Package ganeti :: Package rapi :: Module client

Module client

Ganeti RAPI client.

Attention: To use the RAPI client, the application must call pycurl.global_init during initialization and pycurl.global_cleanup before exiting the process. This is very important in multi-threaded programs. See curl_global_init(3) and curl_global_cleanup(3) for details. The decorator UsesRapiClient can be used.

Classes

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Error
Base error class for this module.

GanetiApiError
Generic error raised from Ganeti API.

CertificateError
Raised when a problem is found with the SSL certificate.

GanetiRapiClient
Ganeti RAPI client.

Functions

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EpochNano()
Return the current timestamp expressed as number of nanoseconds since the unix epoch

source code

_AppendIf(container, condition, value)
Appends to a list if a condition evaluates to truth.

source code

_AppendDryRunIf(container, condition)
Appends a "dry-run" parameter if a condition evaluates to truth.

source code

_AppendForceIf(container, condition)
Appends a "force" parameter if a condition evaluates to truth.

source code

_AppendReason(container, reason)
Appends an element to the reason trail.

source code

_SetItemIf(container, condition, item, value)
Sets an item if a condition evaluates to truth.

source code

UsesRapiClient(fn)
Decorator for code using RAPI client to initialize pycURL.

source code

GenericCurlConfig(verbose=False, use_signal=False, use_curl_cabundle=False, cafile=None, capath=None, proxy=None, verify_hostname=False, connect_timeout=None, timeout=None, _pycurl_version_fn=pycurl.version_info)
Curl configuration function generator.

source code

Variables

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GANETI_RAPI_PORT = 5080

GANETI_RAPI_VERSION = 2

HTTP_DELETE = "DELETE"

HTTP_GET = "GET"

HTTP_PUT = "PUT"

HTTP_POST = "POST"

HTTP_OK = 200

HTTP_NOT_FOUND = 404

HTTP_APP_JSON = "application/json"

REPLACE_DISK_PRI = "replace_on_primary"

REPLACE_DISK_SECONDARY = "replace_on_secondary"

REPLACE_DISK_CHG = "replace_new_secondary"

REPLACE_DISK_AUTO = "replace_auto"

NODE_EVAC_PRI = "primary-only"

NODE_EVAC_SEC = "secondary-only"

NODE_EVAC_ALL = "all"

NODE_ROLE_DRAINED = "drained"

NODE_ROLE_MASTER_CANDIDATE = "master-candidate"

NODE_ROLE_MASTER = "master"

NODE_ROLE_OFFLINE = "offline"

NODE_ROLE_REGULAR = "regular"

JOB_STATUS_QUEUED = "queued"

JOB_STATUS_WAITING = "waiting"

JOB_STATUS_CANCELING = "canceling"

JOB_STATUS_RUNNING = "running"

JOB_STATUS_CANCELED = "canceled"

JOB_STATUS_SUCCESS = "success"

JOB_STATUS_ERROR = "error"

JOB_STATUS_PENDING = frozenset([JOB_STATUS_QUEUED, JOB_STATUS_...

JOB_STATUS_FINALIZED = frozenset([JOB_STATUS_CANCELED, JOB_STA...

JOB_STATUS_ALL = frozenset([JOB_STATUS_RUNNING,]) | JOB_STATUS...

JOB_STATUS_WAITLOCK = "waiting"

_REQ_DATA_VERSION_FIELD = "__version__"

_QPARAM_DRY_RUN = "dry-run"

_QPARAM_FORCE = "force"

INST_CREATE_REQV1 = "instance-create-reqv1"

INST_REINSTALL_REQV1 = "instance-reinstall-reqv1"

NODE_MIGRATE_REQV1 = "node-migrate-reqv1"

NODE_EVAC_RES1 = "node-evac-res1"

_INST_CREATE_REQV1 = "instance-create-reqv1"

_INST_REINSTALL_REQV1 = "instance-reinstall-reqv1"

_NODE_MIGRATE_REQV1 = "node-migrate-reqv1"

_NODE_EVAC_RES1 = "node-evac-res1"

ECODE_RESOLVER = "resolver_error"
Resolver errors

ECODE_NORES = "insufficient_resources"
Not enough resources (iallocator failure, disk space, memory, etc.)

ECODE_TEMP_NORES = "temp_insufficient_resources"
Temporarily out of resources; operation can be tried again

ECODE_INVAL = "wrong_input"
Wrong arguments (at syntax level)

ECODE_STATE = "wrong_state"
Wrong entity state

ECODE_NOENT = "unknown_entity"
Entity not found

ECODE_EXISTS = "already_exists"
Entity already exists

ECODE_NOTUNIQUE = "resource_not_unique"
Resource not unique (e.g.

ECODE_FAULT = "internal_error"
Internal cluster error

ECODE_ENVIRON = "environment_error"
Environment error (e.g.

ECODE_ALL = frozenset([ECODE_RESOLVER, ECODE_NORES, ECODE_TEMP...
List of all failure types

_CURLE_SSL_CACERT = 60

_CURLE_SSL_CACERT_BADFILE = 77

_CURL_SSL_CERT_ERRORS = frozenset([_CURLE_SSL_CACERT, _CURLE_S...

Imports: logging, simplejson, socket, urllib, threading, pycurl, time, StringIO

Function Details

[hide private]

EpochNano()

source code

Return the current timestamp expressed as number of nanoseconds since the unix epoch

Returns:: nanoseconds since the Unix epoch

_AppendReason(container, reason)

source code

Appends an element to the reason trail.

If the user provided a reason, it is added to the reason trail.

GenericCurlConfig(verbose=False, use_signal=False, use_curl_cabundle=False, cafile=None, capath=None, proxy=None, verify_hostname=False, connect_timeout=None, timeout=None, _pycurl_version_fn=pycurl.version_info)

source code

Curl configuration function generator.

Parameters:

verbose (bool) - Whether to set cURL to verbose mode
use_signal (bool) - Whether to allow cURL to use signals
use_curl_cabundle (bool) - Whether to use cURL's default CA bundle
cafile (string) - In which file we can find the certificates
capath (string) - In which directory we can find the certificates
proxy (string) - Proxy to use, None for default behaviour and empty string for disabling proxies (see curl_easy_setopt(3))
verify_hostname (bool) - Whether to verify the remote peer certificate's commonName
connect_timeout (number) - Timeout for establishing connection in seconds
timeout (number) - Timeout for complete transfer in seconds (see curl_easy_setopt(3)).

Variables Details

[hide private]

JOB_STATUS_PENDING

Value:

frozenset([JOB_STATUS_QUEUED, JOB_STATUS_WAITING, JOB_STATUS_CANCELING
,])

JOB_STATUS_FINALIZED

Value:

frozenset([JOB_STATUS_CANCELED, JOB_STATUS_SUCCESS, JOB_STATUS_ERROR,]
)

JOB_STATUS_ALL

Value:

frozenset([JOB_STATUS_RUNNING,]) | JOB_STATUS_PENDING | JOB_STATUS_FIN
ALIZED

ECODE_NOTUNIQUE

Resource not unique (e.g. MAC or IP duplication)

Value:

"resource_not_unique"

ECODE_ENVIRON

Environment error (e.g. node disk error)

Value:

"environment_error"

ECODE_ALL

List of all failure types

Value:

frozenset([ECODE_RESOLVER, ECODE_NORES, ECODE_TEMP_NORES, ECODE_INVAL,
 ECODE_STATE, ECODE_NOENT, ECODE_EXISTS, ECODE_NOTUNIQUE, ECODE_FAULT,
 ECODE_ENVIRON,])

_CURL_SSL_CERT_ERRORS

Value:

frozenset([_CURLE_SSL_CACERT, _CURLE_SSL_CACERT_BADFILE,])