docker_config:
step_1: {map_merge: {get_attr: [ServiceChain, role_data, docker_config, step_1]}}
step_2: {map_merge: {get_attr: [ServiceChain, role_data, docker_config, step_2]}}
docker_config:
step_1: {map_merge: {get_attr: [ServiceChain, role_data, docker_config, step_1]}}
step_2: {map_merge: {get_attr: [ServiceChain, role_data, docker_config, step_2]}}