Forester Research expects the cloud computing market to top $241 billion by 2020. In the last couple of weeks we published 2 new white papers, that address the need for enterprises to radically scale the delivery of services while minimizing costs related to IT infrastructure, application development and deployment, and operations.
In addition, more enterprises are considering how to deploy middleware as a service instead of running multiple, traditional middleware platform silos. There can be potential cost savings when offering ESB-as-a-service across multiple tenants, rather than maintaining on-premise servers and storage.
Today eGovernment promises a means for cost effectively delivering information and enabling transactions among the citizens residing within a local geography, as well as the different governmental groups supporting them. However, the role of eGovernment has been limited by the inherent cost and complexity of integrating and managing traditional server-based systems.
This white paper presents an architectural approach for maintaining a central platform-as-a-service (PaaS) working in concert with local private cloud platforms to efficiently leverage computing resources across platforms and locations—while ensuring proper governance. Significantly, this architectural model works equally well in the government and in the private sector among enterprises with multiple locations. The document also reviews how the award-winning WSO2 Stratos cloud middleware platform supports this approach.
Cloud Native Advantage: Multi-Tenant, Shared Container PaaS
The white paper describes the architecture components required to deliver multi-tenant, shared application platform services. It also proposes a cost evaluation tool that compares the deployment footprint associated with a multi-tenant, shared application container PaaS versus a single-tenant, dedicated container PaaS (i.e. traditional application server deployment in cloud). The analysis reviews multiple tenant count and application platform service scenarios. An associated TCO worksheet incorporates the application platform license (or subscription) cost, PaaS management service cost, infrastructure expense, and IT management overhead.
Additionally, the paper examines how multi-tenant application platform service instances can host multiple tenants with appropriate resource isolation and deliver a significant cost advantage. It also explores how cloud-native containers are purpose-built to overcome context isolation challenges, deployment tooling issues, and resource sharing impediments. Finally, it explores how cloud application architecture components (e.g. a cloud-aware code deployer, tenant-aware administration screens, and tenant-aware load balancing) create a safe, multi-tenant environment while maximizing resource sharing and lowering cost.
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