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Questions tagged [kubernetes]

Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions. Using the concepts of "labels" and "pods", it groups the containers which make up an application into logical units for easy management and discovery.

Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions. Using the concepts of "labels" and "pods", it groups the containers which make up an application into logical units for easy management and discovery.

For more details, visit the official Kubernetes page.

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Container Engine/Kubernetes DNS to external

I want to let my containers on Google Container Engine point to a static IP outside of my Container Engine cluster (namely my db). Is it possible for me to prevent the use of an /etc/hosts file or a self managed bind server, and use Google Cloud DNS…
ZvL
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Error from kubectl with google cloud container engine

I have installed the Google Cloud tools on my Linux box as described here with: curl https://sdk.cloud.google.com | sudo bash sudo gcloud init sudo gcloud components install kubectl beta So far so good. However when I run kubectl I get the error $…
Adrian Smith
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kubelet service with etcd2-tls can't connect to 127.0.0.1:8080 - getsockopt: connection refused

I have CoreOS stable v1122.2.0 installed. I have etcd2 configured with tls and is working properly. i created the certificates based on https://github.com/coreos/etcd/tree/master/hack/tls-setup using sub-domains that I created for my servers…
ufk
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unregister_netdevice: waiting for vethd8a9cb4 to become free (vethd8a9cb4 does not exist)

I'm currently experimenting with kubernetes and docker on my laptop, and I've run into an issue where I'll try start hyperkube on my computer, and it'll take forever to start (or it'll start, but I'll be unable to start containers within it), and my…
maths
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Kubernetes on GCE randomly stops working

So ultimately what will happen, is everything will work fine, sometimes for days. However, once in a while when I do a deployment of my code (all contained within it's own Docker container, with the images stored on Dockerhub) it will cause…
Kenyon
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kubelet not able to update node status

kubernetes node status reports as below. root@csp-nso-server78:~# kubectl get nodes 10.213.5.78 NAME STATUS AGE 10.213.5.78 NotReady 1h The kubelet logs show below error E0812 11:00:31.626169 10488 kubelet.go:2745] Error updating…
Akilesh
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Change KUBE_MAX_PD_VOLS env var in master GKE

I have a cluster on GKE with many pods and persistent disks (PD) and cannot deploy anymore. pod failed to fit in any node fit failure on node (XX): MaxVolumeCount The issue should not affect me because I have a 2-code machine and Google recently…
Pau Ruŀlan Ferragut
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Connect from MySQL client in one container to MySQL server in other container of same pod

I run two containers in a pod: one is based on debian:wheezy, the other one is mysql:5.6. When I log into the 2nd container, I can invoke the MySQL client mysql without problems. When I log into the 1st container and invoke the MySQL client mysql…
Drux
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New Jenkins instance running on kubernetes in google cloud; Setting up security through Jenkins breaks it

I set up a new instance of Jenkins in the gcloud via these instructions: https://github.com/GoogleCloudPlatform/kube-jenkins-imager#quick-deploy I followed the details to get SSL set up using a based64'ed .htaccess file. Upon running cluster-up.sh,…
Cognitiaclaeves
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etcd & kubernetes: No connection possible to etcd instance

currently I am following the k8s guide "from scratch" (found here: LINK, up to this point everything seems pretty clear, though I start without doing all that certificate stuff. I started kubelet on master and added the etcd.manifest file found…
Jannick
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OpenShift Origin asks for credentials

I had a cluster OpenShift with a master and a node. Today, it doesn't work anymore, OpenShift continously asks me the credentials, the following is the command and the output: [root@openshift-master ~]# openshift start master…
DarkSkull
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OpenShift node not connecting to image registry

I configured openshift and everything is working properly on host where docker-register is started. When i added new node and i try to deploy containers on it i have such error in logs: E0519 10:51:38.574152 2135 pod_workers.go:138] Error syncing…
user3069488
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Old pod not deleted after rolling-update

I've run into a problem doing a rolling-update of our website, which runs in a container in a pod on our cluster, called website-cluster. The cluster contains two pods. One pod has a container which runs our production website and the other has a…
Roland Sing
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Why is apache writing two access log outputs per request?

We are currently running a apache2/mod-php site on docker, deployed to google kubernetes. In order to leverage the severity level filtering of google cloud logging I've created a LogFormat in our apache.conf that writes the logs output as structured…
Eric Uldall
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Cassandra 3.x on Kubernetes 1.2-release (5 cassandra nodes)

Has anyone been able to get cassandra 3.x running on kubernetes? cassandra 2.1.13 runs great but 3.3 is have trouble talking to other cassandra nodes. My yamls are the same except for the container. I just upgraded…
user2363318
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