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jandiorio / ansible-dnac-modules

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Ansible Collection - wwt.ansible_dnac

Ansible Modules for DNA Center

These modules provide declarative and idempotent access to configure the design elements of Cisco's DNA Center.

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Content

Included Modules

The documentation can be viewed using ansible-doc and will provide all of the details including examples of usage.

Inventory Plugin

This collection also includes an inventory plugin enabling the use of DNA Center as the source of truth for inventory.

  1. Install the collection

    ansible-galaxy collection install wwt.ansible_dnac

  2. Configure the plugin by creating a file named dna_center.yml. This is the plugin configuration file and I usually save it in a directory named inventory.

    plugin: dna_center
host: <your_dna_center>
validate_certs: <true or false>
use_dnac_mgmt_int: <true or false>
username: <username>
password: <vaulted password>

  3. Enable the plugin by editing ansible.cfg

    [inventory]
enable_plugins =  wwt.ansible_dnac.dna_center

  4. Validate it works

    ansible-inventory -i <path_to_dna_center.yaml> --graph --ask-vault-pass

    Example output:

    @all:
  |--@barcelona:
  |--@demo_environment:
  |  |--@data_center_1:
  |  |  |--DC1-Border-INET.campus.local
  |  |  |--DC1-Border-MPLS.campus.local
  |  |  |--csr-atc-integration.campus.local
  |  |  |--dc1-nexus-7702.campus.local
  |  |--@data_center_2:
  |--@fira:
  |--@tech_campus:
  |  |--@bldg_56:
  |  |  |--@dnac:
  |  |  |  |--dc1-9300-a.campus.local
  |  |  |  |--dc1-9300-b.campus.local
  |  |  |  |--dc1-9500-a.campus.local
  |  |  |  |--prod-9800wlc-01.campus.local
  |--@the_cloud:
  |  |--@aws:
  |  |  |--FNH-HOSP-0BMT-WLC1A.us-east-2.compute.internal
  |--@ungrouped:
/development/wwt/ansible_dnac #

Geo Lookup Plugin

This collection includes a lookup plugin which performs a resolution of the location provided to return the latitude and longitude. When adding buildings in DNAC, an address is required as well as the lat/long of that address. In the UI this resolution is performed for you. This plugin provides that functionality in this collection.

Below is an example task using the geo plugin.

# DNA Center Create Buildings
- name: create buildings
  dnac_site:
    host: "{{ inventory_hostname }}"
    port: '443'
    username: "{{ username }}"
    password: "{{ password }}"
    state: "{{ desired_state }}"
    name: "{{ item.name }}"
    site_type: "{{ item.site_type }}"
    parent_name: "{{ item.parent_name }}"
    address: "{{ item.building_address }}"
    latitude: "{{ lookup('wwt.ansible_dnac.geo',item.building_address).latitude }}"
    longitude: "{{ lookup('wwt.ansible_dnac.geo',item.building_address).longitude }}"
  loop: "{{ sites }}"
  when:  item.site_type == 'building'

NOTE: The geo lookup plugin is completely optional. Alternatively, you could manually resolve the lat/long and include them in the task. See the dnac_site module documentation for more information.

Requirements

Ansible version 2.9 or later is required for installation using Ansible Collections.

This solution requires the installation of the following python modules:

Installation

These Ansible modules have now been packaged into an Ansible Collection.

STEP 1. Install the ansible_dnac collection

ansible-galaxy collection install wwt.ansible_dnac

STEP 2. Validation that the modules have been installed properly can be performed by executing:

ansible-doc wwt.ansible_dnac.dnac_dhcp

If the results show the module documentation your installation was successful.

vagrant@ubuntu-xenial:~/ansible-dnac-modules$ ansible-doc dnac_dhcp
> DNAC_DHCP    (/home/vagrant/ansible-dnac-modules/dnac_dhcp.py)

        Add or delete DHCP Server(s) in the Cisco DNA Center Design Workflow.  The DHCP Severs can be different values \ at different
        levels in the group hierarchy.

OPTIONS (= is mandatory):

= dhcp_servers
        IP address of the DHCP Server to manipulate.

        type: list

Examples

The examples below set the common-settings in the DNA Center Design workflow. Additional examples are included in the module documentation. ansible-doc *module_name*

name: test my new module
connection: local
hosts: localhost
gather_facts: false
no_log: true

collections:
  - wwt.ansible_dnac

tasks:

- name: set the banner
  dnac_banner:
    host: 10.253.176.237
    port: 443
    username: admin
    password: *****
    banner_message: "created by a new ansible module for banners"
- name: set the ntp server
  dnac_ntp:
    host: 10.253.176.237
    port: 443
    username: admin
    password: *****
    ntp_server: 192.168.200.1
- name: set the dhcp server
  dnac_dhcp:
    host: 10.253.176.237
    port: 443
    username: admin
    password: *****
    dhcp_server: 192.168.200.1
- name: set the dns server and domain name
  dnac_dns:
    host: 10.253.176.237
    port: 443
    username: admin
    password: *****
    primary_dns_server: 192.168.200.1
    secondary_dns_server: 192.168.200.2
    domain_name: wwtatc.local
- name: set the syslog server
  dnac_syslog:
    host: 10.253.176.237
    port: 443
    username: admin
    password: *****
    syslog_server: 172.31.3.237
- name: set the snmp server
  dnac_snmp:
    host: 10.253.176.237
    port: 443
    username: admin
    password:  *****
    snmp_server: 172.31.3.237
- name: set the netflow
  dnac_netflow:
    host: 10.253.176.237
    port: 443
    username: admin
    password: *****
    netflow_collector: 172.31.3.237
    netflow_port: 6007
- name: set the timezone
  dnac_timezone:
    host: 10.253.176.237
    port: 443
    username: admin
    password: *****
    timezone: America/Chicago

Author

Jeff Andiorio - World Wide Technology