cloudflared-mirror/component-tests/test_reconnect.py

54 lines
2.4 KiB
Python

#!/usr/bin/env python
import copy
from retrying import retry
from time import sleep
from util import start_cloudflared, wait_tunnel_ready, check_tunnel_not_connected, send_requests
class TestReconnect():
default_ha_conns = 4
default_reconnect_secs = 5
extra_config = {
"stdin-control": True,
}
def test_named_reconnect(self, tmp_path, component_tests_config):
config = component_tests_config(self.extra_config)
with start_cloudflared(tmp_path, config, new_process=True, allow_input=True) as cloudflared:
# Repeat the test multiple times because some issues only occur after multiple reconnects
self.assert_reconnect(config, cloudflared, 5)
def test_classic_reconnect(self, tmp_path, component_tests_config):
extra_config = copy.copy(self.extra_config)
extra_config["hello-world"] = True
config = component_tests_config(
additional_config=extra_config, named_tunnel=False)
with start_cloudflared(tmp_path, config, cfd_args=[], new_process=True, allow_input=True) as cloudflared:
self.assert_reconnect(config, cloudflared, 1)
def send_reconnect(self, cloudflared, secs):
# Although it is recommended to use the Popen.communicate method, we cannot
# use it because it blocks on reading stdout and stderr until EOF is reached
cloudflared.stdin.write(f"reconnect {secs}s\n".encode())
cloudflared.stdin.flush()
def assert_reconnect(self, config, cloudflared, repeat):
wait_tunnel_ready(tunnel_url=config.get_url())
for _ in range(repeat):
for i in range(self.default_ha_conns):
self.send_reconnect(cloudflared, self.default_reconnect_secs)
expect_connections = self.default_ha_conns-i-1
if expect_connections > 0:
# Don't check if tunnel returns 200 here because there is a race condition between wait_tunnel_ready
# retrying to get 200 response and reconnecting
wait_tunnel_ready(
require_min_connections=expect_connections)
else:
check_tunnel_not_connected()
sleep(self.default_reconnect_secs + 10)
wait_tunnel_ready(tunnel_url=config.get_url(),
require_min_connections=self.default_ha_conns)