If you try to run a Docker container which you have not installed locally then Docker will automatically search for the container on Docker Hub (an online repository for docker images) and download it if it exists.*
DOCKER FOR MAC CONTAINER LOCATION HOW TO
Later we will show you how to save your container if you want to do so. This can lead to the eventual wastage of a lot of disk space until we manually remove these containers. If we did not do this, everytime we run a container, a version of it will be saved to our local computer. Finally, –rm ensures that when we quit the container, the container is deleted. p tells Docker that you will be using a port to see RStudio in your web browser (at a location which we specify afterwards as port 8787:8787).
Optional: * p and -rm are flags that allow you to customize how you run the container.
Next, we will ask Docker to run an image that already exists, we will use the verse Docker image from Rocker which will allow us to run RStudio inside the container and has many useful R packages already installed. Is the docker daemon running on this host? at some point in the tutorial, running the following command might fix your problem: eval "$(docker-machine env default)" Especially if you get the error Cannot connect to the Docker daemon. On a Mac you can also go to your terminal of choice and configure it for Docker usage. If you’re on a linux machine, then you can use a plain old terminal prompt.
If you’re on Mac or Windows, in the last step you installed something called the Docker Quickstart Terminal open that up now - it should look like a plain shell prompt ( ~$), but really it’s pointing at a linux virtual machine that Docker likes to run in, and this is where you should do everything for the rest of this tutorial unless otherwise noted. The first thing we need to do to launch Docker is to open a Unix Shell.
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