Jenkins installation on Centos behind Nginx
Step-1: Setting up Timezone
sudo timedatectl set-timezone Asia/Kolkata
Step-2: Download and install tools
sudo yum install -y policycoreutils-python wget git
Step-3: Download Java
sudo wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u141-b15/336fa29ff2bb4ef291e347e091f7f4a7/jdk-8u141-linux-x64.rpm"
Step-4: Install java
sudo rpm -ivh jdk-8u141-linux-x64.rpm
Step-5: Setting Java Environmental Variables
sudo vi /etc/profile.d/java.sh
#!/bin/sh JAVA_HOME=/usr/java/jdk1.8.0_141 PATH=$PATH:$JAVA_HOME/bin export JAVA_HOME PATH export CLASSPATH=.
Step-6: Executing and sourcing the env file
sudo chmod +x /etc/profile.d/java.sh source /etc/profile.d/java.sh
Step-7: Download Jenkins
sudo wget https://pkg.jenkins.io/redhat-stable/jenkins-2.60.3-1.1.noarch.rpm
Step-8: Install Jenkins
sudo rpm -ivh jenkins-2.60.3-1.1.noarch.rpm
Step-9: Create JENKINS_HOME directory
sudo mkdir /opt/mycicd sudo chown -R jenkins:jenkins /opt/mycicd
Step-10: Edit Jenkins Options file
sudo vi /etc/sysconfig/jenkins JENKINS_HOME=/opt/mycicd
Step-11: Start Jenkins
sudo systemctl start jenkins sudo systemctl enable jenkins
Step-12: Download Nginx
sudo wget https://nginx.org/packages/rhel/7/x86_64/RPMS/nginx-1.12.1-1.el7.ngx.x86_64.rpm
Step-13: Install nginx
sudo rpm -ivh nginx-1.12.1-1.el7.ngx.x86_64.rpm
Step-14: Starting Nginx
sudo systemctl start nginx sudo systemctl enable nginx
Step-15: Nginx Jenkins Configuration
sudo vi /etcnginx/conf.d/jenkins.conf
upstream app_server {
server 127.0.0.1:8080 fail_timeout=0;
}
server {
listen 80;
listen [::]:80 default ipv6only=on;
server_name jenkins.yebbare.com;
location / {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host;
proxy_redirect off;
if (!-f $request_filename) {
proxy_pass http://app_server;
break;
}
}
}
Step-16: Reload Nginx Configuration
sudo nginx -t sudo nginx -s reload
Step-17: Nginx SELinux Module for Jenkins reverse proxy
sudo cat /var/log/audit/audit.log | grep -i nginx | grep -i denied | audit2allow -M skynginx sudo semodule -i skynginx.pp
Categories
SKYDEVOPS 
sudo timedatectl set-timezone Asia/Kolkota
Kolkota –> Kolkata
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