Table of Contents

Introduction

Containers offer a logical packaging mechanism in which applications can be abstracted from the environment in which they run. Containers are often compared with virtual machines (VMs).  a guest operating system such as Linux or Windows runs on top of a host operating system with virtual access to the underlying hardware. Like virtual machines, containers allow to package your application together with libraries and other dependencies, providing isolated environments for running your software services.

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Why Containers?

• Instead of virtualizing the hardware stack, containers virtualize at the operating system level, with multiple containers running atop the OS kernel directly which means containers are more lightweight: they share the OS kernel, start much faster, and use a fraction of the memory compared to booting an entire OS.
• Container consists of an entire run-time environment: an application, plus all its dependencies, libraries and other binaries, and configuration files needed to run it, bundled into one package. By containerizing the application platform and its dependencies, differences in OS distributions and underlying infrastructure are abstracted away.

Advantages of Containers

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• Raspberry Pi Official 7" lcd screen display will be working . The 7" touch screen monitor for Raspberry Pi gives users the ability to create all-in-one, integrated projects such as tablets, infotainment systems and embedded projects. 

• The 800x480 display connects via an adapter board which handles power and signal conversion. 

•  We can plug keyboard and mouse to the raspberrypi for the userinteraction. 

• Screen resolution 800 x 480 pixels Connects to the Raspberry Pi board using a ribbon cable connected to the DSI port. 

• Adapter board is used to power the display and convert the parallel signals from the display to the serial (DSI) port on the Raspberry Pi. 

• The display works with all existing Raspberry Pi models with RDK images

• A container may be only tens of megabytes in size, whereas a virtual machine with its own entire operating system may be several gigabytes in size.
• Containerization allows for greater modularity. Rather than run an entire complex application inside a single container, the application can be split in to modules

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Implementation details

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  Containers layer - meta-rdk-containers:    

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