--- # default config for ec2 instances instance_type: c4.8xlarge security_group: client-tests image: ami-9eaa1cf6 region: us-east-1 keypair: christoph # limit access to AWS to these clients in CDIR notation ip_access_range: 0.0.0.0/0 project_description: https://github.com/ethereum/tests total_no_instances: 3