Bump in case this has been missed. :) The patches should still apply fine. (just tested)
On 12/15/20 1:48 PM, Aaron Lauterer wrote:
This series implements a new feature which allows users to easily reassign disks between VMs. Currently this is only possible with one of the following manual steps: * rename the disk image/file and do a `qm rescan` * configure the disk manually and use the old image name, having an image for VM A assigned to VM B The latter can cause unexpected behavior because PVE expects that the VMID in a disk name always corresponds to the VM it is assigned to. Thus when a disk, original from VM A was manually configured as disk for VM B it happens that, when deleting VM A, the disk in question will be deleted as well because it still had the VMID of VM A in it's name. To issue a reassign from the CLI run: qm reassign_disk <source VMID> <target VMID> <drive name> where <drive name> is the config key of the disk, e.g. ide0, scsi1 and so on. The following storage types are implemented at the moment: * dir based ones * directory * NFS * CIFS * gluster * ZFS * (thin) LVM * Ceph RBD v4 -> v5: * rebase on current master * reorder patches * rename `drive_key` to `drive_name` thanks @Dominic for pointing out that there already are a lot of different names in use for this [0] and not to invent another one ;) * implemented suggested changes from Fabian [1][2]. More directly in the patches themselves v3 -> v4: * revert intermediate storage plugin for directory based plugins * add a `die "not supported"` method in Plugin.pm * dir based plugins now call the file_reassign_volume method in Plugin.pm as the generic file/directory based method * restored old `volume_has_feature` method in Plugin.pm and override it in directory based plugins to check against the new `reassign` feature (not too happy about the repetition for each plugin) * task description mapping has been moved from widget-toolkit to pve-manager/utils v2 -> v3: * change locking approach * add more checks * add intermedia storage plugin for directory based plugins * use feature flags * split up the reassign method to have a dedicated method for the renaming itself * handle linked clones * clean up if disk used to be replicated I hope I didn't forget anything major. v1 -> v2: print info about the new disk volid and key at the end of the job so it shows up in the CLI output and task log Changes from RFC -> V1: * support to reassign unused disks * digest for target vm config * reorder the checks a bit * adding another one to check if the given key for the disk even exists in the config. [0] https://lists.proxmox.com/pipermail/pve-devel/2020-November/045986.html [1] https://lists.proxmox.com/pipermail/pve-devel/2020-November/046031.html [2] https://lists.proxmox.com/pipermail/pve-devel/2020-November/046030.html storage: Aaron Lauterer (1): add disk reassign feature PVE/Storage.pm | 15 ++++++++-- PVE/Storage/CIFSPlugin.pm | 19 +++++++++++++ PVE/Storage/DirPlugin.pm | 19 +++++++++++++ PVE/Storage/GlusterfsPlugin.pm | 19 +++++++++++++ PVE/Storage/LVMPlugin.pm | 24 ++++++++++++++++ PVE/Storage/LvmThinPlugin.pm | 1 + PVE/Storage/NFSPlugin.pm | 19 +++++++++++++ PVE/Storage/Plugin.pm | 51 ++++++++++++++++++++++++++++++++++ PVE/Storage/RBDPlugin.pm | 31 +++++++++++++++++++++ PVE/Storage/ZFSPoolPlugin.pm | 28 +++++++++++++++++++ 10 files changed, 224 insertions(+), 2 deletions(-) qemu-server: Aaron Lauterer (2): disk reassign: add API endpoint cli: disk reassign: add reassign_disk to qm command PVE/API2/Qemu.pm | 151 ++++++++++++++++++++++++++++++++++++++++ PVE/CLI/qm.pm | 2 + PVE/QemuServer/Drive.pm | 4 ++ 3 files changed, 157 insertions(+) guest-common: Aaron Lauterer (1): Replication: mention disk reassign in comment of possible reasons PVE/Replication.pm | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) manager: Aaron Lauterer (1): ui: tasks: add qmreassign task description www/manager6/Utils.js | 1 + 1 file changed, 1 insertion(+)
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