Package ganeti :: Package client :: Module gnt_node

[frames] | no frames]

Module gnt_node

source code

Node related commands

Functions

[hide private]

ConvertStorageType(user_storage_type)
Converts a user storage type to its internal name.

source code

_RunSetupSSH(options, nodes)
Wrapper around utils.RunCmd to call setup-ssh

source code

int

AddNode(opts, args)
Add a node to the cluster.

source code

int

ListNodes(opts, args)
List nodes and their properties.

source code

int

ListNodeFields(opts, args)
List node fields.

source code

int

EvacuateNode(opts, args)
Relocate all secondary instance from a node.

source code

int

FailoverNode(opts, args)
Failover all primary instance on a node.

source code

MigrateNode(opts, args)
Migrate all primary instance on a node.

source code

int

ShowNodeConfig(opts, args)
Show node information.

source code

int

RemoveNode(opts, args)
Remove a node from the cluster.

source code

int

PowercycleNode(opts, args)
Remove a node from the cluster.

source code

int

PowerNode(opts, args)
Change/ask power state of a node.

source code

int

Health(opts, args)
Show health of a node using OOB.

source code

int

ListVolumes(opts, args)
List logical volumes on node(s).

source code

int

ListStorage(opts, args)
List physical volumes on node(s).

source code

int

ModifyStorage(opts, args)
Modify storage volume on a node.

source code

int

RepairStorage(opts, args)
Repairs a storage volume on a node.

source code

int

SetNodeParams(opts, args)
Modifies a node.

source code

Main()

source code

Variables

[hide private]

_LIST_DEF_FIELDS = ["name", "dtotal", "dfree", "mtotal", "mnod...
default list of field for ListNodes

_LIST_VOL_DEF_FIELDS = ["node", "phys", "vg", "name", "size", ...
Default field list for ListVolumes

_LIST_STOR_DEF_FIELDS = [constants.SF_NODE, constants.SF_TYPE,...
default list of field for ListStorage

_LIST_POWER_COMMANDS = ["on", "off", "cycle", "status"]
default list of power commands

_LIST_STOR_HEADERS = {constants.SF_NODE: "Node", constants.SF_...
headers (and full field list) for ListStorage

_USER_STORAGE_TYPE = {constants.ST_FILE: "file", constants.ST_...
User-facing storage unit types

_STORAGE_TYPE_OPT = cli_option("-t", "--storage-type", dest= "...

_REPAIRABLE_STORAGE_TYPES = [st for st, so in constants.VALID_...

_MODIFIABLE_STORAGE_TYPES = constants.MODIFIABLE_STORAGE_FIELD...

_OOB_COMMAND_ASK = frozenset([constants.OOB_POWER_OFF, constan...

NONODE_SETUP_OPT = cli_option("--no-node-setup", default= True...

IGNORE_STATUS_OPT = cli_option("--ignore-status", default= Fal...

commands = {"add":(AddNode, [ArgHost(min= 1, max= 1)], [SECOND...

Imports: itertools, cli, bootstrap, opcodes, utils, constants, errors, netutils, StringIO

Function Details

[hide private]

_RunSetupSSH(options, nodes)

source code

Wrapper around utils.RunCmd to call setup-ssh

Parameters:

options - The command line options
nodes - The nodes to setup

AddNode(opts, args)

source code

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

Decorators:

@UsesRPC

ListNodes(opts, args)

source code

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

ListNodeFields(opts, args)

source code

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

EvacuateNode(opts, args)

source code

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

FailoverNode(opts, args)

source code

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

ShowNodeConfig(opts, args)

source code

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

RemoveNode(opts, args)

source code

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

PowercycleNode(opts, args)

source code

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

PowerNode(opts, args)

source code

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

Health(opts, args)

source code

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

ListVolumes(opts, args)

source code

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

ListStorage(opts, args)

source code

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

ModifyStorage(opts, args)

source code

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

RepairStorage(opts, args)

source code

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

SetNodeParams(opts, args)

source code

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

Variables Details

[hide private]

_LIST_DEF_FIELDS

default list of field for ListNodes

Value:

["name", "dtotal", "dfree", "mtotal", "mnode", "mfree", "pinst_cnt", "
sinst_cnt",]

_LIST_VOL_DEF_FIELDS

Default field list for ListVolumes

Value:

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

_LIST_STOR_DEF_FIELDS

default list of field for ListStorage

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

headers (and full field list) for ListStorage

Value:

{constants.SF_NODE: "Node", constants.SF_TYPE: "Type", constants.SF_NA
ME: "Name", constants.SF_SIZE: "Size", constants.SF_USED: "Used", cons
tants.SF_FREE: "Free", constants.SF_ALLOCATABLE: "Allocatable",}

_USER_STORAGE_TYPE

User-facing storage unit types

Value:

{constants.ST_FILE: "file", constants.ST_LVM_PV: "lvm-pv", constants.S
T_LVM_VG: "lvm-vg",}

_STORAGE_TYPE_OPT

Value:

cli_option("-t", "--storage-type", dest= "user_storage_type", choices=
 _USER_STORAGE_TYPE.keys(), default= None, metavar= "STORAGE_TYPE", he
lp= ("Storage type (%s)" % utils.CommaJoin(_USER_STORAGE_TYPE.keys()))
)

_REPAIRABLE_STORAGE_TYPES

Value:

[st for st, so in constants.VALID_STORAGE_OPERATIONS.iteritems() if co
nstants.SO_FIX_CONSISTENCY in so]

_MODIFIABLE_STORAGE_TYPES

Value:

constants.MODIFIABLE_STORAGE_FIELDS.keys()

_OOB_COMMAND_ASK

Value:

frozenset([constants.OOB_POWER_OFF, constants.OOB_POWER_CYCLE])

NONODE_SETUP_OPT

Value:

cli_option("--no-node-setup", default= True, action= "store_false", de
st= "node_setup", help= ("Do not make initial SSH setup on remote" " n
ode (needs to be done manually)"))

IGNORE_STATUS_OPT

Value:

cli_option("--ignore-status", default= False, action= "store_true", de
st= "ignore_status", help= ("Ignore the Node(s) offline status" " (pot
entially DANGEROUS)"))

commands

Value:

{"add":(AddNode, [ArgHost(min= 1, max= 1)], [SECONDARY_IP_OPT, READD_O
PT, NOSSH_KEYCHECK_OPT, NODE_FORCE_JOIN_OPT, NONODE_SETUP_OPT, VERBOSE
_OPT, NODEGROUP_OPT, PRIORITY_OPT, CAPAB_MASTER_OPT, CAPAB_VM_OPT, NOD
E_PARAMS_OPT], "[-s ip] [--readd] [--no-ssh-key-check] [--force-join]"
 " [--no-node-setup] [--verbose]" " <node_name>", "Add a node to the c
luster"), "evacuate":(EvacuateNode, ARGS_ONE_NODE, [FORCE_OPT, IALLOCA
TOR_OPT, NEW_SECONDARY_OPT, EARLY_RELEASE_OPT, PRIORITY_OPT, PRIMARY_O
NLY_OPT, SECONDARY_ONLY_OPT], "[-f] {-I <iallocator> | -n <dst>} <node
...