Docker nodejs how to#
Docker nodejs install#

The number on the right is the port of the Docker container, which is exposed to the port number on the left of the Vultr instance.Expose port 80 of the Docker container to port 80 of your Vultr instance with: -p 80:80.Run the Docker container named example-name/example-application.If you changed example-name/example-application, be sure to update it in the command above. Step 5: Run the Docker ContainerĪfter building the image, run the container with the following command: docker run -p 80:80 -restart unless-stopped -d example-name/example-application The command may take a few minutes to complete.

This command will build a Docker image and tag ( -t) it with name/application. Run the command below, replacing example-name/example-application with your name and the name of your application (without spaces): $ docker build -t example-name/example-application.

Run the command node index.js to start your application.Ĭreate the docker image using the application code and the Dockerfile.

Paste the following contents into the file. Create the DockerfileĬreate a Dockerfile that describes how Docker will build your application. So far, you've created a basic NodeJS application that has Express as a dependency, listens on port 80, and responds to GET requests at / with 'Hello from Docker!'. Paste the following code: var express = require('express')

Docker nodejs install#

$ npm install expressĬreate an index.js file, which contains the application code.

Docker nodejs how to#

Install the express package, which also creates a package.json file that tells node how to run your application. When prompted for the package name, enter hello_node_docker. Initialize the ~/src directory as a NodeJS application: $ npm init Make a directory named src in the docker user's home directory and navigate into it: $ mkdir ~/src Set up a simple Express app that listens on port 80 and responds to requests at with 'Hello from Docker!'. Install NodeJS and NPM, the Node package manager. Create an instance using the Docker application for Server Type.Use the steps in the One-Click Docker article to set up the instance. The One-Click Docker application automatically installs Docker for you and creates a docker user and group for limited access. In this article, you'll learn how to deploy a simple NodeJS Express web application within a Docker container, using the Vultr One-Click Docker app. Are we missing a guide for your target system? Request one, or submit your own!