Year: 2022

How to simulate traffic in Kubernetes cluster?

This post will show the most straightforward yet extremely powerful way to simulate traffic load in your environment, including the Kubernetes cluster. We will be using fortio for traffic generation for desired duration and requests per second. To see fortio in action, let’s see an example:we assume our application is an Nginx pod and will …

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canary deployment and traffic distribution in Kubernetes

This post will cover a basic example of canary deployment using istio in the Kubernetes cluster. In canary deployment, the software update is rolled out to a small portion of the users, so the developers can analyze the performance and work on the provided feedback without impacting all the users. Once the developers are happy …

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How to use callback plugins in ansible

Ansible is highly configurable and extendable for users. This post will show us how to use the callback plugins(shipped with ansible) to extend the playbooks. Ansible ships with many great callback plugins, a majority of these plugins are to control the output format of the playbook or to generate some sort of notification. Some examples …

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Why not use the script module in ansible?

In most cases, ansible inbuilt modules are enough to do the job. However, in some cases, it’s either highly complex or impossible to achieve the goal using ansible inbuilt modules. In such cases, many users write their scripts(Eg: bash or python,Etc.), which is fine for most cases. However, there are some downsides to using scripts. …

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