Docker on OpenWRT, is this tutorial still valid?

Installing and Using OpenWrt
1

After Installing Docker I found

/etc/config/network

config interface 'docker'
        option device 'docker0'
        option proto 'none'
        option auto '0'

config device
        option type 'bridge'
        option name 'docker0'

/etc/config/firewall

config zone 'docker'
        option input 'ACCEPT'
        option output 'ACCEPT'
        option forward 'ACCEPT'
        option name 'docker'
        list network 'docker'

They was not mentioned in:
Running PiHole on OpenWrt (x86/RPi) using Docker - Tutorial/Experiences

2

Mannshoch,

Did you also read the Docker Topic @ OpenWrt?
https://openwrt.org/docs/guide-user/virtualization/docker_host?s[]=docker

There network and firewall items are mentioned as you describe (podman instead of docker0).
And is maintained by people like you.

Regards, DG.

3

Thanks for the link.
do you know what an oci bundle or a veth pair is?

4

I plaxed around with docker according to Running PiHole on OpenWrt (x86/RPi) using Docker - Tutorial/Experiences


version: "3.3"

# More info at https://github.com/pi-hole/docker-pi-hole/ and https://docs.pi-hole.net/
services:
  pihole:
    container_name: pihole
    image: pihole/pihole:latest
    hostname: pihole
    environment:
       TZ: 'europa/zurich'
       WEBPASSWORD: 'RT67)IJN'
    # Volumes store your data between container upgrades
    volumes:
      - './pihole/etc-pihole/:/etc/pihole/'
      - './pihole/etc-dnsmasq.d/:/etc/dnsmasq.d/'
      - './pihole/var-log/:/var/log'
      - './pihole/etc-cont-init.d/10-fixroutes.sh:/etc/cont-init.d/10-fixroutes.sh'
    # Recommended but not required (DHCP needs NET_ADMIN)
    #   https://github.com/pi-hole/docker-pi-hole#note-on-capabilities
    cap_add:
      - NET_ADMIN
    restart: unless-stopped
#    ports:
#      - "53:535/tcp"
#      - "53:53/udp"
    networks:
      internal:
      lan:
        ipv4_address: 192.168.1.4

networks:
  internal:
  lan:
    name: lan
    driver: docker
    driver_opts:
      parent: docker0
    ipam:
      config:
        - subnet: 192.168.1.0/24
#   default:
#     name: docker

Now I get the error Plugin docker not found what does that mean?

5

driver should be macvlan. Not sure about the parent being docker0, I'm still on openwrt 21.02 x86_64.

6

network

config interface 'docker'
	option device 'docker0.20'
	option proto 'static'
	option auto '0'
	

config device
	option type 'bridge'
	option name 'docker0.20'
	option mode 'bridge'
	option acceptlocal 1
	
config router
	option interface 'docker0.20'
	option targer '192.168.1.2'
	option netmask '255.255.255.255'

firewall

config zone 'docker'
	option input 'ACCEPT'
	option output 'ACCEPT'
	option forward 'ACCEPT'
	option name 'docker'
	list network 'docker'

ERROR: invalid subinterface vlan name macvlan, example formatting is eth0.10

if I change it on docker-compose.yml

parents: docker0.20
I get:
ERROR: -o parent interface does was not found on the host: docker0

I never worked with VLAN until know.

7

Can you show your entire network file?

8

are you using official openwrt? this section seems invalid.

9

I have written the config my self. I copied the config from the link, I rewrote them. What ever I try the error message is the same.
I corrected the mentioned text errors and get the same error message.

10

Shouldn't that be 'target' instead?

DG.

11

Yes, as I wrote I corrected this error. also i removed the r in config router
the error:
ERROR: invalid subinterface vlan name macvlan, example formatting is eth0.10
is still the same.