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What ARE Containers? (and Docker ...)
Let's look at what really IS a container, what makes it work and where Docker fits into all of this!
Let's look at what really IS a container, what makes it work and where Docker fits into all of this!
Containers are a way to package up code and all its dependencies so that the application runs quickly and reliably from one computing environment to another. This means that you can develop your application on your laptop, deploy it to a server, and have it run in the same way.
Docker is a popular open-source containerization platform that enables developers to create, deploy, and run applications in a container. It is a platform-agnostic tool that allows developers to package applications in lightweight containers and run them on any platform. With Docker, developers can quickly and easily deploy their applications to any environment. Additionally, Docker’s features make it easier to scale applications across multiple servers and reduce the time it takes to deploy an application.
In this Video
- 00:00 - Introduction
- 00:35 - Challenges without containers
- 05:27 - Virtual machines
- 11:05 - Changes to needs
- 11:51 - Container overview
- 14:44 - What containers need?
- 17:49 - Environment overview
- 26:40 - Controlling resource - cgroups
- 36:05 - Visibility - namespaces
- 47:34 - Filesystems - union filesystem
- 1:21:32 - Container runtimes
- 1:24:13 - ContainerD
- 1:28:04 - RunC
- 1:36:18 - Docker
- 1:39:42 - Summary
▬▬▬▬▬▬ K E Y L I N K S 🔗 ▬▬▬▬▬▬
► Whiteboard:
[https://github.com/johnthebrit/RandomStuff/raw/master/Whiteboards/WhatAREcontainers.png]
► My demo script:
[https://github.com/johnthebrit/RandomStuff/raw/master/Docker/Examples.sh]
More links on about Azure/Azure Weekly Update
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