Reduce build size (#1)

* use builder container + Zeit PKG

* use webpack to compile the build before packaging

* remove ununsed code

* update docs

.gitignore

@@ -1 +1,3 @@
 node_modules
+app.min.js
+stats.json

Dockerfile

@@ -1,15 +1,15 @@
-FROM node:9.6.1-alpine
-
-RUN mkdir -p /usr/src/app
+FROM node:9.6.1-alpine as builder
+RUN apk update && apk upgrade && \
+    apk add --no-cache bash git openssh
 WORKDIR /usr/src/app
-
-ENV NODE_ENV production
-
-COPY package.json /usr/src/app
+COPY . /usr/src/app
 RUN npm install
-
-COPY src/ /usr/src/app/src/
-
-EXPOSE 80
-
-CMD npm run serve
+RUN npm run build
+RUN npm install -g pkg
+RUN /usr/local/bin/pkg -t node8-alpine-x64 app.min.js -o binary
+
+FROM alpine:latest
+RUN apk update && apk add --no-cache libstdc++ libgcc
+WORKDIR /root/
+COPY --from=builder /usr/src/app/binary binary
+CMD ["./binary"]

README.md

@@ -51,8 +51,8 @@ spec:
                 {
                   "name": "mongodb-check-buffer",
                   "type": "mongoDBCheck",
-                  "url": "mongodb://mongo:27017",
-                  "dbName": "buffer"
+                  "host": "mongo",
+                  "port": 27017
                 }
               ]
             }
@@ -101,8 +101,8 @@ EKG sidecar is passed it's configuration as JSON through the EKG_CONFIG environm
     {
       "name": "mongodb-check-buffer",
       "type": "mongoDBCheck",
-      "url": "mongodb://mongo:27017",
-      "dbName": "buffer",
+      "host": "mongo",
+      "port": 27017,
       "timeout": 5000
     }
   ],
@@ -129,8 +129,8 @@ EKG sidecar is passed it's configuration as JSON through the EKG_CONFIG environm
     {
       "name": "mongodb-check-buffer",
       "type": "mongoDBCheck",
-      "url": "mongodb://mongo:27017",
-      "dbName": "buffer",
+      "host": "mongo",
+      "port": 27017,
       "timeout": 5000
     }
   ]
@@ -203,8 +203,8 @@ Ping a mongodb database
 {
   "name": "mongodb-check-buffer",
   "type": "mongoDBCheck",
-  "url": "mongodb://mongo:27017",
-  "dbName": "buffer",
+  "host": "mongo",
+  "port": 27017,
   "timeout": 5000
 }
 ```
@@ -382,8 +382,8 @@ Returns a function that pings a mongodb database
 
 ```js
 const doCheck = mongoDBCheck({
-  url: 'mongodb://mongo:27017',
-  dbName: 'default',
+  host: 'mongo',
+  port: 27017,
   timeout: 5000,
 })
 

__mocks__/mongodb-core.js

@@ -0,0 +1,20 @@
+const MongoDBCore = {}
+const Server = function() {
+  this.connection = {
+    command: (cmd, args, cb) =>
+      cb(null, {
+        result: {
+          ok: 1,
+        },
+      }),
+    destroy: () => {},
+  }
+  this.on = (type, cb) => {
+    if (type === 'connect') {
+      this.connectCb = cb
+    }
+  }
+  this.connect = () => this.connectCb(this.connection)
+}
+MongoDBCore.Server = jest.fn(Server)
+module.exports = MongoDBCore

example/dev.js

@@ -36,8 +36,8 @@ ekg.addLivenessCheck({
 ekg.addLivenessCheck({
   name: 'mongodb localhost',
   check: mongoDBCheck({
-    url: 'mongodb://localhost:27017',
-    dbName: 'default',
+    host: 'localhost',
+    port: '27017',
   }),
 })
 ekg.addLivenessCheck({
@@ -77,8 +77,8 @@ ekg.addReadinessCheck({
 ekg.addReadinessCheck({
   name: 'mongodb localhost',
   check: mongoDBCheck({
-    url: 'mongodb://localhost:27017',
-    dbName: 'default',
+    host: 'localhost',
+    port: '27017',
   }),
 })
 ekg.addReadinessCheck({