To create an environment, pick a name that's unique in your repository. For this example let's call it test.
The environment represents a cluster of AWS instances running Kubernetes on CoreOS, which share keys, credentials, and a configuration.
ansible-playbook -e cluster=test,coreow,aws -i hosts make-environment.yaml will create your environment for you,
including a new SSH keypair test-key and test-key.pub.
This keypair is saved in your ~/.ssh directory, and also copied to your environment's secret-files and public-files directories.
Once your environment is set up, change to its directory, for example, cd test.
If you wish to share your environment, configurations, and secrets with others, Do your setup, then encrypt your secrets and push the results to the shared git repo (e.g. on GitHub). Another team member can clone your repo and add the environment's vault-password file, then decrypt the secrets. See Sharing Secrets for more information.