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Northwestern Cloudbees Jenkins Instance Template

This repository contains a cloudformation template for creating a stack to run Cloudbees Jenkins.

It creates two resources, a security group that by default allows inbound SSH from all Northwestern subnets, and an EC2 instance. The EC2 instance will by default launch into the subnet created specifically for these jenkins hosts and will have the EC2 systems manager agent installed and enabled.

The stack has the following parameters:

  • Subnet: The id of the subnet to launch into. Defaults to the nit-jenkins-PvtAZ1 subnet.
  • VPC: The id of the vpc to launch into. Defaults to the nit-shared-svcs vpc.
  • KeyName: Name of an existing EC2 Keypair within the region where the stack is being launched
  • InstanceType: allowed values are t2.micro or t2.large. Default is t2.micro.
  • InstanceAMI: The AMI to use for the instances. Default is Ubuntu 16.04 64-bit (ami-10547475 in us-east-2).
  • InstanceProfile: The IAM role/instance profile to attach to the instance. Defaults to the jenkins-admin role in the NIT shared services account.
  • Environment: for the Environment tag. Allowed values are Test, Staging, Production. Defaults to Test.
  • Owner: For the Owner tag. Defaults to cloudoperations@northwestern.edu.

E.g. to launch as a stack using the CLI (note that not all parameters are supplied below; any not specified will receive the default value):

aws cloudformation create-stack --stack-name <stack name> --template-body file://jenkins-ec2-instance.yaml --parameters \
ParameterKey=InstanceType,ParameterValue=<instance type> \
ParameterKey=KeyName,ParameterValue=<keypair name> \
ParameterKey=Environment,ParameterValue=<environment>