Xen

Manage Domains

$ sudo xl console <host name>                       # <CTRL> ']' to detach
$ sudo xl create /etc/xen/<host name>.cfg -c        # Boot guest domain [1]
$ sudo xl list
$ sudo xl shutdown <host name>

Notes:

1. -c attach console as soon as machine starts

Build New Guest

$ sudo xen-create-image --mac 20:00:00:00:00:XX \
                        --hostname <host name> \
                        --password <password>

    Options:
                        --accounts                      # Copy all non-system accounts to guest system
                        --boot                          # Boot after creating
                        --force                         # Force overwriting existing images
                        --password=<passphrase>         # Set root password for new guestq
    Defaults:
        lvm             = xen-a-vg
        install-method  = debootstrap
        size            = 50G
        memory          = 2048M
        swap            = 2048M
        fs              = ext3
        dist            = ubuntu/xenial                 # Dom0 Distro
        image           = sparse
        dhcp            = 1
        bridge          = xenbr0
        passwd          = 0                             # Prompt for root password
        accounts        = 1                             # Copy host accounts to guest
        arch            = amd64
        apt-proxy       = http://apt-cache.rled-shop.lan:3142

# Configure Normal User
$ adduser <username>
$ usermod -aG sudo <username>
$ usermod -aG docker <username>                 # If using docker
$ ssh-copy-id -i ~/.ssh/<key> <user>@<host>

Notes:

1. Take about 6 minutes to build a new image

2. Config files (hostname.cfg) saved in /etc/xen

Delete Guest

# Delete Disk Image
$ sudo lvremove /dev/xen-a-vg/<host name>-disk
$ sudo lvremove /dev/xen-a-vg/<host name>-swap

# Delete Config
$ sudo rm /etc/xen/<host name>.cfg

References

1. Build Xen Guest using Xen-Tools

2. Xen Tools