diff --git a/models/tosca/provisionOnt.go b/models/tosca/provisionOnt.go
new file mode 100644
index 0000000..c83cc4d
--- /dev/null
+++ b/models/tosca/provisionOnt.go
@@ -0,0 +1,103 @@
+/*
+   Copyright 2017 the original author or authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+package tosca
+
+import (
+	"fmt"
+	"net"
+	"strings"
+
+	yaml "gopkg.in/yaml.v2"
+)
+
+var ontTemplate = `tosca_definitions_version: tosca_simple_yaml_1_0
+imports:
+  - custom_types/attworkflowdriverwhitelistentry.yaml
+  - custom_types/attworkflowdriverservice.yaml
+description: Create an entry in the whitelist
+topology_template:
+  node_templates:
+    service#att:
+      type: tosca.nodes.AttWorkflowDriverService
+      properties:
+        name: att-workflow-driver
+        must-exist: true
+    ont:
+      type: tosca.nodes.AttWorkflowDriverWhiteListEntry
+      properties:
+        serial_number: ALPHe3d1cf57
+        pon_port_id: 536870912
+        device_id: of:000000000a4001ce
+      requirements:
+        - owner:
+            node: service#att
+            relationship: tosca.relationships.BelongsToOne`
+
+type OntProvision struct {
+	ToscaDefinitionsVersion string   `yaml:"tosca_definitions_version"`
+	Imports                 []string `yaml:"imports"`
+	Description             string   `yaml:"description"`
+	TopologyTemplate        struct {
+		NodeTemplates struct {
+			ServiceATT struct {
+				Type       string `yaml:"type"`
+				Properties struct {
+					Name      string `yaml:"name"`
+					MustExist bool   `yaml:"must-exist"`
+				} `yaml:"properties"`
+			} `yaml:"service#att"`
+			Ont struct {
+				DeviceType string `yaml:"type"`
+				Properties struct {
+					SerialNumber string `yaml:"serial_number"`
+					PonPortID    int    `yaml:"pon_port_id"`
+					DeviceID     string `yaml:"device_id"`
+				} `yaml:"properties"`
+				Requirements []struct {
+					Owner struct {
+						Node         string `yaml:"node"`
+						Relationship string `yaml:"relationship"`
+					} `yaml:"owner"`
+				} `yaml:"requirements"`
+			} `yaml:"ont"`
+		} `yaml:"node_templates"`
+	} `yaml:"topology_template"`
+}
+
+func NewOntProvision(serialNumber string, oltIP net.IP, ponPortNumber int) OntProvision {
+	offset := 1 << 29
+	o := OntProvision{}
+	err := yaml.Unmarshal([]byte(ontTemplate), &o)
+	if err != nil {
+	}
+	props := &o.TopologyTemplate.NodeTemplates.Ont.Properties
+	props.PonPortID = offset + ponPortNumber
+	props.SerialNumber = serialNumber
+	ipNum := []byte(oltIP[12:16]) //only handling ipv4
+	ofID := fmt.Sprintf("of:00000000%0x", ipNum)
+	props.DeviceID = ofID
+	fmt.Printf("%v\n", o)
+	return o
+
+}
+func (ont *OntProvision) ToYaml() (string, error) {
+	b, err := yaml.Marshal(ont)
+	ret := string(b)
+	// Damn dirty hack but what are you going to do????
+	serialNumber := ont.TopologyTemplate.NodeTemplates.Ont.Properties.SerialNumber
+	ret = strings.Replace(ret, "ont", serialNumber, -1)
+	return ret, err
+}