mirror of https://github.com/Icinga/icinga2.git
280 lines
8.3 KiB
C++
280 lines
8.3 KiB
C++
/******************************************************************************
|
|
* Icinga 2 *
|
|
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
|
|
* *
|
|
* This program is free software; you can redistribute it and/or *
|
|
* modify it under the terms of the GNU General Public License *
|
|
* as published by the Free Software Foundation; either version 2 *
|
|
* of the License, or (at your option) any later version. *
|
|
* *
|
|
* This program is distributed in the hope that it will be useful, *
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
|
* GNU General Public License for more details. *
|
|
* *
|
|
* You should have received a copy of the GNU General Public License *
|
|
* along with this program; if not, write to the Free Software Foundation *
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
|
|
******************************************************************************/
|
|
|
|
#include <i2-icinga.h>
|
|
|
|
|
|
#ifndef _WIN32
|
|
# include "icinga-version.h"
|
|
# define ICINGA_VERSION VERSION ", " GIT_MESSAGE
|
|
|
|
# include <ltdl.h>
|
|
#endif /* _WIN32 */
|
|
|
|
using namespace icinga;
|
|
namespace po = boost::program_options;
|
|
|
|
static po::variables_map g_AppParams;
|
|
static String g_ConfigUnit;
|
|
|
|
#ifndef _WIN32
|
|
static bool g_ReloadConfig = false;
|
|
static Timer::Ptr g_ReloadConfigTimer;
|
|
#endif /* _WIN32 */
|
|
|
|
static bool LoadConfigFiles(bool validateOnly)
|
|
{
|
|
ConfigCompilerContext context;
|
|
|
|
ConfigCompilerContext::SetContext(&context);
|
|
|
|
BOOST_FOREACH(const String& configPath, g_AppParams["config"].as<vector<String> >()) {
|
|
ConfigCompiler::CompileFile(configPath);
|
|
}
|
|
|
|
ConfigCompilerContext::SetContext(NULL);
|
|
|
|
context.Validate();
|
|
|
|
bool hasError = false;
|
|
|
|
BOOST_FOREACH(const ConfigCompilerError& error, context.GetErrors()) {
|
|
if (error.Warning) {
|
|
Logger::Write(LogWarning, "icinga-app", "Config warning: " + error.Message);
|
|
} else {
|
|
hasError = true;
|
|
Logger::Write(LogCritical, "icinga-app", "Config error: " + error.Message);
|
|
}
|
|
}
|
|
|
|
if (hasError)
|
|
return false;
|
|
|
|
/* Logger::Write(LogInformation, "icinga-app", "Validating config items...");
|
|
DynamicType::Ptr type;
|
|
BOOST_FOREACH(tie(tuples::ignore, type), DynamicType::GetTypes()) {
|
|
ConfigType::Ptr ctype = ConfigType::GetByName(type->GetName());
|
|
|
|
if (!ctype) {
|
|
Logger::Write(LogWarning, "icinga-app", "No config type found for type '" + type->GetName() + "'");
|
|
|
|
continue;
|
|
}
|
|
|
|
DynamicObject::Ptr object;
|
|
BOOST_FOREACH(tie(tuples::ignore, object), type->GetObjects()) {
|
|
ctype->ValidateObject(object);
|
|
}
|
|
}*/
|
|
|
|
if (validateOnly)
|
|
return true;
|
|
|
|
context.ActivateItems();
|
|
|
|
if (!g_ConfigUnit.IsEmpty()) {
|
|
/* ActivateItems has taken care of replacing all previous items
|
|
* with new versions - which are automatically in a different
|
|
* compilation unit. This UnloadUnit() call takes care of
|
|
* removing all left-over items from the previous config. */
|
|
ConfigItem::UnloadUnit(g_ConfigUnit);
|
|
}
|
|
|
|
g_ConfigUnit = context.GetUnit();
|
|
|
|
return true;
|
|
}
|
|
|
|
#ifndef _WIN32
|
|
static void ReloadConfigTimerHandler(void)
|
|
{
|
|
if (g_ReloadConfig) {
|
|
Logger::Write(LogInformation, "icinga-app", "Received SIGHUP. Reloading config files.");
|
|
LoadConfigFiles(false);
|
|
g_ReloadConfig = false;
|
|
}
|
|
}
|
|
|
|
static void SigHupHandler(int signum)
|
|
{
|
|
assert(signum == SIGHUP);
|
|
|
|
g_ReloadConfig = true;
|
|
}
|
|
#endif /* _WIN32 */
|
|
|
|
/**
|
|
* Entry point for the Icinga application.
|
|
*
|
|
* @params argc Number of command line arguments.
|
|
* @params argv Command line arguments.
|
|
* @returns The application's exit status.
|
|
*/
|
|
int main(int argc, char **argv)
|
|
{
|
|
#ifndef _WIN32
|
|
LTDL_SET_PRELOADED_SYMBOLS();
|
|
#endif /* _WIN32 */
|
|
|
|
#ifndef _WIN32
|
|
lt_dlinit();
|
|
#endif /* _WIN32 */
|
|
|
|
/* This must be done before calling any other functions
|
|
* in the base library. */
|
|
Application::SetMainThread();
|
|
|
|
/* Install exception handlers to make debugging easier. */
|
|
Application::InstallExceptionHandlers();
|
|
|
|
#ifdef ICINGA_PREFIX
|
|
Application::SetPrefixDir(ICINGA_PREFIX);
|
|
#endif /* ICINGA_PREFIX */
|
|
|
|
#ifdef ICINGA_LOCALSTATEDIR
|
|
Application::SetLocalStateDir(ICINGA_LOCALSTATEDIR);
|
|
#endif /* ICINGA_LOCALSTATEDIR */
|
|
|
|
#ifdef ICINGA_PKGLIBDIR
|
|
Application::SetPkgLibDir(ICINGA_PKGLIBDIR);
|
|
#endif /* ICINGA_PKGLIBDIR */
|
|
|
|
#ifdef ICINGA_PKGDATADIR
|
|
Application::SetPkgDataDir(ICINGA_PKGDATADIR);
|
|
#endif /* ICINGA_PKGDATADIR */
|
|
|
|
po::options_description desc("Supported options");
|
|
desc.add_options()
|
|
("help", "show this help message")
|
|
("version,V", "show version information")
|
|
("library,l", po::value<vector<String> >(), "load a library")
|
|
("include,I", po::value<vector<String> >(), "add include search directory")
|
|
("config,c", po::value<vector<String> >(), "parse a configuration file")
|
|
("validate,v", "exit after validating the configuration")
|
|
("debug,x", "enable debugging")
|
|
("daemonize,d", "daemonize after reading the configuration files")
|
|
;
|
|
|
|
try {
|
|
po::store(po::parse_command_line(argc, argv, desc), g_AppParams);
|
|
} catch (const exception& ex) {
|
|
stringstream msgbuf;
|
|
msgbuf << "Error while parsing command-line options: " << ex.what();
|
|
Logger::Write(LogCritical, "icinga-app", msgbuf.str());
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
po::notify(g_AppParams);
|
|
|
|
if (g_AppParams.count("debug"))
|
|
Application::SetDebugging(true);
|
|
|
|
if (g_AppParams.count("help") || g_AppParams.count("version")) {
|
|
std::cout << "Icinga application loader"
|
|
#ifndef _WIN32
|
|
<< " (version: " << ICINGA_VERSION << ")"
|
|
#endif /* _WIN32 */
|
|
<< std::endl
|
|
<< "Copyright (c) 2012-2013 Icinga Development Team (http://www.icinga.org)" << std::endl
|
|
<< "License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl2.html>" << std::endl
|
|
<< "This is free software: you are free to change and redistribute it." << std::endl
|
|
<< "There is NO WARRANTY, to the extent permitted by law." << std::endl;
|
|
|
|
if (g_AppParams.count("version"))
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
if (g_AppParams.count("help")) {
|
|
std::cout << std::endl
|
|
<< desc << std::endl
|
|
<< "Report bugs at <https://dev.icinga.org/>" << std::endl
|
|
<< "Icinga home page: <http://www.icinga.org/>" << std::endl;
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
Logger::Write(LogInformation, "icinga-app", "Icinga application loader"
|
|
#ifndef _WIN32
|
|
" (version: " ICINGA_VERSION ")"
|
|
#endif /* _WIN32 */
|
|
);
|
|
|
|
Component::AddSearchDir(Application::GetPkgLibDir());
|
|
|
|
Utility::LoadIcingaLibrary("icinga", false);
|
|
|
|
if (g_AppParams.count("library")) {
|
|
BOOST_FOREACH(const String& libraryName, g_AppParams["library"].as<vector<String> >()) {
|
|
Utility::LoadIcingaLibrary(libraryName, false);
|
|
}
|
|
}
|
|
|
|
ConfigCompiler::AddIncludeSearchDir(Application::GetPkgDataDir());
|
|
|
|
if (g_AppParams.count("include")) {
|
|
BOOST_FOREACH(const String& includePath, g_AppParams["include"].as<vector<String> >()) {
|
|
ConfigCompiler::AddIncludeSearchDir(includePath);
|
|
}
|
|
}
|
|
|
|
if (g_AppParams.count("config") == 0) {
|
|
Logger::Write(LogCritical, "icinga-app", "You need to specify at least one config file (using the --config option).");
|
|
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
DynamicObject::BeginTx();
|
|
|
|
bool validateOnly = g_AppParams.count("validate");
|
|
|
|
if (!LoadConfigFiles(validateOnly))
|
|
return EXIT_FAILURE;
|
|
|
|
DynamicObject::FinishTx();
|
|
|
|
if (validateOnly) {
|
|
Logger::Write(LogInformation, "icinga-app", "Terminating as requested by --validate.");
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
Application::Ptr app = Application::GetInstance();
|
|
|
|
if (!app)
|
|
BOOST_THROW_EXCEPTION(runtime_error("Configuration must create an Application object."));
|
|
|
|
if (g_AppParams.count("daemonize")) {
|
|
Logger::Write(LogInformation, "icinga", "Daemonizing.");
|
|
Utility::Daemonize();
|
|
}
|
|
|
|
#ifndef _WIN32
|
|
struct sigaction sa;
|
|
memset(&sa, 0, sizeof(sa));
|
|
sa.sa_handler = &SigHupHandler;
|
|
sigaction(SIGHUP, &sa, NULL);
|
|
|
|
g_ReloadConfigTimer = boost::make_shared<Timer>();
|
|
g_ReloadConfigTimer->SetInterval(1);
|
|
g_ReloadConfigTimer->OnTimerExpired.connect(boost::bind(&ReloadConfigTimerHandler));
|
|
g_ReloadConfigTimer->Start();
|
|
#endif /* _WIN32 */
|
|
|
|
return app->Run();
|
|
}
|
|
|