(A) the global cloud computing technology development hot spots Container technology to help cloud computing development Docker technology rapid iteration. January 2014 Docker1.0 version officially released, its predecessor is an open source project DotCloud. Use Linux and core tools to support isolation between containers. Docker iteration speed is very fast, in November 2015 Docker officially released version 1.9, which includes the official swarm and multi-homed host connectivity for the product, adds a new volume management system for the Docker engine, and modified compose to make it Better support for multiple environments. November 2015 DockerEurope2015 Held in Barcelona, ​​Spain, Docker announced three major enhancements to container security in the Docker platform: Hardware Signing with Yubikey, Security Scanning of DockerHub Images, and Support for User Namespaces. A recent survey shows that 69% of companies will use containers in the next year's production environment. Containers have gradually become one of the mainstream cloud computing technologies. In 2014, the OpenStack community decided to begin supporting container and third-party container proponents to create a diverse mix of technologies that Openstack named the technology as the "container editing engine." VMware has announced that it will support containers, emphasizing the virtual machine as a media deployment container that complements container security and management controls. Redhat integrates Docker into its own operating system, RHEL Kernel Docker with KVM and RHEL7AtomicHOST Container Virtualization System. Atomic defines Redhat Certified Docker Host, Container Meta, Container Development Kit and so on aimed at the original security concern Docker, Credentials from all levels of the overall architecture. In the fall of 2014, Amazon officially launched Flexible Container Services. ECS will be responsible for extending the container after AWS customers start the container, improving cloud portability and reducing costs. Container technology to promote automated operation and maintenance. The most crucial part of operation and maintenance automation is the definition of operating environment. Docker helps developers to easily achieve a consistent development environment and production environment, which means directory, path, configuration file, the method of storing user name and password, access rights, domain names and other details of the consistency of all the differences and standardization of processing, Docker can be simple Realize the standardization of the environment on different machines. 2. More efficient Unikernel technology draws attention According to the X86 architecture, whether it is a traditional virtual machine or a newly emerged Container technology, the user application still runs in a "user mode". Access to and operation of the hardware still needs to be performed by using an operating system running in a "kernel mode" , So the application of access to the hardware resources need to go through the user-to-kernel state context switching between the loss of a certain performance. In recent years, Libos-based Unikernel technology has received some attention. Unikernel runs all the applications and their runtime dependencies in a "kernel state," which runs entirely in X86CPU's privileged mode (Ring0), completely eliminating the traditional operating system and accessing the hardware entirely by the Hypervisor layer . Its advantages are: (1) Better Security: The attack interface is smaller and less likely to be attacked than the traditional operating system. (2) Smaller volumes: Unikernel instances are only about 4% the size of traditional VMs because they do not require full operating system support. (3) shorter boot time: no operating system loading process, start-up time is shorter. Mini Handheld Vacuum Sealer,Handheld Vacuum Sealer,Vacuum Sealer Machine,Food Saver Vacuum Sealer Zhongshan Lianwei Electrical Technology Co., Ltd. , https://www.lwwaterpump.com