jenkins-server.yml

AWSTemplateFormatVersion: 2010-09-09

Description: >
  This Cloudformation Template creates a Nginx Server and Jenkins on EC2 Instance.
  Nginx Server and Jenkins will run on Amazon Linux 2 EC2 Instance with
  custom security group allowing HTTP(80, 8080) and SSH (22) connections from anywhere.

Parameters:
  KeyPairName:
    Description: Enter the name of your Key Pair for SSH connections.
    Type: AWS::EC2::KeyPair::KeyName
    ConstraintDescription: Must one of the existing EC2 KeyPair

Resources:
  DeployServerSecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupDescription: Enable SSH and HTTP for Jenkins Server
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: 80
          ToPort: 80
          CidrIp: 0.0.0.0/0
        - IpProtocol: tcp
          FromPort: 8080
          ToPort: 8080
          CidrIp: 0.0.0.0/0
        - IpProtocol: tcp
          FromPort: 22
          ToPort: 22
          CidrIp: 0.0.0.0/0
  DeployServer:
    Type: AWS::EC2::Instance
    Properties:
      ImageId: ami-0a8b4cd432b1c3063 # Amazon Linux 2 AMI (HVM) - Kernel 5.10, SSD Volume Type - ami-0a8b4cd432b1c3063 (64-bit x86) / ami-0b6705f88b1f688c1 (64-bit Arm)
      InstanceType: t2.micro
      KeyName: !Ref KeyPairName
      SecurityGroupIds:
        - !GetAtt DeployServerSecurityGroup.GroupId
      Tags:
        - Key: Name
          Value: !Sub Deploy Server of ${AWS::StackName}
        - Key: env
          Value: prod
      UserData:
        Fn::Base64: |
          #! /bin/bash
          # update os
          yum update -y
          # set deploy server hostname as deploy-server
          hostnamectl set-hostname deploy-server          
          # install git
          yum install git -y
          amazon-linux-extras install java-openjdk11 -y
          wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat/jenkins.repo
          rpm --import https://pkg.jenkins.io/redhat/jenkins.io.key
          amazon-linux-extras install epel -y
          # install jenkins
          yum install jenkins -y
          systemctl start jenkins
          # enable jenkins to start on boot 
          systemctl enable jenkins          
          systemctl status jenkins
          # install docker
          amazon-linux-extras install docker -y
          # start docker
          systemctl start docker
          # enable docker to start on boot
          systemctl enable docker
          # add ec2-user to docker group
          usermod -a -G docker ec2-user
          usermod -a -G docker jenkins
          systemctl daemon-reload
          systemctl restart docker
          # install nginx server
          amazon-linux-extras install nginx1.12
          # start nginx
          systemctl start nginx
          # enable reverse proxy in nginx.conf
          sed -i '48i proxy_pass http://localhost:3456/;' etc/nginx/nginx.conf
          # create docker image and run it
          docker pull devenes/weather-app:20
          docker run -d -p 3456:3456 --name weather-app devenes/weather-app:20
          systemctl restart nginx.service

Outputs:
  DeployServerDNS:
    Description: Deploy Server DNS Name
    Value: !Sub
      - ${PublicAddress}
      - PublicAddress: !GetAtt DeployServer.PublicDnsName
  DeployURL:
    Description: Deploy Server URL
    Value: !Sub
      - http://${PublicAddress}:8080
      - PublicAddress: !GetAtt DeployServer.PublicDnsName