Home Docker Updates

I still use Docker at home to run local services, but over time I’ve been making tweaks, moving services around, and upgrading hardware.

What I have now is:

  • A physical fanless “scooter computer“ running Windows Server 2016 with Hyper-V enabled.
  • A single Hyper-V VM Ubuntu Minimal Server running Docker CE.

The fanless machine has cut down the noise levels in my home office, as well as drawing a little less power than the machine I had before.

I changed the Docker host OS from CentOS to Ubuntu, as I had a couple of weird cases where containers would die without explanation on CentOS. I tried Ubuntu and the problem went away. I didn’t bother investigating further.

My docker-compose.yml

This hasn’t changed much since my previous post, but I have now moved Plex to be a container too. Here’s the full compose file:

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version: '3'
services:
  pihole:
    image: diginc/pi-hole:debian
    container_name: pihole
    ports:
      - 192.168.0.11:53:53/tcp
      - 192.168.0.11:53:53/udp
      - 192.168.0.11:80:80/tcp
    cap_add:
      - NET_ADMIN
    environment:
      - DNS1=8.8.8.8
      - DNS2=8.8.4.4
      - ServerIP=192.168.0.11
      - WEBPASSWORD=Not4U2See
    restart: always
  dhcp:
    image: networkboot/dhcpd
    container_name: dhcp
    volumes:
      - /opt/docker/data/dhcp:/data
    network_mode: host
    restart: always
  plex:
    image: plexinc/pms-docker
    container_name: plex
    volumes:
      - /opt/docker/data/plex:/config
      - /mnt/media:/data
    ports:
      - 32400:32400/tcp
      - 3005:3005/tcp
      - 8324:8324/tcp
      - 32469:32469/tcp
      - 1900:1900/udp
      - 32410:32410/udp
      - 32412:32412/udp
      - 32413:32413/udp
      - 32414:32414/udp
    environment:
      - ADVERTISE_IP="http://192.168.0.10:32400/"
      - PLEX_CLAIM=claim-Not4U2See
    restart: always
    network_mode: "host"
  couchpotato:
    build:
      context: /opt/docker/dockerfiles/couchpotato/
    container_name: couchpotato
    volumes:
      - /opt/docker/data/couchpotato/:/datadir
      - /mnt/media/:/media
    ports:
      - 192.168.0.15:80:5050
    environment:
      - CP_UID=5000
      - CP_GID=5000
    restart: always
  sickbeard:
    build:
      context: /opt/docker/dockerfiles/sickbeard/
    container_name: sickbeard
    volumes:
      - /opt/docker/data/sickbeard/:/datadir
      - /mnt/media/:/media
    ports:
      - 192.168.0.16:80:8081
    environment:
      - SICKBEARD_UID=5000
      - SICKBEARD_GID=5000
    restart: always
  poste:
    image: analogic/poste.io
    container_name: poste
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /opt/docker/data/poste/:/data
    ports:
      - 192.168.0.17:25:25
      - 192.168.0.17:80:80
      - 192.168.0.17:110:110
      - 192.168.0.17:143:143
      - 192.168.0.17:443:443
      - 192.168.0.17:465:465
      - 192.168.0.17:587:587
      - 192.168.0.17:993:993
      - 192.168.0.17:995:995
    restart: always
  gogs:
    image: gogs/gogs
    container_name: gogs
    ports:
      - 192.168.0.18:22:22/tcp
      - 192.168.0.18:80:3000
    volumes:
      - /opt/docker/data/gogs/:/data
    restart: always

Multi Network Adapter Configuration for Ubuntu

The one thing I’m so glad that has been added to Ubuntu is the support for netplan. To make my life easier with opening ports like 443 for multiple containers, I just use multiple IP Addresses, which is easily defined as an array in /etc/netplan/01-netcfg.yml:

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# This file describes the network interfaces available on your system
# For more information, see netplan(5).
network:
  version: 2
  renderer: networkd
  ethernets:
    eth0:
      dhcp4: no
      dhcp6: no
      addresses: [192.168.0.10/24,192.168.0.11/24,192.168.0.12/24,192.168.0.13/24,192.168.0.14/24,192.168.0.15/24,192.168.0.16/24,192.168.0.17/24,192.168.0.18/24,192.168.0.19/24]
      gateway4: 192.168.0.1
      nameservers:
        addresses: [192.168.0.3,192.168.0.4]
        search: [example.local]

And then applying the changes:

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sudo netplan apply

And then I can bind containers to those addresses, should they need their own separate IP from the host (very handy for the poste machine).

Updating Containers

Periodically I update my containers by just removing them, pulling down their latest images, and starting them all up again:

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cd /opt/docker/compose/
sudo docker-compose stop
sudo docker-compose rm
sudo docker-compose pull
sudo docker-compose up -d