gistfile1.txt

         data = {}
         data = '{ "clusters": [ { "nodes": [ '
 
         for i in range(0, int(self.node_number)):
            #determine node_number increment on the number of nodes 
            if self.node_type == 'app':
                node_ip = int(self.app_nodes) + i
                guest_name = self.node_type + '-' + str(node_ip)
            if self.node_type == 'infra':
                node_ip = int(self.infra_nodes) + i
                guest_name = self.node_type + '-' + str(node_ip)
            if self.node_type == 'storage' and self.container_storage == 'crs':
                node_ip = int(self.app_nodes) + i
                guest_name = 'crs-' + str(node_ip)
            if self.node_type == 'storage' and self.container_storage == 'cns':
                node_ip = int(self.app_nodes) + i
                guest_name = 'app-storage-' + str(node_ip)
            if self.ocp_hostname_prefix:
                guest_name = self.ocp_hostname_prefix + guest_name
            d['host_inventory'][guest_name] = {}
            d['host_inventory'][guest_name]['guestname'] = guest_name
            d['host_inventory'][guest_name]['ip4addr'] = unusedip4addr[0]
            d['host_inventory'][guest_name]['tag'] = self.node_type
            data = data + '{ "node" : { "hostnames": {"manage": [ "%s" ],"storage": [ "%s" ]},"zone": %s },"devices": [ "/dev/sdd" ]}' % (  unusedip4addr[0],  unusedip4addr[0], i )
            del unusedip4addr[0]
            if unusedip4addr:
                data = data + ","
        data = data + "]}]}"
        
                with open(self.inventory_file, 'w') as outfile:
            json.dump(d, outfile)

        if 'storage' in node_type:
        # create the topology file
            with open('topology.json', 'w') as topfile:
                json.dump(ndata, topfile)

            for line in fileinput.input('topology.json', inplace=True):
                if line.endswith('"'):
                    line = line[:-1]
                if line.startswith('"'):
                    line = line[1:]
                line = line.replace("\\", "")
                print line
            print "Gluster topology file created topology.json"

        print 'Inventory file created: %s' % self.inventory_file