- \n
- Ubuntu 18.04<\/li>\n
- Root privileges<\/li>\n<\/ul>\n
What we will do?<\/h2>\n
- \n
- Install Java<\/li>\n
- Install Jenkins<\/li>\n
- Install and Configure Apache2 as a Reverse Proxy for Jenkins<\/li>\n
- Configure UFW Firewall<\/li>\n
- Configure Jenkins<\/li>\n
- Jenkins Security<\/li>\n
- Testing<\/li>\n<\/ol>\n
Step 1 – Install Java<\/h2>\n
Jenkins is a Java-based application, so we need to install Java OpenJDK on the server. In this step, we will install Java 8 from a PPA repository which we will add first.<\/p>\n
Install software-properties-common packages, then add the java OpenJDK PPA repository.<\/p>\n
sudo apt install software-properties-common apt-transport-https -y
sudo add-apt-repository ppa:openjdk-r\/ppa -y<\/p>\n![\"Install](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04.png\" "\\"\\"")
<\/a><\/p>\nNow install the Java 8 using apt command.<\/p>\n
sudo apt install openjdk-8-jdk -y<\/p>\n
When the installation is complete, check the java version installed on the system.<\/p>\n
java -version<\/p>\n
And you will get the Java OpenJDK 1.8 is now installed on the Ubuntu 18.04 system.<\/p>\n
![\"Java](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-1.png\" "\\"\\"")
<\/a><\/p>\nNote:<\/strong><\/p>\n
- \n
- If you have multiple java version on your system, change the default java version using the command below.<\/li>\n<\/ul>\n
sudo update-alternatives –config java<\/p>\n
Step 2 – Install Jenkins<\/h2>\n
Jenkins provides an Ubuntu repository for the installation packages and we will install Jenkins from this repository.<\/p>\n
Add Jenkins key and repository to the system with the command below.<\/p>\n
wget -q -O – https:\/\/pkg.jenkins.io\/debian-stable\/jenkins.io.key | sudo apt-key add –
echo ‘deb https:\/\/pkg.jenkins.io\/debian-stable binary\/’ | tee -a \/etc\/apt\/sources.list<\/p>\nNow update the repository and install Jenkins.<\/p>\n
sudo apt update
sudo apt install jenkins -y<\/p>\n![\"Install](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-2.png\" "\\"\\"")
<\/a><\/p>\nWhen the installation is complete, start the Jenkins service and add it to the boot time.<\/p>\n
systemctl start jenkins
systemctl enable jenkins<\/p>\nJenkins is now up and running on Ubuntu 18.04 server, running on the default port ‘8080’. Check it using netstat as below.<\/p>\n
netstat -plntu<\/p>\n
And you will get the result as below.<\/p>\n
![\"Jenkins](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-3.png\" "\\"\\"")
<\/a><\/p>\nStep 3 – Install and Configure Apache2 as a Reverse proxy for Jenkins<\/h2>\n
In this tutorial we will run Jenkins behind an Apache web server, we will configure apache as the reverse proxy for Jenkins.<\/p>\n
First we will install Apache and enable some require modules, and then we will create the virtual host file with domain name jenkins.hakase-labs.io for Jenkins. Please use your own domain name here and replace it in all config files wherever it appears.<\/p>\n
Install apache2 web server from Ubuntu repository.<\/p>\n
sudo apt install apache2 -y<\/p>\n
When the installation is complete, enable the proxy and proxy_http modules so we can configure apache as frontend server\/reverse proxy for Jenkins.<\/p>\n
a2enmod proxy
a2enmod proxy_http<\/p>\nNext, create a new virtual host file for Jenkins in the sites-available directory.<\/p>\n
cd \/etc\/apache2\/sites-available\/
vim jenkins.conf<\/p>\nPaste virtual host configuration below.<\/p>\n
<Virtualhost *:80> ServerName jenkins.hakase-labs.io ProxyRequests Off ProxyPreserveHost On AllowEncodedSlashes NoDecode <Proxy http:\/\/localhost:8080\/*> Order deny,allow Allow from all <\/Proxy> ProxyPass \/ http:\/\/localhost:8080\/ nocanon ProxyPassReverse \/ http:\/\/localhost:8080\/ ProxyPassReverse \/ http:\/\/jenkins.hakase-labs.io\/ \n<\/Virtualhost><\/pre>\n
Save and exit, then activate the Jenkins virtual host with the a2ensite command.<\/p>\n
a2ensite jenkins<\/p>\n
Restart Apache and Jenkins services.<\/p>\n
systemctl restart apache2
systemctl restart jenkins<\/p>\nThe apache2 installation and configuration as a reverse proxy for Jenkins has been completed.<\/p>\n
![\"Apache](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-4.png\" "\\"\\"")
<\/a><\/p>\nStep 4 – Configure UFW Firewall<\/h2>\n
Before enabling the UFW firewall on the Ubuntu server, we need to add the basic services port such as SSH, HTTP, and HTTPS.<\/p>\n
Add SSH, HTTP, and HTTPS services to the ufw firewall.<\/p>\n
ufw allow ssh
ufw allow http
ufw allow https<\/p>\nNow start and enable the ufw firewall.<\/p>\n
ufw enable<\/p>\n
type ‘y’ and press Enter.<\/p>\n
![\"Configure](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-5.png\" "\\"\\"")
<\/a><\/p>\nThe UFW firewall is now enabled, and the HTTP port has been added.<\/p>\n
Step 5 – Configure Jenkins<\/h2>\n
Jenkins is running on the domain name ‘http:\/\/jenkins.hakase-labs.io<\/a>‘. Open your web browser and type in the URL.<\/p>\n
You will get the screen that requests you to enter the initial admin password. A password has been generated by Jenkins already, so we just need to show and copy the results to the password box.<\/p>\n
Show initial admin password Jenkins with the cat command.<\/p>\n
cat \/var\/lib\/jenkins\/secrets\/initialAdminPassword<\/p>\n
![\"Configure](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-6.png\" "\\"\\"")
<\/a><\/p>\nPaste the results to the screen and click ‘Continue’.<\/p>\n
![\"Unlock](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-7.png\" "\\"\\"")
<\/a><\/p>\nNow we should install some plugins in Jenkins to get a good foundation for later use. Choose ‘Install Suggested Plugins’, click on it.<\/p>\n
![\"Customize](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-8.png\" "\\"\\"")
<\/a><\/p>\nJenkins plugins installations in progress.<\/p>\n
![\"Jenkins](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-9.png\" "\\"\\"")
<\/a><\/p>\nAfter the plugins installation is complete, we need to create a new admin password. Type in your admin username, password, email etc. and click on ‘Save and Continue’.<\/p>\n
![\"Create](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-10.png\" "\\"\\"")
<\/a><\/p>\nFor the instance configuration, type the Jenkins domain name ‘http:\/\/jenkins.hakase-labs.io’ and click ‘Save and Finish’ button.<\/p>\n
![\"Instance](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-11.png\" "\\"\\"")
<\/a><\/p>\nNow click the ‘Start using Jenkins’ button.<\/p>\n
![\"Jenkins](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-12.png\" "\\"\\"")
<\/a><\/p>\nAnd you will be redirected to the Jenkins admin dashboard.<\/p>\n
![\"Welcome](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-13.png\" "\\"\\"")
<\/a><\/p>\nJenkins installation and Configuration has been completed successfully<\/p>\n
Step 6 – Jenkins Security<\/h2>\n
From the Jenkins admin dashboard, we need to configure the standard security settings for Jenkins, click on ‘Manage Jenkins’ and then ‘Configure Global Security’.<\/p>\n
![\"Manage](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-14.png\" "\\"\\"")
<\/a><\/p>\nJenkins provides several authorization methods in the ‘Access Control’ section. We will be using the ‘Matrix-based Security’, so we can control all user privileges.<\/p>\n
Add the ‘hakase’ user at the box ‘User\/Group’ and click add.<\/p>\n
Give the ‘hakase’ user all privileges by checking all options, and click ‘Save’ button.<\/p>\n
![\"Jenkins](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-15.png\" "\\"\\"")
<\/a><\/p>\nYou will be redirected to the dashboard, and if there is login option, just type your admin user and password.<\/p>\n
![\"Login](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-16.png\" "\\"\\"")
<\/a><\/p>\nStep 7 – Testing<\/h2>\n
In this section, we want to create a simple job for the Jenkins server. We will create a simple job for testing Jenkins and to find out the server load with the top command.<\/p>\n
From the Jenkins admin dashboard, click ‘Create New Job’.<\/p>\n
![\"Create](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-17.png\" "\\"\\"")
<\/a><\/p>\nType the job name. We’ll use ‘Checking System’ here, select ‘Freestyle Project’ and click ‘OK’.<\/p>\n
![\"Jenkins](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-18.png\" "\\"\\"")
<\/a><\/p>\nGo to the ‘Build’ tab. On the ‘Add build step’, select the option ‘Execute shell’.<\/p>\n
Type in the command below into the box.<\/p>\n
top -b -n 1 | head -n 5<\/p>\n
Click ‘Save’.<\/p>\n
![\"Build](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-19.png\" "\\"\\"")
<\/a><\/p>\nNow you are on the job page of the job ‘Project checking system’. Click ‘Build Now’ to execute the job ‘checking system’.<\/p>\n
![\"Project](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-20.png\" "\\"\\"")
<\/a><\/p>\nAfter the job has been executed, you will see the ‘Build History’, click on the first job to see the results.<\/p>\n
Here are the results from the job executed by Jenkins.<\/p>\n
![\"Result](\"https:\/\/afaghhosting.net\/blog\/wp-content\/uploads\/2018\/06\/how-to-install-jenkins-automation-server-with-apache-on-ubuntu-18-04-21.png\" "\\"\\"")
<\/a><\/p>\nJenkins automation tool installation and configuration with Apache2 as a reverse proxy on Ubuntu 18.04 has completed successfully.<\/p>\n
References<\/h2>\n
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- If you have multiple java version on your system, change the default java version using the command below.<\/li>\n<\/ul>\n
![\"Install](\"https:\/\/www.howtoforge.com\/images\/how_to_install_jenkins_automation_server_with_apache_on_ubuntu_1804\/big\/1.png\" "\\"\\"")
<\/a><\/p>\n