[pve-devel] [PATCH-series container/qemu-server v7 0/10] remote migration

[Fabian Grünbichler]

this series adds remote migration for VMs and CTs.

both live and offline migration of VMs including NBD and
storage-migrated disks should work, containers don't have any live
migration so both offline and restart mode work identical except for the
restart part.

groundwork for extending to pvesr already laid.

uncovered (but still not fixed)
https://bugzilla.proxmox.com/show_bug.cgi?id=3873
(migration btrfs -> btrfs with snapshots)

follow-ups/todos:
- implement disk export/import for shared storages like rbd
- implement disk export/import raw+size for ZFS zvols
- extend ZFS replication via websocket tunnel to remote cluster
- extend replication to support RBD snapshot-based replication
- extend RBD replication via websocket tunnel to remote cluster
- switch regular migration SSH mtunnel to version 2 with json support
  (related -> s.hanreichs pre-/post-migrate-hook series)

new in v6:
- --with-local-disks always set and not a parameter
- `pct remote-migrate`
- new Sys.Incoming privilege + checks
- storage export taintedness bug fix
- properly take over pve-targetstorage option (qemu-server ->
  pve-common)
- review feedback addressed

new in v5: lots of edge cases fixed, PoC for pve-container, some more
helper moving for re-use in pve-container without duplication

new in v4: lots of small fixes, improved bwlimit handling, `qm` command
(thanks Fabian Ebner and Dominik Csapak for the feedback on v3!)

new in v3: lots of refactoring and edge-case handling

new in v2: dropped parts already applied, incorporated Fabian's and
Dominik's feedback (thanks!)

new in v1: explicit remote endpoint specified as part of API call
instead of remote.cfg

pve-container:

Fabian Grünbichler (3):
  migration: add remote migration
  pct: add 'remote-migrate' command
  migrate: print mapped volume in error

 debian/control         |   3 +-
 src/PVE/API2/LXC.pm    | 635 +++++++++++++++++++++++++++++++++++++++++
 src/PVE/CLI/pct.pm     | 124 ++++++++
 src/PVE/LXC/Migrate.pm | 248 +++++++++++++---
 4 files changed, 967 insertions(+), 43 deletions(-)

qemu-server:

Fabian Grünbichler (7):
  pending changes: allow skipping cloud-init
  pending: fix typo in variable name
  mtunnel: add API endpoints
  migrate: refactor remote VM/tunnel start
  migrate: add remote migration handling
  api: add remote migrate endpoint
  qm: add remote-migrate command

 PVE/API2/Qemu.pm   | 717 ++++++++++++++++++++++++++++++++++++++++++++-
 PVE/CLI/qm.pm      | 113 +++++++
 PVE/QemuMigrate.pm | 590 ++++++++++++++++++++++++++++---------
 PVE/QemuServer.pm  |  49 ++--
 debian/control     |   7 +-
 5 files changed, 1311 insertions(+), 165 deletions(-)

-- 
2.30.2