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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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Multiple server backups using kubernetes and rsnapshot

I am looking to setup multiple backups, from multiple servers in different geographical locations at different times using something like a docker/rsnapshot and kubernetes (master + a couple nodes at least). I am pretty familiar with the general…
Op4
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Elasticsearch docker container unable to curl outside container

Launching a container using docker run -it -p 9200:9200 -p 9300:9300 elasticsearch /local/elasticsearch/bin/elasticsearch: line 184: hostname: command not found [2018-01-31T07:13:47,062][INFO ][o.e.n.Node ] [] initializing…
Shuaib Shaikh
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Docker/Kubernetes change volume data without restarting container

We have application which is using some additional files from one catalog. Right now when some of this file is changed we need to log in to each application container clone repository and copy files to catalog. We want to automate this process…
user3069488
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How to expose services running on minikube installed in the vagrant box?

Infrastructure: +------------------------------------------------------+ | Host | | +-----------------------------------+ | | | Vagrant box | | | …
NarūnasK
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Error deploying neo4j cluster on Kubernetes namespace

I am trying to install neo4j on kubernetes using Helm to a separate namespace and cluster startup is failing with the below error. But the same install into default namespace is working fine. Anyone else experienced same issue? 2018-01-04…
rvarghese
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Migrate docker microservices from OVH to AWS with Rancher?

I've got a bunch of microservices (docker) which I need to transfer/migrate from OVH to AWS. They're orchestrated by Rancher. What's the best/easiest way to accomplish that? Also, I planned to use Kubernetes in the future. Should I somehow use it…
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Where are Kubernetes' pods logfiles?

When I run $ kubectl logs I get the logs of my pods. But where are the files for those logs? Some sources says /var/log/containers/ others says /var/lib/docker/containers/ but I couldn't find my actual application's or pod's log.
gcstr
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Using private image to start kube-proxy

I need to run kubernetes cluster using private images. I started with config generated by kubeadm init (I'm a newbie to kubernetes) and modified .yaml files to use my own images. When kubelet starts it runs rest of the services. It works fine but…
mati865
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With supervisord, is it possible to run a process without intercepting stdout?

I have a docker image running supervisord in a kubernetes pod. I would like the output of processes running via supervisord to appear in the k8s logs. It seems that the simplest way to do that is to have the subprocesses write directly to…
William Pursell
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Rabbitmq running out of memory due to "Processes / other"

I am running rabbitmq within kubernetes using the rabbitmq:3.6.11-management docker image (https://hub.docker.com/_/rabbitmq/). Looking at the management dashboard, there seems to be a lot of memory being used by the "Processes / other" category…
JBBreeman
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kops kubernetes dashboard not working

Have created a kops kubernetes cluster Installed dashboard using: kubectl create -f https://raw.githubusercontent.com/kubernetes/kops/master/addons/kubernetes-dashboard/v1.6.3.yaml Versions kubectl version gives: Client Version:…
Greg Pagendam-Turner
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Kubernetes ImagePullBackOff caused by no space left on device

I have this weird error on my Kubernetes test cluster. I'm running Kubernetes 1.7.0 and docker Docker version 1.12.6, build 78d1802 I have a separate volume mounted as /dockerdata and symlinked /var/lib/docker into this volume. I have ample space…
Trondh
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How to allow routing into Kubernetes IP addresses only accessable via iptables rules?

I have set up a working Kubernetes cluster using Rancher which defines two networks: 10.42.0.0/16 for pod ip addresses 10.43.0.0./16 for service endpoints I want to use my existing Caddy reverse proxy to access those service endpoints, so I…
arturh
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Horizontal autoscaling rails on GKE - specifically - web server choices and differences with conventional deployments

Here's a great writeup on scaling with heroku (and it applies to traditional deployments). Given that we want containerized applications to be single process, how do we get: slow client protection slow response protection in a Kubernetes/GKE…
kross
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Kubernetes: how to deploy new version of container via Deployment keeping mount storage?

I run small Kubernetes cluster in Azure, so can use abstracts provided by Azure (like storage etc). On it, I have a Deployment object defined in a file that includes one pod and several containers in it: an application container, mongodb container…
Alexander Chekalin
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