OpsInit

OpsInit: Adding a Github webhook in Jenkins Pipeline

Have you ever tried adding GitHub webhook in Jenkins?? In this blog, I will be demonstrating the easiest way to add a webhook in our pipeline. First, let’s see what is a webhook?? The concept of a WebHook is simple. A WebHook is an HTTP callback: an HTTP POST that occurs when something happens. GitHub webhooks in Jenkins is used to trigger our build whenever Continue Reading

OpsInit: Service Discovery In DCOS

DC/OS provides a number of tools out-of-the-box, ranging from basic network connectivity between containers to more advanced features, such as load balancing and service discovery. In this blog, we’ll check the mechanisms through which DC/OS provides networking in version 1.12. What is Service Discovery? Service discovery is how your applications and services find each other. Given the name of a service, service discovery tells you Continue Reading

OpsInit: Basic Understanding of DevOps – Part 1

In this blog, we will take a leap into the world of DevOps and learn some basic terms used in it. Let’s understand with the example.

OpsInit: Packer On AWS

What is Packer? Packer is an open source tool for creating identical machine images for multiple platforms from a single source configuration. Packer is lightweight, runs on every major operating system, and is highly performant, creating machine images for multiple platforms in parallel. Packer does not replace configuration management like chef or Puppet. In fact, when building images, Packer is able to use tools like Continue Reading

OpsInit: Configuring Crontab With Ansible

Introduction to crontab: The crontab is a list of commands that you want to run on a regular schedule. Crontab stands for “cron table”, because it uses the job scheduler cron to execute tasks; cron itself is named after “chronos, ” the Greek word for time.cron is the system process which will automatically perform tasks for you according to a set schedule. The schedule is Continue Reading

OpsInit: Introduction to Systemd

Introduction Let’s talk about init processes, What are they and how they work? Init stands for initialization which implies that it is the first process that runs when we start our system. This process is the father to all the processes. There are some disadvantages due to which it has been replaced by Systemd. These disadvantages are as follows: Starts tasks serially. It waits for one Continue Reading

OpsInit: ReplicaSet VS DaemonSet in Kubernetes

Kubernetes API is growing day by day and they are adding new features every day. The latest feature they added was DaemonSet. Although they had ReplicaSet,  DaemonSet is the K8 object they added. Let’s see the difference. ReplicasSet will ensure that the number of pods (defined in our config file) is always running in our cluster. Does not matter in which worker node they are Continue Reading

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