Docker Ubuntu Example

Docker also allows us to install any operating system in isolated container. Here, in the following example, we are installing Ubuntu in Docker.

1. Create a directory to organize files.
$ mkdir ubuntu-in-docker
2. Change the directory
$ cd ubuntu-in-docker
3. Create Dockerfile

In the file, we are using only one instruction that will pull the Ubuntu image from Docker hub.

// Dockerfile

FROM ubuntu
4. Create a Docker Image
$ docker build -t ubuntu-in-doker .
5. Run Docker Image

The image, we have created is run by the following command.

$ docker run -td ubuntu-os
6. See Running Container

This command is used to see the all running Docker container.

$ docker ps -a
7. Enter into Docker Container

We can enter into the running container and can check the files and application inside the container.

$ docker exec -it a2e21af03a95 bash
8. See Ubuntu OS Directory Structure

After entering into

9. Executing Commands
$ apt-get update