heat-agents/doc/source/install/hooks/docker-compose.rst

docker-compose

A hook which uses docker-compose to deploy containers.

A special input env_files can be used with SoftwareConfig and StructuredConfig for docker-compose env_file key(s). If any env_file keys specified in docker-compose.yml do not exist in the input_values supplied, docker-compose will throw an error, as it can't find these files.

Also, the --parameter-file option can be used to pass env files from the client.

Example:

$ openstack stack create test_stack -t example-docker-compose-template.yaml \
   --parameter-file env_file_0=./common.env \
   --parameter-file env_file_1=./apps/web.env \
   --parameter-file env_file_2=./test.env \
   --parameter-file env_file_3=./busybox.env