symbolic-users Mailing List for Symbolic (Page 3)

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Following a discussion we had on instant messaging, here is a proof of concept to get the args of methods of the class in the func modules:

#!/usr/bin/python
import sys
sys.path.append('/usr/lib/python/site-packages/func/minion/modules/')
import inspect

modname='mount'
methodname='umount'

the_mod=__import__(modname) 

name,data=inspect.getmembers(the_mod, inspect.isclass)[0]
the_class=modname+'.'+name

c=getattr(the_mod, name)

print "Module: "+modname
print "Class Name: "+the_class
print "Method: "+methodname
print "Args: ",
print [ arg for arg in inspect.getargspec(eval('c.'+methodname))[0] if arg != 'self' ]

Output:
Module: mount
Class Name: mount.MountModule
Method: umount
Args:  ['dir', 'killall', 'force', 'lazy']

I think we can't rely on register_method_args(self)

I can be put in a func module... or not.

Let me know if you think this can be interesting.

Louis

-----Original Message-----
From: Marco Mornati [mailto:mmo...@by...] 
Sent: Saturday, November 01, 2008 11:48 AM
To: External COILLIOT Louis (CAMPUS)
Cc: sym...@li...
Subject: Re: [Symbolic-users] FW: Operation Running

Hi Louis,

I'm making some tests with module that requires more than one parameter
(like your test module). It seems there's a problem in func-trasmit
parsing the parameter passed...

I make some tests during this w-e... I hope I could find the solution
and push it to you! ;)

Bye a have a nice w-e
Marco

On Thu, 2008-10-30 at 16:56 +0100, External COILLIOT Louis (CAMPUS)
wrote:
> Hello, I tried with the simpler func module below. Same behaviour:
> 
> 2008-10-30 17:02:26,942 - INFO - Exception value: test() takes exactly 4 arguments (2 given)
> 2008-10-30 17:02:26,948 - INFO - Exception Info:
>   File "/usr/lib/python2.4/site-packages/func/minion/server.py", line 136, in __call__
>     rc = self.__method(*args)
> 
> And still no error information getting back to the WebUI.
> 
> The module is:
> 
> # test_symb.py
> #!/usr/bin/env python
> 
> import os
> 
> try:
>     from func_module import FuncModule
> except:
>     class FuncModule:
>         pass
> 
> 
> class testSymb(FuncModule):
>     version = "0.0.1"
>     api_version = "0.0.1"
>     description = "This is a test for the Symbolic WebUI frontend"
> 
>     def test(self,param1,param2,param3):
>         """Test the multi param passing"""
>         filename='/tmp/'+param1+'-'+param2+'-'+param3
>         try:
>                 outfile=open(filename,'w')
>                 outfile.close()
>         except Exception, e: return str(e)
>         return(filename)
> 
> 
> It works fine in func:
> func '*' call test_symb test pim pam poum
> {'nladev03.neptune.dkcorp.net': '/tmp/pim-pam-poum',
>  'nladev04.neptune.dkcorp.net': '/tmp/pim-pam-poum'}
> 
> Louis
> 
> 
> 
> -----Original Message-----
> From: External COILLIOT Louis (CAMPUS) 
> Sent: Thursday, October 30, 2008 11:10 AM
> To: sym...@li...
> Subject: RE: [Symbolic-users] FW: Operation Running
> 
> 1° database export
> 
> For the database export, this is what i thought.
> 
> But I can't see the definition for the symbolic operation I created:
> 
> grep augeas /var/lib/symbolic/db/*
> 
> /var/lib/symbolic/db/symbolicDb.log:INSERT INTO OPERATION_LOG VALUES(5,1,'2008-10-29 16:02:31.501000000',NULL,2,5,'nladev03.neptune.dkcorp.net-changeconf_augeas-chgParam-1225292553.724438',FALSE,NULL,NULL,1,2,'')
> /var/lib/symbolic/db/symbolicDb.log:INSERT INTO OPERATION_LOG VALUES(6,1,'2008-10-29 17:50:12.182000000',NULL,2,5,'nladev03.neptune.dkcorp.net-changeconf_augeas-chgParam-1225299014.0967519',FALSE,NULL,NULL,1,2,'')
> /var/lib/symbolic/db/symbolicDb.log:INSERT INTO OPERATION_LOG VALUES(5,2,'2008-10-29 16:02:31.501000000','Func Async Process Lost!',2,5,'nladev03.neptune.dkcorp.net-changeconf_augeas-chgParam-1225292553.724438',FALSE,'WARN: Func Server was probably restart after command ran on client.',NULL,3,2,'')
> /var/lib/symbolic/db/symbolicDb.log:INSERT INTO OPERATION_LOG VALUES(8,1,'2008-10-29 17:53:54.177000000',NULL,2,5,'nladev03.neptune.dkcorp.net-changeconf_augeas-chgParam-1225299238.6513391',FALSE,NULL,NULL,1,2,'')
> /var/lib/symbolic/db/symbolicDb.script:INSERT INTO MODULE VALUES(3,0,'changeconf_augeas','Default Description','','chgParam,module_description,module_version,get_method_args,module_api_version,list_methods','changeconf_augeas')
> 
> Where are Operations stored ?
> 
> 2° my module
> 
> Here is the module (POC version, I'm still working on it):
> #changeconf_augeas.py
> 
> try:
>     from func_module import FuncModule
> except:
>     class FuncModule:
>         pass
> 
> 
> class chgConf(FuncModule):
>     version = "0.0.1"
>     api_version = "0.0.1"
>     description = "Change parameters in plain text configuration files, with the help of Augeas."
> 
>     def chgParam(self,fileName,param,pvalue):
>         """Change a value for a config. parameter in a plain text config. file
> with the help of Augeas, a configuration API (cf http://augeas.net) 
> """
>         try:
>             from augeas import augeas
>             aug=augeas()
>         except Exception, e: return str(e)
> 
>         path='/files/'+fileName
> 
>         try:
>             getTest=aug.get(path+"/"+param)
>         except Exception, e: return str(e)
> 
>         if not getTest:
>             message="""Failed. Possible reasons:
> - the config file does not exist
> - the config parameter does not exist in the config file
> - Augeas does not handle the configuration format as expected"""
>             return message
> 
>         try:
>             aug.set(path+"/"+param,pvalue)
>         except Exception, e: return str(e)
>         try:
>             aug.save()
>         except Exception, e: return str(e)
> 
>         try:
>             getTest=aug.get(path+"/"+param)
>         except Exception, e: return str(e)
> 
>         return [fileName,param,getTest]
> 
> 
> In parallel I will make some new check with a very simple test module using methods with more than 1 parameter.
> 
> 
> Louis
> 
> 
> 
> -----Original Message-----
> From: Marco Mornati [mailto:mmo...@by...] 
> Sent: Thursday, October 30, 2008 9:46 AM
> To: External COILLIOT Louis (CAMPUS)
> Cc: sym...@li...
> Subject: Re: [Symbolic-users] FW: Operation Running
> 
> On Wed, 2008-10-29 at 17:57 +0100, External COILLIOT Louis (CAMPUS)
> wrote:
> 
> > I checked the func logs, I have this:
> > 
> > 
> > 
> > 2008-10-29 17:10:00,995 - DEBUG - cn: testintegr3.neptune.dkcorp.net-CA-KEY sub_hash: 1837371380
> > 2008-10-29 17:10:00,997 - DEBUG - acls {u'testintegr3.neptune.dkcorp.net-CA-KEY-1837371380': ['*']}
> > 2008-10-29 17:10:00,997 - DEBUG - hostkey testintegr3.neptune.dkcorp.net-CA-KEY-1837371380
> > 2008-10-29 17:10:01,026 - DEBUG - (X) -------------------------------------------
> > 2008-10-29 17:10:01,029 - INFO - Exception occured: exceptions.TypeError
> > 2008-10-29 17:10:01,029 - INFO - Exception value: chgParam() takes exactly 4 arguments (2 given)
> > 2008-10-29 17:10:01,030 - INFO - Exception Info:
> >   File "/usr/lib/python2.4/site-packages/func/minion/server.py", line 136, in __call__
> >     rc = self.__method(*args)
> > 
> > 
> > So:
> > - the error doesn't get back to Symbolic
> > - there is a problem passing args
> > Did you try with more than one or two ?
> > The separator between the args in the form is really ' ' ?
> > With 'raw' func it works fine.
> > I'd like to give you an export of the piece of hsql database that defines the operation, but I don't know how.
> > 
> Yes we have tested with more than one parameter... but maybe there is a
> specific problem calling that one. We are making a call using
> "func-trasmit" (so not CLI) and all "instructions" are passed through a
> yaml/json serialization.
> 
> Can I have your module code to make some specific test... so I can see
> what are working wrong in that situation?
> 
> To "export" the hsqldb you just need to copy the db files you can find
> in symbolic folder (if I remember well /var/lib/symbolic/db).
> > 
> 
> > > I don't understand your real question
> > > (...)
> > > when you are creating new operation inside Symbolic, it proposes the list of required parameter for selected method
> > That's a part of the answer I seeked for.
> > 
> > > you need to add the name of server to "default" operation parameters.
> > What I mean is that I try to do that with a list of parameters, like:
> > func '*' call changeconf_augeas chgParam /etc/ssh/sshd_config PermitRootLogin yes
> > 
> > Param list -> /etc/ssh/sshd_config PermitRootLogin yes
> > 
> > 
> > 
> > 3) Propose in a form (on another page?) and not "add parameter" or writing something in a list? Yes... could be better... In this moment I couldn't see Symbolic because I'm out of office. Tomorrow morning I take care to your suggestion and I'll write you an email with proposal to change this part.
> > If you have any suggestion about this... let me know.
> > 
> > "add parameter" is fine but it should provide the args of the methods as parameter names (with a select form ?), I think.
> > 
> > Bye
> > Marco
> > 
> > ------------
> > Dott. Ing. Mornati Marco
> > Byte-Code s.r.l
> > via Antonio Cechov, 1
> > San Giuliano Milanese (MI)
> > E-Mail: mmo...@by...
> > Mob. +39 3388246643
> > Int. +39 02 45074942
> > Tel. +39 02 9840047
> > Fax. +39 02 98247475
> > 
> > ----- Original Message -----
> > From: "External COILLIOT Louis (CAMPUS)" <ext...@ox...>
> > To: mmo...@by..., "stephane.dobbelaere" <ste...@th...>
> > Cc: "luca foppiano" <lu...@fo...>, "franck.lemaire" <fra...@th...>
> > Sent: Wednesday, October 29, 2008 4:49:01 PM GMT +01:00 Amsterdam / Berlin / Bern / Rome / Stockholm / Vienna
> > Subject: Operation Running
> > 
> > Hello Marco,
> > 
> > I have one problem and 2 questions.
> > 
> > 
> > 1° Problem
> > 
> > I try to get this operation working with Symbolic:
> > 
> > func '*' call changeconf_augeas chgParam /etc/ssh/sshd_config PermitRootLogin yes
> > 
> > It works fine with func console mode:
> > {'nladev03.neptune.dkcorp.net': ['/etc/ssh/sshd_config',
> >                                  'PermitRootLogin',
> >                                  'yes'],
> >  'nladev04.neptune.dkcorp.net': ['/etc/ssh/sshd_config',
> >                                  'PermitRootLogin',
> >                                  'yes']}
> > 
> > 
> > You can see the operation from Symbolic in attachment.
> > 
> > But it gets stuck with Symbolic in 'Operation running'. See the log:
> > 
> > 16:02:33.294 DEBUG Running OpLog ID 5 - Operation PermitRootlogin-No on nladev03.neptune.dkcorp.net (10.151.2.212)
> > 16:02:33.294 DEBUG Running OpLog ID 5 - Operation PermitRootlogin-No on nladev03.neptune.dkcorp.net (10.151.2.212)
> > --->1 ["/etc/ssh/sshd_config PermitRootLogin no"]
> > 16:02:33.324 DEBUG Calling JSon Values: {"module":"changeconf_augeas","nforks":1,"method":"chgParam","parameters":"/etc/ssh/sshd_config PermitRootLogin no ","async":true,"clients":"nladev03.neptune.dkcorp.net"}
> > 16:02:33.325 DEBUG Command to execute: ["func-transmit", "-j"]
> > 16:02:36.523 DEBUG Func raw result: ["processid":"nladev03.neptune.dkcorp.net-changeconf_augeas-chgParam-1225292553.724438"]
> > 16:02:36.523 DEBUG Func raw result: ["processid":"nladev03.neptune.dkcorp.net-changeconf_augeas-chgParam-1225292553.724438"]
> > 16:02:38.155 DEBUG Getting status for pid nladev03.neptune.dkcorp.net-changeconf_augeas-chgParam-1225292553.724438
> > 16:02:38.157 DEBUG Calling JSon Values: {"nforks":1,"method":"job_status","parameters":"nladev03.neptune.dkcorp.net-changeconf_augeas-chgParam-1225292553.724438","async":0,"clients":"*"}
> > 16:02:38.158 DEBUG Command to execute: ["func-transmit", "-j"]
> > 16:02:38.671 DEBUG Process Response: [3,{}]
> > 16:02:38.686 DEBUG Func raw-result: ["status":3, "result":[:]]
> > 16:02:38.686 DEBUG Func raw-result: ["status":3, "result":[:]]
> > 16:02:38.688 DEBUG Job Partial!
> > 16:02:38.688 DEBUG Job Partial!
> > 16:02:43.160 DEBUG Getting status for pid nladev03.neptune.dkcorp.net-changeconf_augeas-chgParam-1225292553.724438
> > 16:02:43.160 DEBUG Calling JSon Values: {"nforks":1,"method":"job_status","parameters":"nladev03.neptune.dkcorp.net-changeconf_augeas-chgParam-1225292553.724438","async":0,"clients":"*"}
> > 16:02:43.160 DEBUG Command to execute: ["func-transmit", "-j"]
> > 16:02:43.547 DEBUG Process Response: [3,{}]
> > 16:02:43.549 DEBUG Func raw-result: ["status":3, "result":[:]]
> > 16:02:43.549 DEBUG Func raw-result: ["status":3, "result":[:]]
> > 16:02:43.550 DEBUG Job Partial!
> > 16:02:43.550 DEBUG Job Partial!
> > 
> > 
> > 2° question
> > 
> > I got a method chgParam that takes more than on param
> >   def chgParam(self,fileName,param,pvalue):
> >      (...)
> > 
> > I can't find examples with more than on param.
> > For example, to check a service you need only the service name:
> >     def status(self, service_name):
> >       (...)
> > 
> > In Symbolic 'Service status' operation you use:
> > User Parameter: 'Service Name' Type 'Text' Desc '...'
> > 
> > How does 'Service Name' match with the attribute 'service_name' of the method 'status' ?
> > 
> > What if there are more than one parameter ?
> > Is there a match between the order of the User Parameter list and the order of the attributes in the method ? 
> > 
> > 3° question
> > 
> > Don't you think it could be more clear to propose the methods attributes list in the form for an operation ? 
> > 
> > Let me know.
> > 
> > Louis
> > 
> > -------------------------------------------------------------------------
> > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> > Build the coolest Linux based applications with Moblin SDK & win great prizes
> > Grand prize is a trip for two to an Open Source event anywhere in the world
> > http://moblin-contest.org/redirect.php?banner_id=100&url=/
> > _______________________________________________
> > Symbolic-users mailing list
> > Sym...@li...
> > https://lists.sourceforge.net/lists/listinfo/symbolic-users
> -- 
> Dott. Ing. Mornati Marco
> Byte-Code s.r.l
> via Antonio Cechov, 1
> San Giuliano Milanese (MI)
> E-Mail: mmo...@by...
> 
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> Build the coolest Linux based applications with Moblin SDK & win great prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> _______________________________________________
> Symbolic-users mailing list
> Sym...@li...
> https://lists.sourceforge.net/lists/listinfo/symbolic-users
-- 
Dott. Ing. Mornati Marco
Byte-Code s.r.l
via Antonio Cechov, 1
San Giuliano Milanese (MI)
E-Mail: mmo...@by...

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