Add route in docker compose - docker-compose

Question

I have VM with docker containers in a cloud.
It have 2 containers: wireguard and redmine.
I have LDAP-authorization in redmine.
LDAP-server locates in private LAN (behind NAT), and I have VPN via wireguard to this LAN.
I need add route in Redmine-container so that redmine has access to a private LAN via Wireguard-container.
Now I make it by hand after containers start I write docker-compose exec redmine ip route add 192.168.42.0/23 via 172.20.0.50
Could you advice me, how implement it to my pipeline?
P.S. redmine-container already has entrypoint and cmd directives in Dockerfile.
version: '3.9'
services:
wireguard:
image: linuxserver/wireguard
cap_add:
- NET_ADMIN
- SYS_MODULE
volumes:
- ./wireguard-config:/config
- /lib/modules:/lib/modules
networks:
default:
ipv4_address: 172.20.0.50
sysctls:
- net.ipv4.conf.all.src_valid_mark=1 # for clients mode
restart: unless-stopped
postgres:
image: postgres:14.2-alpine
volumes:
- postgres-data:/var/lib/postgresql/data
environment:
- 'POSTGRES_PASSWORD=MySUperSecret'
- 'POSTGRES_DB=redmine'
redmine:
image: redmine:5.0.1-alpine
cap_add:
- NET_ADMIN
volumes:
- redmine-files:/usr/src/redmine/files
- ./redmine-plugins:/usr/src/redmine/plugins
- ./configuration.yml:/usr/src/redmine/config/configuration.yml
ports:
- 80:3000
depends_on:
- postgres
environment:
- 'REDMINE_DB_POSTGRES=postgres'
- 'REDMINE_DB_DATABASE=redmine'
- 'REDMINE_DB_PASSWORD=MySUperSecret'
- 'REDMINE_PLUGINS_MIGRATE=true'
restart: unless-stopped
networks:
default:
ipam:
config:
- subnet: 172.20.0.0/24
volumes:
postgres-data:
redmine-files:

Answer 1

I solve my problem:
services:
wireguard:
image: linuxserver/wireguard
cap_add:
- NET_ADMIN
- SYS_MODULE
ports:
- 3000:3000
environment:
- TZ=Europe/Moscow
volumes:
- ./wireguard-config:/config
- /lib/modules:/lib/modules
sysctls:
- net.ipv4.conf.all.src_valid_mark=1 # for clients mode
restart: unless-stopped
postgres:
image: postgres:14.2-alpine
volumes:
- postgres-data:/var/lib/postgresql/data
environment:
- 'POSTGRES_PASSWORD=MySUperSecret'
- 'POSTGRES_DB=redmine'
redmine:
image: redmine:5.0.2-alpine
network_mode: service:wireguard
volumes:
- redmine-files:/usr/src/redmine/files
- ./redmine-plugins:/usr/src/redmine/plugins
- ./configuration.yml:/usr/src/redmine/config/configuration.yml
# ports:
# - 80:3000
depends_on:
- postgres
environment:
- 'REDMINE_DB_POSTGRES=postgres'
- 'REDMINE_DB_DATABASE=redmine'
- 'REDMINE_DB_PASSWORD=MySUperSecret'
- 'REDMINE_PLUGINS_MIGRATE=true'
restart: unless-stopped
volumes:
postgres-data:
redmine-files: