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[Bacula-devel] Python Startup Script
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From: Joris H. <jh...@ma...> - 2011-07-16 18:36:22
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Ok,
at his time no answer received from user-list. Now i want ask questing
here in the developer list...
i played with this script:
1 #
2 # Bacula Python interface script for the Director
3 #
4
5 # You must import both sys and bacula
6 import sys, bacula
7
8 class globalVars():
9 def __init__( self ):
10 self.fullBackupIsActive = False
11
12 myGlobal = globalVars()
13
14 # This is the list of Bacula daemon events that you
15 # can receive.
16 class BaculaEvents(object):
17 def __init__(self):
18 # Called here when a new Bacula Events class is
19 # is created. Normally not used
20 noop = 1
21
22 def JobStart(self, job):
23 """
24 Called here when a new job is started. If you want
25 to do anything with the Job, you must register
26 events you want to receive.
27 """
28 events = JobEvents() # create instance of Job class
29 events.job = job # save Bacula's job pointer
30 job.set_events(events) # register events desired
31 sys.stderr = events # send error output to Bacula
32 sys.stdout = events # send stdout to Bacula
33 jobid = job.JobId; client = job.Client
34 numvols = job.NumVols
35 prio = job.Priority
36 job.JobReport="Python Dir JobStart: JobId=%d Client=%s
NumVols=%d\n Priority=%s" % (jobid,client,numvols,prio)
37
38 # Bacula Job is going to terminate
39 def JobEnd(self, job):
40 # global i
41 jobid = job.JobId
42 client = job.Client
43 job.JobReport="Python Dir JobEnd output: JobId=%d
Status=%s Client=%s.\n" % (jobid, job.JobStatus, client)
44 if (job.Client == "stf-imap1") and (job.Level == "Full"):
45 myGlobal.fullBackupIsActive = False
46 job.JobReport="Imap Full Backup finished other
following jobs keep there priority"
47
48 # Called here when the Bacula daemon is going to exit
49 def Exit(self, job):
50 print "Daemon exiting."
51
52 bacula.set_events(BaculaEvents()) # register daemon events
desired
53
54 """
55 There are the Job events that you can receive.
56 """
57 class JobEvents(object):
58 def __init__(self):
59 # Called here when you instantiate the Job. Not
60 # normally used
61 noop = 1
62
63 def JobInit(self, job):
64 #noop = 1
65 #if (job.JobId < 2):
66 #startid = job.run("run kernsave")
67 #job.JobReport = "Python started new Job: jobid=%d\n"
% startid
68
69 print "name=%s version=%s conf=%s working=%s" %
(bacula.Name, bacula.Version, bacula.ConfigFile, bacula.WorkingDir)
70 if (myGlobal.fullBackupIsActive):
71 job.Priority = 9
72 job.JobReport = "Priority changed to 9 because
Imap-Fullbackup ist running..."
73 if (job.Client == "stf-imap1") and (job.Level == "Full"):
74 myGlobal.fullBackupIsActive=True
75 job.JobReport="Imap Full Backup detected set all
other following jobs to higher priority"
76
77 def JobRun(self, job):
78 noop = 1
79
80 def NewVolume(self, job):
81 jobid = job.JobId
82 client = job.Client
83 numvol = job.NumVols;
84 print job.CatalogRes
85 job.JobReport = "JobId=%d Client=%s NumVols=%d" %
(jobid, client, numvol)
86 job.JobReport="Python before New Volume set for Job.\n"
87 Vol = "TestA-%d" % numvol
88 job.JobReport = "Exists=%d TestA-%d" %
(job.DoesVolumeExist(Vol), numvol)
89 job.VolumeName="TestA-%d" % numvol
90 job.JobReport="Python after New Volume set for Job.\n"
91 return 1
92 noop = 1
93
94 def VolumePurged(self, job):
95 noop = 1
96
97 # Pass output back to Bacula
98 def write(self, text):
99 self.job.write(text)
100
101 # Open file to be backed up. file is the filename
102 # NOT YET IMPLEMENTED
103 def open(self, file):
104 print "Open %s called" % file
105 self.fd = open('m.py', 'rb')
106 jobid = self.job.JobId
107 print "Open: JobId=%d" % jobid
108
109 # Read file data into Bacula memory buffer (mem)
110 # return length read. 0 => EOF, -1 => error
111 # NOT YET IMPLEMENTED
112 def read(self, mem):
113 print "Read called\n"
114 len = self.fd.readinto(mem)
115 print "Read %s bytes into mem.\n" % len
116 return len
117
118 # Close file
119 # NOT YET IMPLEMENTED
120 def close(self):
121 self.fd.close()
122
but i get this error if i start the next job...
15-Jul 22:07 stf-bac1-dir JobId 304487: Traceback (most recent call last):
15-Jul 22:07 stf-bac1-dir JobId 304487: File
"/etc/bacula/scripts/DirStartUp.py", line 71, in JobInit
15-Jul 22:07 stf-bac1-dir JobId 304487:
15-Jul 22:07 stf-bac1-dir JobId 304487: ValueError
Any pythen experts are there wich can help me to get this script working?
Thanks for help.
JHN
Am 14.07.11 18:54, schrieb Joris Heinrich:
> Hello All,
>
> I m looking for examples about phyton startup scripts... My issue is,
> that i will change the priority of jobs to the starting time.
>
> the script should look for an fullbackup-job and if this job exists
> and run... all other jobs should get an higher priority. If this job
> not running, configured priority should not changed.
>
> Any one have an idea or implemented similar solution?
>
> Thanks for help and
>
> Best Regards
>
>
> JHN
>
>
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