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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 Share Volume With Code Files Between Two Containers In A Single Pod?

I created a GKE cluster and inside it I created single pod with 2 conatiners with this yaml settings. apiVersion: v1 kind: Pod metadata: name: django-nginx spec: restartPolicy: Never volumes: - name: universal emptyDir: {} …
Sollosa
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Firewall filter for subnet to allow access from Kubernetes pod?

I have an instance that is on an internal subnet 10.128.0.0/20 with IP 10.128.0.53. I have a kubernetes service defined as: mysql ExternalName 10.128.0.53 3306/TCP 151d However strangely, if I set a firewall rule…
Chris Stryczynski
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Making sense of Docker and Kubernetes memory usage

I'm running a small Kubernetes cluster with one master and two worker nodes. I'm trying to understand its memory usage and whether I've exhausted the resources... And if so, how I should detect that accurately. The nodes have 4 GB of memory each and…
kodbuse
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Kubernetes: open different service connections between pods

I´ve created two service connections (nodeports) at my pod storage for communicating with the pod app via port 8885 and 8881. I´ve read that I need to use matchselects on the app deployment with the same name, which I gave the nodeport. Can you…
ben
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K8S: a tunnel between a pod and a node

I need to deploy an application which works as a CCM (cloud controller manager), so it needs to have access to the master servers. I have a K8S cluster that has been set up by Kubespray, all my nodes are running kubelet that takes configuration from…
Volodymyr Melnyk
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HA kubernetes cluster health commands

I was wondering if it's possible to see which component is the primary service(scheduler,controller-manager, etc.) in a multi-master deployment. Is there any command to show that information? Thanks in advance.
gixnex
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Is there a way to determine to which etcd server the Kubernetes-apiserver is communicating with?

In the following scenario, is there a way to determine to which etcd server the Kubernetes-apiserver is communicating with?? Let's say we have 3 Master nodes with an external load balancer and 3 etcd's that are co-located in the same host with etcd…
Venkata Surya Lolla
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Can't access K8S cluster IP of Kind cluster running on macOS

I have created a K8S cluster on a macOS machine using kind. I have an echo-service running on that cluster that I can access on localhost when kubectl port-forward svc/echo-service 7893:7893 is running. I would have expected to be able to access…
Michael Böckling
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Kubernetes kube-dns not resolving

I am noticing an unusual high latency when trying to resolve local and external DNS lookups inside Kubernetes. nslookup requests are sometimes resolved but take on average 40 seconds to complete. These lookups are causing systems like Kafka and…
Jeroen Rinzema
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Kubernetes nifi application deployment with configuration management

I have deployed my Ni-Fi application using Kubernetes on-prem setup. Now the image which i am using to spin up the docker container is from docker private registry, which i can see when i deployed using Daemon sets service because my requirement is…
Ravikumar Subramanian
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Container orchestration that allows to orchestrate existing docker containers

I have been working with Docker for quite some time now and already have a production environment that started small but now has grown to more than 50 Linux nodes, each of those nodes running one Docker container. I have been orchestrating…
Tony
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Setup bridge for existing virtual birdge that minikube is running on

I managed to setup minikube on my system using kvm2 driver, and it seems to work. However i want to be able to launch the dashboard and access it externally, i.e. access it from another device within the network. I ran virsh net-dumpxml…
Aeseir
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Compaction error: Corruption: block checksum mismatch: expected 862584094, got 1969278739

Currently trying to handle this right on my 3-day memorial weekend :D Ceph 13.2.4 (Filestore) Rook 0.9 Kubernetes 1.14.1 https://gist.github.com/sfxworks/ce77473a93b96570af319120e74535ec My setup is a Kubernetes cluser with rook handling Ceph.…
sfxworks
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kubeconfig authorization expire, how to extend？

By billing account, i create a gke cluster where connecting cluster by kubectl in cloud shell vm. however, i download kubeconfig to my local, connection is ok at the beginning after that connection does not work.
user524784
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haproxy for k8s api server returns PR_END_OF_FILE_ERROR

I'm setting up haproxy for k8s api servers. The configuration for haproxy is: frontend k8s-https log /dev/log local0 debug option tcplog bind 0.0.0.0:8443 mode tcp default_backend k8s-https backend k8s-https mode tcp …
cgcgbcbc
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