rapi: Add generic “force” parameter

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

doc/rapi.rst

@@ -50,6 +50,12 @@ This is useful in trying to determine (without guarantees though, as
 in the meantime the cluster state could have changed) if the operation
 is likely to succeed or at least start executing.
 
+``force``
++++++++++++
+
+Force operation to continue even if it will cause the cluster to become
+inconsistent (e.g. because there are not enough master candidates).
+
 Usage examples
 --------------
 

lib/rapi/baserlib.py

@@ -279,6 +279,12 @@ class R_Generic(object):
     """
     return self._checkIntVariable('bulk')
 
+  def useForce(self):
+    """Check if the request specifies a forced operation.
+
+    """
+    return self._checkIntVariable('force')
+
   def dryRun(self):
     """Check if the request specifies dry-run mode.