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Containers are the future of the Cloud
Containers are becoming increasingly popular as the future of cloud computing. The document discusses and compares several open source container virtualization platforms - KVM, Xen, OpenVZ, and LXC. It provides details on each platform such as the main developer, status, hardware support, virtualization type, and supported operating systems. OpenVZ is highlighted as being production ready since 2006, having extremely low overhead compared to Xen and KVM, and being widely used in projects like Docker.
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Containers are the future of the Cloud
- 1. Containers are thefuture of Cloud Pavel Odintsov CTO, FastVPS Eesti OU odintsov@fastvps.ee
- 2. Open source virtualizationplatforms
- 3. KVM Main developer: RedHat Kernelintegration state: in kernel since 2007 Status: production ready Hardware support: same as Linux Virtualization type: full virtualization Supported client OS: Linux, FreeBSD, Windows
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- 5. Xen Main developer: Citrix,XenSource Kernel integration state: partially in kernel since 2012 (client), no plans about the server Status: production ready Hardware support: only fixed number of hardware, see HCL Virtualization type: full virtualization, paravirtualization Supported client OS: Linux, FreeBSD, Windows
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- 7. OpenVZ Main developer: Parallels(ex. SwSoft) Kernel integration state: partially in kernel and work in progress Status: production ready Hardware support: same as Linux Virtualization type: os level virtualization, containerization Supported client OS: Linux
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- 9. LinuX Containers, LXC Maindeveloper: same as kernel (Intel, IBM, Parallels) Kernel integration state: partially in kernel and work in progress Status: not ready for production (issues in network, disk) Hardware support: same as Linux Virtualization type: os level virtualization, containerization Supported client OS: Linux
- 10. LinuX Containers, LXCarchitecture
- 11. Why OpenVZ? • Productionready since 2006 • Extremely low overhead (in compare with Xen/KVM is about 20%) • Simple integration into Linux stack • Many successful projects (LXC): Heorku, CloudLinux, Docker (dot.cloud)
- 12. KVM vs OpenVZvs Xen LAMP
- 13. KVM vs OpenVZvs Xen Web App
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- 15. OpenVZ requirements • Almostany physical server (yes, you can use old notebook) • Operation system: CentOS 6, RHEL 6 or Scientific Linux 6 • One external or internal IP address • Internet connection (only for downloading packages and templates) • One hour of free time
- 16. OpenVZ, server resources Serverresources: • RAM • HDD • CPU • Network
- 17. OpenVZ deployment echo "SELINUX=disabled"> /etc/sysconfig/selinux wget -P /etc/yum.repos.d/ http://ftp.openvz.org/openvz.repo yum install -y vzkernel yum install -y vzctl vzquota ploop shutdown –r now yum remove kernel -y
- 18. OpenVZ – containercreating vzctl create 101 --ostemplate debian-6.0-x86_64 --layout ploop --ipadd 88.198.144.251 --hostname mytesthostname.ru --config vswap-2g --diskspace 10G vzctl set 101 --onboot yes --ram 4G --swap 1G -- diskspace 20G --save vzctl start 101 vzctl set 101 --userpasswd root:openvz_2013
- 19. OpenVZ – additionaltools • vzctl destroy – remove container with all data • vzctl stop – container stop • vzlist –a – list of all available containers on host
- 20. OpenVZ information • http://openvz.org •http://twitter.com/_openvz_ • http://bugzilla.openvz.org • http://openvz.livejournal.com • http://git.openvz.org
- 21. Thank you! :) PavelOdintsov CTO, FastVPS Eesti OU odintsov@fastvps.ee