cloudflared-mirror/component-tests/test_reconnect.py

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#!/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_ready, 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()
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:
wait_tunnel_ready(expect_connections=expect_connections)
else:
check_tunnel_not_ready()
sleep(self.default_reconnect_secs + 10)
wait_tunnel_ready()
send_requests(config.get_url(), 1)