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coolvds.com â€ș Blog â€ș DevOps & Infrastructure

Stop Using Ping: A Sysadmin’s Guide to Infrastructure Monitoring at Scale

· CoolVDS Team

Is your monitoring strategy just a cron job and a prayer? In 2015, 'uptime' isn't enough. We explore the transition from Nagios to time-series metrics, how to detect the dreaded CPU Steal on virtual machines, and why hosting in Norway matters for your data logs.

coolvds.com â€ș Blog â€ș DevOps & Infrastructure

Docker Swarm vs. Kubernetes 1.0 vs. Mesos: Orchestrating Chaos in 2015

· CoolVDS Team

Navigating the nascent container orchestration wars of 2015. We benchmark Docker Swarm, the newly released Kubernetes 1.0, and Apache Mesos to see which stack belongs on your Norwegian VPS infrastructure.

coolvds.com â€ș Blog â€ș DevOps & Infrastructure

Kubernetes 1.0 Networking: Surviving the Overlay Jungle in Production

· CoolVDS Team

Kubernetes 1.0 is finally here, but the flat-networking model is causing headaches for early adopters. We dissect the performance costs of Flannel vs. Weave and why your underlying VPS architecture decides your cluster's fate.

coolvds.com â€ș Blog â€ș DevOps & Infrastructure

Beyond the Hype: Pragmatic Serverless Patterns for Norwegian Enterprises

· CoolVDS Team

AWS Lambda and the 'Serverless' movement are dominating headlines in 2015, but is the technology ready for mission-critical Nordic workloads? We analyze the latency trade-offs, vendor lock-in risks, and hybrid architectures that combine FaaS agility with the raw power of KVM virtualization.

coolvds.com â€ș Blog â€ș DevOps & Infrastructure

Docker in Production? Not Without These 5 Kernel-Level Security Fixes

· CoolVDS Team

It is 2015 and Docker is eating the world, but 'root' inside a container is still 'root' on the host. We break down the exact flags and KVM architectures you need to secure your Norwegian infrastructure against container breakout.

coolvds.com â€ș Blog â€ș DevOps & Infrastructure

The Container Orchestration Wars: Kubernetes vs. Mesos vs. Swarm (June 2015 Edition)

· CoolVDS Team

Docker is taking over the world, but running it in production is a battlefield. We benchmark the three leading orchestration contenders—Kubernetes, Mesos/Marathon, and Docker Swarm—and analyze why your underlying VPS architecture decides who wins.

coolvds.com â€ș Blog â€ș DevOps & Infrastructure

Is "Serverless" Just Vendor Lock-in? Building Event-Driven Architectures on Bare Metal

· CoolVDS Team

With the recent buzz around AWS Lambda, everyone is talking about eliminating servers. But for Norwegian businesses, the latency to Ireland and vendor lock-in are dealbreakers. Here is how to implement serverless patterns using Docker and KVM without losing control.