#Docker run image with volume how to#
#Docker run image with volume code#

#Docker run image with volume how to#

In this tutorial we will take a look at the NGINX Official Docker Image and how to use it. Not only is NGINX a fast and reliable static web server, it is also used by a ton of developers as a reverse-proxy that sits in front of their APIs. NGINX is one of the most popular web servers in the world.

#Docker run image with volume code#

In the Node-todo example, you can see from its Dockerfile that the code is located in. The easiest way to figure out where your code is located in your container is to look at the COPY commands in your Dockerfile. How to Configure Your Container to Sync Your Code Automaticallyġ) Find the folder in your Docker container that has your code. A Docker-compose.yml file you use to run that container.A Dockerfile that builds that code into a working container.A git repo with code that you’re working on.Just like the example above, your project needs to have: In future posts, we’ll provide examples for other languages. In this section, we’ll describe how to take one of your existing projects and enable synching for rapid development just like we did above. Syncing Your Code When Developing Your Application Add in all the other distractions you have to deal with, and it’s not a recipe for being productive. If you need to stop and wait every time you need to test a change, it’s challenging to maintain a state of flow. Depending on your application, that can chew up a lot of time.Īnd by saving you time, this technique also makes it easier for you to write great code. If you hadn’t mounted your code in the host volume, you’d have to rebuild the container each time you wanted to test a change. In this example, we’ve shown you how you can use a host volume and nodemon to automatically sync your code between your laptop and your container. To illustrate this, we’ll use a Node.js example: Node-todo, a simple to-do application created by scotch.io. But if you mount your code as a host volume, you can configure that container to sync code changes as you make them. Without this approach, every time you want to test your code, you have to rebuild the container it’s stored in. So if you use a host volume to mount code you’re working on into a container, any edits you make to your code on your laptop will automatically appear in the container. Host volumes sync file changes between a local host folder and a container folder. And that turns out to be super helpful in speeding up your development process. Host volumes allow you to mount a folder on your laptop into a container. In this article, we’re going to focus on a type of volume known as host volumes, which can be used to make it easier and faster to work with a container’s code. Others allow you to store data on an external file system, such as an NFS volume mount. Some of them are focused on making it easy to share data between containers on the same host. As a result, volumes make it easy to persist data even when containers die to and share data between containers and the host.ĭocker allows you to use a variety of methods to implement volumes. That’s because they are stored outside of a container. Unlike regular folders, volumes have a life-cycle independent of the containers in which they’re mounted. Volumes are a special type of folder that is accessible by a Docker container. In this post, I’ll give you a brief overview of what is a Docker volume, how Docker host volumes work, and show you a tutorial and example of how you can use volumes and nodemon to make coding with Docker easier and faster. But what many developers don’t realize is that volumes can also be an excellent tool for speeding up your development workflow. If you are a developer who uses Docker, odds are you may have heard that you can use volumes to maintain persistent state for your containers in production.