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ApiListener: merge new config validation and actication functions

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Merge AsyncTryActivateZonesStage and TryActivateZonesStageCallback and
name the result TryActivateZonesStage. The old split was a leftover from
the one being a callback function with no actual meaningful separation.
This commit is contained in:
Julian Brost 2020-11-17 09:31:45 +01:00
parent e4610e7dbd
commit 70c9d49ebc
2 changed files with 36 additions and 49 deletions
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81
lib/remote/apilistener-filesync.cpp
View File

@ -538,7 +538,7 @@ void ApiListener::HandleConfigUpdate(const MessageOrigin::Ptr& origin, const Dic
Log(LogInformation, "ApiListener") Log(LogInformation, "ApiListener")
<< "Received configuration updates (" << count << ") from endpoint '" << fromEndpointName << "Received configuration updates (" << count << ") from endpoint '" << fromEndpointName
<< "' are different to production, triggering validation and reload."; << "' are different to production, triggering validation and reload.";
AsyncTryActivateZonesStage(relativePaths); TryActivateZonesStage(relativePaths);
} else { } else {
Log(LogInformation, "ApiListener") Log(LogInformation, "ApiListener")
<< "Received configuration updates (" << count << ") from endpoint '" << fromEndpointName << "Received configuration updates (" << count << ") from endpoint '" << fromEndpointName
@ -548,17 +548,44 @@ void ApiListener::HandleConfigUpdate(const MessageOrigin::Ptr& origin, const Dic
} }
/** /**
* Callback for stage config validation. * Spawns a new validation process with 'System.ZonesStageVarDir' set to override the config validation zone dirs with
* When validation was successful, the configuration is copied from * our current stage. Then waits for the validation result and if it was successful, the configuration is copied from
* stage to production and a restart is triggered. * stage to production and a restart is triggered. On validation failure, there is no restart and this is logged.
* On failure, there's no restart and this is logged. *
* The caller of this function must hold m_ConfigSyncStageLock.
* *
* @param pr Result of the validation process.
* @param relativePaths Collected paths including the zone name, which are copied from stage to current directories. * @param relativePaths Collected paths including the zone name, which are copied from stage to current directories.
*/ */
void ApiListener::TryActivateZonesStageCallback(const ProcessResult& pr, void ApiListener::TryActivateZonesStage(const std::vector<String>& relativePaths)
const std::vector<String>& relativePaths)
{ {
VERIFY(Application::GetArgC() >= 1);
/* Inherit parent process args. */
Array::Ptr args = new Array({
Application::GetExePath(Application::GetArgV()[0]),
});
for (int i = 1; i < Application::GetArgC(); i++) {
String argV = Application::GetArgV()[i];
if (argV == "-d" || argV == "--daemonize")
continue;
args->Add(argV);
}
args->Add("--validate");
// Set the ZonesStageDir. This creates our own local chroot without any additional automated zone includes.
args->Add("--define");
args->Add("System.ZonesStageVarDir=" + GetApiZonesStageDir());
Process::Ptr process = new Process(Process::PrepareCommand(args));
process->SetTimeout(Application::GetReloadTimeout());
process->Run();
const ProcessResult& pr = process->WaitForResult();
String apiZonesDir = GetApiZonesDir(); String apiZonesDir = GetApiZonesDir();
String apiZonesStageDir = GetApiZonesStageDir(); String apiZonesStageDir = GetApiZonesStageDir();
@ -622,44 +649,6 @@ void ApiListener::TryActivateZonesStageCallback(const ProcessResult& pr,
listener->UpdateLastFailedZonesStageValidation(pr.Output); listener->UpdateLastFailedZonesStageValidation(pr.Output);
} }
/**
* Spawns a new validation process and waits for its output.
* Sets 'System.ZonesStageVarDir' to override the config validation zone dirs with our current stage.
*
* @param relativePaths Required for later file operations in the callback. Provides the zone name plus path in a list.
*/
void ApiListener::AsyncTryActivateZonesStage(const std::vector<String>& relativePaths)
{
VERIFY(Application::GetArgC() >= 1);
/* Inherit parent process args. */
Array::Ptr args = new Array({
Application::GetExePath(Application::GetArgV()[0]),
});
for (int i = 1; i < Application::GetArgC(); i++) {
String argV = Application::GetArgV()[i];
if (argV == "-d" || argV == "--daemonize")
continue;
args->Add(argV);
}
args->Add("--validate");
// Set the ZonesStageDir. This creates our own local chroot without any additional automated zone includes.
args->Add("--define");
args->Add("System.ZonesStageVarDir=" + GetApiZonesStageDir());
Process::Ptr process = new Process(Process::PrepareCommand(args));
process->SetTimeout(Application::GetReloadTimeout());
process->Run();
const ProcessResult& pr = process->WaitForResult();
TryActivateZonesStageCallback(pr, relativePaths);
}
/** /**
* Update the structure from the last failed validation output. * Update the structure from the last failed validation output.
* Uses the current timestamp. * Uses the current timestamp.

4
lib/remote/apilistener.hpp
View File

@ -199,9 +199,7 @@ private:
static ConfigDirInformation LoadConfigDir(const String& dir); static ConfigDirInformation LoadConfigDir(const String& dir);
static void ConfigGlobHandler(ConfigDirInformation& config, const String& path, const String& file); static void ConfigGlobHandler(ConfigDirInformation& config, const String& path, const String& file);
static void TryActivateZonesStageCallback(const ProcessResult& pr, static void TryActivateZonesStage(const std::vector<String>& relativePaths);
const std::vector<String>& relativePaths);
static void AsyncTryActivateZonesStage(const std::vector<String>& relativePaths);
static String GetChecksum(const String& content); static String GetChecksum(const String& content);
static bool CheckConfigChange(const ConfigDirInformation& oldConfig, const ConfigDirInformation& newConfig); static bool CheckConfigChange(const ConfigDirInformation& oldConfig, const ConfigDirInformation& newConfig);