Installation of Docker created bridge docker0 and cut my existing br0 bring from outside world. I’ve tried to connect Docker containers to br0 using following recipe.

See: Bridge the Docker containers to external network

sudo vim /etc/default/docker
DOCKER_OPTS="--bridge=br0 --fixed-cidr= --default-gateway="
sudo service docker restart

Little helpers:

sudo brctl show
docker network ls
docker network inspect
docker network inspect bridge

vim docker-compose.yaml
    driver: bridge

vim /etc/docker/daemon.json
  "bridge": "br0"