Articles by Rahul Shivalkar
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Rolling Updates and Rollbacks in Kubernetes
Author: Rahul Shivalkar • Tags: cloud • Comments: 0 • Published: Jul 10, 2020In this article, we will update the deployment with the default Rolling update strategy and rollback the deployment. To rollback the deployment, we will use the incorrect image in one of the updates to the deployment.
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Labels and Selectors in Kubernetes
Author: Rahul Shivalkar • Tags: cloud • Comments: 0 • Published: Jul 08, 2020Labels can be used to organize and to select Kubernetes objects. In this article, we will create a Pod with Labels to it and redirect the requests to it from the service using Selector. We will also perform get, delete operations on Pod and Service using Label/Selectors on the command line.
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Create Taints and Tolerations in Kubernetes
Author: Rahul Shivalkar • Tags: cloud • Comments: 0 • Published: Jul 06, 2020Taints and tolerations work together to make sure that pods are not scheduled onto inappropriate nodes. One or more taints can be applied to a node, this means that the node should not accept any pods that do not tolerate the taints. The pods that have toleration can only be deployed on those nodes with the taints.
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How to create Namespaces in Kubernetes
Author: Rahul Shivalkar • Tags: cloud, server • Comments: 0 • Published: Jul 03, 2020A namespace is helpful when multiple teams are using the same cluster. This is used when there is a potential of name collision. In this article, we will create a namespace and create a pod in the newly created namespace. We will also see how a namespace can be set as a default namespace.
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How to create a Replicaset in Kubernetes
Author: Rahul Shivalkar • Tags: cloud, server • Comments: 0 • Published: Jul 01, 2020A replica set makes sure the specified replicas of pods are always running. It can be considered as a replacement for the replication controller.
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How to create a Service in Kubernetes
Author: Rahul Shivalkar • Tags: • Comments: 0 • Published: Jun 30, 2020A service in Kubernetes is an abstraction layer over Pods. It defines a logical set of Pods. It provides a single IP address and DNS name by which pods can be accessed.
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How to create a Deployment in Kubernetes
Author: Rahul Shivalkar • Tags: cloud, linux • Comments: 0 • Published: Jun 29, 2020A Kubernetes deployment is a resource object in Kubernetes that provides declarative updates to applications. In this article, we will learn to create a deployment in Kubernetes and perform operations on it.
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How to take a Snapshot of a disk in Microsoft Azure Cloud
Author: Rahul Shivalkar • Tags: cloud • Comments: 0 • Published: Jun 25, 2020An Azure Snapshot is a read-only copy of the existing disk in the Microsoft Azure Cloud. We can create a snapshot of the OS or Data disk. In this article, we will create a snapshot of the disk of the existing Virtual Machine.
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Setup a Kubernetes Cluster on AWS EC2 Instance with Ubuntu using kubeadm
Author: Rahul Shivalkar • Tags: cloud, linux, ubuntu • Comments: 2 • Published: Jun 18, 2020In this article, we will see how to set up a Kubernetes cluster with 2 Worker Nodes and 1 Master Node on Ubuntu LTS Servers. We will use the "kubeadm" tool to set up the cluster.
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How to create a Terraform module
Author: Rahul Shivalkar • Tags: cloud, linux, virtualization • Comments: 3 • Published: Jun 11, 2020In this article, we will see how to create reusable modules in Terraform. Modules allow us to avoid code duplication. It means the same code can be used to create resources of the same type. By using modules you do not need to copy-paste your code to create multiple resources of the same type.
