Cloud Deployment Manager supports templates written in either Python 2.7 or Jinja2. Python templates are more powerful, enabling programmatic creation and management of templates, ideal for those familiar with Python. Jinja2, while simpler and using YAML syntax, is less powerful, suited for straightforward templates without Python complexity. Reference: https://cloud.google.com/deployment-manager/docs/step-by-step-guide/create-a-template