Docker Architecture | Docker Engine Components | Container Lifecycle

Do you know that Docker is the best Container Management Software and big organizations are looking for Docker & Kubernetes Administrators? Candidates with hands-on experience on Docker often land up in highly paid jobs.

Docker Architecture, its Components & Container Lifecycle are the concepts you should understand first in order to start your journey to become a Docker Expert.

Check out the amazing second part of K21Academy’s 5-Part Video Series that covers:
➜ Docker Architecture & Components
➜ Resources Isolation In Container (Docker)
➜ Docker Engine Components
➜ Docker Networking & Storage
➜ Container Lifecycle

#docker #dockerarchitecture #dockercomponents #container #kubernetes #k21academy

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Docker Architecture Overview & Docker Components [For Beginners]

If you have recently come across the world of containers, it’s probably not a bad idea to understand the underlying elements that work together to offer containerisation benefits. But before that, there’s a question that you may ask. What problem do containers solve?

After building an application in a typical development lifecycle, the developer sends it to the tester for testing purposes. However, since the development and testing environments are different, the code fails to work.

Now, predominantly, there are two solutions to this – either you use a Virtual Machine or a containerised environment such as Docker. In the good old times, organisations used to deploy VMs for running multiple applications.

So, why did they started adopting containerisation over VMs? In this article, we will provide detailed explanations of all such questions.

#docker containers #docker engine #docker #docker architecture

Docker Explained: Docker Architecture | Docker Registries

Following the second video about Docker basics, in this video, I explain Docker architecture and explain the different building blocks of the docker engine; docker client, API, Docker Daemon. I also explain what a docker registry is and I finish the video with a demo explaining and illustrating how to use Docker hub

In this video lesson you will learn:

• What is Docker Host
• What is Docker Engine
• Learn about Docker Architecture
• Learn about Docker client and Docker Daemon
• Docker Hub and Registries
• Simple demo to understand using images from registries

#docker #docker hub #docker host #docker engine #docker architecture #api

Docker Architecture | Docker Engine Components | Container Lifecycle

Do you know that Docker is the best Container Management Software and big organizations are looking for Docker & Kubernetes Administrators? Candidates with hands-on experience on Docker often land up in highly paid jobs.

Docker Architecture, its Components & Container Lifecycle are the concepts you should understand first in order to start your journey to become a Docker Expert.

Check out the amazing second part of K21Academy’s 5-Part Video Series that covers:
➜ Docker Architecture & Components
➜ Resources Isolation In Container (Docker)
➜ Docker Engine Components
➜ Docker Networking & Storage
➜ Container Lifecycle

#docker #dockerarchitecture #dockercomponents #container #kubernetes #k21academy

What is Docker Container? Function, Components, Benefits & Evolution

‘Docker‘ is a Platform set as a Service (PaaS) product intended to deliver software in the form of packages, which are termed as containers. It uses OS-level virtualization standards, wherein the kernel allows multiple instances of isolated user-space such as containers, partitions, zones, virtual kernels, etc.

These behave as real computers simulating the way programs are run in them. On a regular operating system, we see the resources the computer program is running. In containers, we can only see the contents and the devices allocated to the container when the programs are run in it.

For several developers in the industry today, Docker is the accepted standard for developing and sharing containerized apps, across the desktop and the cloud. Containers are a standardized unit of software. Developers use it to isolate an app from its environment. Due to their lightweight characteristics, several docker containers (typically above eight containers per host) can be run on a single server or VM, simultaneously.

#docker #docker architecture #docker container

Ever Wondered Why We Use Containers In DevOps?

At some point we’ve all said the words, “But it works on my machine.” It usually happens during testing or when you’re trying to get a new project set up. Sometimes it happens when you pull down changes from an updated branch.

Every machine has different underlying states depending on the operating system, other installed programs, and permissions. Getting a project to run locally could take hours or even days because of weird system issues.

The worst part is that this can also happen in production. If the server is configured differently than what you’re running locally, your changes might not work as you expect and cause problems for users. There’s a way around all of these common issues using containers.

What is a container

A container is a piece of software that packages code and its dependencies so that the application can run in any computing environment. They basically create a little unit that you can put on any operating system and reliably and consistently run the application. You don’t have to worry about any of those underlying system issues creeping in later.

Although containers were already used in Linux for years, they became more popular in recent years. Most of the time when people are talking about containers, they’re referring to Docker containers. These containers are built from images that include all of the dependencies needed to run an application.

When you think of containers, virtual machines might also come to mind. They are very similar, but the big difference is that containers virtualize the operating system instead of the hardware. That’s what makes them so easy to run on all of the operating systems consistently.

What containers have to do with DevOps

Since we know how odd happenings occur when you move code from one computing environment to another, this is also a common issue with moving code to the different environments in our DevOps process. You don’t want to have to deal with system differences between staging and production. That would require more work than it should.

Once you have an artifact built, you should be able to use it in any environment from local to production. That’s the reason we use containers in DevOps. It’s also invaluable when you’re working with microservices. Docker containers used with something like Kubernetes will make it easier for you to handle larger systems with more moving pieces.

#devops #containers #containers-devops #devops-containers #devops-tools #devops-docker #docker #docker-image