added redis health check in

services/web/app/coffee/Features/HealthCheck/HealthCheckController.coffee

@@ -1,5 +1,8 @@
 Mocha = require "mocha"
 Base = require("mocha/lib/reporters/base")
+redis = require("redis-sharelatex")
+settings = require("settings-sharelatex")
+redisCheck = redis.activeHealthCheckRedis(settings.redis.web)
 
 module.exports = HealthCheckController =
 	check: (req, res, next = (error) ->) ->
@@ -8,6 +11,15 @@ module.exports = HealthCheckController =
 		mocha.run () ->
 			path = require.resolve(__dirname + "/../../../../test/smoke/js/SmokeTests.js")
 			delete require.cache[path]
+
+	checkRedis: (req, res, next)->
+		if redisCheck.isAlive()
+			res.send 200
+		else
+			res.send 500
+
+
+
 		
 Reporter = (res) ->
 	(runner) ->

services/web/app/coffee/router.coffee

@@ -175,6 +175,7 @@ module.exports = class Router
 			req.session.destroy()
 
 		app.get '/health_check', HealthCheckController.check
+		app.get '/health_check/redis', HealthCheckController.checkRedis
 
 		app.get "/status/compiler/:Project_id", SecurityManager.requestCanAccessProject, (req, res) ->
 			sendRes = _.once (statusCode, message)->

services/web/package.json

@@ -31,7 +31,7 @@
     "optimist": "0.6.1",
     "redback": "0.4.0",
     "redis": "0.10.1",
-    "redis-sharelatex": "0.0.6",
+    "redis-sharelatex": "0.0.7",
     "request": "2.34.0",
     "rimraf": "2.2.6",
     "sanitizer": "0.1.1",