docker run -it -rm -v $HOME/Desktop/scripts:/scripts -name scripts ruby bash This is the best practice because you don’t have to worry about environment management on different machines. Now you’re going to mount the scripts folder inside the scripts folder of the container. To mount a volume, just run this line in your terminal docker run -v /host/directory:/container/directory Once downloaded on your local machine, Docker uses the same image for consecutive container creation.
If the ruby image does not exist on the host machine, Docker will pull that from Docker Hub. Here we are using the ruby image to create the container, but you can use your own image. The docker run command is used to run a container from an image. Docker Container: A Container is the running instance of an image.Docker Image: It’s a template containing instructions to create containers.For demonstration purposes, we will use the pre-built official image of Ruby and macOS. I use Docker almost every day for local development - for example, you can see how I dockerized a Ruby on Rails application for a personal project, here.įirst, you will need to install Docker.
Kubernetes docker for mac mount filesystem how to#
From this post, you’ll learn some basic concepts and commands of Docker that will teach you how to mount a directory inside a Docker container.
Now you can use that image to create a container to run your application on different machines or even on the cloud platforms ( AWS, GCP, Azure, etc.) without worrying about environment management (development, testing, and production).ĭocke r is one of the popular tools for DevOps for its portability, security, and performance. A Docker container is a package of a Base OS ( alpine, ubuntu, etc.) and other necessary software dependencies, which you can define inside a docker image. It allows us to run an application from a Docker image on any computer by using containerization technology. It works on my machine, let’s ship your machine then! That’s Docker in a nutshell.
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