uncloud-mravi/uncloud_net/tasks.py
2020-12-26 14:42:53 +01:00

84 lines
2.2 KiB
Python

from celery import shared_task
from .models import *
from uncloud.models import UncloudTask
import os
import subprocess
import logging
import uuid
log = logging.getLogger(__name__)
@shared_task
def whereami():
print(os.uname())
return os.uname()
@shared_task
def configure_wireguard_server_on_host(wg_name, config):
"""
- Create wireguard config (DB query -> string)
- Submit config to cdist worker
- Change config locally on worker / commit / shared
"""
# Write config
fname = f"/etc/wireguard/{{wg_name}}.conf"
with open(fname, "w") as fd:
fd.write(config)
# Ensure the device exists
subprocess.run(f"ip link show {{wg_name}} || sudo ip link add {{wg_name}} type wireguard",
shell=True, check=True)
# Ensure the config is correct
subprocess.run(f"sudo wg setconf {{wg_name}} {{fname}}",
shell=True, check=True)
def configure_wireguard_server_via_cdist(wireguardvpnpool):
"""
- Create wireguard config (DB query -> string)
- Submit config to cdist worker
- Change config locally on worker / commit / shared
"""
config = wireguardvpnpool.wireguard_config
server = wireguardvpnpool.vpn_server_hostname
log.info(f"Configuring VPN server {server} (async)")
task_id = uuid.UUID(cdist_configure_wireguard_server.apply_async((config, server)).id)
UncloudTask.objects.create(task_id=task_id)
@shared_task
def cdist_configure_wireguard_server(config, server):
"""
Create config and configure server.
To be executed on the cdist worker.
"""
dirname= "/home/app/.cdist/type/__ungleich_wireguard/files/"
fname = os.path.join(dirname,server)
log.info(f"Configuring VPN server {server} (on cdist host)")
with open(fname, "w") as fd:
fd.write(config)
log.debug("git committing wireguard changes")
subprocess.run(f"cd {dirname} && git pull && git add {server} && git commit -m 'Updating config for {server}' && git push",
shell=True, check=True)
log.debug(f"Configuring VPN server {server} with cdist")
subprocess.run(f"cdist config {server}", shell=True, check=True)
# FIXME:
# ensure logs are on the server
# ensure exit codes are known
return True