ContentPosts from @kaptain..
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@kaptain shared a link, 1 week ago
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Running Agents on Kubernetes with Agent Sandbox

Agent Sandbox unveils the Sandbox CRD to map long-lived, singleton AI agents onto Kubernetes. It adds stable identity and lifecycle primitives. It supports runtimes like gVisor and Kata Containers. It enables zero-scale resume. It includes SandboxWarmPool with SandboxClaim and SandboxTemplate to kil.. read more  

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RAM is getting expensive, so squeeze the most from it

The Register contrastszramandzswap. It flags a patch that claims up to 50% fasterzramops. It notes Fedora enableszramby default. It details thatzramprovides compressed in‑RAM swap (LZ4).zswapcompresses pages before writing to disk and requires on‑disk swap... read more  

RAM is getting expensive, so squeeze the most from it
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Securing Production Debugging in Kubernetes

The post prescribes an on-demand SSH gateway pod. It usesshort-lived, identity-bound credentialsandKubernetes RBACto grant scoped, auditable debug sessions. It recommends anaccess brokerthat binds Roles to groups, issues ephemeral certs and OpenSSH user certificates, rotates CAs, enforces command-le.. read more  

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@kaptain shared a link, 1 week ago
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The Invisible Rewrite: Modernizing the Image Promoter

SIG Release rewrote theimage promotercore. It cut 20% of the code. It added apipeline engine,cosignsigning, andSLSAattestations. Signing now sits separate fromsignature replication. Registry reads run in parallel - plan time dropped ~20m → ~2m. Per-request timeouts, retries, and HTTP connection reus.. read more  

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Kubernetes v1.36 - Sneak Peek

Kubernetes v1.36 (Apr 22, 2026) enablesHPAScaleToZeroby default. That lets theHPAuseminReplicas: 0and read only controller-owned pod metrics. The release swaps long-lived image-pull secrets forephemeral KSA tokens. It deprecatesIPVS, retiresIngress NGINX, and aligns withcontainerd 2.x. The release f.. read more  

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@kaptain shared an update, 1 week, 1 day ago
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The Safe Path Off Ingress-NGINX: Ingress2Gateway 1.0

Kubernetes Gateway API Kubernetes

Ingress2Gateway 1.0 has been released to aid migration from Ingress-NGINX to Gateway API before its retirement in March 2026. The tool translates Ingress resources to Gateway API and highlights untranslatable configurations. The release features enhanced annotation support and thorough testing for reliable migration.

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@kaptain shared a link, 2 weeks ago
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How I Use LLMs for Security Work

LLMs like Claude, Cursor, and ChatGPT help tackle complex problems, but prompting them like Google won't cut it. Use role-stacking for varied perspectives (e.g.: you are a senior security engineer and sr. software engineer with experience in Docker, Kubernete..) and always specify your tools for bet.. read more  

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@kaptain shared a link, 2 weeks ago
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Podman fixed every problem I had with Docker, and I switched in an afternoon

Author swappedDockerforPodman. The swap revealed CLI parity and minor networking and volume tweaks. Podmaneschews a centraldaemon. It runs containers as system processes and defaults torootlessviauser namespaces. That cuts privilege exposure and trims baseline overhead... read more  

Podman fixed every problem I had with Docker, and I switched in an afternoon
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@kaptain shared a link, 2 weeks ago
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Why I stopped using NixOS and went back to Arch Linux

After a year onNixOS, the author reverted toArch Linux. They blamed frequent breakage, rebuild loops, and unpredictable regressions after updates. They flaggedNixOS's reproducible config,isolated builds, and multi-generation installs. These swell disk use, force wideglibcrebuilds, and make updates s.. read more  

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Announcing the AI Gateway Working Group

Kubernetes launched theAI Gateway Working Group. It will add standards and declarative APIs to make networking play nice with AI workloads and extend theGateway API. Active proposals attack two gaps.Payload processinginspects and transforms full HTTP payloads using declarative configs, ordered pipel.. read more