Chapter 8. Cloud computing Overview for engineering
- 1. 1 Introduction to base platform for BKPACCloud
- 2. Agenda • • • • • What is base platform for BKPACCloud ? What is a cloud workload ? BKPACCloud Architecture BKPACCloud incubating projects Distributions
- 3. OpenStack is base platform for BKPACCloud Public or Private Cloud Cloud workload
- 4. BKPACCloud is ... Self Service APIs Web Dashboard
- 5. BKPACCloud is ... Building blocks
- 6. BKPACCloud is ... Illusion of Infinite Capacity
- 7. BKPACCloud is ... Massive Scale
- 10. 1 What is a cloud workload ?
- 11. SERVICE MODELS / WORKLOADS TRADITIONAL WORKLOADS ● Stateful VMs, application defined in VM ● Big VMs: vCPU, vRAM, local storage inside VM ● Application SLA = SLA of VM ● SLA requires enterprise virtualization features to keep VMs highly available ● Lifecycle measured in years ● VMs scale up: add vCPU, vRAM, etc. ● Applications not designed to tolerate failure of VMs ● ● ● ● ● ● ● CLOUD WORKLOADS Stateless VMs, application distributed Small VMs: vCPU, vRAM, storage separate Application SLA not dependent on any one VM SLA requires ability to create and destroy VMs where needed Lifecycle measured in hours to months Applications scale out: add more VMs Applications designed to tolerate failure of VMs
- 12. SERVICE MODELS / WORKLOADS TRADITIONAL WORKLOADS CLOUD WORKLOADS • • • Pets are unique, lovingly hand raised and cared for They are given names When they get ill you nurse them back to health • • • Cattle are almost identical to each other They are given numbers When they get ill you get another one Credit : Bill Baker @ Microsoft & Tim Bell @
- 13. RED HAT UPSTREAM FOCUS • • • • Heavily engaged in community since 2011 – Established leadership position in community – Both in terms of governance and technology – Including Project Technical Leads on Nova, Keystone, Oslo, Heat and Ceilometer – Creating and leading stable tree 3rd largest contributor to Essex Release 2nd largest contributor to Folsom Release Largest contributor to Grizzly Release – Note: These statistics do not include external dependencies eg. libvirt, kvm, Linux components
- 15. 1 Architecture
- 16. ARCHITECTURE • • • Modular architecture Designed to easily scale out Based on (growing) set of core services Neutron
- 17. ARCHITECTURE Keystone – – – – Identity Service Common authorization framework Manages users, tenants and roles Pluggable backends (SQL, PAM, LDAP, IDM, etc)
- 18. ARCHITECTURE NOVA – Core compute service comprised of • Compute Nodes – hypervisors that run virtual machines – Supports multiple hypervisors KVM, Xen, LXC, Hyper-V and ESX • Distributed controllers that handle scheduling, API calls, etc – Native OpenStack API and Amazon EC2 compatible API
- 19. ARCHITECTURE Glance – – – – Image service Stores and retrieves disk images (virtual machine templates) Supports Raw, QCOW, VMDK, VHD, ISO, OVF & AMI/AKI Backend storage : Filesystem, Swift, Gluster, Amazon S3
- 20. ARCHITECTURE Swift – – – – Object Storage service Modeled after Amazon's S3 service Provides simple service for storing and retrieving arbitrary data Native API and S3 compatible API
- 21. ARCHITECTURE Neutron – – – Network Service Provides framework for Software Defined Network (SDN) Plugin architecture • Allows integration of hardware and software based network solutions – Open vSwitch, Cicso UCS, Standard Linux Bridge, Nicira NVP Neutron
- 22. ARCHITECTURE Cinder – – – – Block Storage (Volume) Service Provides block storage for virtual machines (persistent disks) Similar to Amazon EBS service Plugin architecture for vendor extensions eg. NetApp driver for Cinder
- 23. ARCHITECTURE Horizon – – – Dashboard Provides simple self service UI for end-users Basic cloud administrator functions • Define users, tenants and quotas • No infrastructure management
- 24. Spin me up a VM! And make it LARGE! Umm, Do I know you? I need to see some papers!! Keystone Ok, we need to find a place to build this VM. Nova Tag - you’re it! capacity capacity VM capacity Papers are good. Time to get to work! Nova Node Neutron, I need a network with all the trimmings! Neutron Cinder, have that volume ready for me? Node Here’s your IP, default route and FW settings. Indeed I do. Don’t forget to mount it! Swift Glance Hey Glance, can I get the RHEL 6.4 image? Node 8 ) Let’s Follow a Request.. Thank you OpenStac k!! 8 ) It’s renderi ng time!
- 25. INCUBATING PROJECTS Orchestration (HEAT) ● ● ● ● Provides template driven cloud application orchestration Modeled after AWS CloudFormation Targeted to provide advanced functionality such as high availability and autoscaling Introduced by Graduated from Incubation to Integrated status for the Havana release
- 26. INCUBATING PROJECTS Monitoring and Metering (CEILOMETER) ● ● Goal: To provide a single infrastructure to collect measurements from an entire OpenStack infrastructure; eliminate need for multiple agents attaching to multiple OpenStack projects Primary targets metering and monitoring; provides extensibility Graduated from Incubation to Integrated status for the Havana release
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