[pve-devel] [PATCH v2 access-control 1/1] pools: define resource limits

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

and handle them when parsing/writing user.cfg

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---

Notes:
    - make limit schema public for pve-guest-common usage

 src/PVE/AccessControl.pm  | 42 +++++++++++++++++++++++++++++++++++++--
 src/test/parser_writer.pl | 14 ++++++-------
 2 files changed, 47 insertions(+), 9 deletions(-)

diff --git a/src/PVE/AccessControl.pm b/src/PVE/AccessControl.pm
index 21f93ff..f1863c8 100644
--- a/src/PVE/AccessControl.pm
+++ b/src/PVE/AccessControl.pm
@@ -72,6 +72,36 @@ sub pve_verify_realm {
     PVE::Auth::Plugin::pve_verify_realm(@_);
 }
 
+our $pool_limits_desc = {
+    "mem-config" => {
+	type => 'integer',
+	description => "Sum of memory (in MB) guests in this pools can be configured with.",
+	optional => 1,
+    },
+    "mem-run" => {
+	type => 'integer',
+	description => "Sum of memory (in MB) guests in this pools can be started with.",
+	optional => 1,
+    },
+    "cpu-config" => {
+	type => 'integer',
+	description => "Sum of (virtual) cores guests in this pools can be configured with.",
+	optional => 1,
+    },
+    "cpu-run" => {
+	type => 'integer',
+	description => "Sum of (virtual) cores guests in this pools can be started with.",
+	optional => 1,
+    },
+};
+
+PVE::JSONSchema::register_format('pve-pool-limits', $pool_limits_desc);
+PVE::JSONSchema::register_standard_option('pve-pool-limits', {
+    type => 'string',
+    format => $pool_limits_desc,
+    optional => 1,
+});
+
 # Locking both config files together is only ever allowed in one order:
 #  1) tfa config
 #  2) user config
@@ -1524,7 +1554,7 @@ sub parse_user_config {
 		warn "user config - ignore invalid path in acl '$pathtxt'\n";
 	    }
 	} elsif ($et eq 'pool') {
-	    my ($pool, $comment, $vmlist, $storelist) = @data;
+	    my ($pool, $comment, $vmlist, $storelist, $limits) = @data;
 
 	    if (!verify_poolname($pool, 1)) {
 		warn "user config - ignore pool '$pool' - invalid characters in pool name\n";
@@ -1575,6 +1605,13 @@ sub parse_user_config {
 		}
 		$cfg->{pools}->{$pool}->{storage}->{$storeid} = 1;
 	    }
+
+	    if ($limits) {
+		my $parsed_limits = eval { PVE::JSONSchema::parse_property_string($pool_limits_desc, $limits) };
+		warn "Failed to parse pool limits for '$pool' - $@\n" if $@;
+
+		$cfg->{pools}->{$pool}->{limits} = $parsed_limits;
+	    }
 	} elsif ($et eq 'token') {
 	    my ($tokenid, $expire, $privsep, $comment) = @data;
 
@@ -1656,7 +1693,8 @@ sub write_user_config {
 	my $vmlist = join (',', sort keys %{$d->{vms}});
 	my $storelist = join (',', sort keys %{$d->{storage}});
 	my $comment = $d->{comment} ? PVE::Tools::encode_text($d->{comment}) : '';
-	$data .= "pool:$pool:$comment:$vmlist:$storelist:\n";
+	my $limits = $d->{limits} ? PVE::JSONSchema::print_property_string($d->{limits}, $pool_limits_desc) : '';
+	$data .= "pool:$pool:$comment:$vmlist:$storelist:$limits:\n";
     }
 
     $data .= "\n";
diff --git a/src/test/parser_writer.pl b/src/test/parser_writer.pl
index 80c346b..2e6eb61 100755
--- a/src/test/parser_writer.pl
+++ b/src/test/parser_writer.pl
@@ -431,12 +431,12 @@ my $default_raw = {
 	'test_role_privs_invalid' => 'role:testrole:VM.Invalid,Datastore.Audit,VM.Allocate:',
     },
     pools => {
-	'test_pool_empty' => 'pool:testpool::::',
-	'test_pool_invalid' => 'pool:testpool::non-numeric:inval!d:',
-	'test_pool_members' => 'pool:testpool::123,1234:local,local-zfs:',
-	'test_pool_duplicate_vms' => 'pool:test_duplicate_vms::123,1234::',
-	'test_pool_duplicate_vms_expected' => 'pool:test_duplicate_vms::::',
-	'test_pool_duplicate_storages' => 'pool:test_duplicate_storages:::local,local-zfs:',
+	'test_pool_empty' => 'pool:testpool:::::',
+	'test_pool_invalid' => 'pool:testpool::non-numeric:inval!d::',
+	'test_pool_members' => 'pool:testpool::123,1234:local,local-zfs::',
+	'test_pool_duplicate_vms' => 'pool:test_duplicate_vms::123,1234:::',
+	'test_pool_duplicate_vms_expected' => 'pool:test_duplicate_vms:::::',
+	'test_pool_duplicate_storages' => 'pool:test_duplicate_storages:::local,local-zfs::',
     },
     acl => {
 	'acl_simple_user' => 'acl:1:/:test@pam:PVEVMAdmin:',
@@ -1018,7 +1018,7 @@ my $tests = [
 	       'user:test@pam:0:0::::::'."\n".
 	       'token:test@pam!test:0:0::'."\n\n".
 	       'group:testgroup:::'."\n\n".
-	       'pool:testpool::::'."\n\n".
+	       'pool:testpool:::::'."\n\n".
 	       'role:testrole::'."\n\n",
     },
 ];
-- 
2.39.2