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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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GKE Arm-based cluster starts in invalid state

After I install a new GKE cluster on Arm-based VM it immediately starts in a failing state. Specifically antrea-controller-horizontal-autoscaler cannot be run as it has no toleration for Arm-based architecture. Did it happen to anyone else? Official…
Martin D
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AKS System Node Pool and number of nodes

The AKS docs mention that 3 nodes are recommended in Production for System Node Pool. What is the rationale behind this? Does the fact that the cluster is a private cluster change anything in the recommendation?
Maximusawesome
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How to use open service mesh in kubernetes?

I am trying to test open service mesh for our application. No tags in serverfault for service mesh or servicemesh or osm or open service mesh,etc. So I kept istio as serverfault tag to this question as it is also a similar product of service…
sardar
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How do I disable liveness probes with kubectl debug?

I'm trying to create an ephemeral debug container using kubectl debug as follows: kubectl debug $POD_NAME -it --share-processes --container=myapp-web --copy-to=$USER-debug -- /bin/bash My app is a Django app -- the goal is to be able to shell in…
tao_oat
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How to find specific Kubernetes resource and "terminate/finalize" it when namespace deletion is stuck?

Hi I tried to delete some namespaces and they are stuck in terminating... From the below details, I tried to delete the supposed rolebindings and roles, but they won't delete either and I don't know where to find the resources for:…
user432024
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Error retrieving resource lock kube-system/kube-controller-manager: Connection Refused - Kube Controller Manager

LOGS Kube controller Manager Fetching last 1000 lines of logs from kube-controller-manager-raspberrypi pod in kube-system namespace: I0809…
Mohsin A
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Kubernetes yaml not working on Rabbitmq cluster

I have a Rabbitmq Kubernetes cluster version 3.10.2 running on Azure AKS. I have applied cluster operator using. kubectl apply -f "https://github.com/rabbitmq/cluster-operator/releases/latest/download/cluster-operator.yml" Now I have created a…
user3014588
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Failed to add worker node on external network to Kubernetes cluster

Hello I am currently running a Kubernetes cluster at home with 1 master node and 1 worker node. I tried to add instances running on Oracle Cloud as worker nodes to this Kubernetes cluster. I port-forwarded all the ports listed in the official…
404NotFound
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Custer does not start. etcd and kube-apiserver do not start. Kubelet starts

After a blackout, the cluster does not start. 3 workers + 2 Control Planes. Installed with kubeadm. Version 1.27.1 containerd 1.6.22 Ubuntu 22.04.3 LTS It has been running fine for more than one year, and the last kube* upgrade was 2-3 months…
JCPuente
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Restrict access to a Prometheus server in AKS can only be achieved with nginx-ingress?

Prometheus server with its respective Loadbalancer in AKS. I wanted to secure the access to /metrics through network rules...but it doesn't work. I can still acess to the endpoint with any device. az network nsg rule create \ --resource-group…
Wadjet
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using kyverno instead of apparmor

we want to use AppArmor for pod and container security. we have Kyverno and it's possible to add some capabilities using that. I want to know if it is possible to replace AppArmor with Kyverno for our needs in kubernetes? I mean is it possible to…
Michael Cab
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I want to check the storage used by GKE Node

I have created a GKE cluster with 20 GB of storage and it is runnning 4 pods. 3 of them are angular application and 1 is node applicaiton and 10.5GB is already used and only 3.96 GB is left. I wanted to check how much storage is used by whom these 4…
Robin
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extraPortMappings for kubeadm

I am be able map my NodePort service to localhost using a configuration file like this: kind: Cluster apiVersion: kind.x-k8s.io/v1alpha4 nodes: - role: control-plane extraPortMappings: - containerPort: 32000 hostPort: 3000 protocol:…
atg
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RabbitMQ CPU Usage Spikes

I've installed RabbitMQ on kubernetes(k3s) on ARM (Oracle OCI Ampere A1) using the community docker image. I'm seeing very regular periodic CPU usage spikes (two series of spikes, both with a period of 60 seconds and offset by about 20 or so…
Chintalagiri Shashank
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HTTP_X Forwarded For NGINX Ingress not working

I have a simple application running inside AKS. I'm trying to get the IP of the source user when accessing the application. I have created an ingress for the application. When I curl -I https://example-app.xyz I see the source IP in the logs of…
Container-Man
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