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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 do you configure a Redis pod for use as a session datastore for ColdFusion within a kubernetes deployment?

We are considering moving our ColdFusion servers to AKS, and have been messing around with a test deployment to see how things work. To handle scaling of the CF servers we would like to setup a Redis pod to handle session management for the CF…
Nicholas
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How to setup route? wget: can't connect to remote host (10.102.29.45): No route to host

After kubectl run -i -t load-generator --image=busybox /bin/sh From my shell,I am trying / # wget http://wordpress.default.svc.cluster.local Connecting to wordpress.default.svc.cluster.local (10.102.29.45:80) wget: can't connect to remote host…
MikiBelavista
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HTTP/2 for ALB with EKS on AWS

I'm experimenting with AWS EKS and have created the following setup: EKS cluster with a single service/pod/node AWS ALB ingress controller ALB I try to configure the ALB to: create access logs provide HTTP/2 support My alb ingress controller…
chrisvdb
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Netstat and ss doesn't see connection

I'm trying to find which application running on Kubernetes cluster is using a specific port to communicate with RabbitMQ cluster. On RabbitMQ I see that connection is coming from 192.168.1.10:34226. 192.168.1.10 is one of Kubernetes nodes. After…
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Having kube-dns scheduled on tainted nodes in GCP

I have a GKE cluster with two node pools. One of those is a tainted node pools for use by specific pods. After adding the tainted node pool, I realised that Kubernetes was trying to schedule a kube-dns pod on the nodes of the pool, but…
Victor Noël
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OpenShift Master not starting - assetConfig.servingInfo invalid value “”

I've installed OpenShift Enterprise 3.2 on a RHEL 7 system using the official advanced documentation using this template. My installation currently consists of 2 machines: a master and a node. I ran the ansible playbook with the following…
MiH
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how to get kubernetes to mount ext4 volumes over iscsi in journaled mode instead of ordered

I'm running kubernetes on Ubuntu 18.04.1, running some of my pods with mounts via ISCSI. I've noticed recently (maybe due to improperly unmounting the iscsi volume or for other reasons) that at least one of the iscsi extents (ext4 fs) is sometimes…
Evan R.
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How to expose a web service, running as pod in K8s cluster which is deployed on ec2 instance, to external

I have deployed kubernetes cluster (with only one Node as master) onto a ec2 instance. After this, I created a nginx deployment and exposed the service using "Type" as NodePort. The nginx service is available on ec2 privateIP:31336 and also able to…
rufus
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Kubernetes nginx-ingress load balancer external IP pending

In my Kubernetes cluster I want to bind a nginx load balancer to the external IP of a node. However, the external IP is always shown as "pending". The cluster runs on two root-servers using weave. Is there anything I can do to fix this? Using the…
Johannes Mittendorfer
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What makes a kubernetes node unhealthy?

We've experienced 4 AUTO_REPAIR_NODES events(revealed by the command gcloud container operations list) on our GKE cluster during the past 1 month. The consequence of node-auto-repair is that the node gets recreated and gets attached a new external…
twimo
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Helm reset resources into known-good state

We're starting to manage Kubernetes resources with Helm, and we have some users who are used to managing resources with kubectl edit. We'd like Helm to sanitize the deployed resources every time it's run, bringing them back into a known-good…
spiffytech
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uWSGI and NGINX 502: upstream prematurely closed connection

I have a Kubernetes cluster which is running Django application within docker container served by uWSGI. The ingress controller is ingress-nginx (this one: https://github.com/kubernetes/ingress-nginx). Recently I did an upgrade of the whole…
Djent
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php memory_limit vs kubernetes resource memory limit

I'm new to Kubernetes and I'm trying to figure out what resource limits I should set for my php webapp. My first guess is that if I have configured php fpm to use a maximum of 256M of memory then should I configure kubernetes to limit to 256M as…
Tom
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kubectl top is trying to connect to heapster instead of metrcis server

According to readme in heapster repo, the project is now deprecated. The current recommended solution is to use the metrics server which acorrding to documentation can be accessed by using kubectl top. I have deployed it on my bare-metal CentOs…
Djent
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How to enable IAP for k8s on GCP?

Aim: to enable Identity Aware Proxy (IAP) in conjunction with Kubernetes (k8s). Methods: Two apps were deployed A SSL load balancer was put in front When one navigates to domain/app1, app1 is shown This tutorial was followed to enable IAP for k8s…
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