I hope you haven’t missed the series of earlier Docker Tutorial blogs, in case you have missed,
Docker Tutorial to go through it. Now this time I shall take you through the Docker Tutorial on Introduction To Docker.
About Course :
Docker is an open platform for system admins and developers to run build and ship shared applications. Consisting of lightweight runtime, Docker Engine, a portable and Docker Hub, Docker Engine and packaging tool, a cloud service for sharing automating workflows and applications. Docker facilitates apps to be quickly massed from components and eliminates the granting between QA, production environments and development. As a result, IT can fast transfer and run the unchanged, any cloud, same app and data center VMs.
The Docker Engine container involves its dependencies and applications. It runs as an unusual process in user space on the host allocation the kernel and operating system with other storage. Thus, it enjoys the resource allocation and isolation use of VMs still is much more efficient and portable.
Docker Course objectives :
Understand the components of the Docker platform
Control the Docker daemon
Configure security and TLS
Understand the concept of containers and images
Run and manage Docker containers using existing images
Build custom images from a container
Build custom images from a Dockerfile
Enable Docker Content Trust
Push and pull images to DockerHub
Set up a registry and understand the Docker Trusted Registry
Host private registries
Comprehend Networking, Security and Docker API’s
Configure a bridge network and run containers on that network
Understand the concept of Docker volumes
Configure and mount volumes to containers
Deploy, Service Discovery and Orchestration tools for Docker
Work with Docker Remote API
Set up Continuous Integration with Docker
Manage a cluster of containers
Understand how to setup a basic CI/CD build in Docker Hub
Create a Docker :
The docker project offers higher-level tools, working together, which are built on top of some Linux kernel features. The goal is to help developers and system administrators port applications – with all of their dependencies conjointly – and get them running across systems and machines.
Docker achieves this by creating safe, LXC (i.e. Linux Containers) based environments for applications called docker containers. These containers are created using docker images, which can be built either by executing commands manually or automatically through Dockerfiles.
Sign up for an account
Use your browser to navigate to the Docker Hub signup page.
Your browser displays the page.
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Fill out the form on the signup page.
Docker Hub is free. Docker does need a name, password, and email address.
Press Signup.
The browser displays the welcome to Docker Hub page.
Inclined to build a profession as Docker Developer? Then here is the blog post on Docker Training
Verify your email and add a repository
Open your email inbox.
Look for the email titled Please confirm email for your Docker Hub account.
If you don’t see the email, check your Spam folder or wait a moment for the email to arrive.
Open the email and click the Confirm Your Email button.
The browser opens Docker Hub to your profile page.
Choose Create Repository.
The browser opens the Create Repository page.
Provide a Repository Name and Short Description.
Make sure Visibility is set to Public.
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Docker Index :
The command line utility has pre-build commands for interacting with the internal API endpoints of the Docker Index. Endpoints for managing user access levels for various namespaces and repos, this is a critical component in managing your private registry/index.
The Docker Index is available at https://github.com/ekristen/docker-index.git, it is also a trusted build available by using docker pull ekristen/docker-index (https://index.docker.io/u/ekristen/docker-index/)
Requirements :
Docker Index (https://github.com/ekristen/docker-index.git)
This is currently the tool to manage the https://github.com/ekristen/docker-index project. This tool requires that you have a .dockercfg file as it is used to determine which indexes you have configured and it uses the username and password combination to authenticate to the docker-index management API urls.
Installation :
From NPM Registry (Preferred)
npm install -g docker-index-cli
From Git
npm install -g ekristen/docker-index-cli
Commands
listUsers
This will return a list of users that are in the index database. These users will have various levels of access to namespaces and repositories.
Usage: docker-index listUsers <index>
getUser
This will return basic information about a user including whether or not the account is disabled and all their permissions.
- Here we provide you some of the important concepts to be covered by our trainers, that will reflect in your Interview. Advanced Docker Interview Questions with answers by our experts will give you a glance of what the course is all about.
This is the end of the first blog of – The Docker Tutorial Series.
To know more on Docker Stages, Click to visit the second blog – How to Build and Deploy in Docker
Now that you have understood what is Docker, check out the Docker training by Tekslate, a trusted online learning company with a network of more than 250,000 satisfied learners spread across the globe. The Tekslate Docker Certification Training course helps learners gain expertise in various Docker processes and tools.
Got a question for us? Please mention it in the comments section and we will get back to you.
Docker interview questions
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