Use Heroku to Deploy

HerokuDockerfile

@@ -0,0 +1,17 @@
+FROM ubuntu:20.04
+ARG DEBIAN_FRONTEND=noninteractive
+ENV RUSTUP_HOME=/usr/local/rustup \
+    CARGO_HOME=/usr/local/cargo \
+    PATH=/usr/local/cargo/bin:$PATH
+RUN apt-get update \
+    && apt-get install -y tzdata \
+    && apt-get -y upgrade && apt-get install -y build-essential curl wget git vim libboost-all-dev
+RUN curl -sL https://deb.nodesource.com/setup_14.x |  bash \
+    && apt-get install -y nodejs \
+    && npm install -y -g ssvmup --unsafe-perm \
+    && npm install -y ssvm \
+    && npm install express express-fileupload
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+ADD . ./
+RUN ssvmup build
+CMD node node/app.js

README.md

@@ -26,6 +26,22 @@ $ curl http://localhost:3000/?name=SSVM
 hello SSVM
 ```
 
+## Use Heroku to Deploy
+Use this button [![Heroku Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/nizam0906/ssvm-nodejs-starter)
+
+![SSVM](https://github.com/nizam0906/ssvm-nodejs-starter/blob/master/docs/img/heroku.gif?raw=true)
+
+Or create a Heroku app manually:
+
+```
+$ heroku create
+$ heroku stack:set container
+$ git push heroku master
+...
+remote: Verifying deploy... done.
+To https://git.heroku.com/ssvm-nodejs-starter.git
+ * [new branch]      master -> master
+```
 
 ## Use VSCode Codespace
 

app.json

@@ -0,0 +1,10 @@
+{
+  "name": "ssvm-nodejs-starter",
+  "description": "A template project to run Rust functions in Node.js through the Second State WebAssembly engine.",
+  "stack": "container",
+  "env":{
+    "HEROKU_APP_NAME": {
+      "required": true
+    }
+  }
+}

heroku.yml

@@ -0,0 +1,3 @@
+build:
+  docker:
+    web: HerokuDockerfile

node/app.js

@@ -2,13 +2,14 @@ const { say } = require('../pkg/ssvm_nodejs_starter_lib.js');
 
 const http = require('http');
 const url = require('url');
-const hostname = '0.0.0.0';
-const port = 3000;
+const hostname = '0.0.0.0'; 
+const port = process.env.PORT || 3000;
+const appname = (process.env.HEROKU_APP_NAME) ? process.env.HEROKU_APP_NAME + '.herokuapp.com' : hostname + ':' + port;
 
 const server = http.createServer((req, res) => {
   const queryObject = url.parse(req.url,true).query;
   if (!queryObject['name']) {
-    res.end(`Please use command curl http://${hostname}:${port}/?name=MyName \n`);
+    res.end(`Please use command curl http://${appname}/?name=MyName \n`);
   } else {
     res.end(say(queryObject['name']) + '\n');
   }