DevOps is known as Development Operations which has a large extent of applicability in Automation, Continuous Integration and Continuous Deployment. I will cover the most popular tools like Ansible, Puppet, Helm Charts, Salt, Docker, Kubernetes, Terraform, Git etc under this Category.
In this article, we will see how to solve "error: failed to push some refs to remote" if you are also getting this error. Last night when I was trying to push my release branch changes to the remote master, I noticed that it was failing with the "error: failed to push some refs to ... Read more
In this article, we will look into an open source tool called Dive which is used for analyzing docker image and layering its contents. This tool has the capability to show docker image contents broken down into layers. Dive with another tool called Jib is ideal for a situation where you have bunch of applications ... Read more
In this article, we will see how to fix Harbor Auth Mode which sometimes shows in disabled mode. This is a very common scenario with all those users who has been using Harbor in default Database Auth Mode. The problem comes when you need to change the Authentication mode to anything but Database mode. Currently ... Read more
In this article, we will see what need to be done when git pull is resolving as a fast forward and not creating a merge commit. Sometimes you might have observed that when you are trying to fetch and merge the changes from remote branch to the current local branch using git pull command, then ... Read more
If you are following a branching strategy in which you first start working on a release by creating a release branch from develop and then deploying your release branch in pre production environment post approval. Once all the testing is completed and it is ready to be promoted in production then you need to first ... Read more
In this article, we will see how to solve "error: src refspec master does not match any" if you are also getting this error during git push operation. Last night when I was trying to push my release branch changes to the master, I noticed that it was failing with the "error: src refspec master ... Read more
In this article, we will see how to disable or suspend cronjobs in Kubernetes. You might have come across a scenario where you cannot delete a cronjob in Kubernetes cluster, instead you need to put it in suspend state for now so that it cannot create any pod to perform its scheduled job. Although there ... Read more
![How to Upgrade Kubernetes Cluster to Some Specific Version [Step by Step] 12](https://www.cyberithub.com/wp-content/uploads/2022/01/upku.jpg)
In this article, I will take you through the steps to upgrade a Kubernetes Cluster. In any organization, upgrading Kubernetes cluster is one such daunting task that if not done properly, it might result in critical production loss. In reality, upgrading k8s cluster is much easier than you think given that you are following all ... Read more
In this article, we will see how you can check logs of multiple pods in a Kubernetes Cluster. In any Kubernetes environment troubleshooting a critical issue requires you to check the logs of the pods in a quick manner to find the root cause of the problem. For this purpose Kubernetes provides kubectl logs <pod> ... Read more
In this article, we will look into how to check logs of failed cronjobs in Kubernetes Cluster but before that let's first try to understand more about CronJobs. What is CronJob ? Why we need to run CronJobs ? So as you probably know a CronJob is basically a Job scheduled to perform a specific ... Read more