support dockerfiles without expose command. closes #1083

plugins/00_dokku-standard/commands

@@ -35,7 +35,7 @@ case "$1" in
 
       dockerfile)
         # extract first port from Dockerfile
-        DOCKERFILE_PORT=$(grep EXPOSE Dockerfile | head -1 | awk '{ print $2 }')
+        DOCKERFILE_PORT=$(grep EXPOSE Dockerfile | head -1 | awk '{ print $2 }' || true)
         [[ -n "$DOCKERFILE_PORT" ]] && dokku config:set-norestart $APP DOKKU_DOCKERFILE_PORT=$DOCKERFILE_PORT
 
         # sticking with same pattern of building app image before pre-build for now.

tests.mk

@@ -75,6 +75,10 @@ deploy-test-dockerfile:
 	@echo deploying dockerfile app...
 	cd tests && ./test_deploy ./apps/dockerfile dokku.me
 
+deploy-test-dockerfile-noexpose:
+	@echo deploying dockerfile-noexpose app...
+	cd tests && ./test_deploy ./apps/dockerfile-noexpose dokku.me
+
 deploy-test-gitsubmodules:
 	@echo deploying gitsubmodules app...
 	cd tests && ./test_deploy ./apps/gitsubmodules dokku.me
@@ -125,6 +129,7 @@ deploy-tests:
 	@$(QUIET) $(MAKE) deploy-test-config
 	@$(QUIET) $(MAKE) deploy-test-clojure
 	@$(QUIET) $(MAKE) deploy-test-dockerfile
+	@$(QUIET) $(MAKE) deploy-test-dockerfile-noexpose
 	@$(QUIET) $(MAKE) deploy-test-gitsubmodules
 	@$(QUIET) $(MAKE) deploy-test-go
 	@$(QUIET) $(MAKE) deploy-test-java

tests/apps/dockerfile-noexpose/CHECKS

@@ -0,0 +1 @@
+/ Hello World!

tests/apps/dockerfile-noexpose/Dockerfile

@@ -0,0 +1,13 @@
+FROM ubuntu:trusty
+ENV LC_ALL C
+ENV DEBIAN_FRONTEND noninteractive
+ENV DEBCONF_NONINTERACTIVE_SEEN true
+
+RUN apt-get install -y software-properties-common && add-apt-repository ppa:chris-lea/node.js && apt-get update
+RUN apt-get install -y build-essential curl postgresql-client-9.3 nodejs git
+
+COPY . /app
+WORKDIR /app
+RUN npm install
+
+CMD npm start

tests/apps/dockerfile-noexpose/check_deploy

@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+set -e; output="$(curl -s -S $1)"; echo $output; test "$output" == "Hello World!"

tests/apps/dockerfile-noexpose/index.js

@@ -0,0 +1,13 @@
+var express = require('express')
+var app = express();
+
+app.set('port', (process.env.PORT || 5000))
+app.use(express.static(__dirname + '/public'))
+
+app.get('/', function(request, response) {
+  response.send('Hello World!')
+})
+
+app.listen(app.get('port'), function() {
+  console.log("Node app is running at localhost:" + app.get('port'))
+})

tests/apps/dockerfile-noexpose/package.json

@@ -0,0 +1,29 @@
+{
+  "name": "node-js-sample",
+  "version": "0.1.0",
+  "description": "A sample Node.js app using Express 4",
+  "main": "index.js",
+  "scripts": {
+    "start": "node index.js"
+  },
+  "dependencies": {
+    "express": "^4.0.0"
+  },
+  "engines": {
+    "node": "0.10.x"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/heroku/node-js-sample"
+  },
+  "keywords": [
+    "node",
+    "heroku",
+    "express"
+  ],
+  "author": "Mark Pundsack",
+  "contributors": [
+    "Zeke Sikelianos <zeke@sikelianos.com> (http://zeke.sikelianos.com)"
+  ],
+  "license": "MIT"
+}