root / lib / rapi / client.py @ b939de46
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#
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#
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# Copyright (C) 2010 Google Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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"""Ganeti RAPI client."""
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# No Ganeti-specific modules should be imported. The RAPI client is supposed to
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# be standalone.
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import sys |
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import httplib |
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import urllib2 |
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import logging |
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import simplejson |
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import socket |
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import urllib |
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import OpenSSL |
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import distutils.version |
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GANETI_RAPI_PORT = 5080
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GANETI_RAPI_VERSION = 2
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HTTP_DELETE = "DELETE"
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HTTP_GET = "GET"
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HTTP_PUT = "PUT"
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HTTP_POST = "POST"
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HTTP_OK = 200
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HTTP_NOT_FOUND = 404
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HTTP_APP_JSON = "application/json"
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REPLACE_DISK_PRI = "replace_on_primary"
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REPLACE_DISK_SECONDARY = "replace_on_secondary"
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REPLACE_DISK_CHG = "replace_new_secondary"
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REPLACE_DISK_AUTO = "replace_auto"
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NODE_ROLE_DRAINED = "drained"
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NODE_ROLE_MASTER_CANDIATE = "master-candidate"
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NODE_ROLE_MASTER = "master"
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NODE_ROLE_OFFLINE = "offline"
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NODE_ROLE_REGULAR = "regular"
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# Internal constants
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_REQ_DATA_VERSION_FIELD = "__version__"
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_INST_CREATE_REQV1 = "instance-create-reqv1"
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class Error(Exception): |
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"""Base error class for this module.
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"""
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pass
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class CertificateError(Error): |
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"""Raised when a problem is found with the SSL certificate.
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"""
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pass
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class GanetiApiError(Error): |
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"""Generic error raised from Ganeti API.
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"""
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def __init__(self, msg, code=None): |
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Error.__init__(self, msg)
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self.code = code
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def FormatX509Name(x509_name): |
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"""Formats an X509 name.
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@type x509_name: OpenSSL.crypto.X509Name
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"""
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try:
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# Only supported in pyOpenSSL 0.7 and above
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get_components_fn = x509_name.get_components |
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except AttributeError: |
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return repr(x509_name) |
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else:
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return "".join("/%s=%s" % (name, value) |
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for name, value in get_components_fn()) |
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class CertAuthorityVerify: |
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"""Certificate verificator for SSL context.
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Configures SSL context to verify server's certificate.
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"""
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_CAPATH_MINVERSION = "0.9"
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_DEFVFYPATHS_MINVERSION = "0.9"
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_PYOPENSSL_VERSION = OpenSSL.__version__ |
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_PARSED_PYOPENSSL_VERSION = distutils.version.LooseVersion(_PYOPENSSL_VERSION) |
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_SUPPORT_CAPATH = (_PARSED_PYOPENSSL_VERSION >= _CAPATH_MINVERSION) |
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_SUPPORT_DEFVFYPATHS = (_PARSED_PYOPENSSL_VERSION >= _DEFVFYPATHS_MINVERSION) |
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def __init__(self, cafile=None, capath=None, use_default_verify_paths=False): |
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"""Initializes this class.
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@type cafile: string
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@param cafile: In which file we can find the certificates
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@type capath: string
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@param capath: In which directory we can find the certificates
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@type use_default_verify_paths: bool
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@param use_default_verify_paths: Whether the platform provided CA
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certificates are to be used for
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verification purposes
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"""
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self._cafile = cafile
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self._capath = capath
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self._use_default_verify_paths = use_default_verify_paths
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if self._capath is not None and not self._SUPPORT_CAPATH: |
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raise Error(("PyOpenSSL %s has no support for a CA directory," |
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" version %s or above is required") %
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(self._PYOPENSSL_VERSION, self._CAPATH_MINVERSION)) |
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if self._use_default_verify_paths and not self._SUPPORT_DEFVFYPATHS: |
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raise Error(("PyOpenSSL %s has no support for using default verification" |
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" paths, version %s or above is required") %
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(self._PYOPENSSL_VERSION, self._DEFVFYPATHS_MINVERSION)) |
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@staticmethod
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def _VerifySslCertCb(logger, _, cert, errnum, errdepth, ok): |
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"""Callback for SSL certificate verification.
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@param logger: Logging object
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"""
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if ok:
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log_fn = logger.debug |
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else:
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log_fn = logger.error |
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log_fn("Verifying SSL certificate at depth %s, subject '%s', issuer '%s'",
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errdepth, FormatX509Name(cert.get_subject()), |
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FormatX509Name(cert.get_issuer())) |
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if not ok: |
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try:
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# Only supported in pyOpenSSL 0.7 and above
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# pylint: disable-msg=E1101
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fn = OpenSSL.crypto.X509_verify_cert_error_string |
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except AttributeError: |
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errmsg = ""
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else:
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errmsg = ":%s" % fn(errnum)
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logger.error("verify error:num=%s%s", errnum, errmsg)
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return ok
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def __call__(self, ctx, logger): |
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"""Configures an SSL context to verify certificates.
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@type ctx: OpenSSL.SSL.Context
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@param ctx: SSL context
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"""
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if self._use_default_verify_paths: |
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ctx.set_default_verify_paths() |
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if self._cafile or self._capath: |
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if self._SUPPORT_CAPATH: |
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ctx.load_verify_locations(self._cafile, self._capath) |
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else:
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ctx.load_verify_locations(self._cafile)
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ctx.set_verify(OpenSSL.SSL.VERIFY_PEER, |
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lambda conn, cert, errnum, errdepth, ok: \
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self._VerifySslCertCb(logger, conn, cert,
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errnum, errdepth, ok)) |
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class _HTTPSConnectionOpenSSL(httplib.HTTPSConnection): |
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"""HTTPS Connection handler that verifies the SSL certificate.
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"""
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# Python before version 2.6 had its own httplib.FakeSocket wrapper for
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# sockets
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_SUPPORT_FAKESOCKET = (sys.hexversion < 0x2060000)
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def __init__(self, *args, **kwargs): |
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"""Initializes this class.
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"""
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httplib.HTTPSConnection.__init__(self, *args, **kwargs)
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self._logger = None |
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self._config_ssl_verification = None |
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def Setup(self, logger, config_ssl_verification): |
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"""Sets the SSL verification config function.
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@param logger: Logging object
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@type config_ssl_verification: callable
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"""
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assert self._logger is None |
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assert self._config_ssl_verification is None |
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self._logger = logger
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self._config_ssl_verification = config_ssl_verification
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def connect(self): |
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"""Connect to the server specified when the object was created.
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This ensures that SSL certificates are verified.
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"""
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sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
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ctx = OpenSSL.SSL.Context(OpenSSL.SSL.TLSv1_METHOD) |
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ctx.set_options(OpenSSL.SSL.OP_NO_SSLv2) |
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if self._config_ssl_verification: |
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self._config_ssl_verification(ctx, self._logger) |
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ssl = OpenSSL.SSL.Connection(ctx, sock) |
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ssl.connect((self.host, self.port)) |
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if self._SUPPORT_FAKESOCKET: |
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self.sock = httplib.FakeSocket(sock, ssl)
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else:
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self.sock = _SslSocketWrapper(ssl)
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class _SslSocketWrapper(object): |
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def __init__(self, sock): |
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"""Initializes this class.
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"""
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self._sock = sock
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def __getattr__(self, name): |
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"""Forward everything to underlying socket.
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"""
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return getattr(self._sock, name) |
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def makefile(self, mode, bufsize): |
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"""Fake makefile method.
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makefile() on normal file descriptors uses dup2(2), which doesn't work with
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SSL sockets and therefore is not implemented by pyOpenSSL. This fake method
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works with the httplib module, but might not work for other modules.
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"""
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# pylint: disable-msg=W0212
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return socket._fileobject(self._sock, mode, bufsize) |
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class _HTTPSHandler(urllib2.HTTPSHandler): |
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def __init__(self, logger, config_ssl_verification): |
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"""Initializes this class.
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@param logger: Logging object
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@type config_ssl_verification: callable
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@param config_ssl_verification: Function to configure SSL context for
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certificate verification
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"""
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urllib2.HTTPSHandler.__init__(self)
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self._logger = logger
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self._config_ssl_verification = config_ssl_verification
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def _CreateHttpsConnection(self, *args, **kwargs): |
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"""Wrapper around L{_HTTPSConnectionOpenSSL} to add SSL verification.
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This wrapper is necessary provide a compatible API to urllib2.
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"""
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conn = _HTTPSConnectionOpenSSL(*args, **kwargs) |
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conn.Setup(self._logger, self._config_ssl_verification) |
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return conn
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def https_open(self, req): |
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"""Creates HTTPS connection.
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Called by urllib2.
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"""
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return self.do_open(self._CreateHttpsConnection, req) |
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class _RapiRequest(urllib2.Request): |
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def __init__(self, method, url, headers, data): |
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"""Initializes this class.
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"""
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urllib2.Request.__init__(self, url, data=data, headers=headers)
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self._method = method
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def get_method(self): |
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"""Returns the HTTP request method.
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"""
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return self._method |
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class GanetiRapiClient(object): |
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"""Ganeti RAPI client.
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"""
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USER_AGENT = "Ganeti RAPI Client"
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_json_encoder = simplejson.JSONEncoder(sort_keys=True)
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def __init__(self, host, port=GANETI_RAPI_PORT, |
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username=None, password=None, |
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config_ssl_verification=None, ignore_proxy=False, |
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logger=logging): |
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"""Constructor.
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@type host: string
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@param host: the ganeti cluster master to interact with
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@type port: int
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@param port: the port on which the RAPI is running (default is 5080)
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@type username: string
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@param username: the username to connect with
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@type password: string
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@param password: the password to connect with
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@type config_ssl_verification: callable
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@param config_ssl_verification: Function to configure SSL context for
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certificate verification
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@type ignore_proxy: bool
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@param ignore_proxy: Whether to ignore proxy settings
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@param logger: Logging object
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"""
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self._host = host
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self._port = port
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self._logger = logger
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self._base_url = "https://%s:%s" % (host, port) |
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handlers = [_HTTPSHandler(self._logger, config_ssl_verification)]
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if username is not None: |
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pwmgr = urllib2.HTTPPasswordMgrWithDefaultRealm() |
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pwmgr.add_password(None, self._base_url, username, password) |
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handlers.append(urllib2.HTTPBasicAuthHandler(pwmgr)) |
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elif password:
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raise Error("Specified password without username") |
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if ignore_proxy:
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handlers.append(urllib2.ProxyHandler({})) |
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self._http = urllib2.build_opener(*handlers) # pylint: disable-msg=W0142 |
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self._headers = {
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"Accept": HTTP_APP_JSON,
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"Content-type": HTTP_APP_JSON,
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"User-Agent": self.USER_AGENT, |
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} |
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@staticmethod
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def _EncodeQuery(query): |
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"""Encode query values for RAPI URL.
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@type query: list of two-tuples
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@param query: Query arguments
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@rtype: list
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@return: Query list with encoded values
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"""
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result = [] |
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for name, value in query: |
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if value is None: |
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result.append((name, ""))
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elif isinstance(value, bool): |
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# Boolean values must be encoded as 0 or 1
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result.append((name, int(value)))
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elif isinstance(value, (list, tuple, dict)): |
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raise ValueError("Invalid query data type %r" % type(value).__name__) |
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else:
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result.append((name, value)) |
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return result
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def _SendRequest(self, method, path, query, content): |
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"""Sends an HTTP request.
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This constructs a full URL, encodes and decodes HTTP bodies, and
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handles invalid responses in a pythonic way.
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@type method: string
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@param method: HTTP method to use
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@type path: string
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@param path: HTTP URL path
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@type query: list of two-tuples
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@param query: query arguments to pass to urllib.urlencode
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@type content: str or None
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@param content: HTTP body content
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@rtype: str
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@return: JSON-Decoded response
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@raises CertificateError: If an invalid SSL certificate is found
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@raises GanetiApiError: If an invalid response is returned
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"""
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assert path.startswith("/") |
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if content:
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encoded_content = self._json_encoder.encode(content)
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else:
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encoded_content = None
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# Build URL
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urlparts = [self._base_url, path]
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if query:
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urlparts.append("?")
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urlparts.append(urllib.urlencode(self._EncodeQuery(query)))
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url = "".join(urlparts)
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self._logger.debug("Sending request %s %s to %s:%s" |
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" (headers=%r, content=%r)",
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method, url, self._host, self._port, self._headers, |
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encoded_content) |
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req = _RapiRequest(method, url, self._headers, encoded_content)
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try:
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resp = self._http.open(req)
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encoded_response_content = resp.read() |
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except (OpenSSL.SSL.Error, OpenSSL.crypto.Error), err:
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raise CertificateError("SSL issue: %s (%r)" % (err, err)) |
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except urllib2.HTTPError, err:
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raise GanetiApiError(str(err), code=err.code) |
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except urllib2.URLError, err:
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raise GanetiApiError(str(err)) |
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if encoded_response_content:
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response_content = simplejson.loads(encoded_response_content) |
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else:
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response_content = None
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# TODO: Are there other status codes that are valid? (redirect?)
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if resp.code != HTTP_OK:
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if isinstance(response_content, dict): |
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msg = ("%s %s: %s" %
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(response_content["code"],
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response_content["message"],
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response_content["explain"]))
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else:
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msg = str(response_content)
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raise GanetiApiError(msg, code=resp.code)
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return response_content
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def GetVersion(self): |
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"""Gets the Remote API version running on the cluster.
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@rtype: int
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@return: Ganeti Remote API version
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"""
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return self._SendRequest(HTTP_GET, "/version", None, None) |
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def GetFeatures(self): |
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"""Gets the list of optional features supported by RAPI server.
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@rtype: list
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@return: List of optional features
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"""
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try:
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return self._SendRequest(HTTP_GET, "/%s/features" % GANETI_RAPI_VERSION, |
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None, None) |
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except GanetiApiError, err:
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# Older RAPI servers don't support this resource
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if err.code == HTTP_NOT_FOUND:
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return []
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raise
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def GetOperatingSystems(self): |
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"""Gets the Operating Systems running in the Ganeti cluster.
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@rtype: list of str
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@return: operating systems
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"""
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return self._SendRequest(HTTP_GET, "/%s/os" % GANETI_RAPI_VERSION, |
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None, None) |
514 |
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def GetInfo(self): |
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"""Gets info about the cluster.
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@rtype: dict
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@return: information about the cluster
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"""
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return self._SendRequest(HTTP_GET, "/%s/info" % GANETI_RAPI_VERSION, |
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None, None) |
524 |
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def GetClusterTags(self): |
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"""Gets the cluster tags.
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527 |
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@rtype: list of str
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@return: cluster tags
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"""
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return self._SendRequest(HTTP_GET, "/%s/tags" % GANETI_RAPI_VERSION, |
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None, None) |
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def AddClusterTags(self, tags, dry_run=False): |
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"""Adds tags to the cluster.
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@type tags: list of str
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@param tags: tags to add to the cluster
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@type dry_run: bool
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@param dry_run: whether to perform a dry run
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@rtype: int
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@return: job id
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546 |
"""
|
547 |
query = [("tag", t) for t in tags] |
548 |
if dry_run:
|
549 |
query.append(("dry-run", 1)) |
550 |
|
551 |
return self._SendRequest(HTTP_PUT, "/%s/tags" % GANETI_RAPI_VERSION, |
552 |
query, None)
|
553 |
|
554 |
def DeleteClusterTags(self, tags, dry_run=False): |
555 |
"""Deletes tags from the cluster.
|
556 |
|
557 |
@type tags: list of str
|
558 |
@param tags: tags to delete
|
559 |
@type dry_run: bool
|
560 |
@param dry_run: whether to perform a dry run
|
561 |
|
562 |
"""
|
563 |
query = [("tag", t) for t in tags] |
564 |
if dry_run:
|
565 |
query.append(("dry-run", 1)) |
566 |
|
567 |
return self._SendRequest(HTTP_DELETE, "/%s/tags" % GANETI_RAPI_VERSION, |
568 |
query, None)
|
569 |
|
570 |
def GetInstances(self, bulk=False): |
571 |
"""Gets information about instances on the cluster.
|
572 |
|
573 |
@type bulk: bool
|
574 |
@param bulk: whether to return all information about all instances
|
575 |
|
576 |
@rtype: list of dict or list of str
|
577 |
@return: if bulk is True, info about the instances, else a list of instances
|
578 |
|
579 |
"""
|
580 |
query = [] |
581 |
if bulk:
|
582 |
query.append(("bulk", 1)) |
583 |
|
584 |
instances = self._SendRequest(HTTP_GET,
|
585 |
"/%s/instances" % GANETI_RAPI_VERSION,
|
586 |
query, None)
|
587 |
if bulk:
|
588 |
return instances
|
589 |
else:
|
590 |
return [i["id"] for i in instances] |
591 |
|
592 |
def GetInstance(self, instance): |
593 |
"""Gets information about an instance.
|
594 |
|
595 |
@type instance: str
|
596 |
@param instance: instance whose info to return
|
597 |
|
598 |
@rtype: dict
|
599 |
@return: info about the instance
|
600 |
|
601 |
"""
|
602 |
return self._SendRequest(HTTP_GET, |
603 |
("/%s/instances/%s" %
|
604 |
(GANETI_RAPI_VERSION, instance)), None, None) |
605 |
|
606 |
def GetInstanceInfo(self, instance, static=None): |
607 |
"""Gets information about an instance.
|
608 |
|
609 |
@type instance: string
|
610 |
@param instance: Instance name
|
611 |
@rtype: string
|
612 |
@return: Job ID
|
613 |
|
614 |
"""
|
615 |
if static is not None: |
616 |
query = [("static", static)]
|
617 |
else:
|
618 |
query = None
|
619 |
|
620 |
return self._SendRequest(HTTP_GET, |
621 |
("/%s/instances/%s/info" %
|
622 |
(GANETI_RAPI_VERSION, instance)), query, None)
|
623 |
|
624 |
def CreateInstance(self, mode, name, disk_template, disks, nics, |
625 |
**kwargs): |
626 |
"""Creates a new instance.
|
627 |
|
628 |
More details for parameters can be found in the RAPI documentation.
|
629 |
|
630 |
@type mode: string
|
631 |
@param mode: Instance creation mode
|
632 |
@type name: string
|
633 |
@param name: Hostname of the instance to create
|
634 |
@type disk_template: string
|
635 |
@param disk_template: Disk template for instance (e.g. plain, diskless,
|
636 |
file, or drbd)
|
637 |
@type disks: list of dicts
|
638 |
@param disks: List of disk definitions
|
639 |
@type nics: list of dicts
|
640 |
@param nics: List of NIC definitions
|
641 |
@type dry_run: bool
|
642 |
@keyword dry_run: whether to perform a dry run
|
643 |
|
644 |
@rtype: int
|
645 |
@return: job id
|
646 |
|
647 |
"""
|
648 |
query = [] |
649 |
|
650 |
if kwargs.get("dry_run"): |
651 |
query.append(("dry-run", 1)) |
652 |
|
653 |
if _INST_CREATE_REQV1 in self.GetFeatures(): |
654 |
# All required fields for request data version 1
|
655 |
body = { |
656 |
_REQ_DATA_VERSION_FIELD: 1,
|
657 |
"mode": mode,
|
658 |
"name": name,
|
659 |
"disk_template": disk_template,
|
660 |
"disks": disks,
|
661 |
"nics": nics,
|
662 |
} |
663 |
|
664 |
conflicts = set(kwargs.iterkeys()) & set(body.iterkeys()) |
665 |
if conflicts:
|
666 |
raise GanetiApiError("Required fields can not be specified as" |
667 |
" keywords: %s" % ", ".join(conflicts)) |
668 |
|
669 |
body.update((key, value) for key, value in kwargs.iteritems() |
670 |
if key != "dry_run") |
671 |
else:
|
672 |
# TODO: Implement instance creation request data version 0
|
673 |
# When implementing version 0, care should be taken to refuse unknown
|
674 |
# parameters and invalid values. The interface of this function must stay
|
675 |
# exactly the same for version 0 and 1 (e.g. they aren't allowed to
|
676 |
# require different data types).
|
677 |
raise NotImplementedError("Support for instance creation request data" |
678 |
" version 0 is not yet implemented")
|
679 |
|
680 |
return self._SendRequest(HTTP_POST, "/%s/instances" % GANETI_RAPI_VERSION, |
681 |
query, body) |
682 |
|
683 |
def DeleteInstance(self, instance, dry_run=False): |
684 |
"""Deletes an instance.
|
685 |
|
686 |
@type instance: str
|
687 |
@param instance: the instance to delete
|
688 |
|
689 |
@rtype: int
|
690 |
@return: job id
|
691 |
|
692 |
"""
|
693 |
query = [] |
694 |
if dry_run:
|
695 |
query.append(("dry-run", 1)) |
696 |
|
697 |
return self._SendRequest(HTTP_DELETE, |
698 |
("/%s/instances/%s" %
|
699 |
(GANETI_RAPI_VERSION, instance)), query, None)
|
700 |
|
701 |
def GetInstanceTags(self, instance): |
702 |
"""Gets tags for an instance.
|
703 |
|
704 |
@type instance: str
|
705 |
@param instance: instance whose tags to return
|
706 |
|
707 |
@rtype: list of str
|
708 |
@return: tags for the instance
|
709 |
|
710 |
"""
|
711 |
return self._SendRequest(HTTP_GET, |
712 |
("/%s/instances/%s/tags" %
|
713 |
(GANETI_RAPI_VERSION, instance)), None, None) |
714 |
|
715 |
def AddInstanceTags(self, instance, tags, dry_run=False): |
716 |
"""Adds tags to an instance.
|
717 |
|
718 |
@type instance: str
|
719 |
@param instance: instance to add tags to
|
720 |
@type tags: list of str
|
721 |
@param tags: tags to add to the instance
|
722 |
@type dry_run: bool
|
723 |
@param dry_run: whether to perform a dry run
|
724 |
|
725 |
@rtype: int
|
726 |
@return: job id
|
727 |
|
728 |
"""
|
729 |
query = [("tag", t) for t in tags] |
730 |
if dry_run:
|
731 |
query.append(("dry-run", 1)) |
732 |
|
733 |
return self._SendRequest(HTTP_PUT, |
734 |
("/%s/instances/%s/tags" %
|
735 |
(GANETI_RAPI_VERSION, instance)), query, None)
|
736 |
|
737 |
def DeleteInstanceTags(self, instance, tags, dry_run=False): |
738 |
"""Deletes tags from an instance.
|
739 |
|
740 |
@type instance: str
|
741 |
@param instance: instance to delete tags from
|
742 |
@type tags: list of str
|
743 |
@param tags: tags to delete
|
744 |
@type dry_run: bool
|
745 |
@param dry_run: whether to perform a dry run
|
746 |
|
747 |
"""
|
748 |
query = [("tag", t) for t in tags] |
749 |
if dry_run:
|
750 |
query.append(("dry-run", 1)) |
751 |
|
752 |
return self._SendRequest(HTTP_DELETE, |
753 |
("/%s/instances/%s/tags" %
|
754 |
(GANETI_RAPI_VERSION, instance)), query, None)
|
755 |
|
756 |
def RebootInstance(self, instance, reboot_type=None, ignore_secondaries=None, |
757 |
dry_run=False):
|
758 |
"""Reboots an instance.
|
759 |
|
760 |
@type instance: str
|
761 |
@param instance: instance to rebot
|
762 |
@type reboot_type: str
|
763 |
@param reboot_type: one of: hard, soft, full
|
764 |
@type ignore_secondaries: bool
|
765 |
@param ignore_secondaries: if True, ignores errors for the secondary node
|
766 |
while re-assembling disks (in hard-reboot mode only)
|
767 |
@type dry_run: bool
|
768 |
@param dry_run: whether to perform a dry run
|
769 |
|
770 |
"""
|
771 |
query = [] |
772 |
if reboot_type:
|
773 |
query.append(("type", reboot_type))
|
774 |
if ignore_secondaries is not None: |
775 |
query.append(("ignore_secondaries", ignore_secondaries))
|
776 |
if dry_run:
|
777 |
query.append(("dry-run", 1)) |
778 |
|
779 |
return self._SendRequest(HTTP_POST, |
780 |
("/%s/instances/%s/reboot" %
|
781 |
(GANETI_RAPI_VERSION, instance)), query, None)
|
782 |
|
783 |
def ShutdownInstance(self, instance, dry_run=False): |
784 |
"""Shuts down an instance.
|
785 |
|
786 |
@type instance: str
|
787 |
@param instance: the instance to shut down
|
788 |
@type dry_run: bool
|
789 |
@param dry_run: whether to perform a dry run
|
790 |
|
791 |
"""
|
792 |
query = [] |
793 |
if dry_run:
|
794 |
query.append(("dry-run", 1)) |
795 |
|
796 |
return self._SendRequest(HTTP_PUT, |
797 |
("/%s/instances/%s/shutdown" %
|
798 |
(GANETI_RAPI_VERSION, instance)), query, None)
|
799 |
|
800 |
def StartupInstance(self, instance, dry_run=False): |
801 |
"""Starts up an instance.
|
802 |
|
803 |
@type instance: str
|
804 |
@param instance: the instance to start up
|
805 |
@type dry_run: bool
|
806 |
@param dry_run: whether to perform a dry run
|
807 |
|
808 |
"""
|
809 |
query = [] |
810 |
if dry_run:
|
811 |
query.append(("dry-run", 1)) |
812 |
|
813 |
return self._SendRequest(HTTP_PUT, |
814 |
("/%s/instances/%s/startup" %
|
815 |
(GANETI_RAPI_VERSION, instance)), query, None)
|
816 |
|
817 |
def ReinstallInstance(self, instance, os, no_startup=False): |
818 |
"""Reinstalls an instance.
|
819 |
|
820 |
@type instance: str
|
821 |
@param instance: the instance to reinstall
|
822 |
@type os: str
|
823 |
@param os: the os to reinstall
|
824 |
@type no_startup: bool
|
825 |
@param no_startup: whether to start the instance automatically
|
826 |
|
827 |
"""
|
828 |
query = [("os", os)]
|
829 |
if no_startup:
|
830 |
query.append(("nostartup", 1)) |
831 |
return self._SendRequest(HTTP_POST, |
832 |
("/%s/instances/%s/reinstall" %
|
833 |
(GANETI_RAPI_VERSION, instance)), query, None)
|
834 |
|
835 |
def ReplaceInstanceDisks(self, instance, disks=None, mode=REPLACE_DISK_AUTO, |
836 |
remote_node=None, iallocator=None, dry_run=False): |
837 |
"""Replaces disks on an instance.
|
838 |
|
839 |
@type instance: str
|
840 |
@param instance: instance whose disks to replace
|
841 |
@type disks: list of ints
|
842 |
@param disks: Indexes of disks to replace
|
843 |
@type mode: str
|
844 |
@param mode: replacement mode to use (defaults to replace_auto)
|
845 |
@type remote_node: str or None
|
846 |
@param remote_node: new secondary node to use (for use with
|
847 |
replace_new_secondary mode)
|
848 |
@type iallocator: str or None
|
849 |
@param iallocator: instance allocator plugin to use (for use with
|
850 |
replace_auto mode)
|
851 |
@type dry_run: bool
|
852 |
@param dry_run: whether to perform a dry run
|
853 |
|
854 |
@rtype: int
|
855 |
@return: job id
|
856 |
|
857 |
"""
|
858 |
query = [ |
859 |
("mode", mode),
|
860 |
] |
861 |
|
862 |
if disks:
|
863 |
query.append(("disks", ",".join(str(idx) for idx in disks))) |
864 |
|
865 |
if remote_node:
|
866 |
query.append(("remote_node", remote_node))
|
867 |
|
868 |
if iallocator:
|
869 |
query.append(("iallocator", iallocator))
|
870 |
|
871 |
if dry_run:
|
872 |
query.append(("dry-run", 1)) |
873 |
|
874 |
return self._SendRequest(HTTP_POST, |
875 |
("/%s/instances/%s/replace-disks" %
|
876 |
(GANETI_RAPI_VERSION, instance)), query, None)
|
877 |
|
878 |
def PrepareExport(self, instance, mode): |
879 |
"""Prepares an instance for an export.
|
880 |
|
881 |
@type instance: string
|
882 |
@param instance: Instance name
|
883 |
@type mode: string
|
884 |
@param mode: Export mode
|
885 |
@rtype: string
|
886 |
@return: Job ID
|
887 |
|
888 |
"""
|
889 |
query = [("mode", mode)]
|
890 |
return self._SendRequest(HTTP_PUT, |
891 |
("/%s/instances/%s/prepare-export" %
|
892 |
(GANETI_RAPI_VERSION, instance)), query, None)
|
893 |
|
894 |
def ExportInstance(self, instance, mode, destination, shutdown=None, |
895 |
remove_instance=None,
|
896 |
x509_key_name=None, destination_x509_ca=None): |
897 |
"""Exports an instance.
|
898 |
|
899 |
@type instance: string
|
900 |
@param instance: Instance name
|
901 |
@type mode: string
|
902 |
@param mode: Export mode
|
903 |
@rtype: string
|
904 |
@return: Job ID
|
905 |
|
906 |
"""
|
907 |
body = { |
908 |
"destination": destination,
|
909 |
"mode": mode,
|
910 |
} |
911 |
|
912 |
if shutdown is not None: |
913 |
body["shutdown"] = shutdown
|
914 |
|
915 |
if remove_instance is not None: |
916 |
body["remove_instance"] = remove_instance
|
917 |
|
918 |
if x509_key_name is not None: |
919 |
body["x509_key_name"] = x509_key_name
|
920 |
|
921 |
if destination_x509_ca is not None: |
922 |
body["destination_x509_ca"] = destination_x509_ca
|
923 |
|
924 |
return self._SendRequest(HTTP_PUT, |
925 |
("/%s/instances/%s/export" %
|
926 |
(GANETI_RAPI_VERSION, instance)), None, body)
|
927 |
|
928 |
def GetJobs(self): |
929 |
"""Gets all jobs for the cluster.
|
930 |
|
931 |
@rtype: list of int
|
932 |
@return: job ids for the cluster
|
933 |
|
934 |
"""
|
935 |
return [int(j["id"]) |
936 |
for j in self._SendRequest(HTTP_GET, |
937 |
"/%s/jobs" % GANETI_RAPI_VERSION,
|
938 |
None, None)] |
939 |
|
940 |
def GetJobStatus(self, job_id): |
941 |
"""Gets the status of a job.
|
942 |
|
943 |
@type job_id: int
|
944 |
@param job_id: job id whose status to query
|
945 |
|
946 |
@rtype: dict
|
947 |
@return: job status
|
948 |
|
949 |
"""
|
950 |
return self._SendRequest(HTTP_GET, |
951 |
"/%s/jobs/%s" % (GANETI_RAPI_VERSION, job_id),
|
952 |
None, None) |
953 |
|
954 |
def WaitForJobChange(self, job_id, fields, prev_job_info, prev_log_serial): |
955 |
"""Waits for job changes.
|
956 |
|
957 |
@type job_id: int
|
958 |
@param job_id: Job ID for which to wait
|
959 |
|
960 |
"""
|
961 |
body = { |
962 |
"fields": fields,
|
963 |
"previous_job_info": prev_job_info,
|
964 |
"previous_log_serial": prev_log_serial,
|
965 |
} |
966 |
|
967 |
return self._SendRequest(HTTP_GET, |
968 |
"/%s/jobs/%s/wait" % (GANETI_RAPI_VERSION, job_id),
|
969 |
None, body)
|
970 |
|
971 |
def CancelJob(self, job_id, dry_run=False): |
972 |
"""Cancels a job.
|
973 |
|
974 |
@type job_id: int
|
975 |
@param job_id: id of the job to delete
|
976 |
@type dry_run: bool
|
977 |
@param dry_run: whether to perform a dry run
|
978 |
|
979 |
"""
|
980 |
query = [] |
981 |
if dry_run:
|
982 |
query.append(("dry-run", 1)) |
983 |
|
984 |
return self._SendRequest(HTTP_DELETE, |
985 |
"/%s/jobs/%s" % (GANETI_RAPI_VERSION, job_id),
|
986 |
query, None)
|
987 |
|
988 |
def GetNodes(self, bulk=False): |
989 |
"""Gets all nodes in the cluster.
|
990 |
|
991 |
@type bulk: bool
|
992 |
@param bulk: whether to return all information about all instances
|
993 |
|
994 |
@rtype: list of dict or str
|
995 |
@return: if bulk is true, info about nodes in the cluster,
|
996 |
else list of nodes in the cluster
|
997 |
|
998 |
"""
|
999 |
query = [] |
1000 |
if bulk:
|
1001 |
query.append(("bulk", 1)) |
1002 |
|
1003 |
nodes = self._SendRequest(HTTP_GET, "/%s/nodes" % GANETI_RAPI_VERSION, |
1004 |
query, None)
|
1005 |
if bulk:
|
1006 |
return nodes
|
1007 |
else:
|
1008 |
return [n["id"] for n in nodes] |
1009 |
|
1010 |
def GetNode(self, node): |
1011 |
"""Gets information about a node.
|
1012 |
|
1013 |
@type node: str
|
1014 |
@param node: node whose info to return
|
1015 |
|
1016 |
@rtype: dict
|
1017 |
@return: info about the node
|
1018 |
|
1019 |
"""
|
1020 |
return self._SendRequest(HTTP_GET, |
1021 |
"/%s/nodes/%s" % (GANETI_RAPI_VERSION, node),
|
1022 |
None, None) |
1023 |
|
1024 |
def EvacuateNode(self, node, iallocator=None, remote_node=None, |
1025 |
dry_run=False, early_release=False): |
1026 |
"""Evacuates instances from a Ganeti node.
|
1027 |
|
1028 |
@type node: str
|
1029 |
@param node: node to evacuate
|
1030 |
@type iallocator: str or None
|
1031 |
@param iallocator: instance allocator to use
|
1032 |
@type remote_node: str
|
1033 |
@param remote_node: node to evaucate to
|
1034 |
@type dry_run: bool
|
1035 |
@param dry_run: whether to perform a dry run
|
1036 |
@type early_release: bool
|
1037 |
@param early_release: whether to enable parallelization
|
1038 |
|
1039 |
@rtype: list
|
1040 |
@return: list of (job ID, instance name, new secondary node); if
|
1041 |
dry_run was specified, then the actual move jobs were not
|
1042 |
submitted and the job IDs will be C{None}
|
1043 |
|
1044 |
@raises GanetiApiError: if an iallocator and remote_node are both
|
1045 |
specified
|
1046 |
|
1047 |
"""
|
1048 |
if iallocator and remote_node: |
1049 |
raise GanetiApiError("Only one of iallocator or remote_node can be used") |
1050 |
|
1051 |
query = [] |
1052 |
if iallocator:
|
1053 |
query.append(("iallocator", iallocator))
|
1054 |
if remote_node:
|
1055 |
query.append(("remote_node", remote_node))
|
1056 |
if dry_run:
|
1057 |
query.append(("dry-run", 1)) |
1058 |
if early_release:
|
1059 |
query.append(("early_release", 1)) |
1060 |
|
1061 |
return self._SendRequest(HTTP_POST, |
1062 |
("/%s/nodes/%s/evacuate" %
|
1063 |
(GANETI_RAPI_VERSION, node)), query, None)
|
1064 |
|
1065 |
def MigrateNode(self, node, live=True, dry_run=False): |
1066 |
"""Migrates all primary instances from a node.
|
1067 |
|
1068 |
@type node: str
|
1069 |
@param node: node to migrate
|
1070 |
@type live: bool
|
1071 |
@param live: whether to use live migration
|
1072 |
@type dry_run: bool
|
1073 |
@param dry_run: whether to perform a dry run
|
1074 |
|
1075 |
@rtype: int
|
1076 |
@return: job id
|
1077 |
|
1078 |
"""
|
1079 |
query = [] |
1080 |
if live:
|
1081 |
query.append(("live", 1)) |
1082 |
if dry_run:
|
1083 |
query.append(("dry-run", 1)) |
1084 |
|
1085 |
return self._SendRequest(HTTP_POST, |
1086 |
("/%s/nodes/%s/migrate" %
|
1087 |
(GANETI_RAPI_VERSION, node)), query, None)
|
1088 |
|
1089 |
def GetNodeRole(self, node): |
1090 |
"""Gets the current role for a node.
|
1091 |
|
1092 |
@type node: str
|
1093 |
@param node: node whose role to return
|
1094 |
|
1095 |
@rtype: str
|
1096 |
@return: the current role for a node
|
1097 |
|
1098 |
"""
|
1099 |
return self._SendRequest(HTTP_GET, |
1100 |
("/%s/nodes/%s/role" %
|
1101 |
(GANETI_RAPI_VERSION, node)), None, None) |
1102 |
|
1103 |
def SetNodeRole(self, node, role, force=False): |
1104 |
"""Sets the role for a node.
|
1105 |
|
1106 |
@type node: str
|
1107 |
@param node: the node whose role to set
|
1108 |
@type role: str
|
1109 |
@param role: the role to set for the node
|
1110 |
@type force: bool
|
1111 |
@param force: whether to force the role change
|
1112 |
|
1113 |
@rtype: int
|
1114 |
@return: job id
|
1115 |
|
1116 |
"""
|
1117 |
query = [ |
1118 |
("force", force),
|
1119 |
] |
1120 |
|
1121 |
return self._SendRequest(HTTP_PUT, |
1122 |
("/%s/nodes/%s/role" %
|
1123 |
(GANETI_RAPI_VERSION, node)), query, role) |
1124 |
|
1125 |
def GetNodeStorageUnits(self, node, storage_type, output_fields): |
1126 |
"""Gets the storage units for a node.
|
1127 |
|
1128 |
@type node: str
|
1129 |
@param node: the node whose storage units to return
|
1130 |
@type storage_type: str
|
1131 |
@param storage_type: storage type whose units to return
|
1132 |
@type output_fields: str
|
1133 |
@param output_fields: storage type fields to return
|
1134 |
|
1135 |
@rtype: int
|
1136 |
@return: job id where results can be retrieved
|
1137 |
|
1138 |
"""
|
1139 |
query = [ |
1140 |
("storage_type", storage_type),
|
1141 |
("output_fields", output_fields),
|
1142 |
] |
1143 |
|
1144 |
return self._SendRequest(HTTP_GET, |
1145 |
("/%s/nodes/%s/storage" %
|
1146 |
(GANETI_RAPI_VERSION, node)), query, None)
|
1147 |
|
1148 |
def ModifyNodeStorageUnits(self, node, storage_type, name, allocatable=None): |
1149 |
"""Modifies parameters of storage units on the node.
|
1150 |
|
1151 |
@type node: str
|
1152 |
@param node: node whose storage units to modify
|
1153 |
@type storage_type: str
|
1154 |
@param storage_type: storage type whose units to modify
|
1155 |
@type name: str
|
1156 |
@param name: name of the storage unit
|
1157 |
@type allocatable: bool or None
|
1158 |
@param allocatable: Whether to set the "allocatable" flag on the storage
|
1159 |
unit (None=no modification, True=set, False=unset)
|
1160 |
|
1161 |
@rtype: int
|
1162 |
@return: job id
|
1163 |
|
1164 |
"""
|
1165 |
query = [ |
1166 |
("storage_type", storage_type),
|
1167 |
("name", name),
|
1168 |
] |
1169 |
|
1170 |
if allocatable is not None: |
1171 |
query.append(("allocatable", allocatable))
|
1172 |
|
1173 |
return self._SendRequest(HTTP_PUT, |
1174 |
("/%s/nodes/%s/storage/modify" %
|
1175 |
(GANETI_RAPI_VERSION, node)), query, None)
|
1176 |
|
1177 |
def RepairNodeStorageUnits(self, node, storage_type, name): |
1178 |
"""Repairs a storage unit on the node.
|
1179 |
|
1180 |
@type node: str
|
1181 |
@param node: node whose storage units to repair
|
1182 |
@type storage_type: str
|
1183 |
@param storage_type: storage type to repair
|
1184 |
@type name: str
|
1185 |
@param name: name of the storage unit to repair
|
1186 |
|
1187 |
@rtype: int
|
1188 |
@return: job id
|
1189 |
|
1190 |
"""
|
1191 |
query = [ |
1192 |
("storage_type", storage_type),
|
1193 |
("name", name),
|
1194 |
] |
1195 |
|
1196 |
return self._SendRequest(HTTP_PUT, |
1197 |
("/%s/nodes/%s/storage/repair" %
|
1198 |
(GANETI_RAPI_VERSION, node)), query, None)
|
1199 |
|
1200 |
def GetNodeTags(self, node): |
1201 |
"""Gets the tags for a node.
|
1202 |
|
1203 |
@type node: str
|
1204 |
@param node: node whose tags to return
|
1205 |
|
1206 |
@rtype: list of str
|
1207 |
@return: tags for the node
|
1208 |
|
1209 |
"""
|
1210 |
return self._SendRequest(HTTP_GET, |
1211 |
("/%s/nodes/%s/tags" %
|
1212 |
(GANETI_RAPI_VERSION, node)), None, None) |
1213 |
|
1214 |
def AddNodeTags(self, node, tags, dry_run=False): |
1215 |
"""Adds tags to a node.
|
1216 |
|
1217 |
@type node: str
|
1218 |
@param node: node to add tags to
|
1219 |
@type tags: list of str
|
1220 |
@param tags: tags to add to the node
|
1221 |
@type dry_run: bool
|
1222 |
@param dry_run: whether to perform a dry run
|
1223 |
|
1224 |
@rtype: int
|
1225 |
@return: job id
|
1226 |
|
1227 |
"""
|
1228 |
query = [("tag", t) for t in tags] |
1229 |
if dry_run:
|
1230 |
query.append(("dry-run", 1)) |
1231 |
|
1232 |
return self._SendRequest(HTTP_PUT, |
1233 |
("/%s/nodes/%s/tags" %
|
1234 |
(GANETI_RAPI_VERSION, node)), query, tags) |
1235 |
|
1236 |
def DeleteNodeTags(self, node, tags, dry_run=False): |
1237 |
"""Delete tags from a node.
|
1238 |
|
1239 |
@type node: str
|
1240 |
@param node: node to remove tags from
|
1241 |
@type tags: list of str
|
1242 |
@param tags: tags to remove from the node
|
1243 |
@type dry_run: bool
|
1244 |
@param dry_run: whether to perform a dry run
|
1245 |
|
1246 |
@rtype: int
|
1247 |
@return: job id
|
1248 |
|
1249 |
"""
|
1250 |
query = [("tag", t) for t in tags] |
1251 |
if dry_run:
|
1252 |
query.append(("dry-run", 1)) |
1253 |
|
1254 |
return self._SendRequest(HTTP_DELETE, |
1255 |
("/%s/nodes/%s/tags" %
|
1256 |
(GANETI_RAPI_VERSION, node)), query, None)
|