orange-openSource--aws-terr.../automation/jinja2/render.py
Fabien Gaubert 5cf2ac0217 Init
2023-06-21 14:41:43 +02:00

68 lines
1.9 KiB
Python
Executable file

#!/usr/bin/env python3
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
"""
Software Name : AWSTerraformStarterKit
SPDX-FileCopyrightText: Copyright (c) 2023 Orange Business
SPDX-License-Identifier: BSD-3-Clause
This software is distributed under the BSD License;
see the LICENSE file for more details.
Author: AWS Practice Team <awspractice.core@orange.com>
"""
import os
import sys
import jinja2
import yaml
class Render:
TEMPLATES_DIR = os.environ.get('TEMPLATES_DIR') if os.environ.get('TEMPLATES_DIR') is not None else "/templates"
def __init__(self, template_name=None, variables_path=None):
self.template_name = template_name
self.variables_path = variables_path
self.env = jinja2.Environment(
loader=jinja2.FileSystemLoader(self.TEMPLATES_DIR),
extensions=['jinja2.ext.loopcontrols'],
autoescape=True,
lstrip_blocks=True,
newline_sequence="\n",
trim_blocks=True,
keep_trailing_newline=True
)
def yaml_filter(value):
return yaml.dump(value, Dumper=yaml.RoundTripDumper, indent=4)
def rend_template(self):
with open(self.variables_path, closefd=True) as f:
data = yaml.full_load(f)
self.env.filters['yaml'] = self.yaml_filter
self.env.globals["environ"] = lambda key: os.environ.get(key)
try:
rendered = self.env.get_template(self.template_name).render(data)
except Exception as e:
raise e
return rendered
def main():
min_args = 3
if len(sys.argv) < min_args:
raise Exception(
"Error: Expecting at least {} args. Got {}, args={}".format(min_args, len(sys.argv), sys.argv))
sys.stdout.write(Render(sys.argv[1], sys.argv[2]).rend_template())
if __name__ == '__main__':
main()