Files
notifications-admin/scripts/generate_manifest.py
Alexey Bezhan ab55bf49b2 Add generate_manifest.py script and update deployment tasks
Brings in the new environment variables deployment process introduced
in alphagov/notifications-api#1543.

The script is a copy of the API one and make steps are modified to
fit with the existing admin deployment targets.
2018-01-09 14:14:47 +00:00

64 lines
1.6 KiB
Python
Executable File

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import sys
import json
import yaml
def merge_dicts(a, b):
if not (isinstance(a, dict) and isinstance(b, dict)):
raise ValueError("Error merging variables: '{}' and '{}'".format(
type(a).__name__, type(b).__name__
))
result = a.copy()
for key, val in b.items():
if isinstance(result.get(key), dict):
result[key] = merge_dicts(a[key], b[key])
else:
result[key] = val
return result
def load_manifest(manifest_file):
with open(manifest_file) as f:
manifest = yaml.load(f)
if 'inherit' in manifest:
inherit_file = os.path.join(os.path.dirname(manifest_file), manifest.pop('inherit'))
manifest = merge_dicts(load_manifest(inherit_file), manifest)
return manifest
def load_variables(vars_files):
variables = {}
for vars_file in vars_files:
with open(vars_file) as f:
variables = merge_dicts(variables, yaml.load(f))
return {
k.upper(): json.dumps(v) if isinstance(v, (dict, list)) else v
for k, v in variables.items()
}
def paas_manifest(manifest_file, *vars_files):
manifest = load_manifest(manifest_file)
variables = load_variables(vars_files)
for key in manifest.get('env', {}):
if key in variables:
manifest['env'][key] = variables[key]
return yaml.dump(manifest, default_flow_style=False, allow_unicode=True)
if __name__ == "__main__":
print('---') # noqa
print(paas_manifest(*sys.argv[1:])) # noqa