TASK

1. Create a Docker image, that will contain Jenkins installation;

2. For that installation, using Job DSL/Pipeline DSL, create a job-generator, that will provision Jenkins instance (same one, master) with JobX.

   JobX - a Jenkins job, that will deploy HTML page (Hello World) into Apache server (preferably Dockerized also) and run it.

   Final Jenkins image has to contain 1 job (Generator) to generate another job (JobX).

3. Start Jenkins container from create image and run JobX and display content of HTML page.

ADDITIONAL TASK

Deploy this setup to AWS:

• create basic resources for EC2 to run;
• create EC2 instance, provision it with Docker, run the custom Jenkins image from DockerHub;
• go to Step 3.

COMPLETED

1. Created docker image with jenkins from standard jenkins image from Docker Hub jenkins repository. The image is located in Docker Hub repository. The final version is rustamar/jenkins_generator:3

   Changes applied to image:

   • installed Job DSL, and Job Generator plugins
   • added private key for access to "apache" instance
   • created Generator job which loads configuration from current git repository (jenkins_pipeline/Jenkinsfile)

2. Created IaaC project in terraform. The project creates environment in AWS for current task

   Resources created in ECS:

   • VPC
   • Subnet
   • AMI roles for load balancer and ecs
   • Security Group
   • ALB, auto scaling group, ECS cluster, service, task for jenkins
   • ECS service and task for http. The service and task are located in the same cluster as jenkins
   • Key pair "admin" for access to the ECS instance

   Create environment

   • install terraform - https://www.terraform.io/intro/getting-started/install.html
   • cd to ecs folder
   • fill fields in sensitive.tf - https://www.terraform.io/intro/getting-started/build.html
   • run terraform plan
   • run terraform apply
   • output should show value for aws_alb.jenkins.dns_name. It is jenkins application url
   • check httpd server. Have to get value from get_httpd.sh script or AWS Web Console in instance parameters (IPv4 Public IP).
   • login to jenkins (admin/admin)
   • run Generator job
   • check httpd server again

3. Destroy environment in AWS run command terraform destroy. Answer yes and all resources should be removed