Kubernetes is another important tool in DevOps mostly used with Docker to deploy containerized applications. I will cover Kubernetes important topics in this Category.
In this article, we will see how to solve "kustomize error: accumulating resources: accumulation err must be a directory so that it can be used as a build root" error which usually occurs when you try to deploy some application, services, patches etc in Kubernetes cluster using kustomize tool. Kustomize is basically a free and ... Read more
In this article, we will see how to deal with a situation where you will see new pods are getting launched in Kubernetes even though replica is set to 1. Although this issue can happen due to many reasons but most of the time it usually occurs when you use emptyDir volume in your kubernetes ... Read more
In this article, we will see how to solve org.apache.kafka.connect.errors.ConnectException: An exception occurred when trying to get the next item from the change stream: Query failed with error code 17287 with name ' ' and error message 'Bad query specified'. If you are also getting this error then there is a chance that you are ... Read more
In the last article, we have seen How to modify Kafka Connectors configuration using kcctl. In this article, we will see how to republish existing data using Apache kafka connect. In a kafka driven architecture, there is always a case where destination system request to send original data again due to some reason or due ... Read more
In the previous article, we have seen How to Restart Apache Kafka Connectors? In this article, we will see how to modify kafka connectors configuration using kcctl utility. Source or sink connectors configuration can be easily set or modified through kcctl utility without much sweating. All you need to know is the right configuration that ... Read more
In this article, we will see how to restart apache kafka connectors. But before that, let's understand what are Kafka Connectors. They are basically plugin component which facilitates the interaction between Kafka and external systems such as database, storage, indexes etc. Connectors are integral part of Kafka connect framework playing a vital role in data ... Read more
In this article, we will see how to solve the problem of HPA and KEDA terminating manually scaled up pods in Kubernetes. But before going through the solution, let's briefly understand about HPA and KEDA concepts. HPA or Horizonal Pod Autoscaler is basically used to scales the number of Pods in a deployment, replication controller, ... Read more
In this article, we will see how to install kuberay operator in a kubernetes cluster using helm. If you are looking to simplify the deployment and management of ray clusters in kubernetes then kuberay operator would be the ideal choice for this purpose. It is a free and open source Kubernetes-native operator designed to manage ... Read more
In this article, we will see how to install and use cert manager and cmctl for certificate generation and renewal in Kubernetes Cluster. If you are looking for kubernetes native tool that automatically issues, renew and revoke TLS certificates for workloads running in your cluster then you should always go for cert-manager. It not only ... Read more
In this article, we will see how to install kube-downscaler in Kubernetes cluster using Kubectl. If you are running your applications in a kubernetes cluster and wanted to save some cost of running workloads during less traffic hours or during off business hours when the load is very minimal then kube-downscaler is a must to ... Read more