Migrate virtual machines between different Proxmox VM clusters
Project description
Migrate VMs between different Proxmox VM clusters.
Migrating a virtual machine (VM) on a PVE-cluster from one node to another is implemented in the Proxmox Virtual Environment (PVE). But migrating a VM from one PVE-cluster to another is not.
proxmove helps you move VMs between PVE-clusters with minimal hassle.
usage: proxmove [-h] [-c FILENAME] [-n] [--version]
source destination nodeid storage vm [vm ...]
Migrate VMs from one Proxmox cluster to another.
positional arguments:
source alias of source cluster
destination alias of destination cluster
nodeid node on destination cluster
storage storage on destination node
vm one or more VMs (guests) to move
optional arguments:
-h, --help show this help message and exit
-c FILENAME, --config FILENAME
use alternate configuration inifile
-n, --dry-run stop before doing any writes
--version show program's version number and exit
Cluster aliases and storage locations should be defined in ~/.proxmoverc (or
see -c option). See the example proxmoverc.sample. It requires
[pve:CLUSTER_ALIAS] sections for the proxmox "api" URL and
[storage:CLUSTER_ALIAS:STORAGE_NAME] sections with "ssh", "path" and "temp"
settings.
Example run
First you need to configure ~/.proxmoverc; see below.
When configured, you can do something like this:
$ ./proxmove banana-cluster the-new-cluster node2 node2-ssd the-vm-to-move
12:12:27: Move banana-cluster<e1400248> => the-new-cluster<6669ad2c> (node 'node2'): the-vm-to-move
12:12:27: - source VM the-vm-to-move@node1<qemu/565/running>
12:12:27: - storage 'ide2': None,media=cdrom (blobsize=None)
12:12:27: - storage 'virtio0': sharedsan:565/vm-565-disk-1.qcow2,format=qcow2,iops_rd=4000,iops_wr=500,size=50G (blobsize=53705113600)
12:12:27: Creating new VM 'the-vm-to-move' on 'the-new-cluster', node 'node2'
12:12:27: - created new VM 'the-vm-to-move--MIGRATING' as UPID:node2:00005977:1F4D78F4:57C55C0B:qmcreate:126:user@pve:; waiting for it to show up
12:12:34: - created new VM 'the-vm-to-move--MIGRATING': the-vm-to-move--MIGRATING@node2<qemu/126/stopped>
12:12:34: Stopping VM the-vm-to-move@node1<qemu/565/running>
12:12:42: - stopped VM the-vm-to-move@node1<qemu/565/stopped>
12:12:42: Ejected (cdrom?) volume 'ide2' (none) added to the-vm-to-move--MIGRATING@node2<qemu/126/stopped>
12:12:42: Begin copy of 'virtio0' (sharedsan:565/vm-565-disk-1.qcow2,format=qcow2,iops_rd=4000,iops_wr=500,size=50G) to local-ssd
12:12:42: SCP copy from '/pool0/san/images/565/vm-565-disk-1.qcow2' (on sharedsan) to 'root@node2.the-new-cluster.com:/node2-ssd/temp/temp-proxmove/vm-126-virtio0'
Warning: Permanently added 'node2.the-new-cluster.com' (ECDSA) to the list of known hosts.
vm-565-disk-1.qcow2 100% 50GB 90.5MB/s 09:26
Connection to san.banana-cluster.com closed.
12:22:08,731: INFO: Temp data '/node2-ssd/temp/temp-proxmove/vm-126-virtio0' on local-ssd
12:22:08,936: INFO: Writing data from temp '/node2-ssd/temp/temp-proxmove/vm-126-virtio0' to '/dev/zvol/node2-ssd/vm-126-virtio0' (on local-ssd)
(100.00/100%)
Connection to node2.the-new-cluster.com closed.
12:24:25: Removing temp '/node2-ssd/temp/temp-proxmove/vm-126-virtio0' (on local-ssd)
12:24:26: Starting VM the-vm-to-move@node2<qemu/126/stopped>
12:24:27: - started VM the-vm-to-move@node2<qemu/126/running>
Before, the-vm-to-move was running on banana-cluster on node1.
Afterwards, the-vm-to-move is running on the-new-cluster on node2. The the-vm-to-move on the banana-cluster has been stopped and renamed to the-vm-to-move--MIGRATED.
Configuration
Set up the ~/.proxmoverc config file. You first need to define which clusters you have. For example banana-cluster and the-new-cluster.
; Example cluster named "banana-cluster" with 3 storage devices, one
; shared, and two which exist on a single node only.
[pve:banana-cluster]
api=https://user@pve:PASSWORD@banana-cluster.com:443
; Example cluster named "the-new-cluster" with 2 storage devices; both
; storage devices exist on the respective nodes only.
[pve:the-new-cluster]
api=https://user@pve:PASSWORD@the-new-cluster.com:443
And then it needs configuration for the storage devices. They are expected to be reached over SSH.
The following defines two storage devices for the banana-cluster, one shared and one local to node1 only.
If on sharedsan, the images are probably called something like /pool0/san/images/VMID/vm-VMID-disk1.qcow2, while in Proxmox, they are referred to as sharedsan:VMID/vm-VMID-disk1.qcow2.
[storage:banana-cluster:sharedsan] ; "sharedsan" is available on all nodes
ssh=root@san.banana-cluster.com
path=/pool0/san/images
temp=/pool0/san/private
[storage:banana-cluster:local@node1] ; local disk on node1 only
ssh=root@node1.banana-cluster.com
path=/srv/images
temp=/srv/temp
If you use ZFS storage on the-new-cluster, the storage bits could look like this. Disk volumes exist on the ZFS pool node1-ssd and node2-ssd on the nodes node1 and node2 respectively.
Note that the temp= path is always a regular path.
[storage:the-new-cluster:node1-ssd@node1]
ssh=root@node1.the-new-cluster.com
path=zfs:node1-ssd
temp=/node1-ssd/temp
[storage:the-new-cluster:node2-ssd@node2]
ssh=root@node2.the-new-cluster.com
path=zfs:node2-ssd
temp=/node2-ssd/temp
The config file looks better with indentation. A suggested layout would be this:
[pve:banana-cluster]
...
[storage:banana-cluster:sharedsan]
...
[storage:banana-cluster:local@node1]
...
[pve:the-new-cluster]
...
[storage:the-new-cluster:node1-ssd@node1]
...
License
proxmove is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 3 or any later version.
Changes
v0.0.5 - 2016-08-30
Added support for ZFS to ZFS. Now we support QCOW2->ZFS and ZFS->ZFS.
v0.0.4 - 2016-08-30
Major overhaul of configuration format and other changes.
Project details
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.