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ExternalName Service: Easy Namespace Traffic switching and Management

Kubernetes has multiple types of services type to offer to the user. A user can choose the right fit based on the requirement. This post will demonstrate leveraging the externlName service type for traffic redirection. Let’s assume a scenario where I have two versions of the same application running, and I want to move traffic(generated …

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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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An Amazingly fast way to create Virtual machines

If you create Virtual machines often and manually install the same tools repeatedly, this post is for you. Using ansible, I have written a simple playbook to create the virtual machines within seconds. The playbook would automatically install any desired software you want. The playbook would also run any command you would like to execute …

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Running Ansible Semaphore for GUI in Kubernetes

There are Multiple choices are available to run ansible playbooks via GUI, like AWX, Ansible tower, ansible semaphore, etc. However, this post will demo how to set up an ansible semaphore pod in the Kubernetes cluster. At the time of writing this post, the official document of ansible semaphore provides the following installation methods: Installing …

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