My experience of hosting static website hosting on Siteground It is been around 4 years ago I start my DevOps blog but along the way, I learned a lot about what goes behind hosting a website that receives thousands of users each day. I always wanted to document my journey but there is nothing much to share when your …

CommandLineRunner Interface is a functional interface provided by Spring Boot. The main purpose of this interface to execute a code block once before the application has finished startup. In this article, I will be addressing the need for the CommandLineRunner Interface as well as how and when to use it. GitHub Source …

To monitor modern cloud infrastructure, an SRE or DevOps engineer has to rely on automated monitoring tools such as Prometheus with Grafana or Zabbix. Both collect metrics from your servers, containers, network devices and applications, store them, show them on dashboards and wake you up when something is wrong. And …

Prometheus and Grafana are the two popular open-source tools for collecting and visualizing performance metrics. In this blog post, we are going to set up Kubernetes cluster on AWS, later we are gonna set up Prometheus server for collecting the performance metrics and Grafana for. Prometheus and Grafana are always a …

Performance monitoring and alerting are crucial to measure how an application and the servers under it behave in production. In this blog post we are going to set up the most popular open-source monitoring stack there is - Prometheus to collect and store the metrics, Node Exporter to expose the CPU, memory, disk and …

I had an issue while I was trying to setup Remote S3 bucket for storing Terraform state file. The issue faced is error configuring S3 Backend no valid credential sources for S3 Backend found. After spending some time on my local terraform setup and AWS CLI configuration I realised that my AWS CLI was using incorrect …

To give you a little background on the Vagrant NFS shared folder issue which I have struggled with this issue for almost a week before I found the root cause of the problem. Here is the vagrant's mount.nfs:connection timed out error 1default: Mounting NFS shared folders... 2 3The following SSH command responded with a …

GitHub has recently announced their migration to use token-based authentication which means you can no longer use your username and password for GtiHub authentication. You need to create personal access token to continue use of your GitHub Repository. Here is my private GitHub repository which I was trying to clone …

Note - This Kubernetes Cheat sheet is really long and detailed. I would highly recommend to use CTRL+F from the browser to search for the specific command. Table Of Content Pods Deployments Port Forwarding Service Nodes Namespace Service Accounts Documentation Describing Resources Editing Resources Deleting Resources …

Terraform state is the backbone of your terraform project for provisioning your cloud infrastructure. When you work on large infrastructure provisioning with Terraform then it is always more than one developer or team of a developer working on the same terraform project. The problems arise when two developers try to …