Docker Jenkins

download-docker-compose.sh

cd /usr/local/bin
wget https://github.com/docker/compose/releases/download/1.13.0/docker-compose-Linux-x86_64
mv docker-compose* docker-compose
chmod +x docker-compose

download-jenkins-swarm-client.sh

sudo -s
mkdir -p /usr/local/jenkins
cd /usr/local/jenkins
wget https://repo.jenkins-ci.org/releases/org/jenkins-ci/plugins/swarm-client/3.7/swarm-client-3.7.jar # Make sure you're using the correct version!
touch swarm.sh
chmod +x swarm.sh

download-vegeta.sh

cd /usr/local/bin
wget https://github.com/tsenart/vegeta/releases/download/v6.3.0/vegeta-v6.3.0-linux-amd64.tar.gz
tar xf *.gz
rm *.gz

install-docker.sh

# Install Docker
curl -sSL https://get.docker.com/ | sh

# Add user to Docker group... 
sudo usermod -aG docker $(whoami)

install-java-8.sh

sudo apt install openjdk-8-jdk

jenkins.service

# This should go into /etc/systemd/system/jenkins.service

[Unit]
Description=Jenkins
After=network.target

[Service]
User=$(whoami) # Replace this with a valid username
Restart=always
Type=simple
ExecStart=/usr/local/jenkins/swarm.sh

[Install]
WantedBy=multi-user.target

run-jenkins-container.sh

mkdir ~/jenkins
cd ~/jenkins
docker run -d --name jenkins -p 8080:8080 -p 50000:50000 -v $(pwd):/var/jenkins_home --restart always jenkins/jenkins:lts

start-jenkins-service.sh

systemctl enable jenkins
systemctl start jenkins

swarm.sh

# This should go into /usr/local/jenkins/swarm.sh

#!/bin/bash
cd $(dirname $0)

JENKINS_IP="10.0.0.1"
USERNAME="admin"
PASSWORD="12345678"

# $(hostname) will be the name that appears in Jenkins UI
# -executors is the number of concurrent tasks that it can handle from Jenkins
# -labels is the name of the node
# -master is the ip addess of the Jenkins Master
java -jar swarm-client-3.7.jar -name "$(hostname)" -executors 8 -labels docker -master "http://$JENKINS_IP:8080" -username "$USERNAME" -password "$PASSWORD" -fsroot /tmp

switch-to-docker-group.sh

# ...and switch to the new group
newgrp docker

tail-jenkins-logs.sh

docker logs -f jenkins

test-run-swarm.bash

me@jenkins-agent-1:/usr/local/jenkins$ ./swarm.sh
Sep 28, 2018 8:22:44 AM hudson.plugins.swarm.Client main
INFO: Client.main invoked with: [-name jenkins-agent-1 -executors 8 -labels docker -master http://$jenkins_master_ip:8080 -username $username -password $password -fsroot /tmp]
Sep 28, 2018 8:22:45 AM hudson.plugins.swarm.Client run
INFO: Discovering Jenkins master
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Sep 28, 2018 8:22:45 AM hudson.plugins.swarm.Client run
INFO: Attempting to connect to http://$jenkins_master_ip:8080/ secret with ID anid
Sep 28, 2018 8:22:46 AM hudson.remoting.jnlp.Main createEngine
INFO: Setting up agent: jenkins-agent-1-5cbaa68d
Sep 28, 2018 8:22:46 AM hudson.remoting.jnlp.Main$CuiListener <init>
INFO: Jenkins agent is running in headless mode.
Sep 28, 2018 8:22:46 AM hudson.remoting.Engine startEngine
WARNING: No Working Directory. Using the legacy JAR Cache location: /home/me/.jenkins/cache/jars
Sep 28, 2018 8:22:46 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Locating server among [http://ip_address:8080/]
Sep 28, 2018 8:22:46 AM org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver resolve
INFO: Remoting server accepts the following protocols: [JNLP4-connect, Ping]
Sep 28, 2018 8:22:46 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Agent discovery successful
  Agent address: jenkins_agent_address
  Agent port:    50000
  Identity:      secret
Sep 28, 2018 8:22:46 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Handshaking
Sep 28, 2018 8:22:46 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to 188.166.10.76:50000
Sep 28, 2018 8:22:46 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Trying protocol: JNLP4-connect
Sep 28, 2018 8:22:47 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Remote identity confirmed: secret
Sep 28, 2018 8:22:48 AM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connected