Platform Engineering Playbook Podcast

CoreDNS v1.13.1 - Listen to the Docs with AudioDocs

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🎧 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 & Overview
02:30 - Project Context: CNCF Graduation & Why CoreDNS Replaced kube-dns
06:00 - Architecture: The Plugin "Lego Blocks" Model
12:00 - Core Concepts: Server Blocks, Zones, Plugin Ordering
18:00 - Installation: Kubernetes, Standalone, Docker, Package Managers
24:00 - Corefile Configuration Mastery
30:00 - Common Setups: Recursive Resolver, Authoritative DNS
36:00 - kubernetes Plugin Deep Dive: Service Discovery & Pod Modes
42:00 - forward Plugin: Upstream Servers, Health Checking, Policies
48:00 - cache Plugin: TTL Handling, Prefetch, Denial Caching
54:00 - file & hosts Plugins: Zone Files, /etc/hosts Style Records
60:00 - errors, log, health & ready Plugins
64:00 - prometheus Plugin: Metrics & Grafana Dashboards
68:00 - rewrite & acl Plugins: Query Modification, Access Control
72:00 - DNS Security: DNSSEC, DNS over TLS, DNS over HTTPS
76:00 - 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.

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📜 LICENSE & ATTRIBUTION
This 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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#CoreDNS #Kubernetes #DNS #CNCF #DevOps #PlatformEngineering #K8s #CloudNative #SRE #AudioDocs #KubernetesDNS #ServiceDiscovery

TAGS:

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