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From: =?UTF-8?q?Fabian=20Gr=C3=BCnbichler?= <f.gruenbichler@proxmox.com>
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Date: Wed, 10 Apr 2024 15:13:07 +0200
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Subject: [pve-devel] [PATCH manager 1/4] api: pools: add limits management
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allow to set/update limits, and return them when querying individual pools.

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

Notes:
    requires bumped pve-access-control

 PVE/API2/Pool.pm | 36 ++++++++++++++++++++++++++++++++----
 1 file changed, 32 insertions(+), 4 deletions(-)

diff --git a/PVE/API2/Pool.pm b/PVE/API2/Pool.pm
index 54e744558..26ff7742e 100644
--- a/PVE/API2/Pool.pm
+++ b/PVE/API2/Pool.pm
@@ -7,6 +7,7 @@ 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::JSONSchema qw(get_standard_option parse_property_string print_property_string);
 use PVE::Storage;
 
 use PVE::SafeSyslog;
@@ -47,10 +48,7 @@ __PACKAGE__->register_method ({
 	    type => "object",
 	    properties => {
 		poolid => { type => 'string' },
-		comment => {
-		    type => 'string',
-		    optional => 1,
-		},
+		comment => { type => 'string', optional => 1 },
 		members => {
 		    type => 'array',
 		    optional => 1,
@@ -79,6 +77,7 @@ __PACKAGE__->register_method ({
 			},
 		    },
 		},
+		limits => { type => 'string', optional => 1 },
 	    },
 	},
 	links => [ { rel => 'child', href => "{poolid}" } ],
@@ -136,6 +135,8 @@ __PACKAGE__->register_method ({
 		members => $members,
 	    };
 	    $pool_info->{comment} = $pool_config->{comment} if defined($pool_config->{comment});
+	    $pool_info->{limits} = print_property_string($pool_config->{limits}, 'pve-pool-limits')
+		if defined($pool_config->{limits});
 	    $pool_info->{poolid} = $poolid;
 
 	    push @$res, $pool_info;
@@ -173,6 +174,7 @@ __PACKAGE__->register_method ({
 		type => 'string',
 		optional => 1,
 	    },
+	    limits => get_standard_option('pve-pool-limits'),
 	},
     },
     returns => { type => 'null' },
@@ -196,6 +198,13 @@ __PACKAGE__->register_method ({
 	    };
 
 	    $usercfg->{pools}->{$pool}->{comment} = $param->{comment} if $param->{comment};
+	    if (my $limits = parse_property_string('pve-pool-limits', $param->{limits} // '')) {
+		for my $kind (qw(mem cpu disk)) {
+		    raise_param_exc({ "$kind-run" => "'$kind-run' limit must be below '$kind-config' limit if both are defined!" })
+		      if defined($limits->{"$kind-run"}) && defined($limits->{"$kind-config"}) && $limits->{"$kind-config"} < $limits->{"$kind-run"};
+		}
+		$usercfg->{pools}->{$pool}->{limits} = $limits;
+	    }
 
 	    cfs_write_file("user.cfg", $usercfg);
 	}, "create pool failed");
@@ -288,6 +297,9 @@ __PACKAGE__->register_method ({
 		optional => 1,
 		default => 0,
 	    },
+	    limits => get_standard_option("pve-pool-limits", {
+		description => "Update pool limits. Passing '0' for a specific limit will remove any currently configured value.",
+	    }),
 	},
     },
     returns => { type => 'null' },
@@ -346,6 +358,21 @@ __PACKAGE__->register_method ({
 		}
 	    }
 
+	    if (my $update = parse_property_string('pve-pool-limits', $param->{limits} // '')) {
+		my $limits = $pool_config->{limits};
+		for my $kind (sort keys $update->%*) {
+		    if ($update->{$kind} == 0) {
+			delete $limits->{$kind};
+		    } else {
+			$limits->{$kind} = $update->{$kind};
+		    }
+		}
+		for my $kind (qw(mem cpu disk)) {
+		    raise_param_exc( { "$kind-run" => "'$kind-run' limit must be below '$kind-config' limit if both are defined!" })
+		      if defined($limits->{"$kind-run"}) && defined($limits->{"$kind-config"}) && $limits->{"$kind-config"} < $limits->{"$kind-run"};
+		}
+	    }
+
 	    cfs_write_file("user.cfg", $usercfg);
 	}, "update pools failed");
 
@@ -409,6 +436,7 @@ __PACKAGE__->register_method ({
 		    },
 		},
 	    },
+	    limits => get_standard_option("pve-pool-limits"),
 	},
     },
     code => sub {
-- 
2.39.2