Reading Time: 3 minutes In this post, I will be discussing Ansible Modules. Modules are discrete units of code that can be used from the command line or in a playbook task. Ansible has a large number of ready to use modules for system management. User can also add their own custom modules, as they are written in python so one must have good command in python to write Continue Reading
Reading Time: 4 minutes Amazon Route53 is highly available and scalable cloud Domain Name System(DNS) web service. Amazon Route53 is fully compliant with IPv6.It is designed to give developers and businesses an extremely reliable and cost-effective way to route end users to Internet applications. You can use Route 53 to do three major functions:1. Domain Registration.2. DNS routing and 3. Health Checking. We will be majorly focusing on first Continue Reading
Reading Time: 3 minutes 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
Reading Time: 8 minutes 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
Reading Time: 2 minutes 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.
Reading Time: 3 minutes 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
Reading Time: 3 minutes 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
Reading Time: 4 minutes 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
Reading Time: 2 minutes 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
Reading Time: 4 minutes How to test our shell scripts?
