Docker: Installation and Basic usage on Ubuntu 16. In 5 minutes you can docker up & running pdf a mobile app connected to your OpenID, OAuth2 or SAML mobile authentication providers.
Docker is an open-source project that provides an open platform for developers and sysadmins to build, package, and run applications anywhere as a lightweight container. Docker automates the deployment of applications inside software containers. Docker requires a 64-bit architecture for installation and Linux Kernel must be 3. Things to know about Docker Here the basic terms in the docker world that you should know. Docker Images A Docker image is the basic template for a Docker container.
An image usually contains the OS and applications that readily installed. Docker Container Docker Container is an image which can be read and written to that runs on top of the Docker image. Docker is using the union-file-system as backend for the container, any changes that are made in the container will be saved in a new layer above the base image. The container is the layer where we install applications in. Each container that runs isolated in the host machine and therefore, provides a secure application platform. Docker Registry Docker registry is a repository for Docker images.
If no tag is submitted, the command shows that the Ubuntu version is 16. If you specified; conclusion Docker is an open source container virtualization platform which helps developers to deploy their applications and system administrators to manage applications in a safe virtual container environment. If this volume does not exist, container applications on multiple hosts. This command will show you all ubuntu images.
It provides public and private repositories. The public Docker registry is called the Docker Hub. Here we can push and pull our own images. 04 In this section, you will be guided to install docker. Before you install the software, check the kernel version and the OS architecture.
The next commands have to be run as root user. Run this command to become root on your Ubuntu system. You can see that I`m using the kernel version is 4. The command shows that the Ubuntu version is 16.
It is recommended to update Ubuntu before you install new software. Run the following command to fetch the latest updates from the Ubuntu repository and install them. Now docker is installed in your system. You can start making a container by downloading a Docker Image from the Docker Registry. Basic Usage of Docker In this section, I will show you commonly used options of the docker command. To create a new container, you should start by choosing a base image with the OS, e.
This command will show you all ubuntu images. The next step is to create a container from that image. This command will create and run a container based in ubuntu 16. The container will stop when you leave it with the command exit. How can I access the shell of container that runs in the background mode?