[pve-devel] [PATCH storage 5/6] api: disks: delete: add flag for wiping disks
Fabian Ebner
f.ebner at proxmox.com
Mon Oct 25 15:47:48 CEST 2021
For ZFS and directory storages, clean up the whole disk when the
layout is as usual to avoid left-overs.
Signed-off-by: Fabian Ebner <f.ebner at proxmox.com>
---
PVE/API2/Disks/Directory.pm | 26 +++++++++++++++++++++++
PVE/API2/Disks/LVM.pm | 23 +++++++++++++++++++++
PVE/API2/Disks/LVMThin.pm | 25 ++++++++++++++++++++++
PVE/API2/Disks/ZFS.pm | 41 +++++++++++++++++++++++++++++++++++++
4 files changed, 115 insertions(+)
diff --git a/PVE/API2/Disks/Directory.pm b/PVE/API2/Disks/Directory.pm
index e9b05be..c9dcb52 100644
--- a/PVE/API2/Disks/Directory.pm
+++ b/PVE/API2/Disks/Directory.pm
@@ -314,6 +314,12 @@ __PACKAGE__->register_method ({
properties => {
node => get_standard_option('pve-node'),
name => get_standard_option('pve-storage-id'),
+ 'cleanup-disks' => {
+ description => "Also wipe disk so it can be repurposed afterwards.",
+ type => 'boolean',
+ optional => 1,
+ default => 0,
+ },
},
},
returns => { type => 'string' },
@@ -331,10 +337,30 @@ __PACKAGE__->register_method ({
my $mountunitpath = "/etc/systemd/system/$mountunitname";
PVE::Diskmanage::locked_disk_action(sub {
+ my $to_wipe;
+ if ($param->{'cleanup-disks'}) {
+ my $unit = $read_ini->($mountunitpath);
+
+ my $dev = PVE::Diskmanage::verify_blockdev_path($unit->{'Mount'}->{'What'});
+ $to_wipe = $dev;
+
+ # clean up whole device if this is the only partition
+ $dev =~ s|^/dev/||;
+ my $info = PVE::Diskmanage::get_disks($dev, 1, 1);
+ die "unable to obtain information for disk '$dev'\n" if !$info->{$dev};
+ $to_wipe = $info->{$dev}->{parent}
+ if $info->{$dev}->{parent} && scalar(keys $info->%*) == 2;
+ }
+
run_command(['systemctl', 'stop', $mountunitname]);
run_command(['systemctl', 'disable', $mountunitname]);
unlink $mountunitpath or $! == ENOENT or die "cannot remove $mountunitpath - $!\n";
+
+ if ($to_wipe) {
+ PVE::Diskmanage::wipe_blockdev($to_wipe);
+ PVE::Diskmanage::udevadm_trigger($to_wipe);
+ }
});
};
diff --git a/PVE/API2/Disks/LVM.pm b/PVE/API2/Disks/LVM.pm
index 1b88af2..1af3d43 100644
--- a/PVE/API2/Disks/LVM.pm
+++ b/PVE/API2/Disks/LVM.pm
@@ -198,6 +198,12 @@ __PACKAGE__->register_method ({
properties => {
node => get_standard_option('pve-node'),
name => get_standard_option('pve-storage-id'),
+ 'cleanup-disks' => {
+ description => "Also wipe disks so they can be repurposed afterwards.",
+ type => 'boolean',
+ optional => 1,
+ default => 0,
+ },
},
},
returns => { type => 'string' },
@@ -211,7 +217,24 @@ __PACKAGE__->register_method ({
my $worker = sub {
PVE::Diskmanage::locked_disk_action(sub {
+ my $vgs = PVE::Storage::LVMPlugin::lvm_vgs(1);
+ die "no such volume group '$name'\n" if !$vgs->{$name};
+
PVE::Storage::LVMPlugin::lvm_destroy_volume_group($name);
+
+ if ($param->{'cleanup-disks'}) {
+ my $wiped = [];
+ eval {
+ for my $pv ($vgs->{$name}->{pvs}->@*) {
+ my $dev = PVE::Diskmanage::verify_blockdev_path($pv->{name});
+ PVE::Diskmanage::wipe_blockdev($dev);
+ push $wiped->@*, $dev;
+ }
+ };
+ my $err = $@;
+ PVE::Diskmanage::udevadm_trigger($wiped->@*);
+ die "cleanup failed - $err" if $err;
+ }
});
};
diff --git a/PVE/API2/Disks/LVMThin.pm b/PVE/API2/Disks/LVMThin.pm
index 23f262a..ea36ce2 100644
--- a/PVE/API2/Disks/LVMThin.pm
+++ b/PVE/API2/Disks/LVMThin.pm
@@ -177,6 +177,12 @@ __PACKAGE__->register_method ({
node => get_standard_option('pve-node'),
name => get_standard_option('pve-storage-id'),
'volume-group' => get_standard_option('pve-storage-id'),
+ 'cleanup-disks' => {
+ description => "Also wipe disks so they can be repurposed afterwards.",
+ type => 'boolean',
+ optional => 1,
+ default => 0,
+ },
},
},
returns => { type => 'string' },
@@ -197,6 +203,25 @@ __PACKAGE__->register_method ({
if !grep { $_->{lv} eq $lv && $_->{vg} eq $vg } $thinpools->@*;
run_command(['lvremove', '-y', "${vg}/${lv}"]);
+
+ if ($param->{'cleanup-disks'}) {
+ my $vgs = PVE::Storage::LVMPlugin::lvm_vgs(1);
+
+ die "no such volume group '$vg'\n" if !$vgs->{$vg};
+ die "volume group '$vg' still in use\n" if $vgs->{$vg}->{lvcount} > 0;
+
+ my $wiped = [];
+ eval {
+ for my $pv ($vgs->{$vg}->{pvs}->@*) {
+ my $dev = PVE::Diskmanage::verify_blockdev_path($pv->{name});
+ PVE::Diskmanage::wipe_blockdev($dev);
+ push $wiped->@*, $dev;
+ }
+ };
+ my $err = $@;
+ PVE::Diskmanage::udevadm_trigger($wiped->@*);
+ die "cleanup failed - $err" if $err;
+ }
});
};
diff --git a/PVE/API2/Disks/ZFS.pm b/PVE/API2/Disks/ZFS.pm
index e892712..10b73a5 100644
--- a/PVE/API2/Disks/ZFS.pm
+++ b/PVE/API2/Disks/ZFS.pm
@@ -460,6 +460,12 @@ __PACKAGE__->register_method ({
properties => {
node => get_standard_option('pve-node'),
name => get_standard_option('pve-storage-id'),
+ 'cleanup-disks' => {
+ description => "Also wipe disks so they can be repurposed afterwards.",
+ type => 'boolean',
+ optional => 1,
+ default => 0,
+ },
},
},
returns => { type => 'string' },
@@ -473,12 +479,47 @@ __PACKAGE__->register_method ({
my $worker = sub {
PVE::Diskmanage::locked_disk_action(sub {
+ my $to_wipe = [];
+ if ($param->{'cleanup-disks'}) {
+ # Using -o name does not only output the name in combination with -v.
+ run_command(['zpool', 'list', '-vHPL', $name], outfunc => sub {
+ my ($line) = @_;
+
+ my ($name) = PVE::Tools::split_list($line);
+ return if $name !~ m|^/dev/.+|;
+
+ my $dev = PVE::Diskmanage::verify_blockdev_path($name);
+ my $wipe = $dev;
+
+ $dev =~ s|^/dev/||;
+ my $info = PVE::Diskmanage::get_disks($dev, 1, 1);
+ die "unable to obtain information for disk '$dev'\n" if !$info->{$dev};
+
+ # Wipe whole disk if usual ZFS layout with partition 9 as ZFS reserved.
+ my $parent = $info->{$dev}->{parent};
+ if ($parent && scalar(keys $info->%*) == 3) {
+ $parent =~ s|^/dev/||;
+ my $info9 = $info->{"${parent}9"};
+
+ $wipe = $info->{$dev}->{parent} # need leading /dev/
+ if $info9 && $info9->{used} && $info9->{used} =~ m/^ZFS reserved/;
+ }
+
+ push $to_wipe->@*, $wipe;
+ });
+ }
+
if (-e '/lib/systemd/system/zfs-import at .service') {
my $importunit = 'zfs-import@' . PVE::Systemd::escape_unit($name) . '.service';
run_command(['systemctl', 'disable', $importunit]);
}
run_command(['zpool', 'destroy', $name]);
+
+ eval { PVE::Diskmanage::wipe_blockdev($_) for $to_wipe->@*; };
+ my $err = $@;
+ PVE::Diskmanage::udevadm_trigger($to_wipe->@*);
+ die "cleanup failed - $err" if $err;
});
};
--
2.30.2
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