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awesome-kubernetes/v2-docs/caching.md

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Caching Solutions

!!! info "Architectural Context" Detailed reference for Caching Solutions in the context of Networking & Service Mesh.

Table of Contents

  1. Architectural Foundations
  1. Data and Caching
  1. Edge and Serverless
  1. Infrastructure
  1. Infrastructure and Caching
  1. Networking
  1. Performance

Architectural Foundations

Kubernetes Tools

General Reference

Data and Caching

CDN

Fundamentals

  • (2024) imperva.com: CDN Caching [COMMUNITY-TOOL] — A foundational performance guide exploring edge caching. It provides comprehensive details covering HTTP headers (Cache-Control, ETags), TTL policy mechanics, and real-time purge requests.
  • (2011) nczonline: How content delivery networks (CDNs) work - Nov 2011 [COMMUNITY-TOOL] — A timeless foundational resource detailing the transport mechanics of CDNs. It details network topological distance mapping, anycast DNS, and reverse proxy caching designs for accelerating global static assets.

Caching Fundamentals

Cache Invalidation

Slides

  • (2015) Slideshare: Caching [COMMUNITY-TOOL] — A fundamental slide presentation mapping out early caching architectures. It provides high-level overviews of browser cache policies, reverse proxy structures, CDN nodes, and database query caches.

Data Grid

In-Memory Caching

  • (2025) Red Hat Data Grid [JAVA CONTENT] [ADVANCED LEVEL] [COMMUNITY-TOOL] — Red Hat Data Grid is a distributed, in-memory key-value store built on top of Infinispan. It facilitates fast transaction caching, active real-time data streaming, and cross-datacenter state sync across Kubernetes clusters.
  • (2020) developers.redhat.com: Red Hat Data Grid 8.0 brings new server architecture, improved REST API, and more [ADVANCED LEVEL] [COMMUNITY-TOOL] — Technical release evaluation showcasing Red Hat Data Grid 8.0's updated cloud-native engine. It details the lightweight server container footprint, modern REST API integration pathways, and advanced CLI automation.
  • (2016) Red Hat JBoss Data Grid is Not Just for Caching Java Objects Anymore 🌟 [COMMUNITY-TOOL] — A historical overview detailing JBoss Data Grid's architectural transition. It explains how the grid progressed from a simple JVM object store into a high-capacity, language-agnostic distributed cache.

Edge Caching

Varnish

  • (2025) Varnish Cache [C CONTENT] [ADVANCED LEVEL] [COMMUNITY-TOOL] — Varnish Cache is an extremely fast, thread-optimized HTTP reverse proxy and cache director. It provides the powerful Varnish Configuration Language (VCL) allowing platform engineers to define custom request routing at the cache edge.
  • (2025) varnish-software.com [COMMUNITY-TOOL] — Commercial portal for Varnish Software. It showcases enterprise extensions, massive cache storage configurations, real-time metrics dashboards, and distributed high-availability features built to scale globally.
  • (2021) fedoramagazine.org: Varnish: Your site faster and more stable [COMMUNITY-TOOL] — A practical system administration guide demonstrating how to set up, secure, and monitor Varnish Cache on enterprise Linux configurations to handle surge traffic and ensure static file acceleration.
  • (2020) The Varnish Book [ADVANCED LEVEL] [COMMUNITY-TOOL] — The definitive technical documentation book for Varnish configurations. It provides advanced tutorials on VCL architecture, Edge Side Includes (ESI) structures, security rules, and performance analysis.

Edge and Serverless

WebAssembly Platforms

Tau Edge

  • (2025) ==github.com/taubyte/tau: Tau== ⭐ 5051 [GO CONTENT] [ADVANCED LEVEL] 🌟🌟🌟🌟🌟 [DE FACTO STANDARD] — Tau is an innovative, high-performance decentralized computing platform running WebAssembly (Wasm) workloads on the edge. It integrates autonomous routing, multi-tenant serverless orchestration, and distributed transactional db sync natively without standard cloud overhead.

Infrastructure

Caching

Redis

  • (2023) Redis [C CONTENT] [DOCUMENTATION] [COMMUNITY-TOOL] — The documentation portal for Redis, an in-memory data store used as a cache, database, and message broker. It highlights key features like replication, clustering, and data structures (such as Streams and Sorted Sets) that power real-time apps.

Infrastructure and Caching

Database and Storage

Tarantool and Nginx

  • (2016) highscalability.com: Building nginx and Tarantool based services 🌟 [N/A CONTENT] [ADVANCED LEVEL] [COMMUNITY-TOOL] — An architectural breakdown of low-latency services combining Nginx and the Tarantool in-memory database. Highlights how custom application routing directly bypassing intermediate application runtimes yields astronomical throughput with sub-millisecond delays.

Edge Caching (1)

Enterprise Linux Support

  • (2019) Red Hat Enterprise Linux Blog. Tag: Varnish [N/A CONTENT] [COMMUNITY-TOOL] — Red Hat's official integration portal outlining configuration blueprints for running Varnish Cache inside Red Hat Enterprise Linux (RHEL) architectures. Highlights systemd customization and repository setups to guarantee enterprise-level stability and high-availability HTTP caching.

Legacy Varnish Tuning

  • (2015) slideshare: Varnish - Tips & Tricks - 4Developers 2015 [N/A CONTENT] [LEGACY] — A historical deep-dive into legacy Varnish tuning configurations, highlighting Varnish Configuration Language (VCL) tricks and early cache invalidation mechanisms. While architectural fundamentals remain sound, newer deployments leverage cloud-native operators or CDN-side configurations.

VM Administration

In-Memory Datastores

High-Performance Caching

  • (2026) ==memcached.org== [C CONTENT] 🌟🌟🌟🌟🌟 [DE FACTO STANDARD] — An industry-standard distributed memory object caching system designed for extreme performance and simplicity. Utilizing multi-threaded slab allocation, Memcached continues to serve as the default high-efficiency tier for raw key-value pair lookups.

Memcached Fundamentals

  • (2012) Slideshare: Introduction to memcached [N/A CONTENT] [COMMUNITY-TOOL] — A baseline slide presentation outlining Memcached's memory structure, client hashing, and key eviction strategies. Highly useful for engineers studying early web-scale architecture concepts and memory-efficient software design.

Redis Deep-Dive

  • (2022) architecturenotes.co: Redis Explained 🌟🌟 [N/A CONTENT] 🌟🌟🌟🌟 [ENTERPRISE-STABLE] — An exceptional, visually illustrated deep-dive analyzing Redis execution cycles, single-threaded multiplexing event loops, and data structural formats. Demystifies complex operational mechanisms such as AOF/RDB persistence and memory eviction strategies.

Redis Foundations

  • (2013) Slideshare: Introduction to Redis [N/A CONTENT] [LEGACY] — A legacy educational slide deck focusing on fundamental Redis data types and master-replica layouts. Helpful for conceptual framing, though modern configurations in 2026 leverage more sophisticated cluster/sentinel topologies.

Kubernetes Caching

Distributed Caching

  • (2024) github.com/mittwald/kube-httpcache ⭐ 312 [GO CONTENT] [ADVANCED LEVEL] 🌟🌟🌟 [COMMUNITY-TOOL] — An engineered Kubernetes-native HTTP caching platform that bundles Varnish with a specialized controller sidecar. It queries Kubernetes API endpoints directly to dynamically reconstruct and scale Varnish backend configurations without requiring manual server reloads.

Kubernetes Operators

Varnish Deployment

  • (2023) github.com/IBM/varnish-operator ⭐ 69 [GO CONTENT] [ADVANCED LEVEL] 🌟🌟 [COMMUNITY-TOOL] — A specialized Kubernetes Operator developed by IBM to deploy, manage, and scale Varnish Cache setups natively within container orchestrators. Although useful for cloud-native setups, in 2026 it faces stiff competition from service meshes offering in-built caching proxies.

Network and Security

TLS Offloading

Web Servers

Nginx Caching

Nginx Customization

  • (2015) Nginx: a caching, thumbnailing, reverse proxying image server? 🌟 [NGINX CONF CONTENT] [COMMUNITY-TOOL] — A structural configuration showcase demonstrating Nginx's ability to act as a real-time, lightweight image resizing proxy using its native image filter module. Illustrates the power of Nginx as an all-in-one low-footprint media engine.

Networking

Load Balancing

Database Proxy

  • (2015) slideshare: Load Balancing MySQL with HAProxy [ADVANCED LEVEL] [COMMUNITY-TOOL] — Slide presentation focused on load balancing MySQL database backends. It illustrates TCP level health checks, read/write splitting, query redirection patterns, and seamless failover configurations.
  • (2015) slideshare: Performance Tuning of HAProxy for Database Load Balancing [ADVANCED LEVEL] [COMMUNITY-TOOL] — Deep technical slide deck illustrating OS and kernel-level optimizations for HAProxy. It details socket buffer limits, epoll utilization, and high-concurrency TCP handshake tunings for databases.
  • (2014) slideshare: How To Set Up SQL Load Balancing with HAProxy [ADVANCED LEVEL] [COMMUNITY-TOOL] — A step-by-step instructional slide deck detailing the setup of robust database proxies. It explores load balancing techniques, health verification agents, and transaction limits for active SQL backends.

HAProxy

  • (2025) HAProxy [C CONTENT] [ADVANCED LEVEL] [COMMUNITY-TOOL] — HAProxy is an industry-standard, high-performance TCP/HTTP load balancer and proxy. It is widely praised for its raw event-driven architecture, rich session routing mechanisms, security structures, and efficiency.
  • (2015) slideshare: Haproxy web performance [COMMUNITY-TOOL] — Technical presentation slides focusing on HAProxy optimizations. It targets key configurations for decreasing response latency, including Keep-Alive tuning, memory buffers, and HTTP protocol compression.
  • (2015) slideshare: Haproxy best practice [COMMUNITY-TOOL] — A collection of engineering best practices for building highly available HAProxy configurations. It covers multi-tenant rate limiting, connection pooling limits, SSL offloading patterns, and syslog configurations.

Security

HAProxy (1)

  • (2023) haproxy.com: The HAProxy Enterprise WAF 🌟 [ADVANCED LEVEL] [COMMUNITY-TOOL] — Product portal for HAProxy's Enterprise Web Application Firewall (WAF). It reviews native layer 7 filtering options, custom protection rule sets, and performance profiles designed to mitigate OWASP risks at high traffic volume.

Performance

Caching (1)

Varnish on RHEL

  • (2021) varnish-cache.org: Installation on RedHat [C CONTENT] [DOCUMENTATION] [COMMUNITY-TOOL] — Deployment documentation detailing how to install and configure Varnish Cache on RedHat Enterprise Linux. Focuses on setting up Varnish as an edge reverse-proxy caching layer to handle high-concurrency HTTP/S read operations in web services.

💡 Explore Related: Cloudflare | Web Servers | Kubernetes Networking

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