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/*
Copyright 2013 CoreOS Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package dbus
import (
"github.com/godbus/dbus"
)
// From the systemd docs:
//
// The properties array of StartTransientUnit() may take many of the settings
// that may also be configured in unit files. Not all parameters are currently
// accepted though, but we plan to cover more properties with future release.
// Currently you may set the Description, Slice and all dependency types of
// units, as well as RemainAfterExit, ExecStart for service units,
// TimeoutStopUSec and PIDs for scope units, and CPUAccounting, CPUShares,
// BlockIOAccounting, BlockIOWeight, BlockIOReadBandwidth,
// BlockIOWriteBandwidth, BlockIODeviceWeight, MemoryAccounting, MemoryLimit,
// DevicePolicy, DeviceAllow for services/scopes/slices. These fields map
// directly to their counterparts in unit files and as normal D-Bus object
// properties. The exception here is the PIDs field of scope units which is
// used for construction of the scope only and specifies the initial PIDs to
// add to the scope object.
type Property struct {
Name string
Value dbus.Variant
}
type PropertyCollection struct {
Name string
Properties []Property
}
type execStart struct {
Path string // the binary path to execute
Args []string // an array with all arguments to pass to the executed command, starting with argument 0
UncleanIsFailure bool // a boolean whether it should be considered a failure if the process exits uncleanly
}
// PropExecStart sets the ExecStart service property. The first argument is a
// slice with the binary path to execute followed by the arguments to pass to
// the executed command. See
// http://www.freedesktop.org/software/systemd/man/systemd.service.html#ExecStart=
func PropExecStart(command []string, uncleanIsFailure bool) Property {
execStarts := []execStart{
execStart{
Path: command[0],
Args: command,
UncleanIsFailure: uncleanIsFailure,
},
}
return Property{
Name: "ExecStart",
Value: dbus.MakeVariant(execStarts),
}
}
// PropRemainAfterExit sets the RemainAfterExit service property. See
// http://www.freedesktop.org/software/systemd/man/systemd.service.html#RemainAfterExit=
func PropRemainAfterExit(b bool) Property {
return Property{
Name: "RemainAfterExit",
Value: dbus.MakeVariant(b),
}
}
// PropDescription sets the Description unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit#Description=
func PropDescription(desc string) Property {
return Property{
Name: "Description",
Value: dbus.MakeVariant(desc),
}
}
func propDependency(name string, units []string) Property {
return Property{
Name: name,
Value: dbus.MakeVariant(units),
}
}
// PropRequires sets the Requires unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Requires=
func PropRequires(units ...string) Property {
return propDependency("Requires", units)
}
// PropRequiresOverridable sets the RequiresOverridable unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#RequiresOverridable=
func PropRequiresOverridable(units ...string) Property {
return propDependency("RequiresOverridable", units)
}
// PropRequisite sets the Requisite unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Requisite=
func PropRequisite(units ...string) Property {
return propDependency("Requisite", units)
}
// PropRequisiteOverridable sets the RequisiteOverridable unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#RequisiteOverridable=
func PropRequisiteOverridable(units ...string) Property {
return propDependency("RequisiteOverridable", units)
}
// PropWants sets the Wants unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Wants=
func PropWants(units ...string) Property {
return propDependency("Wants", units)
}
// PropBindsTo sets the BindsTo unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#BindsTo=
func PropBindsTo(units ...string) Property {
return propDependency("BindsTo", units)
}
// PropRequiredBy sets the RequiredBy unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#RequiredBy=
func PropRequiredBy(units ...string) Property {
return propDependency("RequiredBy", units)
}
// PropRequiredByOverridable sets the RequiredByOverridable unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#RequiredByOverridable=
func PropRequiredByOverridable(units ...string) Property {
return propDependency("RequiredByOverridable", units)
}
// PropWantedBy sets the WantedBy unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#WantedBy=
func PropWantedBy(units ...string) Property {
return propDependency("WantedBy", units)
}
// PropBoundBy sets the BoundBy unit property. See
// http://www.freedesktop.org/software/systemd/main/systemd.unit.html#BoundBy=
func PropBoundBy(units ...string) Property {
return propDependency("BoundBy", units)
}
// PropConflicts sets the Conflicts unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Conflicts=
func PropConflicts(units ...string) Property {
return propDependency("Conflicts", units)
}
// PropConflictedBy sets the ConflictedBy unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#ConflictedBy=
func PropConflictedBy(units ...string) Property {
return propDependency("ConflictedBy", units)
}
// PropBefore sets the Before unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Before=
func PropBefore(units ...string) Property {
return propDependency("Before", units)
}
// PropAfter sets the After unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#After=
func PropAfter(units ...string) Property {
return propDependency("After", units)
}
// PropOnFailure sets the OnFailure unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#OnFailure=
func PropOnFailure(units ...string) Property {
return propDependency("OnFailure", units)
}
// PropTriggers sets the Triggers unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Triggers=
func PropTriggers(units ...string) Property {
return propDependency("Triggers", units)
}
// PropTriggeredBy sets the TriggeredBy unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#TriggeredBy=
func PropTriggeredBy(units ...string) Property {
return propDependency("TriggeredBy", units)
}
// PropPropagatesReloadTo sets the PropagatesReloadTo unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#PropagatesReloadTo=
func PropPropagatesReloadTo(units ...string) Property {
return propDependency("PropagatesReloadTo", units)
}
// PropRequiresMountsFor sets the RequiresMountsFor unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.unit.html#RequiresMountsFor=
func PropRequiresMountsFor(units ...string) Property {
return propDependency("RequiresMountsFor", units)
}
// PropSlice sets the Slice unit property. See
// http://www.freedesktop.org/software/systemd/man/systemd.resource-control.html#Slice=
func PropSlice(slice string) Property {
return Property{
Name: "Slice",
Value: dbus.MakeVariant(slice),
}
}
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