Three services (base, intermediate, and top) with intermediate depending on base, and
top depending on intermediate (and optionally base through the network_mode: service:base).
intermediate has network_mode: service:base and depends_on condition
service_healthy with respect to base. We have configured intermediate to eventually
exit 1 when its default command is run.
top had depends_on service_healthy for intermediate.
The expectation is that since the intermediate container errors out exit 1, the top
container will not start because clearly the intermediate container is unhealthy.
However we see that the intermediate container does start.
The bug seems to only occur when the intermediate container has a network_mode: service:base.
Run this command:
docker-compose down && docker-compose run --rm top; docker-compose logs -t --no-color | sort -u -k 3