Install Docker Engine | Install Docker Compose

Login to your Linux Server.

Create this directories.

mkdir ~/jenkins
mkdir ~/certs
mkdir ~/nginx/conf.d

Inside your nginx/conf.d/ directory create the jenkins.conf file:

ubuntu@IT-Jenkins:~/nginx/conf.d$ touch jenkins.conf

Copy this code to the jenkins.conf file:

server {
    listen 80;
    server_name <server.domain.com>;

    location / {

        proxy_pass <http://jenkins:8080>;
    }
}

Create Working Directory

ubuntu@IT-Jenkins:~$ mkdir jenkins-env

Inside your working directory create the docker-compose.yml file:

ubuntu@IT-Jenkins:~/jenkins-env$ touch jenkins-config.yml

Copy this code to the docker-compose.yml:

version: '3.3'
services:
  jenkins:
    image: "jenkins/jenkins:lts"
    user: root
    expose:
      - 8080
    ports:
      - 50000:50000
    container_name: it-jenkins
    volumes:
      - ~/jenkins:/var/jenkins_home
      - /var/run/docker.sock:/var/run/docker.sock
      - /usr/local/bin/docker:/usr/local/bin/docker
    networks:
      - jenkins_nw
    restart: unless-stopped
  nginx:
    image: "nginx:latest"
    links:
      - "jenkins"
      - "jenkins:jenkinssvc"
    ports:
      - "80:80"
      - "443:443"
    container_name: it-nginx
    volumes:
      - ~/certs:/etc/ssl
      - ~/nginx/conf.d:/etc/nginx/conf.d
      - /var/run/docker.sock:/tmp/docker.sock:ro
    networks:
      - jenkins_nw
    depends_on:
      - jenkins
    restart: unless-stopped

networks:
  jenkins_nw:
    driver: bridge

Bring the Environment up by executing the following command on a terminal:

ubuntu@IT-Jenkins:~/jenkins-env$ docker-compose up -d
Creating network "jenkins-env_jenkins_nw" with driver "bridge"
Creating it-jenkins ... done
Creating it-nginx   ... done

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Open and Unlock Jenkins

Open your browser and type your server IP or DNS. (For example http://it-jenkins.argus-sec.com)

To ensure Jenkins is securely set up by the administrator, a password has been written to the log and this file on the server: /var/jenkins_home/secrets/initialAdminPassword

To retrieve the admin password , Log in to the Jenkins container:

ubuntu@IT-Jenkins:~/jenkins-env$ docker exec -it it-jenkins /bin/bash

In the Jenkins container open the file initialAdminPassword:

cat /var/jenkins_home/secrets/initialAdminPassword

Copy the password to your clipboard, Exit the container and paste it in to your jenkins setup page.

Complete the Jenkins setup.

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Configure your Jenkins to use SSL Certificate

Using your certificates:

• Copy your certificates (cert.key, cert.pem) to your ~/certs folder.

Change your nginx config file:

• Go to your ~/nginx/conf.d folder and change the jenkins.conf file to support ssl by coping this code below.

server {
    listen 443 ssl;
    server_name it-jenkins.argus-sec.com;

    ssl_certificate /etc/ssl/jenkins.crt;
    ssl_certificate_key /etc/ssl/jenkins.key;

    ssl_session_cache  builtin:1000  shared:SSL:10m;
    ssl_protocols  TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers HIGH:!aNULL:!eNULL:!EXPORT:!CAMELLIA:!DES:!MD5:!PSK:!RC4;
    ssl_prefer_server_ciphers on;
    location / {

        proxy_pass http://jenkins:8080;
    }
}

Make sure the syntax is OK:

ubuntu@IT-Jenkins:~/nginx/conf.d$ docker exec it-nginx nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful

Restart Nginx server:

 ubuntu@IT-Jenkins:~/nginx/conf.d$ docker exec it-nginx nginx -s reload

Login to your server using https: