Setup & Observe Kubernetes cluster

Introduction In this gist we will quickly spin a sample Kubernetes cluster and deploying the nginx pod. Additionally, we will implement monitoring using Elastic. Setup K8s cluster Cluster architecture 3 Node cluster Machine - Centos7, 4GB RAM kube1.local - Control plane node kube2.local - worker node kube3.local - worker node Here I am setting hostname kube1.local, kube2.local, kube3.local. Login into all of the servers and perform below command on all three nodes....

March 28, 2024 · 3 min · Ashish Tiwari

Monitor Kubernetes cluster with Elastic

Introduction Bring logs, metrics, and traces from your Kubernetes cluster and the workloads running on it into a single, unified solution. Elastic observability gives better visibility on your kubernetes ecosystem where you can monitor your pods, services, workload etc. Use a centrally managed Elastic Agent to gain visibility into your Kubernetes deployments on EKS, AKS, GKE or self-managed clusters. Talk Video

July 28, 2023 · 1 min · Ashish Tiwari

Kubernetes generic errors

1. unknown service runtime.v1alpha2.ImageService Error: pulling image: rpc error: code = Unimplemented desc = unknown service runtime.v1alpha2.ImageService System configuration centos 9 / 2GB RAM / 2CPU Master Node Same issue on master node. Command [root@kube-master-1 ~]# kubeadm config images pull failed to pull image "registry.k8s.io/kube-apiserver:v1.26.0": output: E0107 14:52:09.997544 4134 remote_image.go:222] "PullImage from image service failed" err="rpc error: code = Unimplemented desc = unknown service runtime.v1alpha2.ImageService" image="registry.k8s.io/kube-apiserver:v1.26.0" time="2023-01-07T14:52:09Z" level=fatal msg="pulling image: rpc error: code = Unimplemented desc = unknown service runtime....

January 7, 2023 · 2 min · Ashish Tiwari