Kubernetes

How do I resolve “out of memory” (OOM) killer events on Linux servers?

Resolving “Out of Memory” (OOM) killer events on Linux servers requires a systematic approach to identify the cause and implement appropriate solutions. Here are the steps and strategies to address OOM issues: 1. Analyze Logs and Identify the Cause Check System Logs: Examine the /var/log/messages or /var/log/syslog file for OOM-related entries. Search for “oom-killer” or […]

How do I troubleshoot kubelet service failures on Kubernetes nodes?

Troubleshooting kubelet service failures on Kubernetes nodes requires a systematic approach to identify and resolve the underlying issue. Below is a structured guide that you can follow as an IT Manager responsible for Kubernetes infrastructure: 1. Check Kubelet Service Status Use systemctl to check if the kubelet service is running: bash systemctl status kubelet Look […]

Useful links for Kubernetes

In this article, you can find useful links for learning and using Kubernetes. (unlike the well-known links (kubernetes.io, landscape.cncf.io, …) ) kube.academy: Very good to start learning the basics of Docker and Kubernetes, also you can find deep dive courses. katacoda : Learn new technologies using real environments right in your browser learn.openshift : You […]

Configure certificate in VMware Tanzu

TASK 1: GENERATE A CSR In the vSphere Client, select your Tanzu Cluster name and select Configure > Namespaces > Certificates. In the Workload Platform MGT tile, click the Actions drop-down menu and select Generate CSR. Configure the CSR. NOTE: The value for the common name must be DNS name of your Vmware Tanzu cluster (As it can be seen […]

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