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app.py
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app.py
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#!/usr/bin/env python3
import os
import base64
import configparser
from typing import Optional
from aws_cdk import core
from once.once_stack import OnceStack, CustomDomainStack
ONCE_CONFIG_FILE = os.getenv("ONCE_CONFIG_FILE", os.path.expanduser("~/.once"))
SECRET_KEY = os.getenv("SECRET_KEY")
CUSTOM_DOMAIN = os.getenv("CUSTOM_DOMAIN")
HOSTED_ZONE_NAME = os.getenv("HOSTED_ZONE_NAME")
HOSTED_ZONE_ID = os.getenv("HOSTED_ZONE_ID")
def generate_random_key() -> str:
return base64.b64encode(os.urandom(128)).decode("utf-8")
def generate_config(
secret_key: Optional[str] = None,
custom_domain: str = None,
hosted_zone_name: str = None,
hosted_zone_id: str = None,
) -> configparser.ConfigParser:
config = configparser.ConfigParser()
config["once"] = {
"secret_key": secret_key or generate_random_key(),
}
config["deployment"] = {}
if all([custom_domain, hosted_zone_name, hosted_zone_id]):
config["once"]["base_url"] = f"https://{custom_domain}"
config["deployment"] = {
"custom_domain": custom_domain,
"hosted_zone_name": hosted_zone_name,
"hosted_zone_id": hosted_zone_id,
}
return config
def get_config(config_gile: str = ONCE_CONFIG_FILE) -> configparser.ConfigParser:
if not os.path.exists(ONCE_CONFIG_FILE):
print(f"Generating configuration file at {ONCE_CONFIG_FILE}")
with open(ONCE_CONFIG_FILE, "w") as config_file:
config = generate_config(
secret_key=SECRET_KEY,
custom_domain=CUSTOM_DOMAIN,
hosted_zone_name=HOSTED_ZONE_NAME,
hosted_zone_id=HOSTED_ZONE_ID,
)
config.write(config_file)
else:
config = configparser.ConfigParser()
config.read(ONCE_CONFIG_FILE)
return config
def main():
config = get_config()
kwargs = {"secret_key": config["once"]["secret_key"]}
if config.has_section("deployment"):
kwargs.update(config["deployment"])
app = core.App()
once = OnceStack(app, "once", **kwargs)
app.synth()
if __name__ == "__main__":
main()