Multi-tenant Container Isolation via Security Manager
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Multi-tenant software containers face challenges in isolating tenants to prevent resource starvation, data access, and fault propagation, leading to potential system crashes or resource exhaustion.
Innovation Solution
Implementing resource isolation mechanisms, such as bytecode weaving, interception, and shadow environments, to monitor and manage resource usage, along with dependency and security isolation using tenant and container classloaders, and fault isolation techniques to prevent excessive resource consumption and unauthorized data access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If multiple tenants execute in the same multi-tenant software container to share common frameworks and reduce resource utilization, then resource efficiency is improved, but isolation between tenants deteriorates leading to potential resource starvation and system instability
Solution Approach 1:
The patent segments the shared container environment into isolated tenant contexts using thread groups and security managers. Each tenant operates within its own thread group that is monitored independently, allowing resource sharing at the container level while preventing individual tenants from consuming excessive resources. This segmentation resolves the contradiction by maintaining both resource efficiency and system stability.
Solution Approach 2:
The patent introduces a container-level security manager as an intermediary between tenants and system resources. This security manager monitors resource consumption across all tenants and enforces isolation policies, acting as a mediator that allows efficient resource sharing while preventing any single tenant from causing system instability. The intermediary mechanism maintains both high resource utilization and reliable system operation.
2Device complexity
If basic isolation mechanisms are used in multi-tenant containers to simplify architecture, then device complexity is reduced, but security between tenants deteriorates allowing unauthorized data access
Solution Approach 1:
The patent implements dynamic security management where the security manager adapts its behavior based on runtime conditions. Thread groups are dynamically created and monitored, and isolation policies are enforced dynamically rather than through static complex architecture. This dynamic approach provides strong security while keeping the overall system architecture relatively simple.
3Reliability
If resource monitoring and isolation mechanisms are implemented to prevent resource starvation, then reliability is improved, but device complexity increases due to additional monitoring and management overhead
Solution Approach 1:
The container-level security manager serves multiple functions simultaneously: it creates thread groups, monitors resource consumption, enforces isolation policies, and manages tenant lifecycles. This multi-functional approach improves tenant isolation effectiveness while avoiding the complexity that would result from separate dedicated mechanisms for each function.
Data Source
AI summary
Technologies are described herein for isolating tenants executing in a multi-tenant software container. Mechanisms for resource isolation allow tenants executing in a multi-tenant software container to be isolated in order to prevent resource starvation by one or more of the tenants. Mechanisms for dependency isolation may be utilized to prevent one tenant executing in a multi-tenant software container from using another tenant in the same container in a manner that requires co-tenancy. Mechanisms for security isolation may be utilized to prevent one tenant in a multi-tenant software container from accessing protected data or functionality of another tenant. Mechanisms for fault isolation may be utilized to prevent tenants in a multi-tenant software container from causing faults or other types of errors that affect other tenants executing in the same software container.