best docker book

by Falcon of tinylab.orgTai Xiao Salon Phase II @ 2015/04/26Preparing Gitbook environment to install Docker Take Ubuntu as an example$ echo deb http://get.docker.io/ubuntu docker main | sudo tee /etc/apt/sources.list.d/docker.list$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9$ sudo apt-get update$ sudo apt-get install -y lxc-

. For example, if you want to modify a file, the file is copied from the read-only layer below the read-write layer to the read-write layer. The read-only version of the file still exists, but it has been hidden by a copy of the file in the read-write layer. This mechanism is copied as a write-time.Docker Images #查看所有的docker镜像The local image is saved under/var/lib/docker, and all the containers are stored i

during the first write, that is, when the resource is modified. This sharing of resources can significantly reduce the consumption of unmodified resource replication, but will also increase the cost of small portions when making resource modifications.In a classic example, Knoppix, a Linux distribution for Linux demos, CD-ROM tutorials, and commercial product demos, is to put a CD-ROM or DVD and one that exists in a writable device (eg, USB flash drive) on the file system called Knoppix.img tog

write operation, which is when the resource is modified. This resource-sharing approach can significantly reduce the consumption of unmodified resource replication, but will also add and subtract a small amount of overhead when resource modifications are made.With a classic example, Knoppix, a Linux distribution for Linux demos, CD-ROM teaching, and commercial product demonstrations, is to put a CD-ROM or DVD and a presence in a writable device (eg, U disk) on the file system called Knoppix.img

. Depending on the system call parameters, which type of namespace is created, and their subprocess is also included in namespace Unshare ()-Moves the process out of a namespace setns ()-Joins the process into the NAMESP UTS Namespace UTS namespace mainly isolates nodename and domainname two system identities. Inside the UTS namespace, each namespace is allowed to have its own hostname. Below we will use go to do a UTS Namespace example. In fact for Namespace this kind of system call, uses the

Introduction to Linux cgroups Above is the namespace technology for building Linux containers, which helps isolate the process from its own space, but how Docker limits the size of each space to ensure they don't scramble with each other. Then you need to use the Cgroups technology of Linux. Concept The Linux cgroups (Control Groups) provides the resources for a set of processes and future child processes, including CPU, memory, storage, network, etc

1 Background 1.1 Docker introductionDocker is a container engine project based on lightweight virtualization technology from Docker, the entire project is based on the go language and complies with the Apache 2.0 protocol. Today, Docker can quickly automate deployment of applications within the container, and can provide container resource isolation and security

Docker intranet: Docker-registry with Nginx SSL on CentOSSince Docker-registry is also a software application, the easiest way to do this is to use the officially provided image registry that has been deployed. The official documentation also gives suggestions for running sudo docker run -p 5000:5000 registry commands

Docker installation and sharing of common commands and sharing of common docker commands Basic commands 1. To install docker in yum, the root permission is required. Yum install docker 2. Start docker Systemctl start docker. servi

Docker Quick Start-common docker commands 1. Introduction to docker commands 1. Introduction to docker commands You can run the sudo docker or sudo docker HELP command to view the docker