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1 | bd924ffd | Dimitris Aragiorgis | #!/usr/bin/env python |
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2 | bd924ffd | Dimitris Aragiorgis | # |
3 | bd924ffd | Dimitris Aragiorgis | # Copyright (C) 2012 Greek Research and Technology Network |
4 | bd924ffd | Dimitris Aragiorgis | # |
5 | bd924ffd | Dimitris Aragiorgis | # This program is free software; you can redistribute it and/or modify |
6 | bd924ffd | Dimitris Aragiorgis | # it under the terms of the GNU General Public License as published by |
7 | bd924ffd | Dimitris Aragiorgis | # the Free Software Foundation; either version 2 of the License, or |
8 | bd924ffd | Dimitris Aragiorgis | # (at your option) any later version. |
9 | bd924ffd | Dimitris Aragiorgis | # |
10 | bd924ffd | Dimitris Aragiorgis | # This program is distributed in the hope that it will be useful, but |
11 | bd924ffd | Dimitris Aragiorgis | # WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | bd924ffd | Dimitris Aragiorgis | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | bd924ffd | Dimitris Aragiorgis | # General Public License for more details. |
14 | bd924ffd | Dimitris Aragiorgis | # |
15 | bd924ffd | Dimitris Aragiorgis | # You should have received a copy of the GNU General Public License |
16 | bd924ffd | Dimitris Aragiorgis | # along with this program; if not, write to the Free Software |
17 | bd924ffd | Dimitris Aragiorgis | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
18 | bd924ffd | Dimitris Aragiorgis | # 02110-1301, USA. |
19 | bd924ffd | Dimitris Aragiorgis | |
20 | bd924ffd | Dimitris Aragiorgis | """Remove an existing file under a shared directory |
21 | bd924ffd | Dimitris Aragiorgis | |
22 | bd924ffd | Dimitris Aragiorgis | This program removes an existing file from a shared directory. It takes |
23 | bd924ffd | Dimitris Aragiorgis | it's input from environment variables. Specifically the following variables |
24 | bd924ffd | Dimitris Aragiorgis | should be present: |
25 | bd924ffd | Dimitris Aragiorgis | |
26 | bd924ffd | Dimitris Aragiorgis | - VOL_NAME: The name of the new Image file |
27 | bd924ffd | Dimitris Aragiorgis | |
28 | bd924ffd | Dimitris Aragiorgis | Returns O after successfull creation, 1 on failure |
29 | bd924ffd | Dimitris Aragiorgis | |
30 | bd924ffd | Dimitris Aragiorgis | """ |
31 | bd924ffd | Dimitris Aragiorgis | |
32 | bd924ffd | Dimitris Aragiorgis | import os |
33 | bd924ffd | Dimitris Aragiorgis | import sys |
34 | bd924ffd | Dimitris Aragiorgis | |
35 | bd924ffd | Dimitris Aragiorgis | sys.path.append("/usr/share/ganeti/") |
36 | bd924ffd | Dimitris Aragiorgis | |
37 | bd924ffd | Dimitris Aragiorgis | from ganeti import utils |
38 | bd924ffd | Dimitris Aragiorgis | |
39 | bd924ffd | Dimitris Aragiorgis | |
40 | bd924ffd | Dimitris Aragiorgis | # Default shared directory |
41 | bd924ffd | Dimitris Aragiorgis | SHARED_DIR = "/srv/ganeti/shared-file-storage" |
42 | bd924ffd | Dimitris Aragiorgis | |
43 | bd924ffd | Dimitris Aragiorgis | |
44 | bd924ffd | Dimitris Aragiorgis | def ReadEnv(): |
45 | bd924ffd | Dimitris Aragiorgis | """Read the mandatory enviromental variables |
46 | bd924ffd | Dimitris Aragiorgis | |
47 | bd924ffd | Dimitris Aragiorgis | """ |
48 | bd924ffd | Dimitris Aragiorgis | name = os.getenv("VOL_NAME") |
49 | bd924ffd | Dimitris Aragiorgis | if name is None: |
50 | bd924ffd | Dimitris Aragiorgis | sys.stderr.write('The environment variable VOL_NAME is missing.\n') |
51 | bd924ffd | Dimitris Aragiorgis | return None |
52 | bd924ffd | Dimitris Aragiorgis | shared_dir_param = os.getenv("EXTP_SHARED_DIR") |
53 | bd924ffd | Dimitris Aragiorgis | if shared_dir_param is not None: |
54 | bd924ffd | Dimitris Aragiorgis | sys.stderr.write('Found shared dir param, value: %s\n' % shared_dir_param) |
55 | bd924ffd | Dimitris Aragiorgis | |
56 | bd924ffd | Dimitris Aragiorgis | return (name, shared_dir_param) |
57 | bd924ffd | Dimitris Aragiorgis | |
58 | bd924ffd | Dimitris Aragiorgis | |
59 | bd924ffd | Dimitris Aragiorgis | def main(): |
60 | bd924ffd | Dimitris Aragiorgis | sys.stderr.write('Removal started: reading environment...\n') |
61 | bd924ffd | Dimitris Aragiorgis | |
62 | bd924ffd | Dimitris Aragiorgis | # Read environment |
63 | bd924ffd | Dimitris Aragiorgis | env = ReadEnv() |
64 | bd924ffd | Dimitris Aragiorgis | if env is None: |
65 | bd924ffd | Dimitris Aragiorgis | sys.stderr.write('Wrong environment. Aborting\n') |
66 | bd924ffd | Dimitris Aragiorgis | return 1 |
67 | bd924ffd | Dimitris Aragiorgis | |
68 | bd924ffd | Dimitris Aragiorgis | file_name, shared_dir_param = env |
69 | bd924ffd | Dimitris Aragiorgis | |
70 | bd924ffd | Dimitris Aragiorgis | if shared_dir_param is None: |
71 | bd924ffd | Dimitris Aragiorgis | shared_dir_param = SHARED_DIR |
72 | bd924ffd | Dimitris Aragiorgis | |
73 | bd924ffd | Dimitris Aragiorgis | file_path = utils.PathJoin(shared_dir_param, file_name) |
74 | bd924ffd | Dimitris Aragiorgis | |
75 | bd924ffd | Dimitris Aragiorgis | sys.stderr.write('Read environment successfully: file name: %s\n' % file_path) |
76 | bd924ffd | Dimitris Aragiorgis | |
77 | bd924ffd | Dimitris Aragiorgis | # Remove file |
78 | bd924ffd | Dimitris Aragiorgis | cmd = ["rm", "-f", "%s" % file_path] |
79 | bd924ffd | Dimitris Aragiorgis | result = utils.RunCmd(cmd) |
80 | bd924ffd | Dimitris Aragiorgis | if result.failed: |
81 | bd924ffd | Dimitris Aragiorgis | sys.stderr.write('Cannot remove Image file %s with `rm -f`: %s - %s\n' % |
82 | bd924ffd | Dimitris Aragiorgis | (file_path, result.fail_reason, result.output)) |
83 | bd924ffd | Dimitris Aragiorgis | return 1 |
84 | bd924ffd | Dimitris Aragiorgis | |
85 | bd924ffd | Dimitris Aragiorgis | sys.stderr.write('Image file %s removed successfully\n' % file_path) |
86 | bd924ffd | Dimitris Aragiorgis | return 0 |
87 | bd924ffd | Dimitris Aragiorgis | |
88 | bd924ffd | Dimitris Aragiorgis | |
89 | bd924ffd | Dimitris Aragiorgis | if __name__ == "__main__": |
90 | bd924ffd | Dimitris Aragiorgis | sys.exit(main()) |