mirror of https://github.com/waku-org/nwaku.git
137 lines
4.1 KiB
Nim
137 lines
4.1 KiB
Nim
{.push raises: [].}
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import
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std/[options, strutils, sequtils, net],
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chronicles,
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chronos,
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metrics,
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libbacktrace,
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system/ansi_c,
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libp2p/crypto/crypto
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import
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../../tools/rln_keystore_generator/rln_keystore_generator,
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../../tools/rln_db_inspector/rln_db_inspector,
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waku/[
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common/logging,
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factory/external_config,
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factory/waku,
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node/health_monitor,
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node/waku_metrics,
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waku_api/rest/builder as rest_server_builder,
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]
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logScope:
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topics = "wakunode main"
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const git_version* {.strdefine.} = "n/a"
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{.pop.}
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# @TODO confutils.nim(775, 17) Error: can raise an unlisted exception: ref IOError
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when isMainModule:
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## Node setup happens in 6 phases:
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## 1. Set up storage
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## 2. Initialize node
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## 3. Mount and initialize configured protocols
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## 4. Start node and mounted protocols
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## 5. Start monitoring tools and external interfaces
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## 6. Setup graceful shutdown hooks
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const versionString = "version / git commit hash: " & waku.git_version
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var conf = WakuNodeConf.load(version = versionString).valueOr:
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error "failure while loading the configuration", error = error
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quit(QuitFailure)
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## Also called within Waku.init. The call to startRestServerEsentials needs the following line
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logging.setupLog(conf.logLevel, conf.logFormat)
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case conf.cmd
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of generateRlnKeystore:
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doRlnKeystoreGenerator(conf)
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of inspectRlnDb:
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doInspectRlnDb(conf)
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of noCommand:
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# NOTE: {.threadvar.} is used to make the global variable GC safe for the closure uses it
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# It will always be called from main thread anyway.
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# Ref: https://nim-lang.org/docs/manual.html#threads-gc-safety
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var nodeHealthMonitor {.threadvar.}: WakuNodeHealthMonitor
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nodeHealthMonitor = WakuNodeHealthMonitor()
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nodeHealthMonitor.setOverallHealth(HealthStatus.INITIALIZING)
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var confCopy = conf
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let restServer = rest_server_builder.startRestServerEsentials(
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nodeHealthMonitor, confCopy
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).valueOr:
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error "Starting esential REST server failed.", error = $error
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quit(QuitFailure)
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var waku = Waku.init(confCopy).valueOr:
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error "Waku initialization failed", error = error
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quit(QuitFailure)
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waku.restServer = restServer
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nodeHealthMonitor.setNode(waku.node)
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(waitFor startWaku(addr waku)).isOkOr:
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error "Starting waku failed", error = error
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quit(QuitFailure)
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rest_server_builder.startRestServerProtocolSupport(
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restServer, waku.node, waku.wakuDiscv5, confCopy
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).isOkOr:
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error "Starting protocols support REST server failed.", error = $error
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quit(QuitFailure)
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waku.metricsServer = waku_metrics.startMetricsServerAndLogging(confCopy).valueOr:
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error "Starting monitoring and external interfaces failed", error = error
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quit(QuitFailure)
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nodeHealthMonitor.setOverallHealth(HealthStatus.READY)
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debug "Setting up shutdown hooks"
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## Setup shutdown hooks for this process.
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## Stop node gracefully on shutdown.
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proc asyncStopper(node: Waku) {.async: (raises: [Exception]).} =
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nodeHealthMonitor.setOverallHealth(HealthStatus.SHUTTING_DOWN)
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await node.stop()
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quit(QuitSuccess)
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# Handle Ctrl-C SIGINT
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proc handleCtrlC() {.noconv.} =
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when defined(windows):
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# workaround for https://github.com/nim-lang/Nim/issues/4057
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setupForeignThreadGc()
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notice "Shutting down after receiving SIGINT"
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asyncSpawn asyncStopper(waku)
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setControlCHook(handleCtrlC)
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# Handle SIGTERM
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when defined(posix):
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proc handleSigterm(signal: cint) {.noconv.} =
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notice "Shutting down after receiving SIGTERM"
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asyncSpawn asyncStopper(waku)
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c_signal(ansi_c.SIGTERM, handleSigterm)
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# Handle SIGSEGV
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when defined(posix):
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proc handleSigsegv(signal: cint) {.noconv.} =
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# Require --debugger:native
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fatal "Shutting down after receiving SIGSEGV", stacktrace = getBacktrace()
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# Not available in -d:release mode
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writeStackTrace()
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waitFor waku.stop()
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quit(QuitFailure)
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c_signal(ansi_c.SIGSEGV, handleSigsegv)
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info "Node setup complete"
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runForever()
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