🎧 AUDIODOCS: Official documentation of popular open-source projects, adapted and narrated for audio. Learn while commuting, exercising, or doing chores.
Master CoreDNS, the default DNS server for Kubernetes clusters. This 72-minute episode covers the complete v1.13.1 documentation - from plugin architecture to production configuration.
Every time a pod looks up a service, every time kubectl exec needs to find a pod - CoreDNS handles that resolution. If you're debugging DNS issues or optimizing cluster performance, this comprehensive audio guide has you covered.
WHAT YOU'LL LEARN:00:00 - Introduction & Overview02:30 - Project Context: CNCF Graduation & Why CoreDNS Replaced kube-dns06:00 - Architecture: The Plugin "Lego Blocks" Model12:00 - Core Concepts: Server Blocks, Zones, Plugin Ordering18:00 - Installation: Kubernetes, Standalone, Docker, Package Managers24:00 - Corefile Configuration Mastery30:00 - Common Setups: Recursive Resolver, Authoritative DNS36:00 - kubernetes Plugin Deep Dive: Service Discovery & Pod Modes42:00 - forward Plugin: Upstream Servers, Health Checking, Policies48:00 - cache Plugin: TTL Handling, Prefetch, Denial Caching54:00 - file & hosts Plugins: Zone Files, /etc/hosts Style Records60:00 - errors, log, health & ready Plugins64:00 - prometheus Plugin: Metrics & Grafana Dashboards68:00 - rewrite & acl Plugins: Query Modification, Access Control72:00 - DNS Security: DNSSEC, DNS over TLS, DNS over HTTPS76:00 - Additional Plugins & Key Takeaways
LINKS:Full Transcript & Episode Page:https://platformengineeringplaybook.com/audiodocs/coredns/v1.13.1
CoreDNS Official Website:https://coredns.io/
CoreDNS GitHub Repository:https://github.com/coredns/coredns
CoreDNS Documentation:https://coredns.io/manual/toc/
CoreDNS Plugin Documentation:https://coredns.io/plugins/
CNCF Project Page:https://www.cncf.io/projects/coredns/
Platform Engineering Playbook:https://platformengineeringplaybook.com
KEY TOPICS COVERED:- Plugin architecture & execution ordering- Corefile configuration syntax- Kubernetes service discovery (ClusterIP, headless services, endpoint slices)- DNS caching strategies & TTL management- Forwarding to upstream DNS servers- Health checks & readiness probes for Kubernetes- Prometheus metrics integration- Query rewriting & access control lists- DNS security: DNSSEC validation, DNS over TLS (port 853), DNS over HTTPS- Production best practices & testing configurations
WHO THIS IS FOR:Platform engineers, SREs, and DevOps engineers who need to understand, configure, or troubleshoot Kubernetes DNS. Assumes familiarity with Kubernetes concepts.
---📜 LICENSE & ATTRIBUTIONThis AudioDocs episode is a derivative work based on the official CoreDNS documentation.Original documentation: https://coredns.io/manual/toc/License: Apache License 2.0 (https://github.com/coredns/coredns/blob/master/LICENSE)© CoreDNS Authors
This audio transforms written documentation into educational audio format with proper attribution as required by the Apache 2.0 license.---
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