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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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cannot write from mangodb pod to persistent volume

i'm trying to create a persistent mongo database with kubernetes here is my config persistent volume yaml file: kind: PersistentVolume apiVersion: v1 metadata: name: task-pv-volume labels: type: local spec: storageClassName:…
moses
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Getting error while auto provisioning of volumes for the mongodb statefulset on kubernetes

I am trying to create mongodb StatefulSet on Kubernetes. For auto provisioning of volume, i have created a StorageClass apiVersion: storage.k8s.io/v1 kind: StorageClass metadata: name: standard provisioner: kubernetes.io/gce-pd parameters: …
Pravin Gosavi
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Kubernetes : Inter-cluster networking

I am trying to set up inter-cluster communication between two k8s clusters (preferably using google's managed service, gke). Usecase(simplified):- Cluster A has client apps and cluster B has server apps. Communication has to be possible both ways.…
kronjob
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Does Kubernetes internally maintain tasks queue?

We are in the development phase. We are using Kubernetes cluster consisting of master and slave EC2 instances. We are submitting tasks to Kubernetes cluster using Kubernetes_Pod_Operator of Airflow. We are looking to scale this process. So we are…
Free Coder
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Concerns and strategies for enabling/disabling jmx and xdebug parameters for jvms in pods

I'm working on the code for one service that is part of a larger project. Most of the apps are Java REST services, all running in containers in pods. To debug what's happening in the JVM, it's convenient to add either or both of the typical JMX and…
David M. Karr
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Kubernetes (GKE) Deployment Update Strategy

Requirement: I want to use NFS share as persistent volume and update deployment by performing rolling updates (GKE). Problem: Persistent disk, volume and NFS share exist and are bound/mounted but when the app code is modified, pushed and built as an…
dzhi
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kube-dns fails open /var/run/secrets/kubernetes.io/serviceaccount/token: no such file or directory

I've managed to setup a 5 node cluster, 2 masters, 3 workers. using the "roll your own" instructions here: https://kubernetes.io/docs/getting-started-guides/scratch/#preparing-certs I can run pods np but dns is not functional. As per the…
GeoSword
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GKE Internal Server error

I'm new to the concept of containers and cloud. I was following through this Codelab. I've followed along very carefully to the last step but when I try to launch the app in the web browser, I receive this error:Internal Server error. Everything…
Pranay Nanda
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K8s & Docker - ideal image design for sensitive params on GCP

I'm working on a Docker image that bundles Apache with PHP7 and uses msmtp for Sendgrid integration. The reason I like msmtp is there is no separate running process so it bundles nicely without need for an SMTP container. That said, the…
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Kuberentes replicated pods exhibits deviated performances

I've a kubernetes deployments on GKE. I've set CPU request and limit to be the same ~700m. When i observe the performances of the pods consuming a single message queue (RabbitMQ), can confirm the messages have very little deviation between…
Nowa Concordia
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Growing XFS filesystem on AWS in Kubernetes

I have an EBS volume that originally was 1 Tb: # df -h | grep data /dev/xvdcl 1000G 54G 946G 6% /usr/share/elasticsearch/data I then grew it to 3 Tb via the AWS console. Now I want to grow the fs on that volume. First I check the mount…
monty0
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Zero Down Time deployment Node.js Docker

I have a React/Node.js application running on a single server using docker-compose. I'm trying to achieve a 0 downtime deployment for my react app. The process right now, does a webpack build (replaces the files in my dist folder) and then docker…
Hirad Roshandel
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Can Terraform providers be extended?

We use Kubernetes with some custom extensions. We'd like to extend terraform-provider-kubernetes to have custom resources. I can't seem to find any documentation or samples for this. Is this possible? Any pointers would be appreciated. Thanks in…
Austin Kelleher
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SSL cert for kubernetes Ingress for custom domain hosted by google domain

I have purchased a domain name from google domains. I setup a project with GCLOUD Kubernetes using Ingress. Documentation for ingress Ingress Github says to enter key here: apiVersion: v1 kind: Secret metadata: name: testsecret namespace:…
grabbag
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gcloud static ip assigned but I get 404 from the server. How can I debug it?

I'm using kubernet to deploy my application: Here's my service description: apiVersion: extensions/v1beta1 kind: Deployment metadata: name: flaskgql labels: name: flaskgql spec: replicas: 1 template: metadata: labels: …
Mr Bonjour
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