fixes and add graylog logging

Author: NickOvt

api.js

@@ -562,7 +562,7 @@ module.exports = done => {
     certsRoutes(db, server);
     webhooksRoutes(db, server);
     settingsRoutes(db, server, settingsHandler);
-    healthRoutes(db, server);
+    healthRoutes(db, server, loggelf);
 
     if (process.env.NODE_ENV === 'test') {
         server.get(

lib/api/health.js

@@ -4,7 +4,7 @@ const Joi = require('joi');
 const tools = require('../tools');
 const { successRes } = require('../schemas/response/general-schemas');
 
-module.exports = (db, server) => {
+module.exports = (db, server, loggelf) => {
     server.get(
         {
             path: '/health',
@@ -44,6 +44,10 @@ module.exports = (db, server) => {
                     });
                 }
             } catch (err) {
+                loggelf({
+                    short_message: '[HEALTH] MongoDb is down. MongoDb is not connected.'
+                });
+
                 res.status(500);
                 return res.json({
                     success: false,
@@ -54,9 +58,14 @@ module.exports = (db, server) => {
             // 2) test that mongoDb is writeable
 
             try {
-                await db.database.collection(`${currentTimestamp}`).insert({ a: 'testWrite' });
-                await db.database.collection(`${currentTimestamp}`).deleteOne({ a: 'testWrite' });
+                const insertData = await db.database.collection('health').insertOne({ [`${currentTimestamp}`]: 'testWrite' });
+                await db.database.collection('health').deleteOne({ _id: insertData.insertedId });
             } catch (err) {
+                loggelf({
+                    short_message:
+                        '[HEALTH] could not write to MongoDb. MongoDB is not writeable, cannot write document to collection `health` and delete the document at that path.'
+                });
+
                 res.status(500);
                 return res.json({
                     success: false,
@@ -65,22 +74,36 @@ module.exports = (db, server) => {
             }
 
             // 3) test redis PING
-            db.redis.ping(err => {
-                if (err) {
-                    res.status(500);
-                    return res.json({
-                        success: false,
-                        message: 'Redis is down'
-                    });
-                }
-            });
+            try {
+                await db.redis.ping();
+            } catch (err) {
+                loggelf({
+                    short_message: '[HEALTH] Redis is down. PING to Redis failed.'
+                });
+
+                res.status(500);
+                return res.json({
+                    success: false,
+                    message: 'Redis is down'
+                });
+            }
 
             // 4) test if redis is writeable
             try {
-                await db.redis.set(`${currentTimestamp}`, 'testVal');
-                await db.redis.get(`${currentTimestamp}`);
-                await db.redis.del(`${currentTimestamp}`);
+                await db.redis.hset('health', `${currentTimestamp}`, `${currentTimestamp}`);
+                const data = await db.redis.hget(`health`, `${currentTimestamp}`);
+
+                if (data !== `${currentTimestamp}`) {
+                    throw Error('Received data is not the same!');
+                }
+
+                await db.redis.hdel('health', `${currentTimestamp}`);
             } catch (err) {
+                loggelf({
+                    short_message:
+                        '[HEALTH] Redis is not writeable/readable. Could not set hashkey `health` in redis, failed to get the key and/or delete the key.'
+                });
+
                 res.status(500);
                 return res.json({
                     success: false,