Merge pull request #1 from Icenium/kerezov/graceful-shutdown

Initial implementation

.gitignore

@@ -36,9 +36,6 @@ build/Release
 node_modules/
 jspm_packages/
 
-# TypeScript v1 declaration files
-typings/
-
 # Optional npm cache directory
 .npm
 

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019 Telerik AppBuilder
+Copyright (c) 2019 Progress Software Corporation. All rights reserved.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

index.js

@@ -0,0 +1,22 @@
+'use strict';
+
+class KubernetesGracefulShutdownSignalHandler {
+    constructor() {
+        this.gracefulShutdown = false;
+    }
+
+    get shouldShutdownGracefully() {
+        return this.gracefulShutdown;
+    }
+
+    installSignalHandler() {
+        if (process.env.RUNNING_KUBERNETES) {
+            process.on('SIGUSR1', () => {
+                this.gracefulShutdown = true;
+            });
+        }
+    }
+}
+
+const kubernetesGracefulShutdownSignalHandler = new KubernetesGracefulShutdownSignalHandler();
+module.exports.kubernetesGracefulShutdownSignalHandler = kubernetesGracefulShutdownSignalHandler;

package.json

@@ -0,0 +1,21 @@
+{
+  "name": "k8s-graceful-shutdown-signal-handler",
+  "types": "./typings/interfaces.d.ts",
+  "version": "0.1.0",
+  "description": "Package for managing graceful shutdown in a k8s cluster",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/Icenium/k8s-graceful-shutdown-signal-handler.git"
+  },
+  "keywords": [],
+  "author": "Progress Software Corporation",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/Icenium/k8s-graceful-shutdown-signal-handler/issues"
+  },
+  "homepage": "https://github.com/Icenium/k8s-graceful-shutdown-signal-handler#readme"
+}

typings/interfaces.d.ts

@@ -0,0 +1,8 @@
+interface KubernetesGracefulShutdownSignalHandler {
+    shouldShutdownGracefully: boolean;
+    installSignalHandler(): void;
+}
+
+declare module "k8s-graceful-shutdown-signal-handler" {
+    export const kubernetesGracefulShutdownSignalHandler: KubernetesGracefulShutdownSignalHandler;
+}