Project2-Linux

Server 1: Git Server

Customer Clone Git codes and MOdify here, After they will push it to Github

Server 2: Jenkins Server

Install Git - yum install git
Java - yum install java-11 java-11-openjdk.x86_64

vi /root/.bash_profile

JAVA_HOME=/usr/lib/jvm/java-11

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

INstall jenkins

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

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

yum install jenkins -y

service jenkins start

http://ip:8080

Manage Jenkins > Global Tool Configuration > JDK > Add Jadk > unselect auto install > Paste the Jave home directory

> git > automatically execute git exe

> Maven > AddMaven > unselect auto install > Paste the Maven home directory >

Maven -

Ansible

Create an ansible server and setup SSH key and install ansible

Create two more ansible clients.

From ansible server "ssh-copy-id ansible@host1ip" to copy SSH keys to client machines

Connect Ansible servers to Jenkins

Manage Jenkins > Configure systems > at bottom "SSH Servers" > paste ansible server details "Us private IP address"

New Item > Deploy-on -ansible > copy from > "My First ansible Job" > Ok > Description: PAste any > Post build action > Send build artifact over ssh > Source file = webapp/target/*.war > Remove Prefix=webapp/target > remote directory=//home//ansible > Apply> Save

Create 2 ansible client servers

Install tomcat on both ansible servers

find / -name context.xml

vi ..../host-managet/META-INF/context.xml

comment 2 lines "<Value Class name="org......................................

allow="127....................................."

vi .../manager/META-INF/context.xml

comment 2 lines "<Value Class name="org......................................

allow="127....................................."

tomcat/bin/# ./sutdown.sh

tomcat/bin/# ./startup.sh

Now we can access tomcat page, but accessing manager asks for password which we didn't set so far. To set user access,

vi conf/tomcat-users.xml

cd tomcat/bin

tomcat/bin/# ./sutdown.sh

tomcat/bin/# ./startup.sh

Now create a playbook in ansible server to sync war file

---

hosts all

become yes

tass

-- name "Deploy war file into tomcat VMs of ansible hosts"

copy srcc=./webapp.war dest=/root/tomcat/webapps

ansible-playbook -i hosts playbookname.

Create New Project > "Deploy on container using ansible" > go down "Exec Command" = ansible-playbook -i hosts playbookname.yml >

Jenkins > Select Project > configuration >

Integrate Docker conteiner

yum install docker -y

service docker start

docker pull tomcat:latest //Pull OS images

docker run -td --name tomcat-container -p 8080:8080 tomcat:8.0

docker exec -it tomcat-container/bin/bash

cp -pr /usr/local/tomcat/webapps.dist/* /usr/local/tomcat/webapps/

My Practice

Git Server

Build EC2 server to install git server
Created an account at Github
Create a repository in Git
yum -y update
yum install git -y
git config --global user.name "Sherin"
git config --global user.email "sherinsha1@gmail.com"
git config --list
git init
git status
git commit -m "Test Git connection"
git remote add origin https://github.com/sherinsha1/Project2.git
git push -u origin master

Jenkins Server

CReate a new EC2 for Jenkins server

yum install java-11* //Setupbash profile

yum install git -y

yum install jenkins -y

Manage Jenkins > Global Tool Configuration > JDK > Add Jadk > Name=any, unselect auto install > Paste the Jave home directory > Apply> SAVE

Manage Jenkins > Manage Plugins > Available = "GitHub plugin "

Manage Jenkins > Global Tool Configuration > Git installations > Path to Git executable = /usr/bin/git > Apply > SAVE

Create a Job and try to build.

Setup Maven

cd /opt

wget https://dlcdn.apache.org/maven/maven-3/3.8.6/binaries/apache-maven-3.8.6-bin.tar.gz

tar -xvzf apache-maven-3.8.6-bin.tar.gz

mv apache-maven-3.8.6 maven

vi /root/.bash_profile

M2_HOME=/opt/maven

M2=/opt/maven/bin

PATH=$PATH:$HOME/bin:$JAVA_HOME:$M2_HOME

Manage Jenkins > Manage Plugins > Available = "Maven integration plugin "

Manage Jenkins > Global Tool Configuration >Maven > Name = Maven > MAVEN_HOME = /opt/maven > Apply > SAVE

Setup Ansible

yum install python python-pip

pip nstall ansible // In this method we cannot find ansible configuration file

useradd ansible

passwd ansible

visudo //or vi /etc/sudoers

Ansible ALL=(ALL) NOPASSWD: ALL

su ansible

ssh-keygen

Setup 2 ansible hosts

Run following in both servers:

yum -y update

useradd ansible

Password

visudoers

Ansible All=(All) NOPasswd:All

vi /etc/ssh/sshd_config

Password authentication: yes

service sshd restarrt

at ansible server::

ssh-keygen

ssh-copy-id ansible@ansiblehost-IP

ssh-copy-id ansible@ansiblehost2-IP

vi /etc/ansible/hosts

Paste hosts server IPs

#ansible all -m ping

INstall Tomcat in Ansible SLaves

yum install java-11* -y

wget https://dlcdn.apache.org/tomcat/tomcat-8/v8.5.83/bin/apache-tomcat-8.5.83.tar.gz

tar -xvzf apache-tomcat-8.5.83.tar.gz

mv apache-tomcat-8.5.83 tomcat

cd tomcat/bin

./startup.sh

Now we can access tomcat page using http://ip:8080 , but we cannoit access the manager page to get it modify following files

cd tomcat/

find ./ -name context.xml

vi ./webapps/host-manager/META-INF/context.xml and ./webapps/manager/META-INF/context.xml // Comment following lines

<!-- <Valve className="org.apache.catalina.valves.RemoteAddrValve"

allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" /> -->

vi tomcat/conf/tomcat-users.xml //Add following lines at the bottom

now we can access tomcat Manager *****

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