VM Provisioning via Cached Template Segmentation
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Solution Overview
Problem
The provisioning and deployment of virtual machine (VM) resources are time-consuming due to the installation of operating systems, services, tiers, applications, middleware, and software bundles, which can involve delays from managing different vendors and lengthy installation processes, making fast provisioning infeasible for deployments requiring quick scalability.
Innovation Solution
The method involves separating a template used for provisioning into repeatable and unique portions, where the repeatable portions are cached and reused to create new VM instances, reducing the need to perform repetitive installation tasks and speeding up the deployment process by using a cached VM image as a baseline, even across different hypervisors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the complete template is processed for each VM provisioning, then the installation is complete and reliable, but the provisioning time becomes excessively long
Solution Approach 1:
The template is divided into two distinct portions: a repeated portion containing software binaries and configuration files that can be cached, and a unique portion containing VM-specific configuration. This segmentation allows the system to process only the necessary unique portion for each new VM while reusing the cached repeated portion, thereby reducing provisioning time without compromising installation completeness.
Solution Approach 2:
The repeated portion of the template is processed and cached in advance before actual VM provisioning occurs. By performing this preliminary action, the system eliminates the need to reprocess identical software installation and configuration steps for each new VM, significantly reducing provisioning time while ensuring that the cached content is ready for reliable deployment.
2Reliability
If software binaries and configuration files are reinstalled for each VM, then the installation is complete, but network bandwidth is excessively consumed
Solution Approach 1:
Instead of transferring and reinstalling software binaries and configuration files for each VM provisioning, the system creates a cached copy of the repeated portion containing these files. Subsequent VMs utilize this cached copy, eliminating redundant network transfers and significantly reducing bandwidth consumption while maintaining installation completeness.
3Reliability
If the same installation process is repeated for each VM in an auto-scaling group, then each VM is properly configured, but the deployment scalability is limited
Solution Approach 1:
The template is segmented into a repeated portion (software binaries and configuration files) and a unique portion (VM-specific settings). This segmentation enables the system to efficiently handle auto-scaling scenarios by reusing the cached repeated portion for multiple VMs while only processing the unique portion for each new VM, thereby maintaining configuration accuracy while dramatically improving deployment scalability.
Solution Approach 2:
The cached repeated portion serves as a universal template that can be reused across multiple VMs in an auto-scaling group. This universal component contains the common software installation and configuration steps that are identical across all VMs, allowing the system to maintain configuration accuracy while enabling rapid scaling by avoiding redundant processing.
Data Source
AI summary
A computer-implemented method includes receiving a template for creating a virtual machine (VM) instance; separating the template into a repeated portion and a unique portion; determining whether the repeated portion is stored in a cache; creating based on determining that the repeated portion is stored in the cache, the VM instance using the repeated portion stored in the cache; completing the unique portion of the VM instance to create a completed VM instance; and deploying the completed VM instance.