Create LXD instance from a specific snapshot.
Stop vm-example-<strong>source</strong> instance.
$ sudo lxc stop vm-example-source
Create snaphot starting-point for vm-example-source instance.
$ sudo lxc snapshot vm-example-source starting-point
Inspect vm-example-source instance.
$ sudo lxc info vm-example-source
Name: vm-example-source Location: none Remote: unix:// Architecture: x86_64 Created: 2020/07/28 21:27 UTC Status: Stopped Type: container Profiles: default, kubernetes Snapshots: starting-point (taken at 2020/07/29 08:12 UTC) (stateless)
Start vm-example-source instance as snapshot was successfully created.
$ sudo lxc start vm-example-source
Create vm-example-target instance using starting-point snaphot from vm-example-source instance.
$ sudo lxc copy vm-example-source/starting-point vm-example-target
Inspect vm-example-target instance.
$ sudo lxc info vm-example-target
Name: vm-example-target Location: none Remote: unix:// Architecture: x86_64 Created: 2020/07/29 08:18 UTC Status: Stopped Type: container Profiles: default, kubernetes
Start vm-example-target instance.
ansible@kraken:~$ sudo lxc start vm-example-target
List both instances.
ansible@kraken:~$ sudo lxc list kubernetes-example
+---------------------------+---------+----------------------+------+-----------+-----------+ | NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS | +---------------------------+---------+----------------------+------+-----------+-----------+ | vm-example-source | RUNNING | 172.17.0.1 (docker0) | | CONTAINER | 1 | | | | 172.16.40.38 (eth0) | | | | +---------------------------+---------+----------------------+------+-----------+-----------+ | vm-example-target | RUNNING | 172.17.0.1 (docker0) | | CONTAINER | 0 | | | | 172.16.40.115 (eth0) | | | | +---------------------------+---------+----------------------+------+-----------+-----------+
This technique is very useful for bug finding or testing.