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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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Blue / Green deployment using one or more k8s clusters?

What are the reason to consider using one k8s cluster for blue and one for green when doing B/G CD scenario ? Does the cost of having two clusters which already have cloud provider HA has reasoning ?
eugeneK
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Tomcat/TomEE creates lots of DEBUG logs on Google KubernetesEngine, but not on plain Docker

We deploy our application on TomEE 7.0.3 (Tomcat 8.5.11) in Docker images. The production platforms run on Google Kubernetes Engine clusters while development, staging and so on run as plain Docker containers on Linux servers. On production we see…
f.sh
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Why GCP Kubernetes Node host location for europe-north1 seems to be in US?

I am new to both Google Cloud Platform and K8s. I have launched Kubernetes cluster in GCP and chosen europe-north1 as the region (europe-north1-a as the zone). When I try to run my application on this cluster it fails because it expects the…
Umeetiusbaarus
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Kubernetes (K8S): TCP clients waiting very long timeout on connection to a Service when there are no Pods serving its requests

My problem occured when using Redis on Kubernetes, but it seems that it is not a problem with Redis itself, but with network/infrastructure. My scenario: I have a Redis Service with single Redis Pod serving it. I connect Redis Client to the…
rideronthestorm
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POD services in Kubernetes not opening from google cloud

I installed kubernetes 3 node cluster in google cloud virtual machines.All PODS are working fine inside the network but I am not able to expose the service url outside google cloud.
debasis maity
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Why do GKE container optimized OS node external interfaces listen on pop/imap ports?

Using Google Container Engine (GKE) with Container Optimized Images the external interfaces (ephemeral IPs) seem to be listening on ports 110, 143, 993, 995, etc. as demonstrated via a port scan with nmap: Nmap scan report for…
mbrevoort
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Why conjure-up (and not apt) for Kubernetes on Ubuntu?

I would like to know what is the rational for the use of conjure-up on Ubuntu to install Kubernetes? As far as I know there are Debian packages for Kubernetes. As a long-time Debian and Ubuntu user I am a bit puzzled on why to have to use a system…
Tiago Antao
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`kubectl logs` on Azure AKS yields error "Forbidden (user=system:anonymous ..)"

Whenever I try to run kubectl logs on azure, I get the following error: Error from server (Forbidden): Forbidden (user=system:anonymous, verb=get, resource=nodes, subresource=proxy) ( pods/log ) A similar error is returned for kubectl exec,…
Markus Dresch
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Remote command execution on kubernetes container

I am having kubernetes cluster where I am trying to check disk utilisation of containers running on it. $kubectl version Client Version: version.Info{Major:"1", Minor:"5", GitVersion:"v1.5.8", GitCommit:"e8c167a115ec662726904265d17f75a6d79d78d8",…
Shailesh Sutar
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Can we deploy two mongodb services, using helm package in same cluster with different release name?

I used helm stable charts to install mongodb in my AWS kubernetes cluster, when i run helm install mongodb for the first time, no issues all pod runs and i am able to access the db too. however, when i run helm install mongodb second time with new…
Shruthi Bhaskar
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Nginx not honoring configuration

I have a kubernetes deployment which requires the following configuration: POST must be allowed from any origin. GET, HEAD, LIST must be restricted to intranet. I came up with: include modules/*.conf; worker_processes 1; error_log …
vfbsilva
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Kubernetes Calico: Networking policy to block connecting to the port 10250 on nodes

I have a Kubernetes cluster with Calico network overlay installed in it. How do I configure a network policy object to prevent pods connecting to the port 10250 (kubelet API) on the nodes? I have something along these lines: kind:…
pkout
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Installing Kubernetes on Ubuntu - connection to the server was refused on reboot

I can install Kubernetes successfully on a Ubuntu 16 server, and get the master node into a Ready status. But if I reboot/restart, I get the error message in the title when I try to use KUBECTL. Do I need to put the following commands given when I…
Peter Schofield
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How to provide MySQL my.cnf after S2I has run

In the Red Hat Software Collections MySQL container, I see that you can set MYSQL_DEFAULTS_FILE to indicate the path to a completely different my.cnf file. When used in OpenShift, I don't understand how to get such a config file on disk, since their…
Collin Allen
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kubernetes daemonset pod terminating for a time after being killed

I have a Kubernetes Daemonset running on my GKE cluster version: Server Version: version.Info{Major:"1", Minor:"9+", GitVersion:"v1.9.6-gke.1", GitCommit:"cb151369f60073317da686a6ce7de36abe2bda8d", GitTreeState:"clean",…
artushin
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