Create READme.md

Author: legah2045

JENKINS-INSTALLATION/READme.md

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+#  **<span style="color:green">Landmark Technologies, Ontario, Canada.</span>**
+### **<span style="color:green">Contacts: +1437 215 2483<br> WebSite : <http://mylandmarktech.com/></span>**
+### **Email: [email protected]**
+
+
+
+## Jenkins Installation And Setup In AWS EC2 Redhat Instnace.
+##### Prerequisite
++ AWS Acccount.
++ Create Redhat EC2 t2.medium Instance with 4GB RAM.
++ Create Security Group and open Required ports.
+   + 8080 got Jenkins, ..etc
++ Attach Security Group to EC2 Instance.
++ Install java openJDK 1.8+ for SonarQube version 7.8
+
+### Install Java JDK 1.8+ as Jenkins pre-requisit
+### Install other softwares - git, unzip and wget
+
+``` sh
+hostname cicd
+sudo yum -y install unzip wget tree git
+sudo wget -c --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/jdk-8u131-linux-x64.rpm
+sudo yum install jdk-8u131-linux-x64.rpm -y
+```
+###  Add Jenkins Repository and key
+```sh
+sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
+cd /etc/yum.repos.d/
+sudo curl -O https://pkg.jenkins.io/redhat-stable/jenkins.repo
+```
+
+## Install Jenkins
+```sh
+sudo yum -y install jenkins  --nobest
+```
+# start Jenkins  service and verify Jenkins is running
+```sh
+sudo systemctl start jenkins
+sudo systemctl enable jenkins
+sudo systemctl status jenkins
+```
+# Access Jenkins from the browser
+```sh
+public-ip:8080
+```
+# get jenkins initial admin password
+```sh
+sudo cat /var/lib/jenkins/secrets/initialAdminPassword
+```
+