January 2023

Kubernetes: Mount multiple volumes into the same directory

We often need to mount multiple volumes into the same directory. For example, we need to mount SSL Certificate and Key into the same directory. However, the typical syntax of volumeMount would fail. To do this, projected volume needs to be used. Here is an example: Create Two secrets, we will be mounting them later …

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Istio Profiles and their differences

Istio provides multiple profiles for Istio installation in the Kubernetes cluster. Istio already provides exhaustive documentation about the various profiles and which one to use. The information could be overwhelming for some, so putting the differences in a short and simple format. Note that the post shows the control plane components, not the addons like …

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Simplifying VM Management: Executing Commands in Guest VMs using Virsh

If you are using virsh/qemu for Virtual machine management, then there are many occasions when an administrator requires to run some commands on the guest VM. This is made very simple by “Quem-guest-agent.” This post demos two approaches to running a command in the Virtual guest machine. Prerequisite:(Teststed for Ubuntu Host and Guest Machine) Approach-1: …

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