Revision 8e70b181
| b/lib/backend.py | ||
|---|---|---|
| 1511 | 1511 |
@param name: the OS name we should look for |
| 1512 | 1512 |
@type os_dir: str |
| 1513 | 1513 |
@param os_dir: the directory inwhich we should look for the OS |
| 1514 |
@rtype: int or None |
|
| 1515 |
@return: |
|
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Either an integer denoting the version or None in the |
|
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case when this is not a valid OS name. |
|
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@raise errors.InvalidOS: if the OS cannot be found |
|
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@rtype: tuple |
|
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@return: tuple (status, data) with status denoting the validity and |
|
| 1516 |
data holding either the vaid versions or an error message |
|
| 1519 | 1517 |
|
| 1520 | 1518 |
""" |
| 1521 | 1519 |
api_file = os.path.sep.join([os_dir, "ganeti_api_version"]) |
| ... | ... | |
| 1593 | 1591 |
"""Create an OS instance from disk. |
| 1594 | 1592 |
|
| 1595 | 1593 |
This function will return an OS instance if the given name is a |
| 1596 |
valid OS name. Otherwise, it will raise an appropriate |
|
| 1597 |
L{errors.InvalidOS} exception, detailing why this is not a valid OS.
|
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| 1594 |
valid OS name. |
|
| 1598 | 1595 |
|
| 1599 | 1596 |
@type base_dir: string |
| 1600 | 1597 |
@keyword base_dir: Base directory containing OS installations. |
| ... | ... | |
| 1640 | 1637 |
return False, ("Script '%s' under path '%s' is not a regular file" %
|
| 1641 | 1638 |
(script, os_dir)) |
| 1642 | 1639 |
|
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os_obj = objects.OS(name=name, path=os_dir, status=constants.OS_VALID_STATUS,
|
|
| 1640 |
os_obj = objects.OS(name=name, path=os_dir, |
|
| 1644 | 1641 |
create_script=os_scripts[constants.OS_SCRIPT_CREATE], |
| 1645 | 1642 |
export_script=os_scripts[constants.OS_SCRIPT_EXPORT], |
| 1646 | 1643 |
import_script=os_scripts[constants.OS_SCRIPT_IMPORT], |
| b/lib/constants.py | ||
|---|---|---|
| 251 | 251 |
RPC_ENCODING_ZLIB_BASE64) = range(2) |
| 252 | 252 |
|
| 253 | 253 |
# os related constants |
| 254 |
OS_VALID_STATUS = "VALID" |
|
| 255 | 254 |
OS_SCRIPT_CREATE = 'create' |
| 256 | 255 |
OS_SCRIPT_IMPORT = 'import' |
| 257 | 256 |
OS_SCRIPT_EXPORT = 'export' |
| b/lib/errors.py | ||
|---|---|---|
| 98 | 98 |
pass |
| 99 | 99 |
|
| 100 | 100 |
|
| 101 |
class InvalidOS(GenericError): |
|
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"""Missing OS on node. |
|
| 103 |
|
|
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This is raised when an OS exists on the master (or is otherwise |
|
| 105 |
requested to the code) but not on the target node. |
|
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|
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This exception has three arguments: |
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- the name of the os |
|
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- the source directory, if any |
|
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- the reason why we consider this an invalid OS (text of error message) |
|
| 111 |
|
|
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""" |
|
| 113 |
|
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| 114 |
|
|
| 115 | 101 |
class ParameterError(GenericError): |
| 116 | 102 |
"""A passed parameter to a command is invalid. |
| 117 | 103 |
|
| b/lib/objects.py | ||
|---|---|---|
| 738 | 738 |
__slots__ = [ |
| 739 | 739 |
"name", |
| 740 | 740 |
"path", |
| 741 |
"status", |
|
| 742 | 741 |
"api_versions", |
| 743 | 742 |
"create_script", |
| 744 | 743 |
"export_script", |
| ... | ... | |
| 746 | 745 |
"rename_script", |
| 747 | 746 |
] |
| 748 | 747 |
|
| 749 |
@classmethod |
|
| 750 |
def FromInvalidOS(cls, err): |
|
| 751 |
"""Create an OS from an InvalidOS error. |
|
| 752 |
|
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This routine knows how to convert an InvalidOS error to an OS |
|
| 754 |
object representing the broken OS with a meaningful error message. |
|
| 755 |
|
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""" |
|
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if not isinstance(err, errors.InvalidOS): |
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raise errors.ProgrammerError("Trying to initialize an OS from an"
|
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" invalid object of type %s" % type(err)) |
|
| 760 |
|
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return cls(name=err.args[0], path=err.args[1], status=err.args[2]) |
|
| 762 |
|
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def __nonzero__(self): |
|
| 764 |
return self.status == constants.OS_VALID_STATUS |
|
| 765 |
|
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| 766 |
__bool__ = __nonzero__ |
|
| 767 |
|
|
| 768 | 748 |
|
| 769 | 749 |
class Node(TaggableObject): |
| 770 | 750 |
"""Config object representing a node.""" |
Also available in: Unified diff