OP_REMOVE_NODE
++++++++++++++
-Removes a node from the cluster. On the removed node the hooks are called
-during the execution of the operation and not after its completion.
+Removes a node from the cluster. On the removed node the hooks are
+called during the execution of the operation and not after its
+completion.
:directory: node-remove
:env. vars: NODE_NAME
:pre-execution: master node, target node
:post-execution: master node, target node
+OP_NODE_MIGRATE
+++++++++++++++++
+
+Relocate secondary instances from a node.
+
+:directory: node-migrate
+:env. vars: NODE_NAME
+:pre-execution: master node
+:post-execution: master node
+
+
+Node group operations
+~~~~~~~~~~~~~~~~~~~~~
+
+OP_ADD_GROUP
+++++++++++++
+
+Adds a node group to the cluster.
+
+:directory: group-add
+:env. vars: GROUP_NAME
+:pre-execution: master node
+:post-execution: master node
+
+OP_GROUP_SET_PARAMS
++++++++++++++++++++
+
+Changes a node group's parameters.
+
+:directory: group-modify
+:env. vars: GROUP_NAME, NEW_ALLOC_POLICY
+:pre-execution: master node
+:post-execution: master node
+
+OP_REMOVE_GROUP
++++++++++++++++
+
+Removes a node group from the cluster. Since the node group must be
+empty for removal to succeed, the concept of "nodes in the group" does
+not exist, and the hook is only executed in the master node.
+
+:directory: group-remove
+:env. vars: GROUP_NAME
+:pre-execution: master node
+:post-execution: master node
+
+OP_RENAME_GROUP
++++++++++++++++
+
+Renames a node group.
+
+:directory: group-rename
+:env. vars: OLD_NAME, NEW_NAME
+:pre-execution: master node and all nodes in the group
+:post-execution: master node and all nodes in the group
+
Instance operations
~~~~~~~~~~~~~~~~~~~
Exports the instance.
-
:directory: instance-export
:env. vars: EXPORT_NODE, EXPORT_DO_SHUTDOWN
:pre-execution: master node, primary and secondary nodes
Starts an instance.
:directory: instance-start
-:env. vars: INSTANCE_NAME, INSTANCE_PRIMARY, INSTANCE_SECONDARIES, FORCE
+:env. vars: FORCE
:pre-execution: master node, primary and secondary nodes
:post-execution: master node, primary and secondary nodes
Stops an instance.
-:directory: instance-shutdown
-:env. vars: INSTANCE_NAME, INSTANCE_PRIMARY, INSTANCE_SECONDARIES
+:directory: instance-stop
+:env. vars: only the standard instance vars
:pre-execution: master node, primary and secondary nodes
:post-execution: master node, primary and secondary nodes
Modifies the instance parameters.
:directory: instance-modify
-:env. vars: INSTANCE_NAME, MEM_SIZE, VCPUS, INSTANCE_IP
+:env. vars: only the standard instance vars
:pre-execution: master node, primary and secondary nodes
:post-execution: master node, primary and secondary nodes
OP_INSTANCE_FAILOVER
++++++++++++++++++++
-Failovers an instance.
+Failovers an instance. In the post phase INSTANCE_PRIMARY and
+INSTANCE_SECONDARIES refer to the nodes that were repectively primary
+and secondary before failover.
:directory: instance-failover
-:env. vars: IGNORE_CONSISTENCY
+:env. vars: IGNORE_CONSISTENCY, OLD_SECONDARY, OLD_PRIMARY, NEW_SECONDARY, NEW_PRIMARY
:pre-execution: master node, secondary node
-:post-execution: master node, secondary node
+:post-execution: master node, primary and secondary nodes
OP_INSTANCE_MIGRATE
++++++++++++++++++++
-Migrates an instance.
+Migrates an instance. In the post phase INSTANCE_PRIMARY and
+INSTANCE_SECONDARIES refer to the nodes that were repectively primary
+and secondary before migration.
-:directory: instance-failover
-:env. vars: INSTANCE_MIGRATE_LIVE, INSTANCE_MIGRATE_CLEANUP
+:directory: instance-migrate
+:env. vars: MIGRATE_LIVE, MIGRATE_CLEANUP, OLD_SECONDARY, OLD_PRIMARY, NEW_SECONDARY, NEW_PRIMARY
:pre-execution: master node, secondary node
-:post-execution: master node, secondary node
+:post-execution: master node, primary and secondary nodes
OP_INSTANCE_REMOVE
Remove an instance.
:directory: instance-remove
-:env. vars: INSTANCE_NAME, INSTANCE_PRIMARY, INSTANCE_SECONDARIES
+:env. vars: only the standard instance vars
:pre-execution: master node
-:post-execution: master node
+:post-execution: master node, primary and secondary nodes
OP_INSTANCE_REPLACE_DISKS
+++++++++++++++++++++++++
:directory: disk-grow
:env. vars: DISK, AMOUNT
-:pre-execution: master node, primary node
-:post-execution: master node, primary node
+:pre-execution: master node, primary and secondary nodes
+:post-execution: master node, primary and secondary nodes
OP_INSTANCE_RENAME
++++++++++++++++++
:pre-execution: master node, primary and secondary nodes
:post-execution: master node, primary and secondary nodes
+OP_INSTANCE_MOVE
+++++++++++++++++
+
+Move an instance by data-copying.
+
+:directory: instance-move
+:env. vars: TARGET_NODE
+:pre-execution: master node, primary and target nodes
+:post-execution: master node, primary and target nodes
+
+OP_INSTANCE_RECREATE_DISKS
+++++++++++++++++++++++++++
+
+Recreate an instance's missing disks.
+
+:directory: instance-recreate-disks
+:env. vars: only the standard instance vars
+:pre-execution: master node, primary and secondary nodes
+:post-execution: master node, primary and secondary nodes
+
+OP_INSTANCE_REPLACE_DISKS
++++++++++++++++++++++++++
+
+Replace the disks of an instance.
+
+:directory: mirrors-replace
+:env. vars: MODE, NEW_SECONDARY, OLD_SECONDARY
+:pre-execution: master node, primary and new secondary nodes
+:post-execution: master node, primary and new secondary nodes
+
+
Cluster operations
~~~~~~~~~~~~~~~~~~
OP_POST_INIT_CLUSTER
++++++++++++++++++++
-This hook is called via a special "empty" LU right after cluster initialization.
+This hook is called via a special "empty" LU right after cluster
+initialization.
:directory: cluster-init
:env. vars: none
:pre-execution: none
:post-execution: master node
+OP_DESTROY_CLUSTER
+++++++++++++++++++
+
+The post phase of this hook is called during the execution of destroy
+operation and not after its completion.
+
+:directory: cluster-destroy
+:env. vars: none
+:pre-execution: none
+:post-execution: master node
+
OP_CLUSTER_VERIFY
+++++++++++++++++
The name of the instance OS.
INSTANCE_PRIMARY
- The name of the node which is the primary for the instance.
+ The name of the node which is the primary for the instance. Note that
+ for migrations/failovers, you shouldn't rely on this variable since
+ the nodes change during the exectution, but on the
+ OLD_PRIMARY/NEW_PRIMARY values.
INSTANCE_SECONDARIES
- Space-separated list of secondary nodes for the instance.
+ Space-separated list of secondary nodes for the instance. Note that
+ for migrations/failovers, you shouldn't rely on this variable since
+ the nodes change during the exectution, but on the
+ OLD_SECONDARY/NEW_SECONDARY values.
INSTANCE_MEMORY
The memory size (in MiBs) of the instance.
NEW_SECONDARY
The name of the node on which the new mirror component is being
- added. This can be the name of the current secondary, if the new
- mirror is on the same secondary.
+ added (for replace disk). This can be the name of the current
+ secondary, if the new mirror is on the same secondary. For
+ migrations/failovers, this is the old primary node.
OLD_SECONDARY
- The name of the old secondary in the replace-disks command Note that
+ The name of the old secondary in the replace-disks command. Note that
this can be equal to the new secondary if the secondary node hasn't
- actually changed.
+ actually changed. For migrations/failovers, this is the new primary
+ node.
+
+OLD_PRIMARY, NEW_PRIMARY
+ For migrations/failovers, the old and respectively new primary
+ nodes. These two mirror the NEW_SECONDARY/OLD_SECONDARY variables
EXPORT_NODE
The node on which the exported image of the instance was done.
GANETI_OBJECT_TYPE=INSTANCE
GANETI_OP_CODE=OP_INSTANCE_STARTUP
GANETI_OP_TARGET=instance2.example.com
+
+.. vim: set textwidth=72 :
+.. Local Variables:
+.. mode: rst
+.. fill-column: 72
+.. End:
projects / ganeti-local / blobdiff