ContentPosts from @kaptain..
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@kaptain shared a link, 5 months, 2 weeks ago
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A Deep Dive into Kubernetes Headless Service

Headless Serviceis a powerfulKubernetesfeature enabling direct pod-to-pod communication forstateful applicationsand preciseservice discoverywithout traditional load balancing.No automatic load balancing, pod IP changes, andspecial use casesmake it ideal for specific scenarios, not general workloads... read more  

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@kaptain shared an update, 5 months, 2 weeks ago
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Agent Sandbox Brings Kernel-Level Guardrails to AI Agents on Kubernetes

gVisor Kata Containers Google Kubernetes Engine (GKE) Kubernetes

Agent Sandbox, a new Kubernetes primitive, was introduced at KubeCon NA 2025 to enhance AI agent management on Kubernetes and Google Kubernetes Engine.

Agent Sandbox Brings Kernel-Level Guardrails to AI Agents on Kubernetes
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@kaptain added a new tool KubeLinter , 6 months ago.
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@kaptain added a new tool Hadolint , 6 months ago.
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@kaptain shared a link, 6 months ago
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In-place Pod resizing in Kubernetes: How it works and how to use it

Kubernetes 1.33 and 1.34 takein-place Pod resource updatesfrom beta to battle-ready. You can now tweak CPU and memory on the fly - no Pod restarts needed. It's on by default. What’s new: memory downsizing with guardrails, kubelet metrics that actually tell you what’s going on, and smarter retries th.. read more  

In-place Pod resizing in Kubernetes: How it works and how to use it
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@kaptain shared a link, 6 months ago
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KubeCon North America 2025 Recap: Federation and

HAProxy just droppedUniversal Mesh, a fresh spin on service mesh design. Forget the per-service sidecars - this model plants high-speed gateways at the network edges instead. Result? Lighter by 30–50% on resources, easier to upgrade, and way less hassle routing traffic across Kubernetes, VMs, and cl.. read more  

KubeCon North America 2025 Recap: Federation and
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@kaptain shared a link, 6 months ago
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Ingress NGINX Is Retiring. Here’s Your Path Forward with HAProxy

TheIngress NGINX projectis riding off into the sunset by March 2026. Time to pick a new horse. One strong contender: theHAProxy Kubernetes Ingress Controller. It matches feature-for-feature, comes with deeper observability, and reloads configs without taking your cluster offline. HAProxy’s not stopp.. read more  

Ingress NGINX Is Retiring. Here’s Your Path Forward with HAProxy
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@kaptain shared a link, 6 months ago
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udwall: A Tool for Making UFW and Docker Play Nice With Each Other

Hexmos droppedudwall, a declarative firewall manager that finally makesUFWandDockerplay nice. Docker’s notorious for bulldozing past UFW rules via iptables. udwall patches that hole. It syncs rules across both, auto-reconciles changes, backs up configs, and plugs cleanly intoAnsible. No more duct-ta.. read more  

udwall: A Tool for Making UFW and Docker Play Nice With Each Other
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@kaptain shared a link, 6 months ago
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Developers don’t care about Kubernetes clusters

Most cloud-native tools obsess over clusters. Not developers. That means poor support for things like promoting code between environments or deploying by feature - not just by repo. The author pushes for a better way: platforms that hide the Kubernetes mess and tame CI/CD. Think feature-driven deplo.. read more  

Developers don’t care about Kubernetes clusters
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@kaptain shared a link, 6 months ago
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The Grafana trust problem

Grafana’s been busy clearing the shelves.Grafana Agent,Agent Flow, andOnCall? All deprecated. The replacement:Grafana Alloy- a one-stop observability agent that handles logs, metrics, traces, and OTEL without flinching. Meanwhile,Mimir 3.0ships with a Kafka-powered ingestion pipeline. More scalabili.. read more Â