Adds the delete-with-chain-repair semantics agreed in the RFC review:
scripts/vm/hypervisor/kvm/nasbackup.sh
- New '-o rebase' operation: rebases an existing on-NAS qcow2 onto
a new backing parent. Uses a SAFE rebase (no -u) so the target
absorbs blocks of the about-to-be-deleted parent before the
backing pointer is moved up to the grandparent. Writes the new
backing reference relative to the target's directory so it
survives mount-point changes.
- New CLI flags --rebase-target, --rebase-new-backing (both passed
mount-relative).
RebaseBackupCommand + LibvirtRebaseBackupCommandWrapper
- New agent command that wraps the script's rebase operation. The
provider sends one of these per child that needs re-pointing.
NASBackupProvider.deleteBackup
- Now plans the chain repair before touching files via
computeChainRepair():
* No chain metadata -> single-file delete (legacy behaviour)
* Tail incremental -> single delete, no rebase
* Middle incremental -> rebase immediate child onto our
parent, then delete; shift
chain_position of all later
descendants by -1
* Full with descendants -> refuse unless forced=true; with
forced=true delete full + every
descendant newest-first
- Updates parent_backup_id, chain_position metadata in
backup_details after each rebase so the model in the DB matches
the on-disk chain.
This implements the cascade-delete behaviour requested in @abh1sar's
review point #7.
Refs: apache/cloudstack#12899
Two changes that together let an incremental NAS backup be restored
without manual chain assembly:
scripts/vm/hypervisor/kvm/nasbackup.sh
- qemu-img rebase now writes a backing-file path that is RELATIVE to
the new qcow2's directory (e.g. ../<parent-ts>/root.<uuid>.qcow2)
rather than the absolute path on the current mount point. NAS mount
points are ephemeral (mktemp -d), so an absolute reference would
not resolve when the backup is re-mounted at restore time. Relative
references are resolved by qemu-img against the file's own
directory, so the chain stays valid no matter where the NAS is
mounted next.
- Verifies the parent file exists on the NAS before rebasing.
LibvirtRestoreBackupCommandWrapper
- For file-based primary storage (local, NFS-file), the existing
code rsync'd the source qcow2 to the volume. That copies only the
differential blocks of an incremental, leaving a volume whose
backing-file reference points at a path the primary storage host
doesn't have. Now: detect a backing-chain via qemu-img info JSON
and flatten via 'qemu-img convert -O qcow2', which follows the
chain and produces a self-contained qcow2. Full backups continue
to use rsync (faster, no chain to flatten).
- The block-storage path (RBD/Linstor) already used qemu-img convert
via the QemuImg helper, which auto-flattens chains, so that path
needed no change.
Refs: apache/cloudstack#12899
CloudStack rebuilds the libvirt domain XML on every VM start, which means
persistent QEMU dirty bitmaps don't survive a stop/start cycle. Rather
than hooking into the VM start lifecycle (intrusive across the
orchestration layer), this commit handles the missing bitmap *lazily* at
the next backup attempt:
nasbackup.sh
- When -M incremental is requested, the script first checks
`virsh checkpoint-list` for the parent bitmap. If absent, it
recreates the checkpoint on the running domain so libvirt accepts
the <incremental> reference. The next incremental will be larger
than usual (it captures all writes since recreate, not since the
previous incremental) but is correct; subsequent ones return to
normal size.
- On recreation, emits BITMAP_RECREATED=<name> on stdout for the
orchestrator to record.
BackupAnswer
+ bitmapRecreated field surfaced from the agent.
LibvirtTakeBackupCommandWrapper
- Strips BITMAP_RECREATED= line from stdout before size parsing.
- Sets answer.setBitmapRecreated(...).
NASBackupChainKeys
+ BITMAP_RECREATED key for backup_details.
NASBackupProvider
- When the agent reports a recreated bitmap, persists it under
backup_details and logs an info-level message so operators can
correlate larger-than-usual incrementals with VM restarts.
This satisfies the bitmap-loss-on-VM-restart concern from the RFC review
without touching VirtualMachineManager / StartCommand / agent lifecycle.
Refs: apache/cloudstack#12899
Adds the Java side of the incremental NAS backup feature:
TakeBackupCommand
+ mode, bitmapNew, bitmapParent, parentPath fields (null for legacy
callers — script preserves its existing behaviour when these are
omitted).
BackupAnswer
+ bitmapCreated (echoed by the agent on success)
+ incrementalFallback (true when an incremental was requested but the
agent had to fall back to full because the VM was stopped).
LibvirtTakeBackupCommandWrapper
- Forwards the new fields to nasbackup.sh.
- Strips the new BITMAP_CREATED= / INCREMENTAL_FALLBACK= marker lines
out of stdout before the existing numeric-suffix size parser runs,
so the script can keep the same "size as last line(s)" contract.
- Surfaces both markers on the BackupAnswer.
NASBackupProvider
- decideChain(vm) walks backup_details (chain_id, chain_position,
bitmap_name) for the latest BackedUp backup of the VM and decides:
* Stopped VM -> full (libvirt backup-begin needs running QEMU)
* No prior chain -> full (chain_position=0)
* chain_position+1 >= nas.backup.full.every -> new full
* otherwise -> incremental, parent=last bitmap
- Generates timestamp-based bitmap names ("backup-<epoch>") matching
what the script then registers as the libvirt checkpoint name.
- persistChainMetadata() writes parent_backup_id, bitmap_name,
chain_id, chain_position, type into the existing backup_details
key/value table (per the RFC review — no new columns on backups).
- Honours the agent's INCREMENTAL_FALLBACK= signal: re-records the
backup as a full and starts a fresh chain.
- createBackupObject() now takes a type argument so the BackupVO
reflects the actual decision instead of always being "FULL".
Refs: apache/cloudstack#12899
* Move logs for values of the migration settings out of the loop
* Apply suggestions from code review
Co-authored-by: Suresh Kumar Anaparti <sureshkumar.anaparti@gmail.com>
---------
Co-authored-by: Suresh Kumar Anaparti <sureshkumar.anaparti@gmail.com>
* kvm: fix wrong CheckVirtualMachineAnswer when vm does not exist
* kvm: add LibvirtCheckVirtualMachineCommandWrapperTest
Co-authored-by: dahn <daan.hoogland@gmail.com>
* Fix domain parsing for GPU
* Add Display controller to GPU class check
this adds support for the amd instinct mi2xx accelorator crards in the discovery script.
Co-authored-by: Piet Braat <piet@phiea.nl>
* PowerFlex/ScaleIO client initialization, authentication and command execution improvements
* Migrate VM with volume not supported yet for PowerFlex/ScaleIO
* review changes
* 4.22:
Fix issue when restoring backup after migration of volume (#12549)
Usage: Heartbeat should not schedule usage job when a job is already running (#12616)
Allow limit queries without random ordering (#12598)
engine/schema: fix cluster/zone settings with encrypted values (#12626)
Fix injection of preset variables into the JS interpreter (#12515)
Fix issue with multiple KVM Host entries in host table (#12589)
Add a Prometheus metric to track host certificate expiry (#12613)
ssvm: delete temp directory while deleting entity download url (#12562)
* extension/proxmox: improve host vm power reporting
Add `statuses` action in extensions to report VM power states
This PR introduces support for retrieving the power state of all VMs on a host directly from an extension using the new `statuses` action.
When available, this provides a single aggregated response, reducing the need for multiple calls.
If the extension does not implement `statuses`, the server will gracefully fall back to querying individual VMs using the existing `status` action.
This helps with updating the host in CloudStack after out-of-band migrations for the VM.
Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
* address review
Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
---------
Signed-off-by: Abhishek Kumar <abhishek.mrt22@gmail.com>
James Peru
Suresh Kumar Anaparti
dahn
Nicolas Vazquez
Wei Zhou
Harikrishna
Daan Hoogland
Abhisar Sinha
João Jandre
Abhisar Sinha
Vishesh
prashanthr2
John Bampton
Henrique Sato
Daniel Augusto Veronezi Salvador
Klaus de Freitas Dornsbach
Pearl Dsilva
Erik Böck
Abhishek Kumar