[pve-devel] [PATCH v3 qemu-server++ 0/21] remote migration

["Fabian Grünbichler" <f.gruenbichler@proxmox.com>]

this series adds remote migration for VMs.

both live and offline migration including NBD and storage-migrated disks should
work. groundwork for extending to pve-container and pvesr already laid.

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

overview over affected repos and changes, see individual patches for
more details.

proxmox-websocket-tunnel:

new tunnel helper tool for forwarding commands and data over websocket
connections, required by pve-guest-common on source side

pve-guest-common:

new/refactored generic WS/SSH tunnel fork/read/.. helpers
new storage migration over WS tunnel helpers

pve-storage:

refactor storage_migrate to make code-reuse possible

qemu-server:

some refactoring, new mtunnel endpoints, new remote_migration endpoints
TODO: handle pending changes and snapshots
TODO: proper CLI for remote migration
TODO: handle C^c
TODO: strict parser for FW config as well?
potential TODO: precond endpoint?

as usual, some of the patches are best viewed with '-w', especially in
qemu-server..

required dependencies are noted

pve-guest-common:

Fabian Grünbichler (3):
  migrate: handle migration_network with remote migration
  add tunnel helper module
  add storage tunnel module

 src/Makefile               |   2 +
 debian/control             |   1 +
 src/PVE/AbstractMigrate.pm |  37 ++--
 src/PVE/StorageTunnel.pm   | 231 ++++++++++++++++++++++++
 src/PVE/Tunnel.pm          | 356 +++++++++++++++++++++++++++++++++++++
 5 files changed, 611 insertions(+), 16 deletions(-)
 create mode 100644 src/PVE/StorageTunnel.pm
 create mode 100644 src/PVE/Tunnel.pm

proxmox-websocket-tunnel:

Fabian Grünbichler (4):
  initial commit
  add tunnel implementation
  add fingerprint validation
  add packaging

qemu-server:

Fabian Grünbichler (10):
  refactor map_storage to map_id
  schema: use pve-bridge-id
  parse_config: optional strict mode
  update_vm: allow simultaneous setting of boot-order and dev
  nbd alloc helper: allow passing in explicit format
  migrate: move tunnel-helpers to pve-guest-common
  mtunnel: add API endpoints
  migrate: refactor remote VM/tunnel start
  migrate: add remote migration handling
  api: add remote migrate endpoint

 PVE/API2/Qemu.pm                      | 721 ++++++++++++++++++++++++-
 PVE/QemuMigrate.pm                    | 738 ++++++++++++++++----------
 PVE/QemuServer.pm                     | 100 ++--
 debian/control                        |   2 +
 test/MigrationTest/QemuMigrateMock.pm |  28 +-
 5 files changed, 1240 insertions(+), 349 deletions(-)

pve-storage:

Fabian Grünbichler (4):
  volname_for_storage: parse volname before calling
  storage_migrate: pull out snapshot decision
  storage_migrate: pull out import/export_prepare
  add volume_import/export_start helpers

 PVE/Storage.pm | 205 ++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 153 insertions(+), 52 deletions(-)