Mastering Python Networking

The Jinja2 template

Let's also modify the playbook accordingly. In chapter5_8.yml, we will make the following changes:

1. Change the source file to the nxos.j2.
2. Change the destination file to be a variable.
3. Provide the variable values that we will substitute in the template that is indicated under the tasks section.

    ---    - name: Template Looping      hosts: localhost      vars:        nexus_devices: {          "nx-osv-1": {"hostname": "nx-osv-1", "username": "cisco",     "password": "cisco"}        }      tasks:        - name: create router configuration files          template:            src=./nxos.j2            dest=./{{ item.key }}.conf          with_dict: "{{ nexus_devices }}"

After running the playbook, you will find the destination file called nx-osv-1.conf with the values filled in and ready to be used:

$ cat nx-osv-1.conf ...