Use API to create configurations from StyleBooks
After you have built your StyleBook, you have to import it to NetScaler Application Delivery Management (ADM) to use it either by using the NetScaler ADM or by using NetScaler ADM APIs. NetScaler ADM validates your StyleBook when you import it, and if the validation is successful, your StyleBook appears on the NetScaler ADM catalog of StyleBooks, ready to be used for creating configurations.
You can now use the StyleBook APIs to create configurations based on this StyleBook. You can use any tool such as the curl command line tool or the Postman chrome browser extension to send HTTP requests to NetScaler ADM.
Example 1
Consider the “lb-vserver” StyleBook you have created in StyleBook to Create a Load Balancing Virtual Server. Use REST API to create a configuration pack from this StyleBook as follows:
POST
https://<MAS-DNS-or-IP>/stylebook/nitro/v1/config/stylebooks/com.example.stylebooks/0.1/lb-vserver/configpacks
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Content-Type: application/json
Accept: application/json
{
"configpack":
{
"parameters": {
"name": "lb1",
"ip": "10.102.117.31"
},
"target_devices":
[
{
"id": "deecee30-f478-4446-9741-a85041903410"
}
]
}
}
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In this HTTP request, the id (for example, “deecee30-f478-4446-9741-a85041903410”) is the instance ID of the NetScaler instance on which the load balancing virtual server lb1 with IP address 10.102.117.31 is created. The instance ID of the NetScaler instance is retrieved from NetScaler ADM.
To obtain the ID of an instance managed by NetScaler ADM, you can use NetScaler ADM APIs. For example, to retrieve the instance ID os a NetScaler instance whose IP address is 192.168.153.160, you can use the following API:
GET https://<MAS-IP>/nitro/v1/config/ns?filter=ip_address:192.168.153.160
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Accept: application/json
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The response contains the ID in the payload:
200
OK
Content-Type: application/json
{
"errorcode": 0,
"message": "Done",
"operation": "get",
"resourceType": "ns",
"username": "nsroot",
"tenant_name": "Owner",
"resourceName": "",
"ns":
[
{
"is_grace": "false",
"hostname": "",
"std_bw_config": "0",
"gateway_deployment": "false",
…"id": "deecee30-f478-4446-9741-a85041903410",
...
}
]
}
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If the configuration pack is successfully created, you receive the following HTTP response:
200 OK
Content-Type: application/json
{
"configpack":
{
"config_id": "1460806080"
}
}
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You have created your first configuration pack that is uniquely identified by using the id 1460806080. You can use this ID to query, update, or delete the configuration.
Example 2
You can use the same StyleBook to create another configuration pack and execute it on the same or different NetScaler instances. In this example, create another configuration and provide a different name and IP address for the virtual server and also specify LEASTCONNECTION as the load balancing method. Deploy this configuration on two NetScaler instances.
The HTTP request is as follows:
POST
https://<MAS-DNS-or-IP>/stylebook/nitro/v1/config/stylebooks/com.example.stylebooks/0.1/lb-vserver/configpacks
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Content-Type: application/json
Accept: application/json
{
"configpack":
{
"parameters":
{
"name": "lb2",
"ip": "10.102.117.32",
"lb-alg": "LEASTCONNECTION"
},
"target_devices"
[
{"id": "deecee30-f478-4446-9741-a85041903410"},
{"id": "debecc60-d589-4557-8632-a74032802412"}
]
}
}
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In this HTTP request, the load balancing virtual server lb2 with IP address 10.102.117.32 is created on the two NetScaler instances represented by the ids “deecee30-f478-4446-9741-a85041903410” and “debecc60-d589-4557-8632-a74032802412”.
On successful creation of the configuration pack, the following HTTP response is received:
200 OK
Content-Type: application/json
{
"configpack":
{
"config_id": "1657696292"
}
}
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This new configuration pack has a different id 165769629. You can update or remove this configuration by using this id.
Example 3
Consider the “basic-lb-config” StyleBook you have created in StyleBook to Create a Basic Load balancing Configuration. Use REST API to create a configuration pack from this StyleBook as follows:
POST
http://<MAS-DNS-or-IP>/stylebook/nitro/v1/config/stylebooks/com.example.stylebooks/0.1/basic-lb-config/configpacks
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Content-Type: application/json
Accept: application/json
{
"configpack":
{
"parameters":
{
"name": "myapp",
"ip": "10.70.122.25",
"svc-servers":
["192.168.100.11","192.168.100.12"],
"svc-port": 8080
},
"target_devices":
[
{
"id": "deecee30-f478-4446-9741-a85041903410"
},
{
"id": "debecc60-d589-4557-8632-a74032802412"
}
]
}
}
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In this HTTP request, the load balancing configuration is executed on two NetScaler instances. You can log on to these NetScaler instances to verify whether a virtual server and a service group with two services bound are created.
Example 4
Consider the composite StyleBook composite-example you created in Create a Composite StyleBook. Use REST API to create a configuration pack from this StyleBook as follows:
POST http://<MAS-DNS-or-IP>/stylebook/nitro/v1/config/stylebooks/com.example.stylebooks/0.1/composite-example/configpacks
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Content-Type: application/json
Accept: application/json
{
"configpack":
{
"parameters": {
"name": "myapp",
"ip": "2.2.2.2",
"svc-servers": ["10.102.29.52","10.102.29.53"]
},
"target_devices":
[
{
"id": "deecee30-f478-4446-9741-a85041903410"
},
{
"id": "debecc60-d589-4557-8632-a74032802412"
}
]
}
}
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In this HTTP request, the configuration is created on two NetScaler instances represented by their IDs. If you log on to the NetScaler instances, you can view the configuration objects created by the “basic-lb-config” StyleBook that was imported into the “composite-example” StyleBook. You can also see a new HTTP monitor called “myapp-mon” that was part of the ”composite-example” StyleBook.
On successful creation of the configuration pack, the following HTTP response is received:
200 OK
Content-Type: application/json{
"configpack": {
"config_id": "4917276817"
}
}
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Updating a configuration
To update this configuration, for example, by adding a new backend server with IP address 10.102.29.54 to the load balancing virtual server myapp, use the API for updating a configuration pack as follows:
PUT http://<MAS-DNS-or-IP>/stylebook/nitro/v1/config/stylebooks/com.example.stylebooks/0.1/composite-example/configpacks/4917276817
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Content-Type: application/json
Accept: application/json
{
"configpack": {
"parameters": {
"name": "myapp",
"ip": "2.2.2.2",
"svc-servers": ["10.102.29.52","10.102.29.53","10.102.29.54"]
},
"target_devices":
[
{
"id": "deecee30-f478-4446-9741-a85041903410"
},
{
"id": "debecc60-d589-4557-8632-a74032802412"
}
]
}
}
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On successful update of the configuration pack, the following HTTP response is received:
200 OK
Content-Type: application/json
{
"configpack": {
"config-id": "4917276817"
}
}
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Deleting a configuration
To delete this configuration (from all the NetScaler instances), you can use the API for deleting a configuration pack as follows:
DELETE http://<MAS-DNS-or-IP>/stylebook/nitro/v1/config/stylebooks/com.example.stylebooks/0.1/composite-example/configpacks/4917276817
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Accept: application/json
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On successful deletion of the configuration pack, the following HTTP response is received:
200 OK
Content-Type: application/json
{
"configpack": {
"config_id": "4917276817"
}
}
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You can log on to the NetScaler instance and verify that all the configuration objects that are part of this configuration pack have been removed.
If you want to remove the configuration from specific NetScaler instances instead of from all, use the update configuration pack operation described above and change the “target_devices” attribute in the JSON payload to remove the specific NetScaler instance IDs.