Kubernetes Namespace Snapshots for Consistent Multi-Volume Restore
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Solution Overview
Problem
Existing cloud-network architectures, such as Kubernetes, lack an efficient method to manage complex applications with multiple storage volumes across pods, leading to cumbersome and error-prone snapshot and backup processes that are unaware of application configuration and topology.
Innovation Solution
The implementation of an application bundle construct that groups application containers and resources into a single unit, capturing snapshots that include data and metadata, allowing for consistent backups and restores across entire applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If storage-only snapshots are taken across multiple storage volumes, then data backup capability is provided, but the process becomes tedious, error-prone and inconsistent due to distributed application architecture
Solution Approach 1:
The patent combines multiple storage-only snapshots into a single application-level snapshot by introducing the Application Snapshot construct. This construct aggregates snapshots from all storage volumes bound to pods within a namespace, creating a unified backup that reflects the complete application state including topology and configuration relationships.
Solution Approach 2:
The Application Snapshot construct acts as an intermediary layer between individual storage volume snapshots and the complex distributed application architecture. It provides a standardized interface that automatically captures application topology, resource configurations, and volume relationships without requiring manual coordination of individual volume snapshots.
2Reliability
If storage-only snapshots are used, then data capture is achieved, but cloning and restoration become cumbersome and prone to misconfiguration due to lack of application configuration awareness
Solution Approach 1:
The Application Snapshot construct creates a comprehensive copy that includes not only data from storage volumes but also application configurations, topology information, and resource metadata. This complete copy enables accurate cloning and restoration by preserving all relationships and configurations, eliminating the need for manual reconfiguration.
Solution Approach 2:
The system performs preliminary capture of application topology and configuration metadata alongside the storage volume snapshots. This preliminary action ensures that all necessary information for accurate restoration is available before the restore operation begins, enabling automated and error-free cloning processes.
3Adaptability or versatility
If multiple applications and resources are deployed in a Kubernetes namespace, then application diversity is achieved, but snapshotting becomes complex due to the need to capture all applications and objects bound to the namespace
Solution Approach 1:
The Application Snapshot construct provides universal functionality that works across all applications and resources within a namespace regardless of their specific types or configurations. It automatically identifies and captures all relevant objects, storage volumes, and their relationships, providing a single unified snapshot operation that handles diverse application workloads.
Data Source
AI summary
A method comprising identifying one or more application resources associated with one or more applications, wherein the one or more applications is associated with a namespace, identifying a plurality of persistent volume claims, identifying a plurality of storage volumes associated with the namespace, wherein each of the plurality of storage volumes is bound to at least one of the plurality of persistent volume claims, pausing transactions executed on each of the plurality of storage volumes, capturing a snapshot of each of the plurality of storage volumes, creating a copy of the one or more application resources, and capturing a namespace snapshot by capturing the snapshots of each of the plurality of storage volumes and the copy of the one or more application resources.