mirror of https://github.com/Icinga/icinga2.git
882 lines
27 KiB
C++
882 lines
27 KiB
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
|
|
|
|
#include "remote/apilistener.hpp"
|
|
#include "remote/apifunction.hpp"
|
|
#include "config/configcompiler.hpp"
|
|
#include "base/tlsutility.hpp"
|
|
#include "base/json.hpp"
|
|
#include "base/configtype.hpp"
|
|
#include "base/logger.hpp"
|
|
#include "base/convert.hpp"
|
|
#include "base/application.hpp"
|
|
#include "base/exception.hpp"
|
|
#include "base/shared.hpp"
|
|
#include "base/utility.hpp"
|
|
#include <fstream>
|
|
#include <iomanip>
|
|
#include <thread>
|
|
|
|
using namespace icinga;
|
|
|
|
REGISTER_APIFUNCTION(Update, config, &ApiListener::ConfigUpdateHandler);
|
|
|
|
std::mutex ApiListener::m_ConfigSyncStageLock;
|
|
|
|
/**
|
|
* Entrypoint for updating all authoritative configs from /etc/zones.d, packages, etc.
|
|
* into var/lib/icinga2/api/zones
|
|
*/
|
|
void ApiListener::SyncLocalZoneDirs() const
|
|
{
|
|
for (const Zone::Ptr& zone : ConfigType::GetObjectsByType<Zone>()) {
|
|
try {
|
|
SyncLocalZoneDir(zone);
|
|
} catch (const std::exception&) {
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sync a zone directory where we have an authoritative copy (zones.d, packages, etc.)
|
|
*
|
|
* This function collects the registered zone config dirs from
|
|
* the config compiler and reads the file content into the config
|
|
* information structure.
|
|
*
|
|
* Returns early when there are no updates.
|
|
*
|
|
* @param zone Pointer to the zone object being synced.
|
|
*/
|
|
void ApiListener::SyncLocalZoneDir(const Zone::Ptr& zone) const
|
|
{
|
|
if (!zone)
|
|
return;
|
|
|
|
ConfigDirInformation newConfigInfo;
|
|
newConfigInfo.UpdateV1 = new Dictionary();
|
|
newConfigInfo.UpdateV2 = new Dictionary();
|
|
newConfigInfo.Checksums = new Dictionary();
|
|
|
|
String zoneName = zone->GetName();
|
|
|
|
// Load registered zone paths, e.g. '_etc', '_api' and user packages.
|
|
for (const ZoneFragment& zf : ConfigCompiler::GetZoneDirs(zoneName)) {
|
|
ConfigDirInformation newConfigPart = LoadConfigDir(zf.Path);
|
|
|
|
// Config files '*.conf'.
|
|
{
|
|
ObjectLock olock(newConfigPart.UpdateV1);
|
|
for (const Dictionary::Pair& kv : newConfigPart.UpdateV1) {
|
|
String path = "/" + zf.Tag + kv.first;
|
|
|
|
newConfigInfo.UpdateV1->Set(path, kv.second);
|
|
newConfigInfo.Checksums->Set(path, GetChecksum(kv.second));
|
|
}
|
|
}
|
|
|
|
// Meta files.
|
|
{
|
|
ObjectLock olock(newConfigPart.UpdateV2);
|
|
for (const Dictionary::Pair& kv : newConfigPart.UpdateV2) {
|
|
String path = "/" + zf.Tag + kv.first;
|
|
|
|
newConfigInfo.UpdateV2->Set(path, kv.second);
|
|
newConfigInfo.Checksums->Set(path, GetChecksum(kv.second));
|
|
}
|
|
}
|
|
}
|
|
|
|
size_t sumUpdates = newConfigInfo.UpdateV1->GetLength() + newConfigInfo.UpdateV2->GetLength();
|
|
|
|
// Return early if there are no updates.
|
|
if (sumUpdates == 0)
|
|
return;
|
|
|
|
String productionZonesDir = GetApiZonesDir() + zoneName;
|
|
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Copying " << sumUpdates << " zone configuration files for zone '" << zoneName << "' to '" << productionZonesDir << "'.";
|
|
|
|
// Purge files to allow deletion via zones.d.
|
|
if (Utility::PathExists(productionZonesDir))
|
|
Utility::RemoveDirRecursive(productionZonesDir);
|
|
|
|
Utility::MkDirP(productionZonesDir, 0700);
|
|
|
|
// Copy content and add additional meta data.
|
|
size_t numBytes = 0;
|
|
|
|
/* Note: We cannot simply copy directories here.
|
|
*
|
|
* Zone directories are registered from everywhere and we already
|
|
* have read their content into memory with LoadConfigDir().
|
|
*/
|
|
Dictionary::Ptr newConfig = MergeConfigUpdate(newConfigInfo);
|
|
|
|
{
|
|
ObjectLock olock(newConfig);
|
|
|
|
for (const Dictionary::Pair& kv : newConfig) {
|
|
String dst = productionZonesDir + "/" + kv.first;
|
|
|
|
Utility::MkDirP(Utility::DirName(dst), 0755);
|
|
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Updating configuration file: " << dst;
|
|
|
|
String content = kv.second;
|
|
|
|
std::ofstream fp(dst.CStr(), std::ofstream::out | std::ostream::binary | std::ostream::trunc);
|
|
|
|
fp << content;
|
|
fp.close();
|
|
|
|
numBytes += content.GetLength();
|
|
}
|
|
}
|
|
|
|
// Additional metadata.
|
|
String tsPath = productionZonesDir + "/.timestamp";
|
|
|
|
if (!Utility::PathExists(tsPath)) {
|
|
std::ofstream fp(tsPath.CStr(), std::ofstream::out | std::ostream::trunc);
|
|
|
|
fp << std::fixed << Utility::GetTime();
|
|
fp.close();
|
|
}
|
|
|
|
String authPath = productionZonesDir + "/.authoritative";
|
|
|
|
if (!Utility::PathExists(authPath)) {
|
|
std::ofstream fp(authPath.CStr(), std::ofstream::out | std::ostream::trunc);
|
|
fp.close();
|
|
}
|
|
|
|
// Checksums.
|
|
String checksumsPath = productionZonesDir + "/.checksums";
|
|
|
|
if (Utility::PathExists(checksumsPath))
|
|
Utility::Remove(checksumsPath);
|
|
|
|
std::ofstream fp(checksumsPath.CStr(), std::ofstream::out | std::ostream::trunc);
|
|
|
|
fp << std::fixed << JsonEncode(newConfigInfo.Checksums);
|
|
fp.close();
|
|
|
|
Log(LogNotice, "ApiListener")
|
|
<< "Updated meta data for cluster config sync. Checksum: '" << checksumsPath
|
|
<< "', timestamp: '" << tsPath << "', auth: '" << authPath << "'.";
|
|
}
|
|
|
|
/**
|
|
* Entrypoint for sending a file based config update to a cluster client.
|
|
* This includes security checks for zone relations.
|
|
* Loads the zone config files where this client belongs to
|
|
* and sends the 'config::Update' JSON-RPC message.
|
|
*
|
|
* @param aclient Connected JSON-RPC client.
|
|
*/
|
|
void ApiListener::SendConfigUpdate(const JsonRpcConnection::Ptr& aclient)
|
|
{
|
|
Endpoint::Ptr endpoint = aclient->GetEndpoint();
|
|
ASSERT(endpoint);
|
|
|
|
Zone::Ptr clientZone = endpoint->GetZone();
|
|
Zone::Ptr localZone = Zone::GetLocalZone();
|
|
|
|
// Don't send config updates to parent zones
|
|
if (!clientZone->IsChildOf(localZone))
|
|
return;
|
|
|
|
Dictionary::Ptr configUpdateV1 = new Dictionary();
|
|
Dictionary::Ptr configUpdateV2 = new Dictionary();
|
|
Dictionary::Ptr configUpdateChecksums = new Dictionary(); // new since 2.11
|
|
|
|
String zonesDir = GetApiZonesDir();
|
|
|
|
for (const Zone::Ptr& zone : ConfigType::GetObjectsByType<Zone>()) {
|
|
String zoneName = zone->GetName();
|
|
String zoneDir = zonesDir + zoneName;
|
|
|
|
// Only sync child and global zones.
|
|
if (!zone->IsChildOf(clientZone) && !zone->IsGlobal())
|
|
continue;
|
|
|
|
// Zone was configured, but there's no configuration directory.
|
|
if (!Utility::PathExists(zoneDir))
|
|
continue;
|
|
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Syncing configuration files for " << (zone->IsGlobal() ? "global " : "")
|
|
<< "zone '" << zoneName << "' to endpoint '" << endpoint->GetName() << "'.";
|
|
|
|
ConfigDirInformation config = LoadConfigDir(zoneDir);
|
|
|
|
configUpdateV1->Set(zoneName, config.UpdateV1);
|
|
configUpdateV2->Set(zoneName, config.UpdateV2);
|
|
configUpdateChecksums->Set(zoneName, config.Checksums); // new since 2.11
|
|
}
|
|
|
|
Dictionary::Ptr message = new Dictionary({
|
|
{ "jsonrpc", "2.0" },
|
|
{ "method", "config::Update" },
|
|
{ "params", new Dictionary({
|
|
{ "update", configUpdateV1 },
|
|
{ "update_v2", configUpdateV2 }, // Since 2.4.2.
|
|
{ "checksums", configUpdateChecksums } // Since 2.11.0.
|
|
}) }
|
|
});
|
|
|
|
aclient->SendMessage(message);
|
|
}
|
|
|
|
static bool CompareTimestampsConfigChange(const Dictionary::Ptr& productionConfig, const Dictionary::Ptr& receivedConfig,
|
|
const String& stageConfigZoneDir)
|
|
{
|
|
double productionTimestamp;
|
|
double receivedTimestamp;
|
|
|
|
// Missing production timestamp means that something really broke. Always trigger a config change then.
|
|
if (!productionConfig->Contains("/.timestamp"))
|
|
productionTimestamp = 0;
|
|
else
|
|
productionTimestamp = productionConfig->Get("/.timestamp");
|
|
|
|
// Missing received config timestamp means that something really broke. Always trigger a config change then.
|
|
if (!receivedConfig->Contains("/.timestamp"))
|
|
receivedTimestamp = Utility::GetTime() + 10;
|
|
else
|
|
receivedTimestamp = receivedConfig->Get("/.timestamp");
|
|
|
|
bool configChange;
|
|
|
|
// Skip update if our configuration files are more recent.
|
|
if (productionTimestamp >= receivedTimestamp) {
|
|
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Our production configuration is more recent than the received configuration update."
|
|
<< " Ignoring configuration file update for path '" << stageConfigZoneDir << "'. Current timestamp '"
|
|
<< Utility::FormatDateTime("%Y-%m-%d %H:%M:%S %z", productionTimestamp) << "' ("
|
|
<< std::fixed << std::setprecision(6) << productionTimestamp
|
|
<< ") >= received timestamp '"
|
|
<< Utility::FormatDateTime("%Y-%m-%d %H:%M:%S %z", receivedTimestamp) << "' ("
|
|
<< receivedTimestamp << ").";
|
|
|
|
configChange = false;
|
|
|
|
} else {
|
|
configChange = true;
|
|
}
|
|
|
|
// Update the .timestamp file inside the staging directory.
|
|
String tsPath = stageConfigZoneDir + "/.timestamp";
|
|
|
|
if (!Utility::PathExists(tsPath)) {
|
|
std::ofstream fp(tsPath.CStr(), std::ofstream::out | std::ostream::trunc);
|
|
fp << std::fixed << receivedTimestamp;
|
|
fp.close();
|
|
}
|
|
|
|
return configChange;
|
|
}
|
|
|
|
/**
|
|
* Registered handler when a new config::Update message is received.
|
|
*
|
|
* Checks destination and permissions first, locks the transaction and analyses the update.
|
|
* The newly received configuration is not copied to production immediately,
|
|
* but into the staging directory first.
|
|
* Last, the async validation and restart is triggered.
|
|
*
|
|
* @param origin Where this message came from.
|
|
* @param params Message parameters including the config updates.
|
|
* @returns Empty, required by the interface.
|
|
*/
|
|
Value ApiListener::ConfigUpdateHandler(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
|
|
{
|
|
// Verify permissions and trust relationship.
|
|
if (!origin->FromClient->GetEndpoint() || (origin->FromZone && !Zone::GetLocalZone()->IsChildOf(origin->FromZone)))
|
|
return Empty;
|
|
|
|
ApiListener::Ptr listener = ApiListener::GetInstance();
|
|
|
|
if (!listener) {
|
|
Log(LogCritical, "ApiListener", "No instance available.");
|
|
return Empty;
|
|
}
|
|
|
|
if (!listener->GetAcceptConfig()) {
|
|
Log(LogWarning, "ApiListener")
|
|
<< "Ignoring config update. '" << listener->GetName() << "' does not accept config.";
|
|
return Empty;
|
|
}
|
|
|
|
std::thread([origin, params, listener]() {
|
|
try {
|
|
listener->HandleConfigUpdate(origin, params);
|
|
} catch (const std::exception& ex) {
|
|
auto msg ("Exception during config sync: " + DiagnosticInformation(ex));
|
|
|
|
Log(LogCritical, "ApiListener") << msg;
|
|
listener->UpdateLastFailedZonesStageValidation(msg);
|
|
}
|
|
}).detach();
|
|
return Empty;
|
|
}
|
|
|
|
void ApiListener::HandleConfigUpdate(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
|
|
{
|
|
/* Only one transaction is allowed, concurrent message handlers need to wait.
|
|
* This affects two parent endpoints sending the config in the same moment.
|
|
*/
|
|
std::lock_guard<std::mutex> lock(m_ConfigSyncStageLock);
|
|
|
|
String apiZonesStageDir = GetApiZonesStageDir();
|
|
String fromEndpointName = origin->FromClient->GetEndpoint()->GetName();
|
|
String fromZoneName = GetFromZoneName(origin->FromZone);
|
|
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Applying config update from endpoint '" << fromEndpointName
|
|
<< "' of zone '" << fromZoneName << "'.";
|
|
|
|
// Config files.
|
|
Dictionary::Ptr updateV1 = params->Get("update");
|
|
// Meta data files: .timestamp, etc.
|
|
Dictionary::Ptr updateV2 = params->Get("update_v2");
|
|
|
|
// New since 2.11.0.
|
|
Dictionary::Ptr checksums;
|
|
|
|
if (params->Contains("checksums"))
|
|
checksums = params->Get("checksums");
|
|
|
|
bool configChange = false;
|
|
|
|
// Keep track of the relative config paths for later validation and copying. TODO: Find a better algorithm.
|
|
std::vector<String> relativePaths;
|
|
|
|
/*
|
|
* We can and must safely purge the staging directory, as the difference is taken between
|
|
* runtime production config and newly received configuration.
|
|
* This is needed to not mix deleted/changed content between received and stage
|
|
* config.
|
|
*/
|
|
if (Utility::PathExists(apiZonesStageDir))
|
|
Utility::RemoveDirRecursive(apiZonesStageDir);
|
|
|
|
Utility::MkDirP(apiZonesStageDir, 0700);
|
|
|
|
// Analyse and process the update.
|
|
size_t count = 0;
|
|
|
|
ObjectLock olock(updateV1);
|
|
|
|
for (const Dictionary::Pair& kv : updateV1) {
|
|
|
|
// Check for the configured zones.
|
|
String zoneName = kv.first;
|
|
Zone::Ptr zone = Zone::GetByName(zoneName);
|
|
|
|
if (!zone) {
|
|
Log(LogWarning, "ApiListener")
|
|
<< "Ignoring config update from endpoint '" << fromEndpointName
|
|
<< "' for unknown zone '" << zoneName << "'.";
|
|
|
|
continue;
|
|
}
|
|
|
|
// Ignore updates where we have an authoritive copy in etc/zones.d, packages, etc.
|
|
if (ConfigCompiler::HasZoneConfigAuthority(zoneName)) {
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Ignoring config update from endpoint '" << fromEndpointName
|
|
<< "' for zone '" << zoneName << "' because we have an authoritative version of the zone's config.";
|
|
|
|
continue;
|
|
}
|
|
|
|
// Put the received configuration into our stage directory.
|
|
String productionConfigZoneDir = GetApiZonesDir() + zoneName;
|
|
String stageConfigZoneDir = GetApiZonesStageDir() + zoneName;
|
|
|
|
Utility::MkDirP(productionConfigZoneDir, 0700);
|
|
Utility::MkDirP(stageConfigZoneDir, 0700);
|
|
|
|
// Merge the config information.
|
|
ConfigDirInformation newConfigInfo;
|
|
newConfigInfo.UpdateV1 = kv.second;
|
|
|
|
// Load metadata.
|
|
if (updateV2)
|
|
newConfigInfo.UpdateV2 = updateV2->Get(kv.first);
|
|
|
|
// Load checksums. New since 2.11.
|
|
if (checksums)
|
|
newConfigInfo.Checksums = checksums->Get(kv.first);
|
|
|
|
// Load the current production config details.
|
|
ConfigDirInformation productionConfigInfo = LoadConfigDir(productionConfigZoneDir);
|
|
|
|
// Merge updateV1 and updateV2
|
|
Dictionary::Ptr productionConfig = MergeConfigUpdate(productionConfigInfo);
|
|
Dictionary::Ptr newConfig = MergeConfigUpdate(newConfigInfo);
|
|
|
|
bool timestampChanged = false;
|
|
|
|
if (CompareTimestampsConfigChange(productionConfig, newConfig, stageConfigZoneDir)) {
|
|
timestampChanged = true;
|
|
}
|
|
|
|
/* If we have received 'checksums' via cluster message, go for it.
|
|
* Otherwise do the old timestamp dance for versions < 2.11.
|
|
*/
|
|
if (checksums) {
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Received configuration for zone '" << zoneName << "' from endpoint '"
|
|
<< fromEndpointName << "'. Comparing the timestamp and checksums.";
|
|
|
|
if (timestampChanged) {
|
|
|
|
if (CheckConfigChange(productionConfigInfo, newConfigInfo))
|
|
configChange = true;
|
|
}
|
|
|
|
} else {
|
|
/* Fallback to timestamp handling when the parent endpoint didn't send checks.
|
|
* This can happen when the satellite is 2.11 and the master is 2.10.
|
|
*
|
|
* TODO: Deprecate and remove this behaviour in 2.13+.
|
|
*/
|
|
|
|
Log(LogWarning, "ApiListener")
|
|
<< "Received configuration update without checksums from parent endpoint "
|
|
<< fromEndpointName << ". This behaviour is deprecated. Please upgrade the parent endpoint to 2.11+";
|
|
|
|
if (timestampChanged) {
|
|
configChange = true;
|
|
}
|
|
|
|
// Keep another hack when there's a timestamp file missing.
|
|
{
|
|
ObjectLock olock(newConfig);
|
|
|
|
for (const Dictionary::Pair &kv : newConfig) {
|
|
|
|
// This is super expensive with a string content comparison.
|
|
if (productionConfig->Get(kv.first) != kv.second) {
|
|
if (!Utility::Match("*/.timestamp", kv.first))
|
|
configChange = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Dump the received configuration for this zone into the stage directory.
|
|
size_t numBytes = 0;
|
|
|
|
{
|
|
ObjectLock olock(newConfig);
|
|
|
|
for (const Dictionary::Pair& kv : newConfig) {
|
|
|
|
/* Store the relative config file path for later validation and activation.
|
|
* IMPORTANT: Store this prior to any filters.
|
|
* */
|
|
relativePaths.push_back(zoneName + "/" + kv.first);
|
|
|
|
String path = stageConfigZoneDir + "/" + kv.first;
|
|
|
|
if (Utility::Match("*.conf", path)) {
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Stage: Updating received configuration file '" << path << "' for zone '" << zoneName << "'.";
|
|
}
|
|
|
|
// Parent nodes < 2.11 always send this, avoid this bug and deny its receival prior to writing it on disk.
|
|
if (Utility::BaseName(path) == ".authoritative")
|
|
continue;
|
|
|
|
// Sync string content only.
|
|
String content = kv.second;
|
|
|
|
// Generate a directory tree (zones/1/2/3 might not exist yet).
|
|
Utility::MkDirP(Utility::DirName(path), 0755);
|
|
|
|
// Write the content to file.
|
|
std::ofstream fp(path.CStr(), std::ofstream::out | std::ostream::binary | std::ostream::trunc);
|
|
fp << content;
|
|
fp.close();
|
|
|
|
numBytes += content.GetLength();
|
|
}
|
|
}
|
|
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Applying configuration file update for path '" << stageConfigZoneDir << "' ("
|
|
<< numBytes << " Bytes).";
|
|
|
|
if (timestampChanged) {
|
|
// If the update removes a path, delete it on disk and signal a config change.
|
|
ObjectLock xlock(productionConfig);
|
|
|
|
for (const Dictionary::Pair& kv : productionConfig) {
|
|
if (!newConfig->Contains(kv.first)) {
|
|
configChange = true;
|
|
|
|
String path = stageConfigZoneDir + "/" + kv.first;
|
|
Utility::Remove(path);
|
|
}
|
|
}
|
|
}
|
|
|
|
count++;
|
|
}
|
|
|
|
/*
|
|
* We have processed all configuration files and stored them in the staging directory.
|
|
*
|
|
* We need to store them locally for later analysis. A config change means
|
|
* that we will validate the configuration in a separate process sandbox,
|
|
* and only copy the configuration to production when everything is ok.
|
|
*
|
|
* A successful validation also triggers the final restart.
|
|
*/
|
|
if (configChange) {
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Received configuration updates (" << count << ") from endpoint '" << fromEndpointName
|
|
<< "' are different to production, triggering validation and reload.";
|
|
TryActivateZonesStage(relativePaths);
|
|
} else {
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Received configuration updates (" << count << ") from endpoint '" << fromEndpointName
|
|
<< "' are equal to production, skipping validation and reload.";
|
|
ClearLastFailedZonesStageValidation();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Spawns a new validation process with 'System.ZonesStageVarDir' set to override the config validation zone dirs with
|
|
* 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. On validation failure, there is no restart and this is logged.
|
|
*
|
|
* The caller of this function must hold m_ConfigSyncStageLock.
|
|
*
|
|
* @param relativePaths Collected paths including the zone name, which are copied from stage to current directories.
|
|
*/
|
|
void ApiListener::TryActivateZonesStage(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 apiZonesStageDir = GetApiZonesStageDir();
|
|
|
|
String logFile = apiZonesStageDir + "/startup.log";
|
|
std::ofstream fpLog(logFile.CStr(), std::ofstream::out | std::ostream::binary | std::ostream::trunc);
|
|
fpLog << pr.Output;
|
|
fpLog.close();
|
|
|
|
String statusFile = apiZonesStageDir + "/status";
|
|
std::ofstream fpStatus(statusFile.CStr(), std::ofstream::out | std::ostream::binary | std::ostream::trunc);
|
|
fpStatus << pr.ExitStatus;
|
|
fpStatus.close();
|
|
|
|
// Validation went fine, copy stage and reload.
|
|
if (pr.ExitStatus == 0) {
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Config validation for stage '" << apiZonesStageDir << "' was OK, replacing into '" << apiZonesDir << "' and triggering reload.";
|
|
|
|
// Purge production before copying stage.
|
|
if (Utility::PathExists(apiZonesDir))
|
|
Utility::RemoveDirRecursive(apiZonesDir);
|
|
|
|
Utility::MkDirP(apiZonesDir, 0700);
|
|
|
|
// Copy all synced configuration files from stage to production.
|
|
for (const String& path : relativePaths) {
|
|
if (!Utility::PathExists(apiZonesStageDir + path))
|
|
continue;
|
|
|
|
Log(LogInformation, "ApiListener")
|
|
<< "Copying file '" << path << "' from config sync staging to production zones directory.";
|
|
|
|
String stagePath = apiZonesStageDir + path;
|
|
String currentPath = apiZonesDir + path;
|
|
|
|
Utility::MkDirP(Utility::DirName(currentPath), 0700);
|
|
|
|
Utility::CopyFile(stagePath, currentPath);
|
|
}
|
|
|
|
// Clear any failed deployment before
|
|
ApiListener::Ptr listener = ApiListener::GetInstance();
|
|
|
|
if (listener)
|
|
listener->ClearLastFailedZonesStageValidation();
|
|
|
|
Application::RequestRestart();
|
|
|
|
// All good, return early.
|
|
return;
|
|
}
|
|
|
|
// Error case.
|
|
Log(LogCritical, "ApiListener")
|
|
<< "Config validation failed for staged cluster config sync in '" << apiZonesStageDir
|
|
<< "'. Aborting. Logs: '" << logFile << "'";
|
|
|
|
ApiListener::Ptr listener = ApiListener::GetInstance();
|
|
|
|
if (listener)
|
|
listener->UpdateLastFailedZonesStageValidation(pr.Output);
|
|
}
|
|
|
|
/**
|
|
* Update the structure from the last failed validation output.
|
|
* Uses the current timestamp.
|
|
*
|
|
* @param log The process output from the config validation.
|
|
*/
|
|
void ApiListener::UpdateLastFailedZonesStageValidation(const String& log)
|
|
{
|
|
Dictionary::Ptr lastFailedZonesStageValidation = new Dictionary({
|
|
{ "log", log },
|
|
{ "ts", Utility::GetTime() }
|
|
});
|
|
|
|
SetLastFailedZonesStageValidation(lastFailedZonesStageValidation);
|
|
}
|
|
|
|
/**
|
|
* Clear the structure for the last failed reload.
|
|
*
|
|
*/
|
|
void ApiListener::ClearLastFailedZonesStageValidation()
|
|
{
|
|
SetLastFailedZonesStageValidation(Dictionary::Ptr());
|
|
}
|
|
|
|
/**
|
|
* Generate a config checksum.
|
|
*
|
|
* @param content String content used for generating the checksum.
|
|
* @returns The checksum as string.
|
|
*/
|
|
String ApiListener::GetChecksum(const String& content)
|
|
{
|
|
return SHA256(content);
|
|
}
|
|
|
|
bool ApiListener::CheckConfigChange(const ConfigDirInformation& oldConfig, const ConfigDirInformation& newConfig)
|
|
{
|
|
Dictionary::Ptr oldChecksums = oldConfig.Checksums;
|
|
Dictionary::Ptr newChecksums = newConfig.Checksums;
|
|
|
|
// TODO: Figure out whether normal users need this for debugging.
|
|
Log(LogDebug, "ApiListener")
|
|
<< "Checking for config change between stage and production. Old (" << oldChecksums->GetLength() << "): '"
|
|
<< JsonEncode(oldChecksums)
|
|
<< "' vs. new (" << newChecksums->GetLength() << "): '"
|
|
<< JsonEncode(newChecksums) << "'.";
|
|
|
|
/* Since internal files are synced here too, we can not depend on length.
|
|
* So we need to go through both checksum sets to cover the cases"everything is new" and "everything was deleted".
|
|
*/
|
|
{
|
|
ObjectLock olock(oldChecksums);
|
|
for (const Dictionary::Pair& kv : oldChecksums) {
|
|
String path = kv.first;
|
|
String oldChecksum = kv.second;
|
|
|
|
/* Ignore internal files, especially .timestamp and .checksums.
|
|
*
|
|
* If we don't, this results in "always change" restart loops.
|
|
*/
|
|
if (Utility::Match("/.*", path)) {
|
|
Log(LogDebug, "ApiListener")
|
|
<< "Ignoring old internal file '" << path << "'.";
|
|
|
|
continue;
|
|
}
|
|
|
|
Log(LogDebug, "ApiListener")
|
|
<< "Checking " << path << " for old checksum: " << oldChecksum << ".";
|
|
|
|
// Check if key exists first for more verbose logging.
|
|
// Note: Don't do this later on.
|
|
if (!newChecksums->Contains(path)) {
|
|
Log(LogDebug, "ApiListener")
|
|
<< "File '" << path << "' was deleted by remote.";
|
|
|
|
return true;
|
|
}
|
|
|
|
String newChecksum = newChecksums->Get(path);
|
|
|
|
if (newChecksum != kv.second) {
|
|
Log(LogDebug, "ApiListener")
|
|
<< "Path '" << path << "' doesn't match old checksum '"
|
|
<< oldChecksum << "' with new checksum '" << newChecksum << "'.";
|
|
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
{
|
|
ObjectLock olock(newChecksums);
|
|
for (const Dictionary::Pair& kv : newChecksums) {
|
|
String path = kv.first;
|
|
String newChecksum = kv.second;
|
|
|
|
/* Ignore internal files, especially .timestamp and .checksums.
|
|
*
|
|
* If we don't, this results in "always change" restart loops.
|
|
*/
|
|
if (Utility::Match("/.*", path)) {
|
|
Log(LogDebug, "ApiListener")
|
|
<< "Ignoring new internal file '" << path << "'.";
|
|
|
|
continue;
|
|
}
|
|
|
|
Log(LogDebug, "ApiListener")
|
|
<< "Checking " << path << " for new checksum: " << newChecksum << ".";
|
|
|
|
// Check if the checksum exists, checksums in both sets have already been compared
|
|
if (!oldChecksums->Contains(path)) {
|
|
Log(LogDebug, "ApiListener")
|
|
<< "File '" << path << "' was added by remote.";
|
|
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Load the given config dir and read their file content into the config structure.
|
|
*
|
|
* @param dir Path to the config directory.
|
|
* @returns ConfigDirInformation structure.
|
|
*/
|
|
ConfigDirInformation ApiListener::LoadConfigDir(const String& dir)
|
|
{
|
|
ConfigDirInformation config;
|
|
config.UpdateV1 = new Dictionary();
|
|
config.UpdateV2 = new Dictionary();
|
|
config.Checksums = new Dictionary();
|
|
|
|
Utility::GlobRecursive(dir, "*", [&config, dir](const String& file) { ConfigGlobHandler(config, dir, file); }, GlobFile);
|
|
return config;
|
|
}
|
|
|
|
/**
|
|
* Read the given file and store it in the config information structure.
|
|
* Callback function for Glob().
|
|
*
|
|
* @param config Reference to the config information object.
|
|
* @param path File path.
|
|
* @param file Full file name.
|
|
*/
|
|
void ApiListener::ConfigGlobHandler(ConfigDirInformation& config, const String& path, const String& file)
|
|
{
|
|
// Avoid loading the authoritative marker for syncs at all cost.
|
|
if (Utility::BaseName(file) == ".authoritative")
|
|
return;
|
|
|
|
CONTEXT("Creating config update for file '" + file + "'");
|
|
|
|
Log(LogNotice, "ApiListener")
|
|
<< "Creating config update for file '" << file << "'.";
|
|
|
|
std::ifstream fp(file.CStr(), std::ifstream::binary);
|
|
if (!fp)
|
|
return;
|
|
|
|
String content((std::istreambuf_iterator<char>(fp)), std::istreambuf_iterator<char>());
|
|
|
|
Dictionary::Ptr update;
|
|
String relativePath = file.SubStr(path.GetLength());
|
|
|
|
/*
|
|
* 'update' messages contain conf files. 'update_v2' syncs everything else (.timestamp).
|
|
*
|
|
* **Keep this intact to stay compatible with older clients.**
|
|
*/
|
|
String sanitizedContent = Utility::ValidateUTF8(content);
|
|
|
|
if (Utility::Match("*.conf", file)) {
|
|
update = config.UpdateV1;
|
|
|
|
// Configuration files should be automatically sanitized with UTF8.
|
|
update->Set(relativePath, sanitizedContent);
|
|
} else {
|
|
update = config.UpdateV2;
|
|
|
|
/*
|
|
* Ensure that only valid UTF8 content is being read for the cluster config sync.
|
|
* Binary files are not supported when wrapped into JSON encoded messages.
|
|
* Rationale: https://github.com/Icinga/icinga2/issues/7382
|
|
*/
|
|
if (content != sanitizedContent) {
|
|
Log(LogCritical, "ApiListener")
|
|
<< "Ignoring file '" << file << "' for cluster config sync: Does not contain valid UTF8. Binary files are not supported.";
|
|
return;
|
|
}
|
|
|
|
update->Set(relativePath, content);
|
|
}
|
|
|
|
/* Calculate a checksum for each file (and a global one later).
|
|
*
|
|
* IMPORTANT: Ignore the .authoritative file above, this must not be synced.
|
|
* */
|
|
config.Checksums->Set(relativePath, GetChecksum(content));
|
|
}
|
|
|
|
/**
|
|
* Compatibility helper for merging config update v1 and v2 into a global result.
|
|
*
|
|
* @param config Config information structure.
|
|
* @returns Dictionary which holds the merged information.
|
|
*/
|
|
Dictionary::Ptr ApiListener::MergeConfigUpdate(const ConfigDirInformation& config)
|
|
{
|
|
Dictionary::Ptr result = new Dictionary();
|
|
|
|
if (config.UpdateV1)
|
|
config.UpdateV1->CopyTo(result);
|
|
|
|
if (config.UpdateV2)
|
|
config.UpdateV2->CopyTo(result);
|
|
|
|
return result;
|
|
}
|