Auto setup some products on opsi-client-agent install

[mirkt]

Hello,

I would like to ask you, is there an easy way to auto setup some products (from specified product group) on client-agent-install?

Thanks in advance

[n.wenselowski]

Hello,

currently not.
Should be not that hard to realise. The implementation depends on the way you deploy the agent to those clients.

With kind regards

Niko

[mirkt]

The thing is: sometimes branch offices add some computers to OPSI themselves (by running service_setup.cmd).. They can install client agent, but do not have access to configed (because it lacks per user group permissions support).. Some OPSI products should be installed on all computers so it would be really nice if adding new client to OPSI could trigger setup for those products.

The main question is, what's the best way of catching event of client's addition?

Thank you in advance

[n.wenselowski]

Hello,

my approach would be the use of a backend extension to customize host_insertObject.
No need to work with external scripts, works regardless of the way clients are added.


With kind regards

Niko

[mirkt]

Thank you for idea!

It works when I edit host_insertObject method in /usr/share/pyshared/OPSI/Backend/File.py but I do not really know how to override it in
(for example) /etc/opsi/backendManager/extend.d/80_custom.conf

Could you please give me a hint?

[n.wenselowski]

Hello,

I'd suggest looking at the other .conf-files how the backend is accessed there (hint: self == BackendManager).
Everything in there is Python code that is loaded onto the BackendManager.


With kind regards

Niko

[mirkt]

I have looked into those other .conf files before writing here, it does not help

The thing is, I can not override host_insertObject method..

my /etc/opsi/backendManager/extend.d/80_custom.conf

Code: Alles auswählen

# -*- coding: utf-8 -*-

def my_host_insertObject(self, host):
    logger.debug("I was here..")

delattr(self, 'host_insertObject')
setattr(self, 'host_insertObject', new.instancemethod(my_host_insertObject, self, self.__class__))
logger.debug(vars(self))

In opsiconfd.log I see logger.debug(vars(self)):
'host_insertObject': <bound method BackendExtender.my_host_insertObject of <OPSI.Backend.BackendManager.BackendExtender instance at 0x9d3fa4c>>

But when I am creating new client, in opsiconfd/127.0.0.1.log I see:
Dispatching method 'host_insertObject' to backends: [u'file', u'opsipxeconfd', u'dhcpd'] (BackendManager.py|406)
and host_insertObject from File.py is executed...

No logs with "I was here.." (I can see „I was here..“ only after opsiconfd restart if I call self.host_insertObject directly from 80_custom.conf..)

Have to dive deeper into OPSI code..

[n.wenselowski]

Hello mirkt,

TBH I'd have to look for myself about the details of it.
Keyword to search for is dispatch.


With kind regards

Niko

[mirkt]

Thanks for all the hints I still don't know how to implement wanted functionality in /etc/opsi/backendManager/extend.d, but I have a working solution which does what I need (on one depot).. If anyone is interested:

1. create /etc/opsi/backends/action.conf

Code: Alles auswählen

# -*- coding: utf-8 -*-

module = 'Action'
config = {
    'autoSetupProductGroup' : u"required"
}

2. Edit /etc/opsi/backendManager/dispatch.conf

Code: Alles auswählen

host_.*            : .., action, ..

(add action)

3. Add file OPSI/Backend/Action.py into your systems python packages path OR add it somewhere (ex. /etc/opsi-helpers/modules) and add that directory to system's PYTHONPATH (ex. export PYTHONPATH=$PYTHONPATH:/etc/opsi-helpers/modules/) env. variables..

Code: Alles auswählen

#!/usr/bin/python
# -*- coding: utf-8 -*-

import socket
import threading
import os

from OPSI.Logger import Logger
from OPSI.Types import forceHostId
from OPSI.Object import *
from OPSI import System
from OPSI.Backend.Backend import *
from OPSI.Backend.JSONRPC import JSONRPCBackend
from OPSI.Util import getfqdn

logger = Logger()

class ActionBackend(ConfigDataBackend):

	def __init__(self, **kwargs):
		self._name = 'action'
		ConfigDataBackend.__init__(self, **kwargs)
		self._depotConnection = None
		self._depotId = forceHostId(getfqdn(conf=OPSI_GLOBAL_CONF))
		self._opsiHostKey = None
		self._autoSetupProductGroup = u'required'
		
		for (option, value) in kwargs.items():
			if option in ('autoSetupProductGroup',):
				self._autoSetupProductGroup = str(value)
		
	def _getDepotConnection(self):
		if self._depotConnection:
			return self._depotConnection
		
		if not self._opsiHostKey:
			depots = self._context.host_getObjects(id=self._depotId)
			if not depots or not depots[0].getOpsiHostKey():
				raise BackendMissingDataError(u"Failed to get opsi host key for depot '{0}'".format(self._depotId))
			self._opsiHostKey = depots[0].getOpsiHostKey()

		try:
			self._depotConnection = JSONRPCBackend(
				address=self._depotId,
				username=self._depotId,
				password=self._opsiHostKey
			)
		except Exception as error:
			raise Exception(u"Failed to connect to depot '%s': %s" % (self._depotId, error))

		return self._depotConnection

	def host_insertObject(self, host):
		if not isinstance(host, OpsiClient):
			return

		productsToInstall = []
		objects = self._getDepotConnection().objectToGroup_getObjects(groupId = self._autoSetupProductGroup, groupType = 'ProductGroup')
		if objects:
			for object in objects:
				self._getDepotConnection().setProductActionRequest(object.objectId, host.id, 'setup')
				productsToInstall.append(object.objectId)
	
			logger.debug(u"Auto install products: %s for new host %s" % (", ".join(productsToInstall), host.id))

4. Add product group named "required") with some products, restart opsiconfd, add new client..
[7] [May 18 13:57:27] Auto install products: adobe.reader, adobe.flash, audacity, eraser, oracle.java, mozilla.firefox for new host test.local.lan (Action.py|97)

There must be a better way than calling backend (with all methods) via JSONRPC on the same host, but I don't really know how

[SisterOfMercy]

Uhhh, this was a bit too much work for me. I took a different route:

Code: Alles auswählen

cd /home/opsiproducts
opsi-package-manager -x /var/lib/opsi/repository/opsi-client-agent_4.0.5.4-5.opsi
opsi-setup --set-rights ./opsi-client-agent/

Then I edit the control file, \\opsi\opsi_workbench\opsi-client-agent\OPSI\control and add something like this:

Code: Alles auswählen

[ProductDependency]
action: setup
requiredProduct: java-runtime
requiredAction: setup
requirementType: after