Xen and CloudStack - ?· Xen and CloudStack Ewan Mellor Director, Engineering, Open-source Cloud Platforms…

Download Xen and CloudStack - ?· Xen and CloudStack Ewan Mellor Director, Engineering, Open-source Cloud Platforms…

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Xen and CloudStack Ewan Mellor Director, Engineering, Open-source Cloud Platforms Citrix Systems What is CloudStack? Move to the Apache Foundation CloudStack architecture on Xen The future for CloudStack Developing on CloudStack Agenda Infrastructure-as-a-Service software For people to build Amazon-style clouds either as a public service, or as a private cloud within your own organization. CloudStack is CloudStack is Compute XenServer Oracle VM KVM vSphere Bare metal Hypervisor Storage Local Disk iSCSI NFS Fiber Channel Swift Block & Object Network Network Type Isolation Load balancer Firewall VPN Network & Network Services CloudStack Apache Foundation (incubating) 2008-present Java Fairly centralized Complete solution CloudStack versus OpenStack OpenStack OpenStack Foundation (founding in progress) 2010-present Python Aggressively distributed More of a framework Citrix donated the CloudStack code to the Apache Software Foundation and Apache Incubator The project now needs to prove that it can operate openly and independent of Citrix If it can do that, it can be accepted as a top-level Apache project. Apache incubation Most CloudStack users choose Xen or XenServer It is the combination that works the best! CloudStack and Xen XenVMwareKVM A cluster of management servers An orchestration engine State and user management Region, zone, pod, cluster model A large collection of effectors System VMs Usage reporting User interface CloudStack is Router L3 core switch Access layer switches Servers Management cluster Secondary Storage Pod 1 Pod 2 Pod 3 Pod N Load balancer Users Pod 1 Host 2 Cluster 1 Host 1 Primary storage L3 switch Secondary storage L2 switch Two types of storage Stores virtual disks Configured at cluster level Close to hosts for better performance Requires high IOPS Primary storage Stores templates, ISOs and snapshots Configured at zone level Zone can have one or more High capacity, low cost Secondary storage Router L3 core switch Access layer switches Servers Management cluster Secondary Storage Pod 1 Pod 2 Pod 3 Pod N Load balancer Users Choice of network isolation Physical, VLAN, L3 (anti-spoof), overlay (GRE) Multiple networks Shared networks, project networks IPAM / DHCP Gateway (inc VRRP) VPN, stateful firewall, NAT, port forwarding Traffic monitoring Load balancing User-data / password-change services Networking features Virtual network topologies Public network Guest network DHCP, DNS, NAT, LB, VPN 10.1.1.1 Guest VM 1 10.1.1.3 Guest VM 2 10.1.1.4 Guest VM 3 10.1.1.5 Guest VM 4 CS Virtual Router Public network DHCP, DNS 10.1.1.1 Guest VM 1 10.1.1.3 Guest VM 2 10.1.1.4 Guest VM 3 10.1.1.5 Guest VM 4 NetScaler LB CS Virtual Router provides network services External devices provide network services CS Virtual Router SRX firewall Guest network Public network Multi-tier virtual network topology DHCP, DNS, user-data 10.1.1.1 Web VM 1 10.1.1.3 Web VM 2 10.1.1.4 Web VM 3 10.1.1.5 Web VM 4 Netscaler LB CS Virtual Router CS Virtual Router 10.1.2.21 10.1.2.18 10.1.2.38 10.1.2.39 10.1.2.31 App VM 1 10.1.3.21 10.1.2.24 App VM 2 10.1.3.45 10.1.3.24 DB VM 1 DHCP, DNS, user-data DHCP, DNS user-data, NAT, VPN Public network Guest network Guest network Guest network CS Virtual Router SRX firewall Router L3 core switch Access layer switches Servers Management cluster Secondary Storage Pod 1 Pod 2 Pod 3 Pod N Load balancer Users Router L3 core switch Access layer switches Servers Management cluster Secondary Storage Pod 1 Pod 2 Pod 3 Pod N Load balancer Users System VMs Customer VMs 18 Driver domains Xen Hypervisor Control domain (dom0) Host HW Guest VMn Apps Memory CPUs I/O HW Drivers PV Back Ends PV Front Ends Driver Domain e.g. Disk Network HW Driver PV Back End Kernel Guest OS The road ahead Disentangle some core components Make it easier for people to work on subsystems Make it easier to scale the API layers The future for CloudStack S3 API VM S3 API VM S3 API VM Object store (e.g., NetApp, Hadoop, ) S3 API NFS, CIFS, HDFS, 3rd-party object store API, S3 API system VM Absorb new changes from Xen and XS Storage migration The Windsor architecture I/O subsystem changes The future for CloudStack New object storage systems Caringo CAStor HDFS Riak CS New block storage systems GlusterFS? Ceph? Open vSwitch / OpenFlow / VXLAN The future for CloudStack DevCloud DevCloud What is inside? VirtualBox VM Xen Cloud Platform Ubuntu 12.04 dom0 (aka Kronos) JVM, Tomcat, developer tools NFS server MySQL Working, pre-configured CloudStack System VMs Tiny Linux template Why? Eliminates need for another machine / hypervisor Primary and secondary storage Networking, VLAN, etc Install and configuration of environment Disposable changes Revert to snapshot Run Start the DevCloud VM from VirtualBox UI Access the CloudStack UI http://localhost:8080/client Access the dom0 ssh root@localhost p 2222 From the UI, enable the zone System VMs will start up http://localhost:8080/clientCloudStack architecture Management Server Cluster Replica Infrastructure Resources User API Admin API Load Balancer Management Server Management Server MySQL MS is stateless. MS can be deployed as physical server or VM Single MS node can manage up to 10K hosts. Multiple nodes can be deployed for scale or redundancy Replication Hosts Servers onto which services will be provisioned Primary Storage VM disk storage Cluster A grouping of hosts and their associated storage Pod Collection of clusters in the same failure boundary Network Logical network associated with service offerings Secondary Storage Template, snapshot and ISO storage Zone Collection of pods, network offerings and secondary storage Management Server Farm Management and provisioning tasks Components Zone CloudStack Pod Cluster Host Host Network Primary Storage VM VM CloudStack Pod Cluster Secondary Storage Pod 1 . Cluster N L2 Host 2 Cluster 1 Deployment Architecture Host 1 Hypervisor is the basic unit of scale. Cluster consists of one ore more hosts of same hypervisor All hosts in cluster have access to shared (primary) storage Pod is one or more clusters, usually with L2 switches. Availability Zone has one or more pods, has access to secondary storage. One or more zones represent cloud Primary Storage Zone 1 . L3 Secondary Storage Pod N Management Server Cluster Internet DevCloud step-by-step Overview Install Virtual Box Download DevCloud virtual machine Install DevCloud VM Run the VM Login to the CloudStack GUI Start a CloudStack VM. Virtual Box Download / install from Oracle Ensure that VT-d and virtualization extensions are enabled in your laptop CPU Recommend at least 2 GB for DevCloud VM DevCloud VM Download from http://download.cloud.com/templates/devcloud/DevCloud.ova Latest install instructions here: http://wiki.cloudstack.org/display/COMM/DevCloud Import DevCloud into VirtualBox Change memory allocation to 2 GB Snapshot for known good state http://download.cloud.com/templates/devcloud/DevCloud.ovahttp://download.cloud.com/templates/devcloud/DevCloud.ovahttp://wiki.cloudstack.org/display/COMM/DevCloudhttp://wiki.cloudstack.org/display/COMM/DevCloud

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