Cloud Policy Reroute for Safe Service Deployment
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Solution Overview
Problem
The deployment of modifications, such as updates and upgrades, to cloud-based services is cumbersome, resource-intensive, and prone to unsafe practices, leading to inefficient operation and potential disruptions.
Innovation Solution
The implementation of policy rerouting through tenant-defined config files allows for safe deployment of modifications by gradually increasing deployment across nodes and enabling A/B testing, allowing for dynamic execution flow adjustments based on user attributes and conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If modifications are deployed to cloud-based services, then service functionality is improved, but resource consumption increases and disruptions occur
Solution Approach 1:
The deployment process is segmented into multiple phases: initial deployment to a subset of nodes, validation phase, and gradual rollout to remaining nodes. This segmentation allows functionality improvement while controlling resource consumption by limiting simultaneous deployment operations.
Solution Approach 2:
The system dynamically adjusts deployment parameters including the rate of node inclusion, resource allocation, and rollback thresholds based on real-time monitoring of service performance and resource utilization. This dynamic approach optimizes the balance between functionality improvement and resource consumption.
2Speed
If modifications are deployed across all nodes simultaneously, then deployment speed is improved, but system reliability deteriorates due to potential errors affecting all nodes
Solution Approach 1:
The node population is segmented into deployment batches with controlled sizes. Each batch is deployed and validated before proceeding to the next batch, maintaining system reliability while achieving reasonable deployment speed through parallel processing of batches.
Solution Approach 2:
The system implements pre-deployment validation, rollback mechanisms, and error buffering before full deployment. These cushioning measures prepare the system to handle potential errors without compromising overall reliability, allowing faster deployment across segmented node groups.
3Adaptability or versatility
If code modification requests are processed by the cloud-based service provider, then service adaptability is improved, but deployment complexity and resource intensity increase
Solution Approach 1:
The system implements self-service deployment automation including automatic code validation, incremental deployment execution, and self-healing rollback capabilities. This automation reduces deployment complexity while maintaining service adaptability by eliminating manual intervention in the deployment process.
Solution Approach 2:
The deployment system manages complexity by parameterizing deployment configurations including node selection criteria, deployment rate limits, and validation thresholds. These configurable parameters allow the system to adapt to different service requirements without increasing inherent deployment complexity.
4Ease of operation
If tenant-specific code modifications are implemented, then ease of operation for tenants is improved, but system complexity and resource consumption increase
Solution Approach 1:
The system uses template-based code modification where tenant-specific customizations are created as copies or variations of base templates. This copying approach enables easy tenant operation with customized code while reducing resource consumption by avoiding redundant full code deployments for each tenant.
Solution Approach 2:
Code modifications are applied locally to specific tenant instances rather than system-wide. This local quality approach allows each tenant to have customized code while minimizing overall resource consumption by only deploying and processing modifications where needed.
Data Source
AI summary
According to examples, an apparatus may include a processor and a memory on which is stored machine readable instructions. The instructions may cause the processor to receive a call request for a cloud-based service and retrieve a first policy corresponding to the cloud-based service, the first policy identifying a policy reroute. The instructions may also cause the processor to determine which second policy of a plurality of second policies that corresponds to the policy reroute and retrieve the second policy that the corresponds to the policy reroute. The instructions may further cause the processor to apply the second policy on the cloud-based service and respond to the call request following the application of the second policy.


