Download - CloudStack Overview
Apache CloudStack
Santhosh Kumar Edukulla
Agenda• Overview of CloudStack
• Few numbers, Users, Introduction etc.
• CloudStack Overview and Architecture.
• Demo of CloudStack
• CloudStack Use Cases, Community and Getting Involved
• Q&A
What is Apache CloudStack?
Apache CloudStack is a scalable, multi-tenant, open source, purpose-built, cloud orchestration platform for delivering turnkey Infrastructure-as-a-Service clouds. the most mature, most scalable, most proven IaaS platform available today.
Characteristics of Clouds
• On-Demand Self-Service
• Broad Network Access
• Resource Pooling
• Rapid Elasticity
• Measured Service
• API Access
CLOUD VIRTUALIZATION
Cloud Service Models
USER CLOUD a.k.a. SOFTWARE AS A SERVICESingle application, multi-tenancy, network-based, one-to-many delivery of applications, all users have same access to features.
Examples: Salesforce.com, Google Docs
DEVELOPMENT CLOUD a.k.a. PLATFORM-AS-A-SERVICEApplication developer model, Application deployed to an elastic service that autoscales, low administrative overhead. No concept of virtual machines or operating system. Code it and deploy it.
Examples: VMware CloudFoundry, Google AppEngine, Windows Azure, Rackspace Sites, Red Hat OpenShift, Active State Stackato, Appfog
SYSTEMS CLOUD a.k.a INFRASTRUCTURE-AS-A-SERVICE
Servers and storage are made available in a scalable way over a network.
Examples: EC2,Rackspace CloudFiles, OpenStack, CloudStack, Eucalyptus, OpenNebula
SaaS
PaaS
IaaS
Deployment Models
CloudStack History• 2008 – Vmops launches (rebrands Cloud.com)• April 2010 – Cloud.com Releases CloudStack under GPLv3• July 2011 - Citrix acquires CloudStack• April 2012 - CloudStack donated to Apache Software
Foundation• November 2012 – First Apache CloudStack Release (4.0)• March 2013 - CloudStack becomes a top-level Apache project• 2014 – Majority of committers are not from Citrix
CloudStack Users(Education/Enterprises/Governments)
9
CloudStack Users
Few Salient notes:
• Open Source (Apache-Licensed) IaaS
• Vast Community of Users and Providers
• Written in Java*• Hypervisor Agnostic• Time-Based Releases• Proven product• Strong Apache governance model• 26 k commits• Peaked at 2.5 Million lines of code• 24k unique IP’s download our
packages in last 12 months• 200 active code contributors • 81 project committers• 32 PMC members (20 organizations)• Over 100 people working on
translation• 2500 mailing list msgs per month
CloudStack Architecture
CloudStack Layered view
Commodity compute StorageNetworking
Hypervisor
CMP - Orchestration layer
orchestration API
eCommerce Platform
Choice of Hypervisor (KVM, VMWare, Xen, hyper-V)
Apache CloudStack
Ecommerce platform
CloudStack API
Billing Config Management
Networking compute Storage
PaaS Developer tooling Multi-cloud management
CloudStack Deployment View
Pod 1
….
Cluster N
Access Layer
Host 2
Cluster 1
Simple view of CloudStack 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
PrimaryStorage
Zone 1
….
L3 core
SecondaryStorage
Pod N
CloudStack Management
Server
Internet
What CloudStack Provides
Feature Highlights
• Easy Installation• Simple to configure and use in minutes.• Broad Hypervisor support(KVM, XenServer, Xen Cloud Platform,
VMware via vCenter, Bare Metal via IPMI)• Easy plugin model• AWS API fidelity• Scalability, High Availability, Load Balancing• Broad vendor hardware for networking, storage support• Choice of interfaces
— Web UI, command line, REST-based API• Developer friendly, easy to get started, add, refactor,
contribute..(We will see in demo..)
• It’s the heart of the CloudStack system.
• Manages the assignment of guest VMs to particular hosts. Uses
algorithms like First fit, Disperse, Fill first etc, supports overprovisioning.
• Manages the assignment of public and private IP addresses to particular
accounts
• Manages the allocation of storage to guests as virtual disks.Manages
snapshots, templates, and ISO images, possibly replicating them across
data centers
The Management Server
Compute
CloudStack Provides On-demand Access to Infrastructure Through a Self-Service Portal
Citrix Confidential - Do Not Distribute
Network Storage
Admin
Users
Org A
Admin
Users
Org BUsers
End User
Admin
• CloudStack provides an API that gives programmatic access to all the management features available in the UI
• The API enables the creation of command line tools and new user
interfaces to suit particular needs• Authenticated on 8080 w/Keys• Unauthenticated on 8096 (off by default)• Python + Ruby clients available• Responses in XML or JSON
API and Extensibility
Virtual Machine Management
Users
Start
Stop
Restart
Destroy
VM Operations
Console Access
• CPU Utilized
• Network Read
• Network Writes
VM Status
Change Service Offering
2 CPUs
1 GB RAM
20 GB
20Mbps
4 CPUs
4 GB RAM
200 GB
100Mbps
Volume & Snapshot Management
Volume
VM 1Add / Delete Volumes
Schedule Snapshots
Hourly
Daily
Weekly
MonthlyNow
Create Templates from Volumes
Volume Template
View Snapshot History
….
12/2/2012 7.30 am 2/2/2012 7.30 am
Open Platform to Suit Customer Needs
Compute
XenServer VMware KVMOracle VM Bare metal
Hypervisor
Storage
NFSFiber Channel Swift
Block & Object
Local Disk iSCSI
Network
Network Type
Load balancerIsolation
FirewallVPN
Network & Network Services
Multi-tenancy & Account Management • Domain is a unit of
isolation that represents a customer org, business unit or a reseller
• Domain can have arbitrary levels of sub- domains
• A Domain can have one or more accounts
• An Account represents one or more users and is the basic unit of isolation
• Admin can limit resources at the Account or Domain
Admin
CloudDomain
Org A
AdminDomain
Reseller
ASub-Domain
Org C
Admin
User 1
User 2
Account
Group B
Group A
Account
ResourcesVMs, IPs,
Snapshots…
ResourcesVMs, IPs,
Snapshots…
Primary:• Primary storage is associated with a cluster
• Stores the disk volumes for all the VMs running on hosts in a cluster
Secondary:• Secondary storage is associated with a zone
and is available to all hosts in that zone.
• Stores Templates - OS images used to create VMs, ISO, Disk volume snapshots (saved copies of VM data)
Cloud Infrastructure – Storage
• One or more hosts groupedinto a cluster
• One or more clustersgrouped into a pod
• One or more pods grouped into a zone
• One or more zones controlled by one management server
Cloud Infrastructure - Summary
Pod
Zone
Secondary
Storage
CloudStack Management
Server
CloudStack Networking
• Network Services: CloudStack manages various network services viz., DHCP, VLAN allocation, Firewall, NAT/Port forwarding, routing, VPN, Load Balancing, supported by various network hardware vendors.
• Traffic Types: Management network, guest network, private network, public network, link local network.
• Network Modes: Basic and Advanced
Basic Networking:
Customer 1 Customer 2192.168.1.55192.168.1.56192.168.1.57 192.168.1.58192.168.1.59 192.168.1.60
Internet
Physical Router
CSVirtual Router
VM 1
VM 2
VM 3
VM1
VM 2
VM 3
• All zone tenants share a single flat public network
• Tenant isolation provided by Security Groups• Hypervisor level firewall IP
Address filtering• Layer 3 Isolation• Scales much better than VLANs
• CloudStack virtual system provides dhcp, dns services etc.
• Multiple VLANs for isolation• L2TP-based VPN• Virtual router is gateway• Load balancer available• 1:1 NAT• Metering data• One virtual router per account• Does not scale as well
Advanced Networking:
Internet
Physica l Router
CSVirtualRouter
1VM VM VM
CSVirtualRouter
1VM VM VM
Public Network
Customer PrivateNetworks
2
3Customer 1
2
3Customer 2
VLAN 100 VLAN 200
Cloud Infrastructure – Large-ScaleRedundant Network
Secondary Storage Servers
PrimaryStorage
NFSSecondary
Storage
Pod
1
Pod
2
Layer-3 switches with firewall modules
Layer-2 switches
Internet
PyrimarStorage
PrimaryStorage
PrimaryStorage
NFSSecondary
Storage
Internet
Computing Nodes
Managemen t Server Cluster
Primary Storage Servers
Let’s Build Our Cloud
Requirements and configuration…
Demo….
CloudStack Collaboration Conferences
Tooling and Support System
• Marvin• CloudMonkey• Simulator• DevCloud• Ansible Recipes• Vagrant Support• Dockerized CS
Use Cases(Many…)
• Private Cloud• Dual-Workload Private Cloud• Public Cloud (ISP/Providers)• Hybrid Cloud• Small to Very, Very Large• DevOps • AWS “insourcing”
Getting Involved…
• website : http://cloudstack.apache.org/
• Mailing lists :• [email protected]• [email protected]
• Twitter: #cloudstack
• Presentations: http://slideshare.net/cloudstack
• IRC: #CloudStack on irc.freenode.net
• GitHub : https://github.com/apache/cloudstack
Q && A
Thanks!
Questions: ?
if “I KNOW”:return AnswerFactory.get_answer (“AnswerType”)
else: “will find out and let you know”
Santhosh Kumar Edukulla
[email protected]@gmail.com
