From 42d27e96d7b9c3e2544e533ce527b45154ef70ab Mon Sep 17 00:00:00 2001
From: Charles <canssens@gmail.com>
Date: Fri, 21 Sep 2018 17:04:32 +0200
Subject: [PATCH] Add a GET /status 200 Add a healthcheck in docker conf

---
 Dockerfile |  4 ++++
 index.js   | 24 +++++++++++++++++-------
 2 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index d67ff74..6498474 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,4 +8,8 @@ ENV TILE_SET_CACHE 128
 ENV TILE_SET_PATH /app/data
 ENV MAX_POST_SIZE 700kb
 
+EXPOSE 3000
+
+HEALTHCHECK CMD curl --fail http://localhost:3000/status || exit 1
+
 CMD ["yarn", "run", "start"]
diff --git a/index.js b/index.js
index 52e4c81..10ac732 100644
--- a/index.js
+++ b/index.js
@@ -53,13 +53,23 @@ async function handleGET(req, res) {
   return result;
 }
 
+async function handleGETStatus(req, res) {
+  return send(res, 200);
+}
+
 module.exports = async (req, res) => {
-  switch (req.method) {
-    case "POST":
-      return handlePOST(req, res);
-    case "GET":
-      return handleGET(req, res);
-    default:
-      return send(res, 405, { error: "Only GET or POST allowed" });
+  if (req.method == "GET" && req.url == "/status") {
+    return handleGETStatus(req, res);
+  }
+  else
+  {
+    switch (req.method) {
+      case "POST":
+        return handlePOST(req, res);
+      case "GET":
+        return handleGET(req, res);
+      default:
+        return send(res, 405, { error: "Only GET or POST allowed" });
+    }
   }
 };