Titlebook: Linux Containers and Virtualization; A Kernel Perspective Shashank Mohan Jain Book 20201st edition Shashank Mohan Jain 2020 Docker.Hypervis

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整理

https://doi.org/10.1007/978-1-4842-6283-2Docker; Hypervisors; Kernel Virtual machine (KVM); Quick Emulator (QEMU); Namespace; Cgroups; File systems

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Hypervisors,ine). The KVM uses the Intel . extension instruction set to isolate resources at the hardware level. Since the QEMU is a user space process, the kernel treats it like other processes from a scheduling perspective.

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Shashank Mohan JainGives a thorough insight into the world of virtualization and how it is realized within Linux.Explains the data structures within the Linux kernel that relate to containers.Teaches how to create a Doc

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Exposition

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Namespaces,Today, containers are the de facto cloud software provision mechanism. They provide fast spin-up times and have less overhead than a virtual machine. There are certain specific reasons behind these features.

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Cgroups,We learned about namespaces so we could restrict the visibility of resources for processes, which we did by putting the processes in separate namespaces. We also covered the data structures involved in the kernel, to get an understanding of how a namespace is realized within the Linux kernel.

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Creating a Simple Container Framework,Since we have covered the basics of what constitutes a container, it is time to look at how to write your own simple container. By end of this chapter, you will have created your own simple container using namespace isolation.