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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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How to initialize host machine on GKE

I am using Kubernetes on Google Container Engine. I want to run an arbitrary script on each host machine when a cluster is created/resized to initialize its configuration. How can I achieve it?
Akihiro HARAI
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Linux Virtual Server: NAT return path

I'm trying to set up a LVS load balancer in front of my Kubernetes: Calico is used as container network, so every pod has its own network interface in it's host. External IPs, routes and routing rules are manager using keepalived. Every subnet…
Wienczny
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Deploying Kubernetes cluster on AWS

I'm currently trying to go through this tutorial: http://kubernetes.io/v1.1/docs/getting-started-guides/coreos/coreos_multinode_cluster.html As far as I know, I have AWSCLI set up and configured properly, and EC2 tools as well. I have gone through…
tparrott
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Access service on subdomain in Kubernetes

I have following setup: Private OpenStack Cloud - o̲n̲l̲y̲ Web UI (Horizon) is accessible (API is restricted but maybe I could get access) I have used CoreOS with a setup of one master and three nodes Resources are standardized (as default of…
x4k3p
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Kubernetes, flannel and exposing services

I have a kubernetes setup running nicely, but I can't seem to expose services externally. I'm thinking my networking is not set up correctly: kubernetes services addresses: --service-cluster-ip-range=172.16.0.1/16 flannel network config: etcdctl…
jaxxstorm
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Kubernetes cluster down

When running following command for cluster down in Kubernetes, I am getting following error: KUBERNETES_PROVIDER=ubuntu ./kube-down.sh rm: cannot remove…
maddy25
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Kubernetes service etcd références

If someone with quite good kubernetes's services understanding could confirm me that once you require a new service to be created kubernetes push a reference of it on the etcd database and what is the URL to request it would be wonderful!!!
Dr I
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Permission denied with Openshift PersistentStorage on GlusterFS

I'm trying to use OpenShift with PersistentStorage on a GusterFS cluster. I'm starting one of the default templates : mysql-persistent I've installed a GlusterFS cluster and create a volume gv_mysql_01 I've added the glusterfs endpoints in openshift…
mick
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Kubernetes Disable Grafana

We are using Kubernetes and successfully running our apps. However with our pods running and no traffic our minions are running with high CPU. Looking into the issue further: influxdb and heapster are running with high CPU, all of our containers…
four43
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Kubernetes - Specify env_file

We are using Kubernetes v1.1.0-beta and I am curious if Kubernetes supports env_file, like Docker Compose? On Pod/ReplicationController creation it would read in the file specified by env_file and set the variables on that pod. Is this a thing or…
four43
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Running kubernetes on OSX via Docker Toolbox

I'm trying to get Kubernetes running on OSX. I've downloaded and installed Docker Toolbox and have followed the instructions here. When I try to run kubectl get nodes I get the following error: error: couldn't read version from server: Get…
CooCooCaCha
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Network unreachable in Kubernetes containers

I'm attempting to setup an experimental kubernetes cluster to see whether it is worth it to migrate our current mesos cluster to kubernetes. Since we are providing our own CoreOS servers I'm attempting a bare metal intall. The problem is that the…
cdecker
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How iptables work when DNAT and REDIRECT are both set with the same rule?

$ iptables -t nat -L -n Chain KUBE-PORTALS-CONTAINER (1 references) target prot opt source destination … REDIRECT tcp -- 0.0.0.0/0 11.1.1.88 /* service-nginx */ tcp dpt:8001 redir ports 43318 Chain…
harryz
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Server utilization and how to deal with datacenter failure

New technologies like Docker, Mesos, Kubernetes etc. allow much better server utilisation in an organisation. However, I'd like to know how utilisation can be maximised across two datacenters, taking into account the failure of an entire…
Donovan Muller
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Kubernetes v1.24.3 upgrade broke ingress-nginx

After upgrading our AKS kubernetes cluster to from v1.23.8 to v1.24.3 our ingress stopped working properly. No errors logged in events and the ingress-nginx pod does not report any errors on the console. Everything looks fine from within the…
johnbt
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