Additional property app is not allowed

[Villiem]

It seems docker-compose.yml uses docker version 1 which has been deprecated. V2 and up require a version line at the top.

version: "3.9" # optional since v1.27.0 services: web: build: . ports: - "8000:5000" volumes: - .:/code - logvolume01:/var/log depends_on: - redis redis: image: redis volumes: logvolume01: {}

My suggestion is to update de .yml to version 2 :D