >>>> >>>> This is bad; it means that Kubernetes' official installation >>>> instructions include `setenforce 0`. But it's hard to argue the point >>>> when a kubeadm install -- soon to be the main install option for >>>> Kubernetes, and the only one which currently works on Atomic -- simply >>>> doesn't work with SELinux enabled. >>>> >>>> The current blocker is that kubeadm init will hang forever at this stage: >>>> >>>> <master/apiclient> created API client, waiting for the control plane to >>>> become ready >>>> >>>> >>>> The errors shown in the journal are here: >>>> >>>> https://gist.github.com/jberkus/4e926c76fbf772ffee4eb774cb0a4c60 >>>> >>>> That's on Fedora 25 Atomic. I've had the exact same experience on >>>> CentOS 7 and RHEL 7, although the error messages are not identical. >>>> >>>> Seems like this is on us to fix, if we want people to keep SELinux >>>> enforcing. I don;t know if we need to push patches to Kubeadm, or to >>>> SELinux, or both. >>>> >>> >>> What AVC's are you seeing? Where is the bugzilla for this? >>> >>> ausearch -m avc -ts recent >> >> https://paste.fedoraproject.org/488671/79856867/ >> >> This is from a kubeadm that's packaged up in a copr: >> https://copr.fedorainfracloud.org/coprs/jasonbrooks/kube-release/ >> >> The kubernetes project provides rpms for centos and ubuntu, and there >> are a few things about the way they pkg it that conflict w/ atomic. >> Some more info at >> https://jebpages.com/2016/11/01/installing-kubernetes-on-centos-atomic-host-with-kubeadm/. >>
In addition to this, please note that setenforce 0 is not required on the workers nodes, just on the master. The kubelet nodes work fine with just relabeling the /var/lib/kubelet directory. It would be really nice if we could somehow do that relabeling as part of the installation package, but I don't see how; it would need to be a patch/fork on kubeadm instead. -- -- Josh Berkus Project Atomic Red Hat OSAS
