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This guide covers LXD VM host setup, management, and networking in MAAS.
Install & configure LXD
LXD setup is straightforward.
Remove old LXD versions
sudo apt-get purge -y *lxd* *lxc*
sudo apt-get autoremove -y
Install & initialize LXD
sudo snap install lxd
sudo snap refresh
sudo lxd init
- Clustering:
no - Storage:
dir - MAAS Connection:
no - Existing Bridge:
yes(br0) - Trust Password: Provide a password
Disable DHCP for LXD’s bridge
lxc network set lxdbr0 dns.mode=none
lxc network set lxdbr0 ipv4.dhcp=false
lxc network set lxdbr0 ipv6.dhcp=false
Add a VM host
UI
- KVM > LXD > Add LXD host > Enter Name, LXD address and select Generate new certificate
- Run the provided command in the terminal to add trust.
- Check authentication > Add new project | Select existing project > Save LXD host.
CLI
maas $PROFILE vm-hosts create type=lxd power_address=$LXD_ADDRESS project=$PROJECT_NAME
Manage VMs
Virtual machines are needed for any VM host.
Move VMs between projects
lxc move $VM_NAME $VM_NAME --project default --target-project $PROJECT_NAME
Add VMs
UI
KVM > VM host name > Add VM > Name > Cores > RAM > Disks > Compose machine
CLI
maas $PROFILE vm-host compose $VM_HOST_ID cores=4 memory=8G disks=1:size=20G
Remove VMs
UI
Machine > (Select machines) > Delete > Delete machine
CLI
maas $PROFILE machine delete $SYSTEM_ID
Set up a bridge
You can set up bridges easliy at the command line or via Netplan.
Configure a bridge at the command line
INTERFACE_ID=$(maas $PROFILE machine read $SYSTEM_ID | jq .boot_interface.id)
BRIDGE_ID=$(maas $PROFILE interfaces create-bridge $SYSTEM_ID name=br0 parent=$INTERFACE_ID | jq .id)
maas $PROFILE interface link-subnet $SYSTEM_ID $BRIDGE_ID subnet=$SUBNET_ID mode="STATIC" ip_address="10.0.0.101"
Configure a bridge with Netplan
Edit /etc/netplan/50-cloud-init.yaml, then apply:
sudo netplan apply
Last updated 5 days ago.