added support for pid file

.gitignore

@@ -6,3 +6,4 @@ bin/
 build/
 logs/
 .DS_Store
+bgpalerter.pid

config.yml.example

@@ -178,3 +178,5 @@ uptimeMonitor:
   port: 8011
 
 ############################
+
+pidFile: bgpalerter.pid

src/env.js

@@ -129,7 +129,8 @@ let config = {
         active: false,
         useStatusCodes: true,
         port: 8011
-    }
+    },
+    pidFile: "bgpalerter.pid"
 };
 
 

src/worker.js

@@ -33,6 +33,7 @@
 import Consumer from "./consumer";
 import ConnectorFactory from "./connectorFactory";
 import cluster from "cluster";
+import fs from "fs";
 
 export default class Worker {
     constructor(configFile) {
@@ -63,10 +64,20 @@ export default class Worker {
     }
 
     master = (worker) => {
-
         console.log("BGPalerter, version:", this.version, "environment:", this.config.environment);
         console.log("Loaded config:", this.configFile);
 
+        // Write pid on a file
+        if (this.config.pidFile) {
+            try {
+                fs.writeFileSync(this.config.pidFile, process.pid);
+            } catch (error) {
+                this.logger.log({
+                    level: 'error',
+                    message: "Cannot write pid file: " + error
+                });
+            }
+        }
 
         const connectorFactory = new ConnectorFactory();
 

tests/1_config.js

@@ -77,7 +77,8 @@ describe("Composition", function() {
                     "monitoredPrefixesFiles",
                     "logging",
                     "checkForUpdatesAtBoot",
-                    "uptimeMonitor"
+                    "uptimeMonitor",
+                    "pidFile"
                 ]);
             expect(config.connectors[0]).to.have
                 .property('class')
@@ -326,6 +327,21 @@ describe("Composition", function() {
                     done();
                 });
         });
+
+        it("write pid file", function (done) {
+            const file = config.pidFile;
+            expect("bgpalerter.pid").to.equal(file);
+
+            if (file) {
+                readLastLines
+                    .read(file, 1)
+                    .then((line) => {
+                        expect(parseInt(line)).to.equal(process.pid);
+                        done();
+                    });
+            }
+        });
+
     });
 
 });

tests/config.test.yml

@@ -66,4 +66,6 @@ checkForUpdatesAtBoot: true
 uptimeMonitor:
   active: true
   useStatusCodes: true
-  port: 8011
+  port: 8011
+
+pidFile: bgpalerter.pid