Phase 2: caddy_manager — Caddyfile generation, health monitor, DNS-01 support

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
2026-05-09 09:04:11 -04:00
parent c1b1686cd9
commit 7d290c12c4
6 changed files with 640 additions and 3 deletions
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"""Tests for CaddyManager — Caddyfile generation per domain mode plus
admin-API reload, health check, and consecutive-failure bookkeeping.
"""
import os
import sys
import unittest
from unittest.mock import MagicMock, patch
import requests
sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', 'api'))
from caddy_manager import CaddyManager # noqa: E402
def _mgr(tmpdir=None, identity=None):
"""Build a CaddyManager backed by a mock config_manager."""
cm = MagicMock()
cm.get_identity.return_value = identity or {}
mgr = CaddyManager(
config_manager=cm,
data_dir=tmpdir or '/tmp/pic-test-data',
config_dir=tmpdir or '/tmp/pic-test-config',
)
return mgr
CALENDAR_ROUTE = (
"handle /calendar* {\n"
" reverse_proxy cell-radicale:5232\n"
"}"
)
FILES_ROUTE = (
"handle /files* {\n"
" reverse_proxy cell-filegator:8080\n"
"}"
)
class TestGenerateCaddyfileLan(unittest.TestCase):
def test_lan_mode_has_auto_https_off_and_no_acme(self):
mgr = _mgr()
identity = {'cell_name': 'mycell', 'domain_mode': 'lan'}
out = mgr.generate_caddyfile(identity, [])
self.assertIn('auto_https off', out)
# No ACME anywhere
self.assertNotIn('acme_ca', out)
self.assertNotIn('acme_email', out)
self.assertNotIn('dns pic_ngo', out)
self.assertNotIn('dns cloudflare', out)
# Internal-CA TLS pair
self.assertIn('tls /etc/caddy/internal/cert.pem '
'/etc/caddy/internal/key.pem', out)
# Cell hostname plus virtual IP listener
self.assertIn('http://mycell.cell', out)
self.assertIn('http://172.20.0.2:80', out)
class TestGenerateCaddyfilePicNgo(unittest.TestCase):
def test_pic_ngo_has_dns_plugin_and_wildcard(self):
mgr = _mgr()
identity = {'cell_name': 'alpha', 'domain_mode': 'pic_ngo'}
out = mgr.generate_caddyfile(identity, [])
self.assertIn('dns pic_ngo', out)
self.assertIn('*.alpha.pic.ngo', out)
self.assertIn('alpha.pic.ngo', out)
self.assertIn('{$PIC_NGO_DDNS_TOKEN}', out)
self.assertIn('{$PIC_NGO_DDNS_API}', out)
self.assertIn('email admin@alpha.pic.ngo', out)
# ACME staging hook
self.assertIn('acme_ca {$ACME_CA_URL}', out)
class TestGenerateCaddyfileCloudflare(unittest.TestCase):
def test_cloudflare_has_dns_cloudflare(self):
mgr = _mgr()
identity = {
'cell_name': 'beta',
'domain_mode': 'cloudflare',
'custom_domain': 'example.com',
}
out = mgr.generate_caddyfile(identity, [])
self.assertIn('dns cloudflare {$CF_API_TOKEN}', out)
self.assertIn('*.example.com', out)
self.assertIn('email {$ACME_EMAIL}', out)
self.assertIn('acme_ca {$ACME_CA_URL}', out)
class TestGenerateCaddyfileDuckDns(unittest.TestCase):
def test_duckdns_has_dns_duckdns(self):
mgr = _mgr()
identity = {'cell_name': 'gamma', 'domain_mode': 'duckdns'}
out = mgr.generate_caddyfile(identity, [])
self.assertIn('dns duckdns {$DUCKDNS_TOKEN}', out)
self.assertIn('*.gamma.duckdns.org', out)
class TestGenerateCaddyfileHttp01(unittest.TestCase):
def test_http01_no_tls_block_and_per_service_blocks(self):
mgr = _mgr()
identity = {
'cell_name': 'delta',
'domain_mode': 'http01',
'custom_domain': 'delta.noip.me',
}
services = [
{'name': 'calendar', 'caddy_route':
'reverse_proxy cell-radicale:5232'},
{'name': 'files', 'caddy_route':
'reverse_proxy cell-filegator:8080'},
]
out = mgr.generate_caddyfile(identity, services)
# No wildcard, no DNS-01 plugins.
self.assertNotIn('*.delta', out)
self.assertNotIn('dns ', out)
# No explicit tls block (no internal CA, no plugin) — the host block
# itself is left empty so Caddy uses HTTP-01 by default.
self.assertNotIn('tls {', out)
# Per-service blocks
self.assertIn('calendar.delta.noip.me {', out)
self.assertIn('files.delta.noip.me {', out)
self.assertIn('reverse_proxy cell-radicale:5232', out)
self.assertIn('reverse_proxy cell-filegator:8080', out)
class TestServiceRoutesIncluded(unittest.TestCase):
def test_installed_service_route_appears_in_output(self):
mgr = _mgr()
identity = {'cell_name': 'eps', 'domain_mode': 'lan'}
services = [
{'name': 'calendar', 'caddy_route': CALENDAR_ROUTE},
{'name': 'files', 'caddy_route': FILES_ROUTE},
]
out = mgr.generate_caddyfile(identity, services)
self.assertIn('handle /calendar*', out)
self.assertIn('reverse_proxy cell-radicale:5232', out)
self.assertIn('handle /files*', out)
self.assertIn('reverse_proxy cell-filegator:8080', out)
# Core routes still emitted
self.assertIn('reverse_proxy cell-api:3000', out)
self.assertIn('reverse_proxy cell-webui:80', out)
class TestReloadCaddyAdminAPI(unittest.TestCase):
def test_reload_calls_admin_api_load_endpoint(self):
mgr = _mgr()
# Point at a tmp Caddyfile so we can read it back during reload.
import tempfile
tmp = tempfile.NamedTemporaryFile('w', delete=False, suffix='.caddyfile')
tmp.write(":80 { reverse_proxy cell-webui:80 }\n")
tmp.close()
mgr.caddyfile_path = tmp.name
with patch('caddy_manager.requests.post') as mock_post:
mock_post.return_value = MagicMock(status_code=200, text='ok')
ok = mgr.reload_caddy()
self.assertTrue(ok)
mock_post.assert_called_once()
args, kwargs = mock_post.call_args
# First positional arg is the URL
self.assertEqual(args[0], 'http://cell-caddy:2019/load')
self.assertEqual(kwargs['headers']['Content-Type'], 'text/caddyfile')
self.assertIn('cell-webui:80', kwargs['data'])
os.unlink(tmp.name)
class TestHealthCheck(unittest.TestCase):
def test_returns_true_on_200(self):
mgr = _mgr()
with patch('caddy_manager.requests.get') as mock_get:
mock_get.return_value = MagicMock(status_code=200)
self.assertTrue(mgr.check_caddy_health())
mock_get.assert_called_once()
# URL must be the admin API root
self.assertIn('cell-caddy:2019', mock_get.call_args[0][0])
def test_returns_false_on_connection_error(self):
mgr = _mgr()
with patch('caddy_manager.requests.get',
side_effect=requests.ConnectionError('refused')):
self.assertFalse(mgr.check_caddy_health())
def test_returns_false_on_non_200(self):
mgr = _mgr()
with patch('caddy_manager.requests.get') as mock_get:
mock_get.return_value = MagicMock(status_code=500)
self.assertFalse(mgr.check_caddy_health())
class TestFailureCounter(unittest.TestCase):
def test_increments_and_resets(self):
mgr = _mgr()
self.assertEqual(mgr.get_health_failure_count(), 0)
self.assertEqual(mgr.increment_health_failure(), 1)
self.assertEqual(mgr.increment_health_failure(), 2)
self.assertEqual(mgr.increment_health_failure(), 3)
self.assertEqual(mgr.get_health_failure_count(), 3)
mgr.reset_health_failures()
self.assertEqual(mgr.get_health_failure_count(), 0)
class TestCertStatus(unittest.TestCase):
def test_returns_default_when_no_tls_in_identity(self):
mgr = _mgr(identity={'cell_name': 'x', 'domain_mode': 'lan'})
out = mgr.get_cert_status()
self.assertEqual(out['status'], 'unknown')
self.assertIsNone(out['expiry'])
self.assertIsNone(out['days_remaining'])
def test_returns_tls_block_when_present(self):
mgr = _mgr(identity={
'cell_name': 'x',
'domain_mode': 'pic_ngo',
'tls': {
'status': 'valid',
'expiry': '2026-08-01T00:00:00Z',
'days_remaining': 84,
},
})
out = mgr.get_cert_status()
self.assertEqual(out['status'], 'valid')
self.assertEqual(out['expiry'], '2026-08-01T00:00:00Z')
self.assertEqual(out['days_remaining'], 84)
if __name__ == '__main__':
unittest.main()