Skip to main content

Install Kubernetes Metric Server / kubectl top will work 100% for CPU and Memory metric collection

How to install metric server in kubernetes for the collection of CPU and Memory Metrics 


 


Kubectl top is not working for pods and nodes:

Work Around


Please use the following link for metric server installation:


Apply the following commands:

it will install the metric server into your kube-system namespace as below:



Once the metric server pod is up and running. You can start using kubectl top commands 


Sharing Sample Results :








Comments

Post a Comment

Popular posts from this blog

TKGS VMware/Kubernetes ReadWriteMany Functionality with NFS-CSI

 TKGS VMware WRX Functionality with NFS CSI ReadWriteMany Access mode in Kubernetes When it come to RWX access mode in PVC, TKGS support it if we have the following: 1. Kubernetes is upgraded to 1.22.9 (This version supports this RWX functionality) 2. vSAN should be there in your environment (VMware uses the vpshere csi, which only support vSAN) How to done it without vSAN: 1. Upgrade the kubernetes to version 1.22.9 2. Use NFS-CSI and then create a new storage class to be consumed. Work Around : 2.a : Please use the below link to get the nfs-csi-driver  https://github.com/ibraraziz/csi-driver-nfs Note: It absolutely fine that we have multiple CSI drivers/provisioner in kubernetes (Just for information) Step:1 Goto csi-driver-nfs/deploy/v4.0.0/ and apply that yaml into your environment. It will create NFS csi provisioner and controller pods in namespace of kubesystem as below Step: 2 Now create storage class and goto the example folder  csi-driver- nfs/deploy/example...
Post a Comment
Read more

Choosing the Right OpenShift Service: Service Mesh, Submariner, or Service Interconnect?

In today’s digital world, businesses rely more and more on interconnected applications and services to operate effectively. This means integrating software and data across different environments is essential. However, achieving smooth connectivity can be tough because different application designs and the mix of on-premises and cloud systems often lead to inconsistencies. These issues require careful management to ensure everything runs well, risks are managed effectively, teams have the right skills, and security measures are strong. This article looks at three Red Hat technologies—Red Hat OpenShift Service Mesh and Red Hat Service Interconnect, as well as Submariner—in simple terms. It aims to help you decide which solution is best for your needs. OPENSHIFT Feature Service Mesh (Istio) Service Interconnect Submariner Purpose Manages service-to-service communication within a single cluster. Enables ...
Post a Comment
Read more

TKGM PR-DR SITE ON VCLOUD DIRECTOR ARCHITECURE

 TKGM PR-DR SITE ON VCLOUD DIRECTOR ARCHITECURE  You build: vSphere + vCD + NSX-T + CSE on both sites. You deploy TKGm clusters on primary. You set up Velero to back up YAMLs and volumes. You mirror Harbor registry to DR. You test restoring a cluster on DR site using CSE + Velero. You prepare DNS (manual or automated) to point to DR when needed. Primary & DR Site Layer Comparison Table Layer Component Primary Site DR Site What Happens During DR? Notes / Tools 1️⃣ Infrastructure vSphere (ESXi, vCenter) Same setup DR vSphere takes over Ensure hardware compatibility 2️⃣ Networking NSX-T Same NSX-T setup DR NSX routes traffic Replicate NSX segments, edge configs 3️⃣ Cloud Management vCloud Director vCloud Director DR vCD deploys new VMs Must sync templates across sites 4️⃣ K8s Provisioning CSE (TKGM enabled) CSE (same version) DR CSE deploys TKGm cluster Sync catalog/templates 5️⃣ Kubernetes Cluster TKGm Cluster (Running) TKGm Cluster (Rebuilt) Apps are restore...
Post a Comment
Read more