Example #1
0
    def add_slivers(self, hostnames, attributes=[], sliver_urn=None, append=False):
        # add slice name to network tag
        network_tags = self.xml.xpath('//network')
        if network_tags:
            network_tag = network_tags[0]
            network_tag.set('slice', urn_to_hrn(sliver_urn)[0])

        # add slivers
        sliver = {'name':sliver_urn,
                  'pl_tags': attributes}
        for hostname in hostnames:
            if sliver_urn:
                sliver['name'] = sliver_urn
            node_elems = self.get_nodes({'component_id': '*%s*' % hostname})
            if not node_elems:
                continue
            node_elem = node_elems[0]
            NITOSv1Sliver.add_slivers(node_elem.element, sliver)

        # remove all nodes without slivers
        if not append:
            for node_elem in self.get_nodes():
                if not node_elem['slivers']:
                    parent = node_elem.element.getparent()
                    parent.remove(node_elem.element)
Example #2
0
 def get_sliver_attributes(self, component_id, network=None):
     nodes = self.get_nodes({'component_id': '*%s*' % component_id})
     attribs = []
     if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
         node = nodes[0]
         slivers = NITOSv1Sliver.get_slivers(node.element)
         if slivers is not None and isinstance(slivers, list) and len(slivers) > 0:
             sliver = slivers[0]
             attribs = NITOSv1Sliver.get_sliver_attributes(sliver.element)
     return attribs
Example #3
0
 def add_sliver_attribute(self, component_id, name, value, network=None):
     nodes = self.get_nodes({'component_id': '*%s*' % component_id})
     if nodes is not None and isinstance(nodes, list) and len(nodes) > 0:
         node = nodes[0]
         slivers = NITOSv1Sliver.get_slivers(node)
         if slivers:
             sliver = slivers[0]
             NITOSv1Sliver.add_sliver_attribute(sliver, name, value)
     else:
         # should this be an assert / raise an exception?
         logger.error("WARNING: failed to find component_id %s" % component_id)
Example #4
0
 def get_default_sliver_attributes(self, network=None):
     if network:
         defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
     else:
         defaults = self.xml.xpath("//sliver_defaults")
     if not defaults: return []
     return NITOSv1Sliver.get_sliver_attributes(defaults[0])
Example #5
0
 def add_default_sliver_attribute(self, name, value, network=None):
     if network:
         defaults = self.xml.xpath("//network[@name='%s']/sliver_defaults" % network)
     else:
         defaults = self.xml.xpath("//sliver_defaults")
     if not defaults:
         if network:
             network_tag = self.xml.xpath("//network[@name='%s']" % network)
         else:
             network_tag = self.xml.xpath("//network")    
         if isinstance(network_tag, list):
             network_tag = network_tag[0]
         defaults = network_tag.add_element('sliver_defaults')
     elif isinstance(defaults, list):
         defaults = defaults[0]
     NITOSv1Sliver.add_sliver_attribute(defaults, name, value)
Example #6
0
 def remove_slivers(xml, hostnames):
     for hostname in hostnames:
         nodes = NITOSv1Node.get_nodes(xml, {'component_id': '*%s*' % hostname})
         for node in nodes:
             slivers = NITOSv1Sliver.get_slivers(node.element)
             for sliver in slivers:
                 node.element.remove(sliver.element)
Example #7
0
 def add_slivers(xml, slivers):
     component_ids = []
     for sliver in slivers:
         filter = {}
         if isinstance(sliver, str):
             filter['component_id'] = '*%s*' % sliver
             sliver = {}
         elif 'component_id' in sliver and sliver['component_id']:
             filter['component_id'] = '*%s*' % sliver['component_id']
         if not filter:
             continue 
         nodes = NITOSv1Node.get_nodes(xml, filter)
         if not nodes:
             continue
         node = nodes[0]
         NITOSv1Sliver.add_slivers(node, sliver)
Example #8
0
    def get_node_objs(node_elems):
        nodes = []    
        for node_elem in node_elems:
            node = Node(node_elem.attrib, node_elem)
            if 'site_id' in node_elem.attrib:
                node['authority_id'] = node_elem.attrib['site_id']
            # get location
            location_elems = node_elem.xpath('./default:location | ./location')
            locations = [loc_elem.get_instance(Location) for loc_elem in location_elems]  
            if len(locations) > 0:
                node['location'] = locations[0]
            # get bwlimit
            bwlimit_elems = node_elem.xpath('./default:bw_limit | ./bw_limit')
            bwlimits = [bwlimit_elem.get_instance(BWlimit) for bwlimit_elem in bwlimit_elems]
            if len(bwlimits) > 0:
                node['bwlimit'] = bwlimits[0]
            # get interfaces
            iface_elems = node_elem.xpath('./default:interface | ./interface')
            ifaces = [iface_elem.get_instance(Interface) for iface_elem in iface_elems]
            node['interfaces'] = ifaces
            # get services
            node['services'] = PGv2Services.get_services(node_elem) 
            # get slivers
            node['slivers'] = NITOSv1Sliver.get_slivers(node_elem)
            # get tags
            node['tags'] =  NITOSv1PLTag.get_pl_tags(node_elem, ignore=Node.fields+["hardware_type"])
            # get hardware types
            hardware_type_elems = node_elem.xpath('./default:hardware_type | ./hardware_type')
            node['hardware_types'] = [hw_type.get_instance(HardwareType) for hw_type in hardware_type_elems]

            # temporary... play nice with old slice manager rspec
            if not node['component_name']:
                hostname_elem = node_elem.find("hostname")
                if hostname_elem != None:
                    node['component_name'] = hostname_elem.text

            nodes.append(node)
        return nodes            
Example #9
0
    def add_nodes(xml, nodes):
        network_elems = xml.xpath('//network')
        if len(network_elems) > 0:
            network_elem = network_elems[0]
        elif len(nodes) > 0 and nodes[0].get('component_manager_id'):
            network_urn = nodes[0]['component_manager_id']
            network_elem = xml.add_element('network', name = Xrn(network_urn).get_hrn())
        else:
            network_elem = xml

        # needs to be improuved to retreive the gateway addr dynamically.
        gateway_addr = 'nitlab.inf.uth.gr'

        node_elems = []       
        for node in nodes:
            node_fields = ['component_manager_id', 'component_id', 'boot_state']
            node_elem = network_elem.add_instance('node', node, node_fields)
            node_elems.append(node_elem)

            # determine network hrn
            network_hrn = None 
            if 'component_manager_id' in node and node['component_manager_id']:
                network_hrn = Xrn(node['component_manager_id']).get_hrn()

            # set component_name attribute and  hostname element
            if 'component_id' in node and node['component_id']:
                component_name = Xrn(xrn=node['component_id']).get_leaf()
                node_elem.set('component_name', component_name)
                hostname_elem = node_elem.add_element('hostname')
                hostname_elem.set_text(component_name)

            # set site id
            if 'authority_id' in node and node['authority_id']:
                node_elem.set('site_id', node['authority_id'])

            # add locaiton
            location = node.get('location')
            if location:
                node_elem.add_instance('location', location, Location.fields)

            # add 3D Position of the node
            position_3d = node.get('position_3d')
            if position_3d:
                node_elem.add_instance('position_3d', position_3d, Position3D.fields)

            # all nitos nodes are exculsive
            exclusive_elem = node_elem.add_element('exclusive')
            exclusive_elem.set_text('TRUE')
 
            # In order to access nitos nodes, one need to pass through the nitos gateway
            # here we advertise Nitos access gateway address
            gateway_elem = node_elem.add_element('gateway')
            gateway_elem.set_text(gateway_addr)

            # add granularity of the reservation system
            granularity = node.get('granularity')['grain']
            if granularity:
                #node_elem.add_instance('granularity', granularity, granularity.fields)
                granularity_elem = node_elem.add_element('granularity')
                granularity_elem.set_text(str(granularity))
            # add hardware type
            #hardware_type = node.get('hardware_type')
            #if hardware_type:
            #    node_elem.add_instance('hardware_type', hardware_type)
            hardware_type_elem = node_elem.add_element('hardware_type')
            hardware_type_elem.set_text(node.get('hardware_type'))


            if isinstance(node.get('interfaces'), list):
                for interface in node.get('interfaces', []):
                    node_elem.add_instance('interface', interface, ['component_id', 'client_id', 'ipv4']) 
            
            #if 'bw_unallocated' in node and node['bw_unallocated']:
            #    bw_unallocated = etree.SubElement(node_elem, 'bw_unallocated', units='kbps').text = str(int(node['bw_unallocated'])/1000)

            PGv2Services.add_services(node_elem, node.get('services', []))
            tags = node.get('tags', [])
            if tags:
                for tag in tags:
                    tag_elem = node_elem.add_element(tag['tagname'])
                    tag_elem.set_text(tag['value'])
            NITOSv1Sliver.add_slivers(node_elem, node.get('slivers', []))