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Rendering is changing data into something <variable> ------->  into "value". 

Parsing takes raw data or input and converts it a data structure, or structures that can be analyzed. 


Jinja2 - 101 - Intro to Jinja2 template building

Widget Connector
urlhttps://vimeo.com/120005103

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Code Block
titlejinja2 module
 With Python: ( use extensively by Ansible)

>>> from jinja2 import Template

>>> template = Template('Hello {{ name }}!')

>>> template.render(name='John Doe')

'Hello John Doe!'




Code Block
titlerender jinja2 : option 1
from jinja2 import Template

def render_jinja2():
    with open(r"C:\Users\jkriker\Documents\GitHub\JAUT_Training\Basic-python-with-Juniper\Napalm\config_unit.j2") as file_:
        template = Template(file_.read())
    print(template.render(unit_id='5', vlan_id=5, subnet="0.5"))


render_jinja2(template_name, list_variables)




Code Block
titleoption 2
collapsetrue
import jinja2

def render_j2():
    templateLoader = jinja2.FileSystemLoader(searchpath = r"C:\Users\jkriker\Documents\GitHub\JAUT_Training\Basic-python-with-Juniper\Napalm" )
    templateEnv = jinja2.Environment(loader=templateLoader)
    TEMPLATE_FILE = "config_unit.j2"
    template = templateEnv.get_template(TEMPLATE_FILE)
    outputText = template.render(unit_id=5, vlan_id=5, subnet="0.5")
    print(outputText)





Code Block
titleOption 3
collapsetrue
from jinja2 import Environment, FileSystemLoader

def render_config(config_template):
    file_loader = FileSystemLoader(r"C:\Users\jkriker\Documents\GitHub\JAUT_Training\Basic-python-with-Juniper\Napalm")
    env = Environment(loader=file_loader)
    template = env.get_template("config_unit.j2")
    output = template.render(unit_id="5", vlan_id="5", subnet="0.5")
    print(output)