Building a cloud native platform with Apache PaaS
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As a PaaS framework, there are some key elements that the cloud computing industry is taking interest on Apache Stratos (incubating). This presentation explore the unique advantaged of Apache Stratos as a PaaS framework.
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Building a cloud native platform with Apache PaaS
- 1. Last Updated: March. 2014 VP Developer Evangalism Samisa Abeysinghe Building a Cloud Na5ve Pla8orm with Apache Stratos
- 2. * * ๏ Cloud Na)ve pla-orms accelerates innova)on, increases opera)onal efficiency, reduces costs ๏ The key building blocks of the cloud na)ve pla-orms are -‐ service provisioning -‐ load balancing -‐ management -‐ policy enforcement -‐ auto scaling -‐ monitoring, metering and logging -‐ mul)-‐tenancy -‐ mul)-‐cloud, cloud SLA and cloud burs)ng -‐ control/governance -‐ extendability Cloud Na5ve Pla8orm
- 3. * * ๏ Enterprise-‐grade Open Pla-orm as a Service ๏ Stratos ini)ally developed by WSO2 and donated to Apache Stratos What is Apache Stratos (incuba5ng)?
- 4. * * Apache Stratos PaaS Layered Architecture
- 5. * * Why is this architecture so important? ๏ Cartridge model enable bringing in even legacy apps into cloud ๏ Unified communica)on across components in the PaaS using message broker ๏ Centralized monitoring and metering with unified logging framework -‐ ability to plug in BAM ๏ Ability to plugin any IaaS due to the use of jclouds API ๏ Ability to plugin any third party load balancer using message broker model ๏ Ability to plugin any third party health checking/ monitoring framework Apache Stratos PaaS Architecture
- 6. * * How Scalable it is? ๏ In theory infinite -‐ horizontal scaling -‐ limited by resource (instance capacity) availability How Dynamic it is? ๏ Load Balancers are spawned dynamically -‐ LB too is a cartridge ๏ In case of mul)-‐cloud, mul)-‐region, LB can scale per cloud/region ๏ Per service cluster LB Scalable and Dynamic Load Balancing
- 7. * * What is unique about Stratos/Private PaaS ๏ Cartridge based LB model ๏ Can bring any third-‐party LB -‐ HAProxy, nginx -‐ As easy as plugging into LB extension API Scalable and Dynamic Load Balancing..
- 8. * * What is it? ๏ Scaling algorithm can use mul)ple factors. such as -‐ Load avarage of the instance -‐ Memory consump)on of the instance -‐ In-‐flight request count in LB ๏ Capable of predic)ng future load -‐ Real )me analysis of current load status using CEP integra)on -‐ Predict immediate future load based on CEP resul)ng streams Mul5-‐factored Auto Scaling
- 9. * * Why should one care? ๏ Maximise resource u)liza)on ๏ Easy to do capacity planning ๏ Dynamic load based resource provisioning ๏ Op)mizing across mul)ple clouds What are the advantages? ๏ Make DevOps life easy ๏ More accurate capacity planning Mul5-‐factored Auto Scaling...
- 10. * * What are the smart policies? ๏ Auto scaling ๏ Deployment Auto scaling policy ๏ Define thresholds values pertaining scale up/down decision ๏ Auto Scaler refer this policy ๏ Defined by DevOps Deployment policy ๏ Defined how and where to spawn cartridge instances ๏ Defined min and max instances in a selected service cluster ๏ Defined by DevOps based on deployment paYerns Smart Policies
- 11. * * Why should one care? ๏ Can provide cloud SLA What are the advantages? ๏ Make DevOps life easy -‐ help keep to SLA ๏ Make SaaS app delivery life easy -‐ do not have to worry about availability in applica)on layer Smart Policies
- 12. * * What MT model does it support? ๏ Container MT -‐ virtual Machine, LXC, Docker ๏ In-‐container MT -‐ within VM/LXC/Docker tenancy What is unique? ๏ Can have high tenant density What are the advantage of this model? ๏ Op)mizing resource u)liza)on -‐ by sharing resource such as CPU, memory across tenants -‐ low footprint, based on u)liza)on/usage of the tenants app ๏ No need dedicated resource alloca)on for tenants Mul5-‐tenancy
- 13. * * What is a Par55on? ๏ Logically group IaaS resource loca)ons ๏ Par))ons are important to make applica)on high availability ๏ Cartridge instances are spawned inside these par))ons ๏ Par))ons are defined by DevOps What is a network par55on? ๏ Logical groups mul)ple par))ons, that are in the same network ๏ Stratos will spawn Load Balancers per network par))on ๏ Since LB instances and cartridge instances reside in same network, they can communicate using private IP addresses ๏ Used in deployment policies Controlling IaaS Resources
- 14. * * What are the advantages? ๏ Can controll -‐ per cloud, per region, per zone, ...etc ๏ Can achieve high availability, disaster recovery ๏ Help for cloud SLA ๏ Control the resource u)liza)on ๏ Help with geo based deployments -‐ help comply with geo rules/regula)ons Controlling IaaS Resources
- 15. * * What is it? ๏ Expanding/provisioning applica)on into another cloud to handle peak load. Why Should one care? ๏ Resource peak )me can be off-‐loaded to third party clouds/resources What is unique about it? ๏ Can off-‐load to any cloud -‐ Private, Public and Hybrid ๏ Easy to managed with the model of LB per bus)ng cloud Cloud Burs5ng
- 16. * * What are the advantages? ๏ Make DevOps life easy ๏ Low TCO, and higher u)liza)on exis)ng dedicated resources Cloud Burs5ng...
- 17. * * How detail it is? ๏ Instance up/down )me ๏ Each and every instance public health status -‐ applica)on health, OS health like load average, memory consump)on ๏ Applica)on logs Why should one care? ๏ Centralize view for all logging, metering and monitoring What are the advantages? ๏ DevOps life easy -‐ centralize log viewer -‐ centralize dashboard ๏ Easy to throYling Logging, Metering and Monitoring
- 18. * * More Informa5on ! ๏ Apache Stratos (Incubating) - http://stratos.incubator.apache.org/ ๏ WSO2 Private PaaS - http://wso2.com/cloud/private-paas/