[pve-devel] [PATCH-series qemu-server++ 0/22] remote migration

Fabian Ebner f.ebner at proxmox.com
Wed Nov 10 13:42:26 CET 2021


Mostly just nits and suggestions from my side, but there are a handful 
of (easily-fixed) issues too.

For the patches for access-control, common, http-server (although I 
don't feel qualified there) and patches for qemu-server where I didn't 
reply:

Reviewed-by: Fabian Ebner <f.ebner at proxmox.com>

Am 05.11.21 um 14:03 schrieb Fabian Grünbichler:
> this series adds remote migration for VMs. there's still some of
> TODOs/FIXMEs/stuff that requires discussion left, but this should
> hopefully be possible to apply with minor modifications and lots of
> future extensions.
> 
> both live and offline migration including NBD and storage-migrated disks
> should work.
> 
> besides lots of rebases, implemented todos and fixed issues the main
> difference to the previous RFC is that we no longer define remote
> entries in a config file, but just expect the caller/client to give us
> all the required information to connect to the remote cluster.
> 
> overview over affected repos and changes, see individual patches for
> more details.
> 
> proxmox:
> 
> some compatible changes to make websocket code usable for client-side
> connections, required by proxmox-websocket-tunnel
> 
> proxmox-websocket-tunnel:
> 
> new tunnel helper tool for forwarding commands and data over websocket
> connections, required by qemu-server on source side
> 
> pve-access-control:
> 
> new ticket type, required by qemu-server on target side
> 
> pve-common:
> 
> bridgepair format akin to storage pair, pve-bridge-id option, required
> by qemu-server
> remote format for specifying a remote endpoint (including API token,
> fingerprint, ..)
> 
> pve-guest-common:
> 
> handle remote migration (no SSH) in AbstractMigrate,
> required by qemu-server
> 
> pve-storage:
> 
> extend 'pvesm import' to allow import from UNIX socket, required on
> target node by qemu-server
> 
> qemu-server:
> 
> some refactoring, new mtunnel endpoints, new remote_migration endpoints
> TODO: handle pending changes and snapshots
> TODO: proper CLI for remote migration
> potential TODO: precond endpoint?
> 
> pve-http-server:
> 
> fix for handling unflushed proxy streams
> 
> as usual, some of the patches are best viewed with '-w', especially in
> qemu-server..
> 
> required dependencies are noted, qemu-server also requires a build-dep
> on patched pve-common since the required options/formats would be
> missing otherwise..
> 
> 
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