Setup Jenkins and Tomcat server

Login to aws instance or VM and add user

useradd devops

passwd devops

Edit this file /etc/ssh/sshd_config and enable PasswordAuthentication

PasswordAuthentication yes

Restart SSHD Service

systemctl restart sshd

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Install java 1.8 version

yum install java-1.8* -y

Set java path : /root/.bash_profile

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.191.b12-0.amzn2.x86_64

echo $JAVA_HOME

source /root/.bash_profile

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Download Jenkins repo

Ref : https://docs.aws.amazon.com/aws-technical-content/latest/jenkins-on-aws/installation.html

 

wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins.io/redhat/jenkins.repo

rpm --import https://pkg.jenkins.io/redhat/jenkins.io.key

yum install jenkins -y 

service jenkins start   or  systemctl start jenkin

Open 8080 port 

http://localhost:8080/

Password location :  /var/lib/jenkins/secrets/initialAdminPassword

 

Secure Jenkins server

1. Change admin password

2. Remove the secret password file ( /var/lib/jenkins/secrets/initialAdminPassword )

3. Configure Global Security - Enable Security

4. Configure Global Security - Enable Project-based Matrix Authorization Strategy and role base Authorization

5. Configure Global Security - Disable SSH Server

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Install Maven & Git  installation and configuration 

 

Ref : https://maven.apache.org/download.cgi

 

Create maven folder in opt

Install wget and downloads below maven packages

wget http://mirrors.estointernet.in/apache/maven/maven-3/3.6.0/binaries/apache-maven-3.6.0-bin.tar.gz

###  /root/.bash_profile  ######

 

# User specific environment and startup programs

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.191.b12-0.amzn2.x86_64

 

M2_HOME=/opt/maven/apache-maven-3.6.0

M2=$M2_HOME/bin

PATH=$PATH:$JAVA_HOME:$HOME/.local/bin:$HOME/bin

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Select maven_invoker and github

 

And path in Global Tool Configuration

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Install Publish Over SSH  plugging for Ansible integration and send build artifacts over SSH

Download below tomcat package

wget http://mirrors.estointernet.in/apache/tomcat/tomcat-8/v8.5.38/bin/apache-tomcat-8.5.38.tar.gz

 

Ref : https://tomcat.apache.org/download-80.cgi

 

cd /opt/apache-tomcat-8.5.38/bin/      -----  After extract you  get this folder

 

chmod +x startup.sh  shutdown.sh     ----- Give execute permission to  startup.sh and  shutdown.sh 

 

 

Create soft link 

ln -s /opt/apache-tomcat-8.5.38/bin/startup.sh /usr/bin/tomcatup

ln -s /opt/apache-tomcat-8.5.38/bin/shutdown.sh /usr/bin/tomcatdown

 

Tomcatup   -------------------------   start tomcat

 

 ps -ef |grep tomcat   -----------------------  check tomcat is running or not

 

/opt/apache-tomcat-8.5.38/conf   ----------   go to conf directory and edit server.xml 

 

Edit server.xml and change tomcat port

 

 

Change 8080 to 8090

 

Restart tomcat

 

tomcatdown   --------------  stop the service

 

tomcatup      ---------------   start the service

URL : http://ServerIP:8090/manager/

Solution for above issue: 

 find / -name context.xml

/opt/apache-tomcat-8.5.38/conf/context.xml

/opt/apache-tomcat-8.5.38/webapps/host-manager/META-INF/context.xml

/opt/apache-tomcat-8.5.38/webapps/manager/META-INF/context.xml

 

Edit both the files and uncomment below line

Restart tomcat

 

tomcatdown   --------------  stop the service

 

tomcatup      ---------------   start the service

How to set user and password  add following roles

 

Edit this file /opt/apache-tomcat-8.5.38/conf/tomcat-users.xml

 

<role rolename="manager-gui"/>

<role rolename="manager-script"/>

<role rolename="manager-jmx"/>

<role rolename="manager-status"/>

<user username="admin" password="admin" roles="manager-gui, manager-script, manager-jmx, manager-status"/>

<user username="deployer" password="deployer_user" roles="manager-script"/>

<user username="tomcat" password="s321cret" roles="manager-gui"/><feff>

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