Add nodejs guide

mkdocs.yml

@@ -53,6 +53,7 @@ nav:
     - Using Dockerfile: ./user_guides/deploy_using_dockerfile.md
     - GO apps: ./user_guides/deploy_go_apps.md
     - Python apps: ./user_guides/deploy_python_apps.md
+    - Node.js apps: ./user_guides/deploy_nodejs_apps.md
 
 - Admin guides:
   - Managing clusters: ./admin_guides/managing_clusters.md

src/user_guides/deploy_nodejs_apps.md

@@ -0,0 +1,79 @@
+# Deploy Nodejs applications
+
+
+## Overview
+
+Node.js is a widely recognized runtime, known for its ease of use, low learning curve, and large community. Deploying a Node.js application on Tsuru is an effortless task. You should have a package.json, Procfile, and tsuru.yaml.
+
+
+## Creating the app
+
+To create an app, you use the command app create:
+
+``` bash
+$ tsuru app create <app-name> <app-platform>
+```
+
+For NodeJS, the app platform is, guess what, nodejs! Let’s be over creative and develop a never-developed tutorial-app: a myapp
+
+``` bash
+$ tsuru app create myapp nodejs
+```
+
+## Application code
+
+Basically we need to write 3 files and put on project directory: Procfile, package.json and tsuru.yaml
+
+### Procfile
+
+This file is useful to identify how to execute your application, each line represents a tsuru process, usually process named web is responsabile to receive requests, important NOTE the app may listen requests following PORT envvar OR use the default port 8888
+
+```
+web: node app.js
+```
+
+### package.json
+
+This file is used to pick your nodejs version and install your dependencies.
+
+```
+{
+  "name": "hello-world",
+  "description": "hello world test on tsuru",
+  "version": "0.0.1",
+  "private": true,
+  "dependencies": {
+    "express": "4.21.x"
+  },
+  "engines": {
+    "node": "20.17.0"
+  }
+}
+```
+
+### tsuru.yaml
+
+tsuru.yaml is used to tsuru specific settings, this may be the initial settings:
+
+```
+healthcheck:
+  path: /
+```
+
+### Operating system dependencies: requirements.apt (optional)
+
+list of ubuntu dependencies that will be installed, useful to install tools required for build process
+
+example:
+```
+gcc
+```
+
+
+## Deploy application
+
+Let's deploy our application with command
+
+```
+tsuru app deploy -a blog .
+```