DevOps Hunter Security Automation

 Hey Guys!! How are you? In this learning post I would like to share with you awesome Jenkins feature experiment -  Infrastructure as a Code (IaC). The entire Jenkins Job or Project can be configured manually step-by-step in the regular fashion, when you click on the "new item" on the Jenkins Dashboard to create a project. But here story is different - with DSL script you could do the same thing that is dynamically creating a Job with a single flexible scalable durable way with Groovy script.  Jenkins DSL Groovy script generating dynamic Job Groovy is more like Shell scripting but totally executable on Java Virtual Machine. Those who know Java it will be easy to understand the Groovy syntax and its blocks. If you don't then no worries we will be coming up with easy to use DSL script in the following sections. Prerequisite for DSL Job creation Jenkins master-slave installed up and running. SCM installed/github Up and running Jenkins must have plugins installed such as ...

 Hello DevOps Guys, We will install the Jenkins Controller on the Windows machine.  How to install Jenkins on Windows machine? Here in this post we will explore Step-by-Step installation instructions for Jenkins on Windows platform. Jenkins installation on Windows Step 1: Install and set Java Please visit the Oracle Java SE download page:  http://www.oracle.com/technetwork/java/javase/downloads/index.html . Oracle providing the new option on the download page, that is "JDK Script Friendly URLs" page. Choose the JDK for your operating system (Windows 10 or 11) 64bit to download. Double click downloaded file launches installer wizard, proceed with the agree and set up the installation location as per your disk/drive availability. Verification of Java installation  Open a CMD prompt run "java -version" if Java installed correctly in the PATH you will get the installed version as output. if not set the PATH from the type ENVIRONMENT VARAIABLES search ->EDIT ENVIRONME...

After c onfiguring the  Jenkins Maste r we need to configure the slave or agent on EC2 instance. There are various methods to connect with the Slave node. In this post,  I would like to share the SSH key-based remoting method. Pre-requisites Jenkins Master already Up and Running Java (JDK) installed on the Slave node Here we are in the slave machine and proceed with the following steps for configure a SSH based Jenkins slave. How to create user and generate ssh-key on Slave? Login to slave node terminal using ssh or PuTTY switch to root user.  useradd jenkins_slave mkdir -p /home/jenkins_slave usermod -d /home/jenkins_slave jenkins_slave tail -1 /etc/passwd # To check useradded to userlist Now switch to the newly created user 'jenkins_slave'. sudo su - jenkins_slave SSH Key generate for 'jenkins_slave' user with the following command: cd .ssh ssh-keygen -t rsa -N "" The above command will create two files in /home/jenkins_slave/.ssh folder id_rsa (p...