ganeti.client.gnt

module documentation

Node related commands

Class	`ReplyStatus`	Class holding a reply status for synchronous confd clients.
Function	`AddNode`	Add a node to the cluster.
Function	`ConvertStorageType`	Converts a user storage type to its internal name.
Function	`EvacuateNode`	Relocate all secondary instance from a node.
Function	`FailoverNode`	Failover all primary instance on a node.
Function	`Health`	Show health of a node using OOB.
Function	`ListDrbd`	Modifies a node.
Function	`ListNodeFields`	List node fields.
Function	`ListNodes`	List nodes and their properties.
Function	`ListStorage`	List physical volumes on node(s).
Function	`ListVolumes`	List logical volumes on node(s).
Function	`Main`	Undocumented
Function	`MigrateNode`	Migrate all primary instance on a node.
Function	`ModifyStorage`	Modify storage volume on a node.
Function	`PowercycleNode`	Remove a node from the cluster.
Function	`PowerNode`	Change/ask power state of a node.
Function	`RemoveNode`	Remove a node from the cluster.
Function	`RepairStorage`	Repairs a storage volume on a node.
Function	`RestrictedCommand`	Runs a remote command on node(s).
Function	`SetNodeParams`	Modifies a node.
Function	`ShowNodeConfig`	Show node information.
Constant	`IGNORE_STATUS_OPT`	Undocumented
Constant	`NONODE_SETUP_OPT`	Undocumented
Variable	`aliases`	Undocumented
Variable	`commands`	Undocumented
Function	`_FormatNodeInfo`	Format node information for `cli.PrintGenericInfo()`.
Function	`_ReadSshKeys`	Reads the DSA SSH keys according to `keyfiles`.
Function	`_SetupSSH`	Configures a destination node's SSH daemon.
Function	`_TryReadFile`	Tries to read a file.
Constant	`_ENV_OVERRIDE`	Undocumented
Constant	`_LIST_DEF_FIELDS`	Undocumented
Constant	`_LIST_POWER_COMMANDS`	Undocumented
Constant	`_LIST_STOR_DEF_FIELDS`	Undocumented
Constant	`_LIST_STOR_HEADERS`	Undocumented
Constant	`_LIST_VOL_DEF_FIELDS`	Undocumented
Constant	`_MODIFIABLE_STORAGE_TYPES`	Undocumented
Constant	`_OOB_COMMAND_ASK`	Undocumented
Constant	`_REPAIRABLE_STORAGE_TYPES`	Undocumented
Constant	`_STORAGE_TYPE_OPT`	Undocumented
Constant	`_USER_STORAGE_TYPE`	Undocumented

@RunWithRPC
def AddNode(opts, args): ¶

Add a node to the cluster.

Parameters
opts	the command line options selected by the user
args:list	should contain only one element, the new node name
Returns
int	the desired exit code

def ConvertStorageType(user_storage_type): ¶

Converts a user storage type to its internal name.

def EvacuateNode(opts, args): ¶

Relocate all secondary instance from a node.

Parameters
opts	the command line options selected by the user
args:list	should be an empty list
Returns
int	the desired exit code

def FailoverNode(opts, args): ¶

Failover all primary instance on a node.

Parameters
opts	the command line options selected by the user
args:list	should be an empty list
Returns
int	the desired exit code

def Health(opts, args): ¶

Show health of a node using OOB.

Parameters
opts	the command line options selected by the user
args:list	should contain only one element, the name of the node to be removed
Returns
int	the desired exit code

def ListDrbd(opts, args): ¶

Modifies a node.

Parameters
opts	the command line options selected by the user
args:list	should contain only one element, the node name
Returns
int	the desired exit code

def ListNodeFields(opts, args): ¶

List node fields.

Parameters
opts	the command line options selected by the user
args:list	fields to list, or empty for all
Returns
int	the desired exit code

def ListNodes(opts, args): ¶

List nodes and their properties.

Parameters
opts	the command line options selected by the user
args:list	nodes to list, or empty for all
Returns
int	the desired exit code

def ListStorage(opts, args): ¶

List physical volumes on node(s).

Parameters
opts	the command line options selected by the user
args:list	should either be an empty list, in which case we list data for all nodes, or contain a list of nodes to display data only for those
Returns
int	the desired exit code

def ListVolumes(opts, args): ¶

List logical volumes on node(s).

Parameters
opts	the command line options selected by the user
args:list	should either be an empty list, in which case we list data for all nodes, or contain a list of nodes to display data only for those
Returns
int	the desired exit code

def Main(): ¶

Undocumented

def MigrateNode(opts, args): ¶

Migrate all primary instance on a node.

def ModifyStorage(opts, args): ¶

Modify storage volume on a node.

Parameters
opts	the command line options selected by the user
args:list	should contain 3 items: node name, storage type and volume name
Returns
int	the desired exit code

def PowercycleNode(opts, args): ¶

Remove a node from the cluster.

Parameters
opts	the command line options selected by the user
args:list	should contain only one element, the name of the node to be removed
Returns
int	the desired exit code

def PowerNode(opts, args): ¶

Change/ask power state of a node.

Parameters
opts	the command line options selected by the user
args:list	should contain only one element, the name of the node to be removed
Returns
int	the desired exit code

def RemoveNode(opts, args): ¶

Remove a node from the cluster.

Parameters
opts	the command line options selected by the user
args:list	should contain only one element, the name of the node to be removed
Returns
int	the desired exit code

def RepairStorage(opts, args): ¶

Repairs a storage volume on a node.

Parameters
opts	the command line options selected by the user
args:list	should contain 3 items: node name, storage type and volume name
Returns
int	the desired exit code

def RestrictedCommand(opts, args): ¶

Runs a remote command on node(s).

Parameters
opts	Command line options selected by user
args:list	Command line arguments
Returns
int	Exit code

def SetNodeParams(opts, args): ¶

Modifies a node.

Parameters
opts	the command line options selected by the user
args:list	should contain only one element, the node name
Returns
int	the desired exit code

def ShowNodeConfig(opts, args): ¶

Show node information.

Parameters
opts	the command line options selected by the user
args:list	should either be an empty list, in which case we show information about all nodes, or should contain a list of nodes to be queried for information
Returns
int	the desired exit code

IGNORE_STATUS_OPT = ¶

Undocumented

Value

cli_option('--ignore-status',
           default=False,
           action='store_true',
           dest='ignore_status',
           help='Ignore the Node(s) offline status (potentially DANGEROUS)')

NONODE_SETUP_OPT = ¶

Undocumented

Value

cli_option('--no-node-setup',
           default=True,
           action='store_false',
           dest='node_setup',
           help='Do not make initial SSH setup on remote node (needs to be done ↵
manually)')

aliases: dict[str, str] = ¶

Undocumented

commands = ¶

Undocumented

def _FormatNodeInfo(node_info): ¶

Format node information for cli.PrintGenericInfo().

def _ReadSshKeys(keyfiles, _tostderr_fn=ToStderr): ¶

Reads the DSA SSH keys according to keyfiles.

Parameters
keyfiles:dict	Dictionary with keys of `constants.SSHK_ALL` and two-values tuples (private and public key file)
_tostderr_fn	Undocumented
Returns
list	List of three-values tuples (`constants.SSHK_ALL`, private and public key as strings)

def _SetupSSH(options, cluster_name, node, ssh_port, cl): ¶

Configures a destination node's SSH daemon.

Parameters
options	Command line options @type cluster_name
cluster_name	Cluster name
node:string	Destination node name
ssh_port:int	Destination node ssh port
cl	luxi client

def _TryReadFile(path): ¶

Tries to read a file.

If the file is not found, None is returned.

Parameters
path:string	Filename
Returns
None or string	Undocumented
Unknown Field: todo
Consider adding a generic ENOENT wrapper

_ENV_OVERRIDE = ¶

Undocumented

Value

compat.UniqueFrozenset(['list'])

_LIST_DEF_FIELDS: list[str] = ¶

Undocumented

Value

['name',
 'dtotal',
 'dfree',
 'mtotal',
 'mnode',
 'mfree',
 'pinst_cnt',
...

_LIST_POWER_COMMANDS: list[str] = ¶

Undocumented

Value

['on', 'off', 'cycle', 'status']

_LIST_STOR_DEF_FIELDS = ¶

Undocumented

Value

[constants.SF_NODE,
 constants.SF_TYPE,
 constants.SF_NAME,
 constants.SF_SIZE,
 constants.SF_USED,
 constants.SF_FREE,
 constants.SF_ALLOCATABLE]

_LIST_STOR_HEADERS = ¶

Undocumented

Value

{constants.SF_NODE: 'Node',
 constants.SF_TYPE: 'Type',
 constants.SF_NAME: 'Name',
 constants.SF_SIZE: 'Size',
 constants.SF_USED: 'Used',
 constants.SF_FREE: 'Free',
 constants.SF_ALLOCATABLE: 'Allocatable'}

_LIST_VOL_DEF_FIELDS: list[str] = ¶

Undocumented

Value

['node', 'phys', 'vg', 'name', 'size', 'instance']

_MODIFIABLE_STORAGE_TYPES = ¶

Undocumented

Value

list(constants.MODIFIABLE_STORAGE_FIELDS)

_OOB_COMMAND_ASK = ¶

Undocumented

Value

compat.UniqueFrozenset([constants.OOB_POWER_OFF, constants.OOB_POWER_CYCLE])

_REPAIRABLE_STORAGE_TYPES = ¶

Undocumented

Value

[st for st, so in constants.VALID_STORAGE_OPERATIONS.items() if constants.SO_FIX↵
_CONSISTENCY in so]

_STORAGE_TYPE_OPT = ¶

Undocumented

Value

cli_option('-t', '--storage-type',
           dest='user_storage_type',
           choices=list(_USER_STORAGE_TYPE),
           default=None,
           metavar='STORAGE_TYPE',
           help=('Storage type (%s)' % utils.CommaJoin(list(_USER_STORAGE_TYPE))))

_USER_STORAGE_TYPE = ¶

Undocumented

Value

{constants.ST_FILE: 'file',
 constants.ST_LVM_PV: 'lvm-pv',
 constants.ST_LVM_VG: 'lvm-vg',
 constants.ST_SHARED_FILE: 'sharedfile',
 constants.ST_GLUSTER: 'gluster'}

ganeti.client.gnt_node

`ganeti.client.gnt_node`