uncloud/uncloud_net/tasks.py

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from celery import shared_task
from .models import *
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from uncloud.models import UncloudTask
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import os
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import subprocess
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import logging
import uuid
log = logging.getLogger(__name__)
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@shared_task
def whereami():
print(os.uname())
return os.uname()
def configure_wireguard_server(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
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log.info(f"Configuring VPN server {server} (async)")
task_id = uuid.UUID(cdist_configure_wireguard_server.apply_async((config, server)).id)
UncloudTasks.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 workers.
"""
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dirname= "/home/app/.cdist/type/__ungleich_wireguard/files/"
fname = os.path.join(dirname,server)
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log.info(f"Configuring VPN server {server} (on cdist host)")
with open(fname, "w") as fd:
fd.write(config)
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log.debug("git committing wireguard changes")
subprocess.run(f"cd /aa{dirname} && git pull && git add {server} && git commit -m 'Updating config for ${server}' && git push",
shell=True, check=True)
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log.debug(f"Configuring VPN server {server} with cdist")
subprocess.run(f"cdist config {server}", shell=True, check=True)
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# FIXME:
# ensure logs are on the server
# ensure exit codes are known
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return "All good"