objects: Add custom de-/serializing code for query responses
[ganeti-local] / lib / opcodes.py
index 9a8b2f6..6bf14d5 100644 (file)
@@ -1,7 +1,7 @@
 #
 #
 
-# Copyright (C) 2006, 2007 Google Inc.
+# Copyright (C) 2006, 2007, 2008, 2009, 2010 Google Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -115,12 +115,16 @@ class OpCode(BaseOpCode):
 
   @cvar OP_ID: The ID of this opcode. This should be unique amongst all
                children of this class.
+  @cvar OP_DSC_FIELD: The name of a field whose value will be included in the
+                      string returned by Summary(); see the docstring of that
+                      method for details).
   @ivar dry_run: Whether the LU should be run in dry-run mode, i.e. just
                  the check steps
+  @ivar priority: Opcode priority for queue
 
   """
   OP_ID = "OP_ABSTRACT"
-  __slots__ = ["dry_run", "debug_level"]
+  __slots__ = ["dry_run", "debug_level", "priority"]
 
   def __getstate__(self):
     """Specialized getstate for opcodes.
@@ -169,12 +173,19 @@ class OpCode(BaseOpCode):
   def Summary(self):
     """Generates a summary description of this opcode.
 
+    The summary is the value of the OP_ID attribute (without the "OP_" prefix),
+    plus the value of the OP_DSC_FIELD attribute, if one was defined; this field
+    should allow to easily identify the operation (for an instance creation job,
+    e.g., it would be the instance name).
+
     """
     # all OP_ID start with OP_, we remove that
     txt = self.OP_ID[3:]
     field_name = getattr(self, "OP_DSC_FIELD", None)
     if field_name:
       field_value = getattr(self, field_name, None)
+      if isinstance(field_value, (list, tuple)):
+        field_value = ",".join(str(i) for i in field_value)
       txt = "%s(%s)" % (txt, field_value)
     return txt
 
@@ -299,13 +310,25 @@ class OpSetClusterParams(OpCode):
   OP_ID = "OP_CLUSTER_SET_PARAMS"
   __slots__ = [
     "vg_name",
+    "drbd_helper",
     "enabled_hypervisors",
     "hvparams",
     "os_hvp",
     "beparams",
+    "osparams",
     "nicparams",
+    "ndparams",
     "candidate_pool_size",
     "maintain_node_health",
+    "uid_pool",
+    "add_uids",
+    "remove_uids",
+    "default_iallocator",
+    "reserved_lvs",
+    "hidden_os",
+    "blacklisted_os",
+    "prealloc_wipe_disks",
+    "master_netdev",
     ]
 
 
@@ -316,6 +339,47 @@ class OpRedistributeConfig(OpCode):
   OP_ID = "OP_CLUSTER_REDIST_CONF"
   __slots__ = []
 
+
+class OpQuery(OpCode):
+  """Query for resources/items.
+
+  @ivar what: Resources to query for, must be one of L{constants.QR_OP_QUERY}
+  @ivar fields: List of fields to retrieve
+  @ivar filter: Query filter
+
+  """
+  OP_ID = "OP_QUERY"
+  __slots__ = [
+    "what",
+    "fields",
+    "filter",
+    ]
+
+
+class OpQueryFields(OpCode):
+  """Query for available resource/item fields.
+
+  @ivar what: Resources to query for, must be one of L{constants.QR_OP_QUERY}
+  @ivar fields: List of fields to retrieve
+
+  """
+  OP_ID = "OP_QUERY_FIELDS"
+  __slots__ = [
+    "what",
+    "fields",
+    ]
+
+
+class OpOutOfBand(OpCode):
+  """Interact with OOB."""
+  OP_ID = "OP_OUT_OF_BAND"
+  __slots__ = [
+    "node_name",
+    "command",
+    "timeout",
+    ]
+
+
 # node opcodes
 
 class OpRemoveNode(OpCode):
@@ -351,11 +415,18 @@ class OpAddNode(OpCode):
                name is already in the cluster; use this parameter to 'repair'
                a node that had its configuration broken, or was reinstalled
                without removal from the cluster.
+  @type group: C{str}
+  @ivar group: The node group to which this node will belong.
+  @type vm_capable: C{bool}
+  @ivar vm_capable: The vm_capable node attribute
+  @type master_capable: C{bool}
+  @ivar master_capable: The master_capable node attribute
 
   """
   OP_ID = "OP_NODE_ADD"
   OP_DSC_FIELD = "node_name"
-  __slots__ = ["node_name", "primary_ip", "secondary_ip", "readd"]
+  __slots__ = ["node_name", "primary_ip", "secondary_ip", "readd", "group",
+               "vm_capable", "master_capable", "ndparams"]
 
 
 class OpQueryNodes(OpCode):
@@ -415,6 +486,10 @@ class OpSetNodeParams(OpCode):
     "offline",
     "drained",
     "auto_promote",
+    "master_capable",
+    "vm_capable",
+    "secondary_ip",
+    "ndparams",
     ]
 
 
@@ -428,21 +503,13 @@ class OpPowercycleNode(OpCode):
     ]
 
 
-class OpEvacuateNode(OpCode):
-  """Relocate secondary instances from a node."""
-  OP_ID = "OP_NODE_EVACUATE"
-  OP_DSC_FIELD = "node_name"
-  __slots__ = [
-    "node_name", "remote_node", "iallocator", "early_release",
-    ]
-
-
 class OpMigrateNode(OpCode):
   """Migrate all instances from a node."""
   OP_ID = "OP_NODE_MIGRATE"
   OP_DSC_FIELD = "node_name"
   __slots__ = [
     "node_name",
+    "mode",
     "live",
     ]
 
@@ -457,7 +524,17 @@ class OpNodeEvacuationStrategy(OpCode):
 # instance opcodes
 
 class OpCreateInstance(OpCode):
-  """Create an instance."""
+  """Create an instance.
+
+  @ivar instance_name: Instance name
+  @ivar mode: Instance creation mode (one of L{constants.INSTANCE_CREATE_MODES})
+  @ivar source_handshake: Signed handshake from source (remote import only)
+  @ivar source_x509_ca: Source X509 CA in PEM format (remote import only)
+  @ivar source_instance_name: Previous name of instance (remote import only)
+  @ivar source_shutdown_timeout: Shutdown timeout used for source instance
+    (remote import only)
+
+  """
   OP_ID = "OP_INSTANCE_CREATE"
   OP_DSC_FIELD = "instance_name"
   __slots__ = [
@@ -465,12 +542,15 @@ class OpCreateInstance(OpCode):
     "os_type", "force_variant", "no_install",
     "pnode", "disk_template", "snode", "mode",
     "disks", "nics",
-    "src_node", "src_path", "start",
+    "src_node", "src_path", "start", "identify_defaults",
     "wait_for_sync", "ip_check", "name_check",
     "file_storage_dir", "file_driver",
     "iallocator",
-    "hypervisor", "hvparams", "beparams",
-    "dry_run",
+    "hypervisor", "hvparams", "beparams", "osparams",
+    "source_handshake",
+    "source_x509_ca",
+    "source_instance_name",
+    "source_shutdown_timeout",
     ]
 
 
@@ -478,7 +558,7 @@ class OpReinstallInstance(OpCode):
   """Reinstall an instance's OS."""
   OP_ID = "OP_INSTANCE_REINSTALL"
   OP_DSC_FIELD = "instance_name"
-  __slots__ = ["instance_name", "os_type", "force_variant"]
+  __slots__ = ["instance_name", "os_type", "force_variant", "osparams"]
 
 
 class OpRemoveInstance(OpCode):
@@ -496,7 +576,7 @@ class OpRenameInstance(OpCode):
   """Rename an instance."""
   OP_ID = "OP_INSTANCE_RENAME"
   __slots__ = [
-    "instance_name", "ignore_ip", "new_name",
+    "instance_name", "ip_check", "new_name", "name_check",
     ]
 
 
@@ -505,7 +585,7 @@ class OpStartupInstance(OpCode):
   OP_ID = "OP_INSTANCE_STARTUP"
   OP_DSC_FIELD = "instance_name"
   __slots__ = [
-    "instance_name", "force", "hvparams", "beparams",
+    "instance_name", "force", "hvparams", "beparams", "ignore_offline_nodes",
     ]
 
 
@@ -513,7 +593,9 @@ class OpShutdownInstance(OpCode):
   """Shutdown an instance."""
   OP_ID = "OP_INSTANCE_SHUTDOWN"
   OP_DSC_FIELD = "instance_name"
-  __slots__ = ["instance_name", "timeout"]
+  __slots__ = [
+    "instance_name", "timeout", "ignore_offline_nodes",
+    ]
 
 
 class OpRebootInstance(OpCode):
@@ -551,11 +633,12 @@ class OpMigrateInstance(OpCode):
   node.
 
   @ivar instance_name: the name of the instance
+  @ivar mode: the migration mode (live, non-live or None for auto)
 
   """
   OP_ID = "OP_INSTANCE_MIGRATE"
   OP_DSC_FIELD = "instance_name"
-  __slots__ = ["instance_name", "live", "cleanup"]
+  __slots__ = ["instance_name", "mode", "cleanup", "live"]
 
 
 class OpMoveInstance(OpCode):
@@ -621,7 +704,7 @@ class OpSetInstanceParams(OpCode):
   OP_DSC_FIELD = "instance_name"
   __slots__ = [
     "instance_name",
-    "hvparams", "beparams", "force",
+    "hvparams", "beparams", "osparams", "force",
     "nics", "disks", "disk_template",
     "remote_node", "os_name", "force_variant",
     ]
@@ -636,6 +719,35 @@ class OpGrowDisk(OpCode):
     ]
 
 
+# Node group opcodes
+
+class OpAddGroup(OpCode):
+  """Add a node group to the cluster."""
+  OP_ID = "OP_GROUP_ADD"
+  OP_DSC_FIELD = "group_name"
+  __slots__ = ["group_name"]
+
+
+class OpQueryGroups(OpCode):
+  """Compute the list of node groups."""
+  OP_ID = "OP_GROUP_QUERY"
+  __slots__ = ["output_fields", "names"]
+
+
+class OpRemoveGroup(OpCode):
+  """Remove a node group from the cluster."""
+  OP_ID = "OP_GROUP_REMOVE"
+  OP_DSC_FIELD = "group_name"
+  __slots__ = ["group_name"]
+
+
+class OpRenameGroup(OpCode):
+  """Rename a node group in the cluster."""
+  OP_ID = "OP_GROUP_RENAME"
+  OP_DSC_FIELD = "old_name"
+  __slots__ = ["old_name", "new_name"]
+
+
 # OS opcodes
 class OpDiagnoseOS(OpCode):
   """Compute the list of guest operating systems."""
@@ -650,12 +762,47 @@ class OpQueryExports(OpCode):
   __slots__ = ["nodes", "use_locking"]
 
 
+class OpPrepareExport(OpCode):
+  """Prepares an instance export.
+
+  @ivar instance_name: Instance name
+  @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
+
+  """
+  OP_ID = "OP_BACKUP_PREPARE"
+  OP_DSC_FIELD = "instance_name"
+  __slots__ = [
+    "instance_name", "mode",
+    ]
+
+
 class OpExportInstance(OpCode):
-  """Export an instance."""
+  """Export an instance.
+
+  For local exports, the export destination is the node name. For remote
+  exports, the export destination is a list of tuples, each consisting of
+  hostname/IP address, port, HMAC and HMAC salt. The HMAC is calculated using
+  the cluster domain secret over the value "${index}:${hostname}:${port}". The
+  destination X509 CA must be a signed certificate.
+
+  @ivar mode: Export mode (one of L{constants.EXPORT_MODES})
+  @ivar target_node: Export destination
+  @ivar x509_key_name: X509 key to use (remote export only)
+  @ivar destination_x509_ca: Destination X509 CA in PEM format (remote export
+                             only)
+
+  """
   OP_ID = "OP_BACKUP_EXPORT"
   OP_DSC_FIELD = "instance_name"
   __slots__ = [
+    # TODO: Rename target_node as it changes meaning for different export modes
+    # (e.g. "destination")
     "instance_name", "target_node", "shutdown", "shutdown_timeout",
+    "remove_instance",
+    "ignore_remove_failures",
+    "mode",
+    "x509_key_name",
+    "destination_x509_ca",
     ]
 
 
@@ -717,7 +864,7 @@ class OpTestDelay(OpCode):
   """
   OP_ID = "OP_TEST_DELAY"
   OP_DSC_FIELD = "duration"
-  __slots__ = ["duration", "on_master", "on_nodes"]
+  __slots__ = ["duration", "on_master", "on_nodes", "repeat"]
 
 
 class OpTestAllocator(OpCode):
@@ -741,6 +888,31 @@ class OpTestAllocator(OpCode):
     ]
 
 
+class OpTestJobqueue(OpCode):
+  """Utility opcode to test some aspects of the job queue.
+
+  """
+  OP_ID = "OP_TEST_JQUEUE"
+  __slots__ = [
+    "notify_waitlock",
+    "notify_exec",
+    "log_messages",
+    "fail",
+    ]
+
+
+class OpTestDummy(OpCode):
+  """Utility opcode used by unittests.
+
+  """
+  OP_ID = "OP_TEST_DUMMY"
+  __slots__ = [
+    "result",
+    "messages",
+    "fail",
+    ]
+
+
 OP_MAPPING = dict([(v.OP_ID, v) for v in globals().values()
                    if (isinstance(v, type) and issubclass(v, OpCode) and
                        hasattr(v, "OP_ID"))])