EC2 Bootstrap Example

Uses CloudFormation, cloud-init, and Ansible to provision and bootstrap three EC2 instances (an Ansible master node and two slave nodes)

The bootstrap process:

• Installs Ansible
• Download resources from S3
• Dynamically generates configuration files
• Clones a Git repository
• Executes an Ansible playbook to configure the other two slave instances

Prerequisites:

• AWS account
• AWS CLI
• IAM user with sufficient privileges + access key
• Run aws configure to set the desired region, access key, secret access key
• Create a key pair in the desired AWS region
• Download the private key
• Upload the private key to a S3 bucket (do not make public)

To Run:

• Edit create-stack.sh as necessary:
• EC2SshKey should match the name you gave to the key pair you created in AWS
• S3LocationOfPrivateKey is the fully qualified location of the private key stored in an S3 bucket
• GitHubRepository is the Git repository that contains the Ansible playbook you will run
• AnsiblePlaybook is the name of the Ansible playbook to run on the slave nodes
• See cfn-template.json for complete list of parameters
• Run ./create-stack.sh to provison and configure all resources.

Cleanup:

• When finished, run ./delete-stack.sh to tear down all resources.