Blogs

Notes from the infrastructure, written as we build it.

DevOps and AI engineering write-ups from the team behind Newspresso Tech — real clusters, real tools, no filler.

01 / BLOGS

Latest posts

Illustration of a robot mascot beside a workflow diagram connecting a webhook to HubSpot, Gmail, and Slack icons, titled 'Building an AI-Powered Lead Qualification Workflow in n8n'
Apr 9, 20269 min read

How I Built an AI-Powered Lead Qualification & Routing System in n8n (Production-Ready)

A webhook-driven n8n workflow that validates inbound leads, scores intent with a guardrailed AI agent, and routes each one — CRM deal, Slack ping, drafted email, or just a log line — based on how hot it actually is.

AI Automationn8nLead Generation
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Dark workflow diagram behind the title 'AI Powering Viral Ads: A Deep Dive into Automation — Unlock limitless creativity with intelligent workflows'
Feb 13, 20269 min read

Building an AI-Powered Ad Generation System for Businesses 💸

An end-to-end n8n workflow that turns a product name, description, and a couple of photos into a fully edited, titled, thumbnailed video ad — uploaded straight to YouTube, no manual editing.

AI Automationn8nGenerative AI
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n8n workflow diagram of a webhook flowing into a code node, an IF gate, then success and error response nodes, behind the title 'How I Built a Production-Safe Webhook Intake System in n8n'
Jan 22, 20267 min read

How I Built a Production-Safe Webhook Intake System in n8n

Why most automations fail before AI or CRMs ever get involved — and the defensive n8n webhook pattern that stops bad data at the door: validate, normalize, respond deterministically, no silent failures.

AI Automationn8nWebhooks
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Glowing 3D grid of illuminated blocks labeled 'Huge Pages', representing large contiguous memory pages
Jan 8, 20266 min read

Improve Performance of Memory-Intensive Applications on an EKS Cluster Using Huge Pages

Why memory-heavy workloads like ML model serving get unstable under load — page table overhead, TLB misses, fragmentation — and how configuring huge pages on Karpenter-provisioned EKS nodes fixes it.

KubernetesAWS EKSHuge Pages
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Diagram showing pending and unschedulable pods triggering Karpenter to provision just-in-time capacity, then consolidate it into optimized capacity
Oct 5, 20257 min read

Intelligently Scale Your Nodes in an EKS Cluster Using Karpenter: A Guide

Why Karpenter beats the vanilla Cluster Autoscaler on cost and speed, how its two core resources — EC2NodeClass and NodePool — actually work, and how to install it and watch it provision a node for a pending pod.

KubernetesKarpenterAWS EKS
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Comic panel of a ship's captain at the helm explaining that Kubernetes comes from a Greek word for helmsman or pilot, which geeks shorten to K8s
Sep 14, 20257 min read

Bootstrap Solution to Cache Heavy Container Images Using DaemonSets & Karpenter in an EKS Cluster

A build-it-yourself image-caching solution: use Karpenter to scale up a tainted node, a DaemonSet to pre-pull heavy images onto it, then untaint the node so real workloads can schedule on it instantly.

KubernetesDaemonSetKarpenter
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Isometric illustration of isolated, color-coded tenant blocks on a shared platform, ringed by shields and locks
Sep 21, 20247 min read

Setting Guardrails in a K8s Cluster in a Multi-Tenant Environment 🔐

Multi-tenant Kubernetes clusters cut infrastructure cost by sharing one cluster across teams — but without guardrails, that shared blast radius means one tenant can leak into another. Here's how to lock it down with Kyverno policies and NetworkPolicies.

KubernetesKyvernoMulti-Tenancy
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Illustration of a person pushing an oversized, overheating shipping container toward an hourglass, labeled 'Taking minutes to spin up'
Aug 31, 20246 min read

How Do I Reduce Startup Time of Heavy Pods in K8s? 🤯

Four ways to stop heavy container images from taking minutes to pull on EKS — ECR Pull Through Cache, eStargz, Spegel/kube-fledged, and Bottlerocket OS + Karpenter — with the real trade-off behind each one.

KubernetesAWS EKSImage Caching
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Isometric illustration of an Amazon EKS cluster provisioning on-demand and spot GPU node capacity
Aug 28, 20248 min read

Handling AI/ML Workloads on NVIDIA GPU Nodes in Kubernetes: A Guide

A practical walkthrough of provisioning and autoscaling NVIDIA GPU nodes on an EKS cluster with the NVIDIA GPU Operator and Karpenter, so ML engineers can train and test models without anyone hand-managing GPU infrastructure.

KubernetesAWS EKSNVIDIA GPU Operator
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