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HA in Proxmox LXC

NOT WORKING!

Prepare CT

Create CT

  • Hostname: hassio
  • Template: debian-10-standard..
  • Root Disk:
    • Storage: local-zfs
    • Disk size (GiB): 2
    • Mount optionas: noatime
  • CPU: 1
  • Memory:
    • Memory (MiB): 512
    • Swap (MiB): 512

Options

  • Unprivileged container: Yes
  • Features: Nesting, keyctl (needed to run Docker in unprivileged container)

Resources

Docker cannot use features of ZFS filesystem and it failsback to very inefficient vfs storage driver. To workaround, Docker needs well supported filesystem.

  • Add
    • Mountpoint
      • Storage: local (DIR type storage, to emulate any block device in file)
      • Disk size (GiB): 2
      • Path: /var/lib/docker
      • Mount options: noatime

Host shell

Modify CT config: 

lxc.cgroup.devices.allow: a
lxc.cap.drop:

Install HA

apt-get update && apt-get dist-upgrade
reboot
 
apt-get install curl network-manager apparmor jq
curl -sSL https://get.docker.com | bash 
 
# Downgrade docker
apt-get install docker-ce=5:18.09.9~3-0~debian-buster
apt-get install docker-ce-cli=5:18.09.9~3-0~debian-buster
echo "docker-ce hold" | dpkg --set-selections
echo "docker-ce-cli hold" | dpkg --set-selections
curl -sL https://raw.githubusercontent.com/home-assistant/supervised-installer/master/installer.sh | bash -s -- -m qemux86-64

issue

container init caused "write sysctl key kernel.domainname: open /proc/sys/kernel/domainname: permission denied"": unknown")

apt-get install docker-ce=5:18.09.9~3-0~debian-buster
apt-get install docker-ce-cli=5:18.09.9~3-0~debian-buster
echo "docker-ce hold" | dpkg --set-selections
echo "docker-ce-cli hold" | dpkg --set-selections