Jenkins Setup

README.md

1. Update JAVA_ARGS:

sudo vim /etc/default/jenkins
# update to:
# JAVA_ARGS="-Xmx1648m -XX:MaxPermSize=756m -Djava.awt.headless=true"
sudo /etc/init.d/jenkins restart

1. Update the interface:
2. Check the Blue Ocean (BlueOcean Aggregator) plugin
3. Check Monitoring plugin
4. Click Download now and install after restart
5. Check Restart Jenkins when installation is complete and no jobs are running
6. Go to main page
7. Click Open Blue Ocean

Restart jenkins:

sudo su
service jenkins restart

enable_docker_on_master.sh

# Ubuntu 18.04 LTS
# Master node

sudo groupadd docker
sudo usermod -aG docker jenkins # or Jenkins, depends on what name you chose
newgrp docker
sudo service docker restart
sudo service jenkins restart

install_jenkins_agent.sh

# Ubuntu 18.04 LTS
# Agent (see https://linuxacademy.com/blog/devops/adding-a-jenkins-agent-node/)

echo "
#!/bin/bash
set -x

echo '--------------------------updating--------------------------'
sudo apt update
sudo apt install -y nodejs npm

mkdir -p /home/ubuntu/jenkins

# install java
echo '--------------------------installing java & psql--------------------------'
sudo apt install -y openjdk-8-jdk
sudo apt install -y postgresql-client

# install docker
echo '--------------------------installing docker, it will work after log out and relog in--------------------------'
sudo apt install -y apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository 'deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable'
sudo apt update
sudo apt install -y docker-ce
sudo usermod -aG docker ubuntu  # ${USER}

sudo systemctl start docker
sudo systemctl status docker

sudo curl -L https://github.com/docker/compose/releases/download/1.21.2/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose

sudo chmod +x /usr/local/bin/docker-compose

" > /home/ubuntu/install.sh

chmod +x /home/ubuntu/install.sh

/home/ubuntu/install.sh


echo "...public key" >> /home/ubuntu/.ssh/authorized_keys

install_jenkins_master.sh

# Ubuntu 18.04 LTS
# Master node

echo "
#!/bin/bash
set -x

echo '--------------------------updating--------------------------'
sudo apt update

# install java jre
echo '--------------------------installing java--------------------------'
sudo apt install -y openjdk-8-jre-headless

# install Jenkins
echo '--------------------------installing jenkins--------------------------'
wget -q -O - https://pkg.jenkins.io/debian/jenkins.io.key | sudo apt-key add -
sudo sh -c 'echo deb http://pkg.jenkins.io/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list'
sudo apt update
sudo apt install -y jenkins
sudo systemctl start jenkins

# jenkins password
echo '--------------------------jenkins password--------------------------'

echo '--------------------------jenkins password--------------------------' > output.txt

sudo bash -c 'cat /var/lib/jenkins/secrets/initialAdminPassword >> output.txt'

# jenkins ssh
echo '--------------------------jenkins ssh--------------------------'

sudo su - jenkins -c 'ssh-keygen'

echo '
--------------------------jenkins ssh ,append this to agent /home/ubuntu/.ssh/authorized_keys, make sure not to copy any line breaks--------------------------' >> output.txt

sudo bash -c 'cat /var/lib/jenkins/.ssh/id_rsa.pub >> output.txt'

echo '
--------------------------jenkins ssh private key, add it to jenkins web credentials (username (ubuntu) with private key (id_rsa))--------------------------' >> output.txt

sudo bash -c 'cat /var/lib/jenkins/.ssh/id_rsa >> output.txt'

" > /home/ubuntu/install.sh

chmod +x /home/ubuntu/install.sh

/home/ubuntu/install.sh