chiark / gitweb /
cgls: by default start with group of PID 1
[elogind.git] / man / systemd.unit.xml
index 968ee58be3550d76712893126dc502b5363967f7..54903fb52fca93eb43e4ac0cb75e0c3df99c1284 100644 (file)
                                 <term><varname>ConditionPathExists=</varname></term>
                                 <term><varname>ConditionDirectoryNotEmpty=</varname></term>
                                 <term><varname>ConditionKernelCommandLine=</varname></term>
+                                <term><varname>ConditionVirtualization=</varname></term>
                                 <term><varname>ConditionNull=</varname></term>
 
                                 <listitem><para>Before starting a unit
                                 exist. <varname>ConditionDirectoryNotEmpty=</varname>
                                 is similar to
                                 <varname>ConditionPathExists=</varname>
-                                but verifies whether a cetrain path is
+                                but verifies whether a certain path is
                                 exists and is a non-empty
                                 directory. Similarly
                                 <varname>ConditionKernelCommandLine=</varname>
                                 set (or if prefixed with the
                                 exclamation mark unset). The argument
                                 must either be a single word, or an
-                                assignment (i.e. two words, seperated
+                                assignment (i.e. two words, separated
                                 by the equality sign). In the former
                                 case the kernel command line is
                                 searched for the word appearing as is,
                                 assignment. In the latter case the
                                 exact assignment is looked for with
                                 right and left hand side
-                                matching. Finally,
+                                matching. <varname>ConditionVirtualization=</varname>
+                                may be used to check whether the
+                                system is executed in a virtualized
+                                environment and optionally test
+                                whether it is a specific
+                                implementation. Takes either boolean
+                                value to check if being executed in
+                                any virtual environment or one of the
+                                <varname>qemu</varname>,
+                                <varname>kvm</varname>,
+                                <varname>vmware</varname>,
+                                <varname>microsoft</varname>,
+                                <varname>oracle</varname>,
+                                <varname>xen</varname>,
+                                <varname>openvz</varname> to test
+                                against a specific implementation. The
+                                test may be negated by prepending an
+                                exclamation mark. Finally,
                                 <varname>ConditionNull=</varname> may
                                 be used to add a constant condition
                                 check value to the unit. It takes a
                                 <varname>false</varname> the condition
                                 will always fail, otherwise
                                 succeed. If multiple conditions are
-                                specified the unit will be executed
-                                iff at least one of them applies
-                                (i.e. a logical OR is
-                                applied).</para></listitem>
+                                specified the unit will be executed if
+                                all of them apply (i.e. a logical AND
+                                is applied). Condition checks can be
+                                prefixed with a pipe symbol (|) in
+                                which case a condition becomes a
+                                triggering condition. If at least one
+                                triggering condition is defined for a
+                                unit then the unit will be executed if
+                                at least one of the triggering
+                                conditions apply and all of the
+                                non-triggering conditions. If you
+                                prefix an argument with the pipe
+                                symbol and an exclamation mark the
+                                pipe symbol must be passed first, the
+                                exclamation second.</para></listitem>
                         </varlistentry>
                 </variablelist>