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# Templating Engine
This engine does the templating for The Gathering.
The flask server sits behind varnish and waits for incomming GET requests with a template name and optional variables.
```varnish
backend templating {
.host = "::1";
.port = "8081";
}
....
if (req.url ~ "^/api/templates") {
set req.url = regsub(req.url,"^/api/templates","");
set req.backend_hint = templating;
}
```
## Requirements
* Python3.6
* jinja2
* requests
* flask
* netaddr
## Settings
```
python3 templating.py
usage: templating.py [-t TEMPLATES [TEMPLATES ...]] [-h HOST] [-p PORT] [-d]
[-s SERVER] [-x TIMEOUT]
Process templates for gondul.
optional arguments:
-t TEMPLATES [TEMPLATES ...], --templates TEMPLATES [TEMPLATES ...]
location of templates
-h HOST, --host HOST host address
-p PORT, --port PORT host port
-d, --debug enable debug mode
-s SERVER, --server SERVER
gondul server address
-x TIMEOUT, --timeout TIMEOUT
gondul server timeout
```
## How to test locally
You need a directory with all the jinja2 templates. I just assume you git cloned the entire gondul repo.
An example using [test.conf](../web/templates/test.conf)
```bash
python3 templating.py --host ::1 --port 8081 --templates ../web/templates --server http://tech:rules@<gondul>:80
```
```bash
curl -s "http://[::1]:8081/test.conf?switch=e1-1" | jq .
{
"distro_name": "core-dev",
"placement": {
"height": 20,
"width": 250,
"x": "830",
"y": "620"
},
"tags": []
}
```
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