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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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Changing the traffic distribution of a Kubernetes service

In Kubernetes with the default configurations, When a deployment is exposed via a service, the traffic is distributed between the endpoints/replicas in a round-robin way. This is great for most cases; however, the cluster administrator sometimes wants a finer traffic distribution control. Kubernetes provided a few more strategies for traffic distribution among the service’s endpoints. …

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Create Kubernetes cluster locally using Kubespray and libvert

This post will show a simple tool to create a Kubernetes cluster using libvert and kubespray. Libvert needs to know the introduction; if you are working on a Linux environment, you are likely a fan of libvert already. I have written a set of playbooks to leverage libvert to spawn a cluster of virtual machines, …

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