CODEWITHSUNDEEP
node.jsazuregithub
Øyvind Bråthen
Øyvind Bråthen

Reputation: 60694

Getting a node.js application hosted on GitHub to run in Azure properly

I'm trying to host a node.js application hosted on GitHub in Azure. I have made it down to the minimal example that still fails.

This is my ./server/index.js file:

var http = require('http');

var server = http.createServer(function (request, response){
    response.writeHead(200, {"Content-Type": "text/plain"});
    response.end("Hello world!\n");
});

server.listen(80);
console.log("Server running at http://127.0.0.1:80/");

And this is my package.json file:

{
    "name": "testapp",
    "version": "1.0.0",
    "description": "",
    "main": "./server/index.js",
    "scripts": {
        "start": "node ./server/index.js",
        "test": "echo \"Error: no test specified\" && exit 1"
    },
    "author": "",
    "license": "ISC"
}

That is all files of my application. If I start it up with npm starton localhost it works fine, and I get the "Hello world!" response as expected.

Then I made a repo on GitHub, and pushed this application to GitHub, and have verified that both files are present there.

Then I created a Web app in Azure, and set it to deploy from this GitHub repo, and it seems that the build worked just fine. This is the output from Generating Deployment Script:

Using cached version of deployment script (command: 'azure -y --no-dot-  deployment -r "D:\home\site\repository" -o "D:\home\site\deployments\tools" --node --sitePath "D:\home\site\repository"').

And this is the output of Running Deployment Command:

Command: "D:\home\site\deployments\tools\deploy.cmd"
Handling node.js deployment.
KuduSync.NET from: 'D:\home\site\repository' to: 'D:\home\site\wwwroot'
Copying file: 'server\index.js'
Using start-up script server/index.js from package.json.
Generated web.config.
The package.json file does not specify node.js engine version constraints.
The node.js application will run with the default node.js version 4.2.3.
Selected npm version 3.5.1
npm WARN [email protected] No description
npm WARN [email protected] No repository field.
Finished successfully.

And Azure says delpoyment successful.

However, when I navigate to appname.azurewebsites.net, it responds with a Status Code of 500, and no response data at all.

What is the puzzle part I'm missing here to get this to work as expected?

Upvotes: 0

Views: 363

Answers (1)

dwhieb
dwhieb

Reputation: 1836

Azure makes the port for your app available at process.env.PORT, so you can do something like this:

process.env.PORT = process.env.PORT || 80;

server.listen(process.env.PORT);

If the app is running on Azure, it'll use the port assigned by Azure. If it's running on localhost, it'll use 80 instead.

Upvotes: 1

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