pve-manager/PVE/API2/Pool.pm
Fabian Grünbichler 4448f8d3fa fix #1148: api: pools: support nested pools
since poolid can now contain `/`, it's not possible to use it (properly) as
path parameter anymore.

accordingly:
- merge `read_pool` (`GET /pools/{poolid}`) into 'index' (`GET
  /pools/?poolid={poolid}`) (requires clients to extract the only member of the returned array if they want to query an individual pool)
- move `update_pool` to `/pools`, deprecating the old variant with path parameter
- move `delete_pool` to `/pools`, deprecating the old variant with path parameter
- deprecate `read_pool` API endpoint

pool creation is blocked for nested pools where the parent does not already
exist. similarly, the checks for deletion are extended to block deletion if
sub-pools still exist.

the old API endpoints continue to work for non-nested pools. `pvesh ls /pools`
is semi-broken for nested pools, listing the entries, but no methods on them,
since they reference the old API. fixing this would require extending the REST
handling to support a new type of child reference.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
2023-11-20 12:26:21 +01:00

503 lines
13 KiB
Perl

package PVE::API2::Pool;
use strict;
use warnings;
use PVE::AccessControl;
use PVE::Cluster qw (cfs_read_file cfs_write_file);
use PVE::Exception qw(raise_param_exc);
use PVE::INotify;
use PVE::Storage;
use PVE::SafeSyslog;
use PVE::API2Tools;
use PVE::RESTHandler;
use base qw(PVE::RESTHandler);
__PACKAGE__->register_method ({
name => 'index',
path => '',
method => 'GET',
description => "List pools or get pool configuration.",
permissions => {
description => "List all pools where you have Pool.Audit permissions on /pool/<pool>, or the pool specific with {poolid}",
user => 'all',
},
parameters => {
additionalProperties => 0,
properties => {
poolid => {
type => 'string',
format => 'pve-poolid',
optional => 1,
},
type => {
type => 'string',
enum => [ 'qemu', 'lxc', 'storage' ],
optional => 1,
requires => 'poolid',
},
},
},
returns => {
type => 'array',
items => {
type => "object",
properties => {
poolid => { type => 'string' },
comment => {
type => 'string',
optional => 1,
},
members => {
type => 'array',
optional => 1,
items => {
type => "object",
additionalProperties => 1,
properties => {
type => {
type => 'string',
enum => [ 'qemu', 'lxc', 'openvz', 'storage' ],
},
id => {
type => 'string',
},
node => {
type => 'string',
},
vmid => {
type => 'integer',
optional => 1,
},
storage => {
type => 'string',
optional => 1,
},
},
},
},
},
},
links => [ { rel => 'child', href => "{poolid}" } ],
},
code => sub {
my ($param) = @_;
my $rpcenv = PVE::RPCEnvironment::get();
my $authuser = $rpcenv->get_user();
my $usercfg = $rpcenv->{user_cfg};
my $res = [];
if (my $poolid = $param->{poolid}) {
$rpcenv->check($authuser, "/pool/$poolid", [ 'Pool.Audit' ], 1);
my $vmlist = PVE::Cluster::get_vmlist() || {};
my $idlist = $vmlist->{ids} || {};
my $rrd = PVE::Cluster::rrd_dump();
my $pool_config = $usercfg->{pools}->{$poolid};
die "pool '$poolid' does not exist\n" if !$pool_config;
my $members = [];
for my $vmid (sort keys %{$pool_config->{vms}}) {
my $vmdata = $idlist->{$vmid};
next if !$vmdata || defined($param->{type}) && $param->{type} ne $vmdata->{type};
my $entry = PVE::API2Tools::extract_vm_stats($vmid, $vmdata, $rrd);
push @$members, $entry;
}
my $nodename = PVE::INotify::nodename();
my $cfg = PVE::Storage::config();
if (!defined($param->{type}) || $param->{type} eq 'storage') {
for my $storeid (sort keys %{$pool_config->{storage}}) {
my $scfg = PVE::Storage::storage_config ($cfg, $storeid, 1);
next if !$scfg;
my $storage_node = $nodename; # prefer local node
if ($scfg->{nodes} && !$scfg->{nodes}->{$storage_node}) {
for my $node (sort keys(%{$scfg->{nodes}})) {
$storage_node = $node;
last;
}
}
my $entry = PVE::API2Tools::extract_storage_stats($storeid, $scfg, $storage_node, $rrd);
push @$members, $entry;
}
}
my $pool_info = {
members => $members,
};
$pool_info->{comment} = $pool_config->{comment} if defined($pool_config->{comment});
$pool_info->{poolid} = $poolid;
push @$res, $pool_info;
} else {
for my $pool (sort keys %{$usercfg->{pools}}) {
next if !$rpcenv->check($authuser, "/pool/$pool", [ 'Pool.Audit' ], 1);
my $entry = { poolid => $pool };
my $pool_config = $usercfg->{pools}->{$pool};
$entry->{comment} = $pool_config->{comment} if defined($pool_config->{comment});
push @$res, $entry;
}
}
return $res;
}});
__PACKAGE__->register_method ({
name => 'create_pool',
protected => 1,
path => '',
method => 'POST',
permissions => {
check => ['perm', '/pool/{poolid}', ['Pool.Allocate']],
},
description => "Create new pool.",
parameters => {
additionalProperties => 0,
properties => {
poolid => {
type => 'string',
format => 'pve-poolid',
},
comment => {
type => 'string',
optional => 1,
},
},
},
returns => { type => 'null' },
code => sub {
my ($param) = @_;
PVE::AccessControl::lock_user_config(sub {
my $usercfg = cfs_read_file("user.cfg");
my $pool = $param->{poolid};
die "pool '$pool' already exists\n" if $usercfg->{pools}->{$pool};
if ($pool =~ m!^(.*)/[^/]+$!) {
my $parent = $1;
die "parent '$parent' of pool '$pool' does not exist\n"
if !defined($usercfg->{pools}->{$parent});
}
$usercfg->{pools}->{$pool} = {
vms => {},
storage => {},
};
$usercfg->{pools}->{$pool}->{comment} = $param->{comment} if $param->{comment};
cfs_write_file("user.cfg", $usercfg);
}, "create pool failed");
return;
}});
__PACKAGE__->register_method ({
name => 'update_pool_deprecated',
protected => 1,
path => '{poolid}',
method => 'PUT',
permissions => {
description => "You also need the right to modify permissions on any object you add/delete.",
check => ['perm', '/pool/{poolid}', ['Pool.Allocate']],
},
description => "Update pool data (deprecated, no support for nested pools - use 'PUT /pools/?poolid={poolid}' instead).",
parameters => {
additionalProperties => 0,
properties => {
poolid => { type => 'string', format => 'pve-poolid' },
comment => { type => 'string', optional => 1 },
vms => {
description => 'List of guest VMIDs to add or remove from this pool.',
type => 'string', format => 'pve-vmid-list',
optional => 1,
},
storage => {
description => 'List of storage IDs to add or remove from this pool.',
type => 'string', format => 'pve-storage-id-list',
optional => 1,
},
'allow-move' => {
description => 'Allow adding a guest even if already in another pool.'
.' The guest will be removed from its current pool and added to this one.',
type => 'boolean',
optional => 1,
default => 0,
},
delete => {
description => 'Remove the passed VMIDs and/or storage IDs instead of adding them.',
type => 'boolean',
optional => 1,
default => 0,
},
},
},
returns => { type => 'null' },
code => sub {
my ($param) = @_;
return __PACKAGE__->update_pool($param);
}});
__PACKAGE__->register_method ({
name => 'update_pool',
protected => 1,
path => '',
method => 'PUT',
permissions => {
description => "You also need the right to modify permissions on any object you add/delete.",
check => ['perm', '/pool/{poolid}', ['Pool.Allocate']],
},
description => "Update pool.",
parameters => {
additionalProperties => 0,
properties => {
poolid => { type => 'string', format => 'pve-poolid' },
comment => { type => 'string', optional => 1 },
vms => {
description => 'List of guest VMIDs to add or remove from this pool.',
type => 'string', format => 'pve-vmid-list',
optional => 1,
},
storage => {
description => 'List of storage IDs to add or remove from this pool.',
type => 'string', format => 'pve-storage-id-list',
optional => 1,
},
'allow-move' => {
description => 'Allow adding a guest even if already in another pool.'
.' The guest will be removed from its current pool and added to this one.',
type => 'boolean',
optional => 1,
default => 0,
},
delete => {
description => 'Remove the passed VMIDs and/or storage IDs instead of adding them.',
type => 'boolean',
optional => 1,
default => 0,
},
},
},
returns => { type => 'null' },
code => sub {
my ($param) = @_;
my $rpcenv = PVE::RPCEnvironment::get();
my $authuser = $rpcenv->get_user();
PVE::AccessControl::lock_user_config(sub {
my $usercfg = cfs_read_file("user.cfg");
my $pool = $param->{poolid};
my $pool_config = $usercfg->{pools}->{$pool};
die "pool '$pool' does not exist\n" if !$pool_config;
$pool_config->{comment} = $param->{comment} if defined($param->{comment});
if (defined($param->{vms})) {
for my $vmid (PVE::Tools::split_list($param->{vms})) {
$rpcenv->check_perm_modify($authuser, "/vms/$vmid");
if ($param->{delete}) {
die "VM $vmid is not a pool member\n" if !$pool_config->{vms}->{$vmid};
delete $pool_config->{vms}->{$vmid};
delete $usercfg->{vms}->{$vmid};
} else {
die "VM $vmid is already a pool member\n" if $pool_config->{vms}->{$vmid};
if (defined(my $existing_pool = $usercfg->{vms}->{$vmid})) {
die "VM $vmid belongs already to pool '$existing_pool' and 'allow-move' is not set\n"
if !$param->{'allow-move'};
$rpcenv->check($authuser, "/pool/$existing_pool", ['Pool.Allocate']);
delete $usercfg->{pools}->{$existing_pool}->{vms}->{$vmid};
}
$pool_config->{vms}->{$vmid} = 1;
$usercfg->{vms}->{$vmid} = $pool;
}
}
}
if (defined($param->{storage})) {
for my $storeid (PVE::Tools::split_list($param->{storage})) {
$rpcenv->check_perm_modify($authuser, "/storage/$storeid");
if ($param->{delete}) {
die "Storage '$storeid' is not a pool member\n"
if !$pool_config->{storage}->{$storeid};
delete $pool_config->{storage}->{$storeid};
} else {
die "Storage '$storeid' is already a pool member\n"
if $pool_config->{storage}->{$storeid};
$pool_config->{storage}->{$storeid} = 1;
}
}
}
cfs_write_file("user.cfg", $usercfg);
}, "update pools failed");
return;
}});
__PACKAGE__->register_method ({
name => 'read_pool',
path => '{poolid}',
method => 'GET',
permissions => {
check => ['perm', '/pool/{poolid}', ['Pool.Audit']],
},
description => "Get pool configuration (deprecated, no support for nested pools, use 'GET /pools/?poolid={poolid}').",
parameters => {
additionalProperties => 0,
properties => {
poolid => {
type => 'string',
format => 'pve-poolid',
},
type => {
type => 'string',
enum => [ 'qemu', 'lxc', 'storage' ],
optional => 1,
},
},
},
returns => {
type => "object",
additionalProperties => 0,
properties => {
comment => {
type => 'string',
optional => 1,
},
members => {
type => 'array',
items => {
type => "object",
additionalProperties => 1,
properties => {
type => {
type => 'string',
enum => [ 'qemu', 'lxc', 'openvz', 'storage' ],
},
id => {
type => 'string',
},
node => {
type => 'string',
},
vmid => {
type => 'integer',
optional => 1,
},
storage => {
type => 'string',
optional => 1,
},
},
},
},
},
},
code => sub {
my ($param) = @_;
my $pool_info = __PACKAGE__->index($param);
return $pool_info->[0];
}});
__PACKAGE__->register_method ({
name => 'delete_pool_deprecated',
protected => 1,
path => '{poolid}',
method => 'DELETE',
permissions => {
description => "You can only delete empty pools (no members).",
check => ['perm', '/pool/{poolid}', ['Pool.Allocate']],
},
description => "Delete pool (deprecated, no support for nested pools, use 'DELETE /pools/?poolid={poolid}').",
parameters => {
additionalProperties => 0,
properties => {
poolid => { type => 'string', format => 'pve-poolid' },
}
},
returns => { type => 'null' },
code => sub {
my ($param) = @_;
return __PACKAGE__->delete_pool($param);
}});
__PACKAGE__->register_method ({
name => 'delete_pool',
protected => 1,
path => '',
method => 'DELETE',
permissions => {
description => "You can only delete empty pools (no members).",
check => ['perm', '/pool/{poolid}', ['Pool.Allocate']],
},
description => "Delete pool.",
parameters => {
additionalProperties => 0,
properties => {
poolid => { type => 'string', format => 'pve-poolid' },
}
},
returns => { type => 'null' },
code => sub {
my ($param) = @_;
my $rpcenv = PVE::RPCEnvironment::get();
my $authuser = $rpcenv->get_user();
PVE::AccessControl::lock_user_config(sub {
my $vmlist = PVE::Cluster::get_vmlist() || {};
my $idlist = $vmlist->{ids} || {};
my $storecfg = PVE::Storage::config();
my $usercfg = cfs_read_file("user.cfg");
my $pool = $param->{poolid};
my $pool_config = $usercfg->{pools}->{$pool};
die "pool '$pool' does not exist\n" if !$pool_config;
for my $subpool (sort keys %{$pool_config->{pools}}) {
die "pool '$pool' is not empty (contains pool '$subpool')\n";
}
for my $vmid (sort keys %{$pool_config->{vms}}) {
next if !$idlist->{$vmid}; # ignore destroyed guests
die "pool '$pool' is not empty (contains VM $vmid)\n";
}
for my $storeid (sort keys %{$pool_config->{storage}}) {
next if !PVE::Storage::storage_config ($storecfg, $storeid, 1);
die "pool '$pool' is not empty (contains storage '$storeid')\n";
}
delete ($usercfg->{pools}->{$pool});
PVE::AccessControl::delete_pool_acl($pool, $usercfg);
cfs_write_file("user.cfg", $usercfg);
}, "delete pool failed");
return;
}});
1;