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Add function for checking file access permissions
The CanRead function checks whether a user of the local machine (specifiedby name) can access a given file.
IsUserInGroup is a helper function for CanRead, but might also be usedindependently, so its name does not begin with an underscore....
Add function for generating UUIDs in the Haskell codebase
Its first use will be to generate the salt for ConfD requests of the Haskellclient, as in the Python client.
Unit test added as well.
Signed-off-by: Michele Tartara <mtartara@google.com>Reviewed-by: Iustin Pop <iustin@google.com>
utils.io: Improve handling of double and single slashes
Up until now “IsBelowDir("/", …)” would never return True. The reasonwas that an additional slash was added to the root path resulting in“//", which is “implementation-defined” in posix and treated specially...
Add initial implementation of prepare-node-join
This is a new tool as per the design document “design-ssh-setup”. Itreceives a JSON data structure on its standard input and configures theSSH daemon and root's SSH keys accordingly. Unit tests are included....
Compare significant fields only for simple SSH keys
For simple SSH keys, that is those without options such as“command="…"”, only the first two parts need to be compared. The thirdfield is a free-form comment.
This patch changes the comparison used in...
Migrate lib/utils/*.py from constants to pathutils
File system paths moved from constants to pathutils.
Signed-off-by: Michael Hanselmann <hansmi@google.com>Reviewed-by: Iustin Pop <iustin@google.com>
constants: Move most paths to separate module
This is inpreparation for the implementation of virtual clusters. Manypaths will change based on an environment variable and are no longerconstant and should no longer be in “constants.py”. Since “constants.py”...
Bump pep8 version to 1.2
Debian Wheezy will ship with this version, and it has many improved checks compared to 0.6, so let's:
- bump version in the docs- silence some new checks that are wrong due to our indent=2 instead of 4- fix lots of errors in the code where the indentation was wrong by 1...
Move helper class from watcher to utils.io
“FileStatHelper” can be used together with “ReadFile” to a file's statuswhile it's opened. This avoids certain race conditions.
Merge branch 'devel-2.5'
utils.WriteFile: Add new parameter to preserve file permissions
Signed-off-by: Bernardo Dal Seno <bdalseno@google.com>Reviewed-by: Iustin Pop <iustin@google.com>Reviewed-by: Michael Hanselmann <hansmi@google.com>
utils.io.WritePidFile: Improve error reporting
If the PID file is already locked by another process, try to readthe content and report it as part of the error message.
Move ErrnoOnStr backend function to utils
Signed-off-by: Guido Trotter <ultrotter@google.com>Reviewed-by: Iustin Pop <iustin@google.com>
utils.ListVisibleFiles: Hide “lost+found” directories
If a “lost+found” directory is found at a filesystem's root path it isignored. In all other cases directory entries named “lost+found” aretreated normally. Unittests are included. Fixes issue 153.
Signed-off-by: Michael Hanselmann <hansmi@google.com>...
Move RenameFile to the new functions
Signed-off-by: René Nussbaumer <rn@google.com>Reviewed-by: Michael Hanselmann <hansmi@google.com>
ensure_dirs: Move some useful functions into utils.
With this change we can easily reuse this functionality where it makessense on other parts of Ganeti.
Merge branch 'stable-2.5' into devel-2.5
Merge branch 'devel-2.4' into stable-2.5
Fix queue archive creation with wrong permissions
On a master failover some of the archive dirs might have wrongpermissions in the non-root model. This is due to the nature of nodedstill running as root and the job queue is synced that way. This patchwill fix this behaviour by setting the permissions accordingly....
TemporaryFilesManager implementation
Signed-off-by: Agata Murawska <agatamurawska@google.com>Reviewed-by: Michael Hanselmann <hansmi@google.com>
Switch other commonprefix to IsBelowDir
utils: Introduce IsBelowDir
This is mainly a wrapper to overcome the limitation of commonprefixwhich makes a string by string comparisation and reports the commonprefix in both strings. However this is bad for directory handling.
IsBelowDir works around this limitation and should be used in favour of...
PEP8 style fixes
Identified using the “pep8” utility.
utils.ReadFile: Add pre-read callback
This will be used by the watcher to store the file's fstat(2). It mustbe done from the filehandle.
Most boring patch ever
s/'/"/ in (hopefully) the right places.
Signed-off-by: Iustin Pop <iustin@google.com>Reviewed-by: Michael Hanselmann <hansmi@google.com>
Fix WriteFile with unicode data
Unicode is fun, indeed:
len(buffer("abc"))
3
len(buffer(u"abc"))
12
So we can't pass unicode data to buffer(), as the result will be towrite the in-memory (usually UTF-32) representation to disk.
Signed-off-by: Iustin Pop <iustin@google.com>...
Fix potential data-loss in utils.WriteFile
os.write can do incomplete writes, as long as at least some bytes havebeen written (like write(2)):
os.write(fd, " " * 1300)
1300
os.write(fd, " " * 1300)...
utils.WriteFile: Close file before renaming
Issue 154 (http://code.google.com/p/ganeti/issues/detail?id=154)reported an “Operation not supported” error when writing instanceexports to a mounted CIFS filesystem. Experimentation showed the errorto only occur when using rename(2) on an opened file. Various references...
utils: Drop RemovePidFile
It's equivalent to a simple RemoveFile now.
utils: Move NewUUID to utils.io
utils: Move process-related code into separate file
utils: Move I/O-related code into separate file