This demo is meant to illustrate the Yangify + NTC-Rosetta functionality in action.
The Vagrantfile includes 1 IOS, 1 EOS, 1 Junos device.
The workflow is as follows (all using Nornir tasks and inventory):
- Gather Existing Config from Devices
- Gather existing running-config from each device: use Napalm getters (ios/eos) / Netmiko (Junos XML style configuration)
- Write the config of each device to a file in
config/backed_up_from_device/ - Read the config from each device's file and store it in that device's host associated inventory variable called
native_config
- Use NTC-Rosetta to parse each device's configuration into a Vendor Neutral Data Model
- Create a rosetta driver based on the Nornir inventory platform for each device
- Use the rosetta driver to parse the native configuration in the inventory variable
native_configand storing the results into therosetta_parsed_configinventory variable (per device). These results are a vendor neutral data model, based on the underlying Yang models (OpenConfig in this case) and the data taken from the device. The structure / keys are from the Yang Model, the data values are from the device. - Write the Data Models to a YAML and a JSON file under
config/data_models_from_parsing
- Update the Inventory to include the Config Data Models
- For each device in the
hosts.yaml, take the inventory variables ofnative_configandrosetta_parsed_configwhich had been updated in memory at runtime and write the updates to a new hosts file calledhosts_new.yamlto be used in a future run.
- For each device in the
- Make a Change to the Data Model and Generate New Native Config
- Add VLAN 10 and 20 to each device's data model (
rosetta_parsed_config), merging in the changes - Use NTC-Rosetta to generate the new
native_configneeded based on the updated data model (ios, junos, eos) - Write the proposed configuration to a file per device in
config/config_rendered_from_data.
- Add VLAN 10 and 20 to each device's data model (
! IOS
interface GigabitEthernet1
ip address dhcp
negotiation auto
no mop enabled
no mop sysid
!
interface GigabitEthernet2
no ip address
shutdown
negotiation auto
no mop enabled
no mop sysid
!
interface GigabitEthernet3
no ip address
shutdown
negotiation auto
no mop enabled
no mop sysid
interface Ethernet1
!
interface Ethernet2
!
interface Management1
ip address 10.0.2.15/24
<interfaces>
<interface>
<name>ge-0/0/0</name>
<unit>
<name>0</name>
<family>
<inet>
<dhcp>
</dhcp>
</inet>
</family>
</unit>
</interface>
<interface>
<name>ge-0/0/1</name>
<unit>
<name>0</name>
<family>
<inet>
<address>
<name>192.168.33.10/22</name>
</address>
</inet>
</family>
</unit>
</interface>
<interface>
<name>ge-0/0/2</name>
<unit>
<name>0</name>
<family>
<inet>
<dhcp>
</dhcp>
</inet>
</family>
</unit>
</interface>
<interface>
<name>ge-0/0/3</name>
<unit>
<name>0</name>
<family>
<inet>
<address>
<name>192.168.34.10/24</name>
</address>
</inet>
</family>
</unit>
</interface>
<interface>
<name>ge-0/0/4</name>
<unit>
<name>0</name>
<family>
<inet>
<dhcp>
</dhcp>
</inet>
</family>
</unit>
</interface>
<interface>
<name>ge-0/0/5</name>
<unit>
<name>0</name>
<family>
<inet>
<address>
<name>192.168.35.10/24</name>
</address>
</inet>
</family>
</unit>
</interface>
<interface>
<name>ge-0/0/6</name>
<unit>
<name>0</name>
<family>
<inet>
<dhcp>
</dhcp>
</inet>
</family>
</unit>
</interface>
<interface>
<name>ge-0/0/7</name>
<unit>
<name>0</name>
<family>
<inet>
<address>
<name>192.168.36.10/24</name>
</address>
</inet>
</family>
</unit>
</interface>
</interface{
"openconfig-interfaces:interfaces": {
"interface": [
{
"name": "GigabitEthernet1",
"config": {
"name": "GigabitEthernet1",
"type": "iana-if-type:ethernetCsmacd",
"enabled": true
}
},
{
"name": "GigabitEthernet2",
"config": {
"name": "GigabitEthernet2",
"type": "iana-if-type:ethernetCsmacd",
"enabled": false
}
},
{
"name": "GigabitEthernet3",
"config": {
"name": "GigabitEthernet3",
"type": "iana-if-type:ethernetCsmacd",
"enabled": false
}
}
]
},
"openconfig-network-instance:network-instances": {
"network-instance": [
{
"name": "default",
"config": {
"name": "default"
}
}
]
}
}openconfig-interfaces:interfaces:
interface:
- config:
enabled: true
name: GigabitEthernet1
type: iana-if-type:ethernetCsmacd
name: GigabitEthernet1
- config:
enabled: false
name: GigabitEthernet2
type: iana-if-type:ethernetCsmacd
name: GigabitEthernet2
- config:
enabled: false
name: GigabitEthernet3
type: iana-if-type:ethernetCsmacd
name: GigabitEthernet3
openconfig-network-instance:network-instances:
network-instance:
- config:
name: default
name: default{
"openconfig-interfaces:interfaces": {
"interface": [
{
"name": "Ethernet1",
"config": {
"name": "Ethernet1",
"type": "iana-if-type:ethernetCsmacd",
"enabled": true
}
},
{
"name": "Ethernet2",
"config": {
"name": "Ethernet2",
"type": "iana-if-type:ethernetCsmacd",
"enabled": true
}
},
{
"name": "Management1",
"config": {
"name": "Management1",
"enabled": true
}
}
]
},
"openconfig-network-instance:network-instances": {
"network-instance": [
{
"name": "default",
"config": {
"name": "default"
}
}
]
}
}openconfig-interfaces:interfaces:
interface:
- config:
enabled: true
name: Ethernet1
type: iana-if-type:ethernetCsmacd
name: Ethernet1
- config:
enabled: true
name: Ethernet2
type: iana-if-type:ethernetCsmacd
name: Ethernet2
- config:
enabled: true
name: Management1
name: Management1
openconfig-network-instance:network-instances:
network-instance:
- config:
name: default
name: default{
"openconfig-network-instance:network-instances": {
"network-instance": [
{
"name": "default",
"config": {
"name": "default"
}
}
]
}
}openconfig-network-instance:network-instances:
network-instance:
- config:
name: default
name: defaultrosetta_merge_new_config_from_data_model****************************************
* csr1kv ** changed : True *****************************************************
vvvv rosetta_merge_new_config_from_data_model ** changed : False vvvvvvvvvvvvvvv INFO
---- write_file ** changed : True ---------------------------------------------- INFO
--- config/config_rendered_from_data/csr1kv_rosetta_proposed_merge_config.conf
+++ new
@@ -0,0 +1,13 @@
+default interface GigabitEthernet1
+default interface GigabitEthernet2
+default interface GigabitEthernet3
+vlan 10
+ name prod
+ no shutdown
+ exit
+!
+vlan 20
+ name dev
+ shutdown
+ exit
+!
^^^^ END rosetta_merge_new_config_from_data_model ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
* eos_device ** changed : True *************************************************
vvvv rosetta_merge_new_config_from_data_model ** changed : False vvvvvvvvvvvvvvv INFO
---- write_file ** changed : True ---------------------------------------------- INFO
--- config/config_rendered_from_data/eos_device_rosetta_proposed_merge_config.conf
+++ new
@@ -0,0 +1,13 @@
+default interface Ethernet1
+default interface Ethernet2
+default interface Management1
+vlan 10
+ name prod
+ no shutdown
+ exit
+!
+vlan 20
+ name dev
+ shutdown
+ exit
+!
^^^^ END rosetta_merge_new_config_from_data_model ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
* junos_device ** changed : True ***********************************************
vvvv rosetta_merge_new_config_from_data_model ** changed : False vvvvvvvvvvvvvvv INFO
---- write_file ** changed : True ---------------------------------------------- INFO
--- config/config_rendered_from_data/junos_device_rosetta_proposed_merge_config.conf
+++ new
@@ -0,0 +1,14 @@
+<configuration>
+ <vlans>
+ <vlan>
+ <vlan-id>10</vlan-id>
+ <name>prod</name>
+ <disable delete="delete"/>
+ </vlan>
+ <vlan>
+ <vlan-id>20</vlan-id>
+ <name>dev</name>
+ <disable/>
+ </vlan>
+ </vlans>
+</configuration>