BETTER, FASTER, CHEAPER INFRASTRUCTURE: APACHE
CLOUDSTACK + RIAK CSJohn Burwell
([email protected] | @john_burwell)
Who Am I
• Senior Software Engineer @ Basho Technologies
• Member, Apache CloudStack PMC
• Ran operations and designed automated provisioning for hybrid analytic/virtualization cloud infrastructures
• Led architectural design and server-side development of a SaaS physical security platform
... but I submitted a ticket.
Better adjust to shifting requirements
Deliver resources and recover from failure faster
Utilize cheaper commodity components without compromising reliability
1administrator per 10000 servers
Composable Infrastructure
• Resource Pooling
• Rapid Elasticity
• Self Service
Automated late binding of responsibilities to hardware
Doesn’t vSphere/XCP/XenServer already do that?
Software Is Eating Hardware
• Moore’s Law has pulled fault tolerance up the stack
• Commodity Hardware
• Reduced cost
• Services wider range of workloads
• Dynamic resource allocation
Specialized Hardware Reduces Agility
Traditional Workload
Management
Network
Hypervisor����������� ������������������ Cluster
Hypervisor����������� ������������������ Cluster
Shared����������� ������������������ Storage
• Reliable
• Fault tolerant
• Specialized hardware
• IT managed provisioning
• Static scale out model
Focused on resource consolidation not agility
Cloud Workload• Reliable
• Fault Tolerant
• Commodity Hardware
• Self-Service provisioning
• Control Plane -> Dynamic scale out model
SDN
Rack Rack
Object����������� ������������������ Storage
App App
Resource optimization increases agility
Traditional Workload
Cloud Workload
Reality
Got It ... Why Go Private?
• Leverage existing infrastructure investment
• Customization and Control
• Regulatory/Security Requirements
• Cost
Complete Private Cloud
+
Compute Services Object Storage Services
What Is Apache Cloudstack?
§Open source software that deploys and manages large networks of virtual machines, as a highly available, highly scalable Infrastructure as a Service (IaaS) cloud computing platform. !§CloudStack is a Top-Level Project at the Apache Software Foundation.
~300: Acknowledged production implementations
~43,000: Hosts in a single CloudStack instance
~100: Project committers
Anatomy Of CloudStack• Management Server Farm
• Management and provisioning tasks
• Zone
• Collection of pods, network offerings and secondary storage
• Pod
• Collection of clusters in the same failure boundary
• Cluster
• A grouping of hosts and their associated storage
• Hosts
• Servers onto which services will be provisioned
• Primary Storage
• VM disk storage
• Network
• Logical network associated with service offerings
• Secondary Storage
• Template, snapshot and ISO storage
Zone
CloudStack Pod
Cluster
!Host
!Host
Network
Primary Storage
VM
VM
CloudStack Pod
Cluster
Secondary Storage
Primary Vs Secondary Storage
• Random access read/write
• Changes often
• Zone Scoped
• Focused on throughput
• Write once/read many
• Append only
• Zone or Region Scoped
• Focused on reliability
Secondary Storage is the compute lifeboat.
Secondary Storage Vm
• Required for secondary storage operation
• Separates data transfer operations from the control plane
• Transfers data and manipulates secondary storage as directed by the management server
• Dynamically scaled by the management server
• An SSVM template is required and its installation is an additional step
What Is Object Storage?
• Stores large, immutable, chunks of unstructured data referenced through a unique key
• Objects live in a unique global namespace (e.g. bucket)
• Simple interface that provides uniform access to distributed storage
• Typically provide redundancy and replication in software allowing the use commodity JBOD storage
What Is Riak CS?
• Simple, reliable storage of large objects accessed using the S3 or Swift API
• Multi-tenant security model with per object ACLs
• Usage Accounting and Reporting
• Open Source (Apache2 Licensed)
Your Own Private S3
Anatomy Of Riak CS
• S3/Swift API Proxy + Riak key-value store
• Peer-to-Peer Design: Any node can service any read or accept any write request
• Maintains multiple replicas (default 3) spread across multiple nodes
• Ops Friendly
Horizontally scalable storage on commodity hardware
Riak CS Use Cases
• Secondary Storage for VM snapshot and template data
• Backup Storage
• Serving Static Content
• Application Log Storage
Using Riak Cs With CloudStack
• Create a user account and bucket for CloudStack — the user’s ACLs should be restricted to the CloudStack bucket
• In CloudStack, define an S3 secondary storage resource using the Riak CS cluster’s end point, the CloudStack account’s credentials, and the CloudStack bucket name
• Create an NFS share to stage files sized to meet peak snapshot and VM creation load. This share is scratch space to support hypervisors that can not directly stream objects.
Achieving Commodity Reliability
• Create a zone per power source/backbone network connection
• Establish independent primary storage in each zone with block-level replication between zones
• Utilize Riak CS for secondary storage — evenly distributing nodes across zones
• Distribute application instances across all zones
A Complete Private Cloud
Management
Network
Hypervisor����������� ������������������ Cluster
Hypervisor����������� ������������������ Cluster
Shared����������� ������������������ Storage
SDN
Rack Rack
Riak����������� ������������������ CS
App App
Traditional����������� ������������������ Clusters Cloud����������� ������������������ Clusters
CloudStack����������� ������������������ Management����������� ������������������ Server
Up And Running With Riak CS
• Learn more @ http://basho.com/riak-cloud-storage
• Grab it @ http://docs.basho.com/riakcs/latest/riakcs-downloads/
• Follow us @basho
• Help from the [email protected] mailing list or on FreeNode @ #riak
• Contribute @ http://github.com/basho/riak_cs
Join Our Community
• Learn more @ http://cloudstack.apache.org
• Grab it @ http://cloudstack.apache.org/downloads.html
• Follow us @cloudstack
• Help from the [email protected] mailing list or on Freenode @ #cloudstack
• Contribute on the [email protected] mailing list or on Freenode @ #cloudstack-dev
Thoughts? Questions?
