1 Introduction at CloudStack Developer Day
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Apache CloudStack is open source software for building public, private and hybrid Infrastructure as a Service (IaaS) clouds, it allows users to provision virtual servers, storage and networking resources through a web interface and provides APIs for management and integration with other systems, and it supports various hypervisors including KVM, Xen, VMware and Oracle VM VirtualBox as well as storage systems like iSCSI, NFS and object storage.
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1 Introduction at CloudStack Developer Day
- 1. Apache CloudStack Alex Huang Architect, Cloud Platforms Group, Citrix Systems Inc. Co-founded VMOps (Cloud.Com) Software architect for CloudStack. Responsible for CloudStack’s overall architecture, performance, and scalability. Currently a committer and PPMC member on Apache for CloudStack. MS from Stanford and BS in Computer Science from Berkeley.
- 2. Apache CloudStack (Incubating) An Introduction Alex Huang Apache CloudStack Committer
- 3. Use CloudStack to build IaaS clouds (like EC2) • Create VMs, disks • Java based networks, network services • Scalable • Self service • Many vendor integrations • Meter usage • Native and EC2 API
- 4. How did Amazon build EC2? Amazon eCommerce Platform AWS API (EC2, S3, …) Amazon Orchestration Software Open Source Xen Hypervisor Commodity Commodity Networking Servers Storage
- 5. How can you build your cloud? Amazon eCommerce Platform Your Portal (Optional) AWS API (EC2, S3, …) CloudStack or AWS API CloudStack Orchestration Software Amazon Orchestration Software ESXi, KVM, XenServer/XCP, OVM Open Source Xen Hypervisor Networking Servers Storage
- 6. Project history • 2008/2009: closed-source development • First deployments in late 2009 • May 2010: ~98% open source as GPLv3 (open core) • August 2011: 100% open source GPLv3 • April 2012: Switch to Apache License v2 • Submit code to Apache Software Foundation
- 7. Project current state • In incubation within Apache Software Foundation • 4.0 released! • Bugs and wiki moved to ASF infra • Mailing list traffic moved to ASF infra • Many non-Citrix contributors, committers, and PPMC members
- 8. Yes, the ASF is great Enter ASF
- 10. Virtualization alone does not make a cloud Server Virtualization Cloud Built for traditional enterprise Designed around big data, apps & client-server compute massive scale & next-gen apps • Scale-up (pool-based resourcing) • Scale-out (horizontal resourcing) • IT management-centric • Autonomic management • 1 administrator for 100’s of servers • 1 administrator for 1,000’s of servers • Proprietary vendor stack • Open, value-added stack
- 11. Clouds must reliably run all types of workloads Traditional Workload Cloud Workload Expect reliability Design for failure Back-up everything Ephemeral resources HA, Fault tolerance Multi-site redundancy Admin control recovery Self-service recovery Think Server Virtualization Think Amazon Web Services
- 12. Embrace traditional and extend to Cloud-era Cloud-era Workloads Traditional Workloads CloudStack Mgmt Server Traditional Zone vSphere Enterprise Networking (e.g., VLAN) Cloud-era Cloud-era Cloud-era Availability Availability Availability Zone Zone Zone ESXi ESXi ESXi Cluster Cluster Cluster Object Storage Enterprise Storage (e.g., SAN)
- 13. Apache CloudStack Management Server Traditional Traditional Cloud-era Traditional Cloud-era Availability Availability Availability Availability Availability Zone Zone Zone Zone Zone
- 14. Deployment and Software Architecture
- 15. • Single Management Server can Data Center 1 Data Center 2 manage multiple zones Data Center 2 Management Data Center 3 Servers Zone 2 • Zones can be geographically Zone 2 distributed but low latency links Zone 3 are expected for better Zone1 Zone 4 3 Zone performance • Single MS node can manage up to Data Center 2 Data Center 2 10K hosts. Data Center 2 Zone 2 Zone 2 • Multiple MS nodes can be Zone 2 Zone 3 deployed as cluster for scale or Zone 3 redundancy Zone 3
- 16. Standby Mgmt Cloud-era zone deployment Server Cluster Admin Internet Availability Zone 2 Primary Mgmt Server Cluster Primary Router MySQL Backup Load Balancer MySQL L3 Core Switch Top of Rack Switch Object Store Servers … … … … … Availability Zone 1 Pod 1 Pod 2 Pod 3 Pod N
- 17. Internet Traditional zone deployment Object Load Balancer Store Core Switch … Aggregation Switch TOR Switch Compute Nodes NFS Primary 10Gbps 1Gbps 10Gbps 1Gbps 10Gbps 1Gbps Storage Storage Guest Storage Guest Storage Guest & Mgmt & Mgmt & Mgmt Pod 1 Pod 2 Pod 200
- 19. Management Server XAPI HTTP vCenter Agent Agent XenServer KVM OVM XCP ESX • XS 5.6, 5.6FP1, 5.6 SP2, • ESX 4.1, 5.0 • RHEL 6.0, 6.1, 6.2, • OVM 2.2 6.0.2, XCP 1.1 • Full Snapshots Ubuntu 12.04 • No Snapshots • Incremental Snapshots • VMDK • Full Snapshots (not live) • RAW • VHD • NFS, iSCSI, FC & Local disk • QCOW2 • NFS & iSCSi • NFS, iSCSI, FC & Local disk • Storage over-provisioning: • NFS, iSCSI & FC • No storage over- • Storage over- NFS, iSCSI • Storage over- provisioning provisioning: NFS provisioning: NFS
- 20. Mgmt Server CPU Util. Seconds to deploy 25,000 …. to …. 30,000 VMs 0 …. to …. 30,000 VMs • Simulator developed to test massive scale • Four Management Servers can manage 30,000 hosts • Scale to hundreds of thousands of hosts possible with multiple management server clusters (regions)
- 21. Features
- 22. Compute Hypervisor XCP/XS VMware Oracle VM KVM Bare metal Storage Block & Object Fiber Object Local Disk iSCSI NFS Channel Stores Network Network & Network Services Network Load Isolation Firewall VPN Type balancer
- 23. Users Change VM Operations Console Access VM Status Service Offering Start • CPU Utilized 2 CPUs 4 CPUs Stop 1 GB RAM 4 GB RAM Restart • Network Read 20 GB 200 GB Destroy 20 Mbps 100 Mbps • Network Writes
- 24. Add / Delete VM 1 Volumes Volume Create Templates Volume Template from Volumes Schedule Now Hourly Weekly Snapshots Daily Monthly View Snapshot …. History 12/2/2012 7.30 am 2/2/2012 7.30 am
- 25. Specify Resource Levels Configure Properties Define Scope Compute Disk Network Name Name Name CPU Cores Custom Disk Size Network Rate CPU (MHz) Disk Size (GB) Redundant VR Memory (MB) Storage Tag Firewall Host Tag Storage Tag Load balancer Enable HA Public Public CPU Cap Public
- 26. Resources Domain VMs, IPs, Snapshots… • Domain is a unit of isolation that Org A represents a customer org, business Admin unit or a reseller Domain • Domain can have arbitrary levels of Reseller A sub-domains Admin Resources Sub-Domain Org C VMs, IPs, Snapshots… • A Domain can have one or more Admin accounts Account • An Account represents one or more Group A users and is the basic unit of Account isolation Group B • Admin can limit resources at the User 1 Account or Domain levels User 2
- 27. • Create Networks and attach VMs • Acquire public IP address for NAT & load balancing • Control traffic to VM using ingress and egress firewall rules • Set up rules to load balance traffic between VMs
- 28. Network offering • Provides cloud operator defined service features • Isolation • Load Balancing • VPN • Firewall • Supports Physical Devices • NetScaler • F5 BIG-IP Pod 1 Pod 1 Pod N • Juniper SRX Zone 1 Zone N
- 29. Network Services Managed Externally Network Services Managed by CS Public Network 65.11.0.0/16Security Security Group 1 Public Group 1 65.11.1.2 Guest Network/Internet 65.11.1.2 Guest VM 1 VM 1 65.11.1.3 Physical 65.11.1.3 Guest Guest Load VM 2 VM 2 Balancer 65.11.1.4 EIP, 65.11.1.4 Guest Guest VM 3 ELB VM 3 65.11.1.5 Guest 65.11.1.5 Guest VM 4 VM 4 CS CS Security DHCP, Virtual Security DHCP, Virtual Group 2 DNS Router Group 2 DNS Router
- 30. CS Virtual Router provides Network Services External Devices provide Network Services Guest Virtual Network 10.0.0.0/8 Guest Virtual Network 10.0.0.0/8 Public VLAN 100 Public VLAN 100 Network/Internet Network/Internet Guest Public IP Private IP Guest 10.1. VM 1 6.37.1.12 Juniper 10.1.1.111 10.1. VM 1 CS Gateway 1.1 SRX 1.1 6.37..1.11 Firewall Virtual address Guest Guest Router 10.1.1.1 10.1. VM 2 10.1. VM 2 Private IP DHCP, DNS 1.3 Physical 10.1.1.112 1.3 NAT Guest Load Guest Load Balancing 10.1. VM 3 Public IP Balancer 10.1. VM 3 VPN 1.4 6.37.1.11 1.4 Guest Guest 10.1. VM 4 10.1. VM 4 1.5 1.5 CS DHCP, Virtual DNS Router
- 31. Layer-2 Layer-3 Isolation VLAN/SDN Security Groups Performance Better Better Network setup Moderate Easy Support broadcast Yes No Scalability Good Best Interoperability with Good Poor physical servers
- 32. CloudStack storage Primary Storage • Configured at Cluster-level. Close to hosts for better performance • Stores all disk volumes for VMs in a cluster L3 switch • Cluster can have one or more primary storages Pod 1 L2 switch • Local disk, iSCSI, FC or NFS Secondary Cluster 1 Storage Host 1 Secondary Storage Primary Storage • Configured at Zone-level Host 2 • Stores all Templates, ISOs and Snapshots • Zone can have one or more secondary storages • NFS, OpenStack Swift, others coming