| """ |
| Test child proxy serving stale content when parents are exhausted |
| """ |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| |
| Test.testName = "proxy_serve_stale" |
| Test.ContinueOnFail = True |
| |
| |
| class ProxyServeStaleTest: |
| """Verify that stale content is served when the parent is down.""" |
| |
| single_transaction_replay = "replay/proxy_serve_stale.replay.yaml" |
| ts_parent_hostname = "localhost:82" |
| |
| def __init__(self): |
| """Initialize the test.""" |
| self._configure_server() |
| self._configure_ts() |
| |
| def _configure_server(self): |
| self.server = Test.MakeVerifierServerProcess( |
| "server", |
| self.single_transaction_replay) |
| |
| def _configure_ts(self): |
| self.ts_child = Test.MakeATSProcess("ts_child") |
| # Config child proxy to route to parent proxy |
| self.ts_child.Disk.records_config.update({ |
| 'proxy.config.http.parent_proxy.fail_threshold': 2, |
| 'proxy.config.http.parent_proxy.total_connect_attempts': 1, |
| 'proxy.config.http.cache.max_stale_age': 10, |
| 'proxy.config.http.parent_proxy.self_detect': 0, |
| 'proxy.config.diags.debug.enabled': 1, |
| 'proxy.config.diags.debug.tags': 'cache|http|dns|hostdb|parent_proxy', |
| }) |
| self.ts_child.Disk.parent_config.AddLine( |
| f'dest_domain=. parent="{self.ts_parent_hostname}" round_robin=consistent_hash go_direct=false' |
| ) |
| self.ts_child.Disk.remap_config.AddLine( |
| f'map / http://localhost:{self.server.Variables.http_port}' |
| ) |
| |
| def run(self): |
| """Run the test cases.""" |
| |
| tr = Test.AddTestRun() |
| tr.AddVerifierClientProcess( |
| 'client', |
| self.single_transaction_replay, |
| http_ports=[self.ts_child.Variables.port]) |
| tr.Processes.Default.ReturnCode = 0 |
| tr.StillRunningAfter = self.ts_child |
| tr.Processes.Default.StartBefore(self.server) |
| tr.Processes.Default.StartBefore(self.ts_child) |
| |
| |
| ProxyServeStaleTest().run() |
