Elasticsearch running on multi node docker containers - networking

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Hello.
I am looking for the best way to connect Docker running multiple elasticsearch instances running on two servers connected directly by fiber optic cable not using the Swarm mode (as this is not supported by Elasticsearch).

My docker-compose.yml on server 1:

version: '3.7'
services:
es01:
image: docker.elastic.co/elasticsearch/elasticsearch:7.2.0
container_name: es01
environment:
- node.name=es01
- node.master=true
- node.data=true
- discovery.seed_hosts=es02
- cluster.initial_master_nodes=es01,es02
- cluster.name=docker-cluster
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- esdata01:/usr/share/elasticsearch/data
ports:
- 9201:9200
networks:
- macvlan
es02:
image: docker.elastic.co/elasticsearch/elasticsearch:7.2.0
container_name: es02
environment:
- node.name=es02
- node.master=true
- node.data=true
- discovery.seed_hosts=es01
- cluster.initial_master_nodes=es01,es02
- cluster.name=docker-cluster
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- esdata02:/usr/share/elasticsearch/data
networks:
- macvlan

es03:
image: docker.elastic.co/elasticsearch/elasticsearch:7.2.0
container_name: es03
environment:
- node.name=es03
- node.master=false
- node.data=true
- discovery.seed_hosts=es01
- cluster.initial_master_nodes=es01,es02
- cluster.name=docker-cluster
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- esdata03:/usr/share/elasticsearch/data
networks:
- macvlan

volumes:
esdata01:
driver: local
esdata02:
driver: local
esdata03:
driver: local

networks:
macvlan:

My docker-compose.yml on server 2 is identical, just names are changed.
Nodes are connected by:

br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether d0:94:66:19:43:02 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.2/24 brd 192.168.1.255 scope global br0
valid_lft forever preferred_lft forever

iface br0 inet static
address 192.168.1.2
netmask 255.255.255.0
bridge_ports eth2 eth3
bridge_maxwait 0
pre-up ip addr flush dev br0 >/dev/null 2>&1 || true

Thanks for the suggestions!