How to create a network attached to a vlan interface in docker compose?

Question

ubuntu

There are several vlan interfaces: eth0.10, eth0.20, eth0.30.

Each vlan has its own gateway with different external ip.

It is necessary for different services in docker compose to issue different networks tied to vlan so that each service has its own gateway from vlan. Show an example of how this should be configured using 2x nginx as an example.

It is the gateway that is needed (so that outgoing requests from the container go through the specified vlan), port forwarding works on ports: "10.10.10.2:80:80", where 10.10.10.2 is the address on the vlan interface.

Answer 1

You need to use the macvlan network driver for docker. Here is a very good example
https://github.com/sarunas-zilinskas/docker-compos...

---
version: '2.4'
services:

  portainer:
    image: portainer/portainer
    container_name: portainer
    restart: always
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /path/to/data:/data 
    ports:
      - 8000:8000
      - 9000:9000
    networks:
      vlan:
        ipv4_address: 192.168.0.60

networks:
  dockervlan:
    #This interface should be defined as using null driver. Do not remove it.
    driver: null
    driver_opts:
      parent: eth0
    ipam:
      config:
        - subnet: "192.168.0.0/24"
          ip_range: "192.168.0.64/26"
          gateway: "192.168.0.1"
  dockervlan:
    #This is the interface which is used for containers networking
    driver: macvlan
    driver_opts:
      parent: eth0
    ipam:
      config:
        - subnet: "192.168.0.0/24"
          ip_range: "192.168.0.64/26"
          gateway: "192.168.0.1"