Best MCP Servers for DevOps in 2026: 7 Official Servers, Read-Only First
The official MCP servers worth connecting for DevOps work in late 2026: GitHub, Kubernetes, AWS, Terraform, Grafana, Sentry and Datadog. What each exposes, current versions, how to run them read-only, and the risks to plan for.
12 minOct 31, 2026How to Build an AWS VPC With Terraform: Public and Private Subnets (2026)
Build a 3-AZ AWS VPC in Terraform with terraform-aws-modules/vpc 6.7.3 and AWS provider 6.70: public and private subnets, NAT per AZ vs single vs regional, a free S3 gateway endpoint, flow logs, outputs, an SSM connectivity test and fixes for common errors.
16 minOct 20, 2026Platform Engineering vs DevOps vs SRE in 2026: 90% Now Have a Platform
Platform engineering vs DevOps vs SRE explained for 2026: what each one is, how Team Topologies and the CNCF define platforms, what DORA 2024 and 2025 measured (90% platform adoption, 76% with platform teams), and when a platform team is premature.
13 minOct 20, 2026How to Import Existing Resources into Terraform and OpenTofu (2026)
Step-by-step guide to importing existing cloud resources into Terraform 1.16 or OpenTofu 1.13: import blocks with id or identity, -generate-config-out, terraform query for bulk discovery, for_each imports, cleaning generated HCL, proving a no-op plan, and fixing common import errors.
13 minOct 20, 2026Feature Flags vs Canary vs Blue-Green: Progressive Delivery
Feature flags, canary releases and blue-green deployments compared: when to use each, where OpenFeature and flagd stand in 2026, and what recent outages cost.
13 minOct 20, 2026MLOps Platforms Compared 2026: MLflow vs Kubeflow vs SageMaker vs Vertex
An engineer's 2026 comparison of MLflow 3.17, Kubeflow 26.03, SageMaker AI, Vertex AI (now Gemini Enterprise Agent Platform), Databricks, W&B inside CoreWeave Forge, ZenML and Metaflow, with real prices, lock-in risk and a decision table.
13 minOct 20, 2026How to Enforce Pod Security Standards with Kyverno 1.19 (2026)
Step-by-step: enforce Kubernetes Pod Security Standards with Pod Security Admission namespace labels and Kyverno 1.19 CEL policies. Helm install, audit then enforce, policy reports, mutate and generate policies, PolicyExceptions, and fixes for Kyverno webhook failures.
13 minOct 20, 2026Kubernetes Requests and Limits Explained: 8% CPU Used, Resize GA in 1.35
Kubernetes requests and limits in 2026: how QoS classes and oom_score_adj decide who dies, why CPU limits cause CFS throttling, what cgroup v2 changed for OOM kills, in-place resize GA in 1.35, VPA InPlaceOrRecreate, and why clusters still use 8% of their CPU.
13 minOct 20, 2026Kyverno vs Gatekeeper vs ValidatingAdmissionPolicy in 2026
Kubernetes policy engines compared for 2026: Kyverno 1.19 (CNCF graduated, ClusterPolicy deprecated for CEL), OPA Gatekeeper 3.23 with CEL and generated VAPs, built-in ValidatingAdmissionPolicy (GA 1.30) and MutatingAdmissionPolicy (stable 1.36), latency numbers, and when to use which.
13 minOct 20, 2026Kubernetes Cost Optimization in 2026: 8% CPU Use and What Fixes It
Kubernetes cost optimisation as of October 2026: Cast AI measures 8% CPU and 20% memory utilisation, Datadog puts 83% of container cost on idle, plus OpenCost vs IBM Kubecost 3.0, Karpenter 1.15 Balanced consolidation, in-place resize, spot and Graviton.
12 minOct 20, 2026Kubernetes Autoscaling: HPA vs VPA vs KEDA vs Karpenter (2026)
Kubernetes autoscaling for 2026: when to use HPA, VPA, KEDA, Cluster Autoscaler or Karpenter, what changed in 1.37, and the mistakes that cost money.
13 minOct 20, 2026Is Kubernetes Still Worth It in 2026? Costs and Alternatives
Is Kubernetes worth it for a small team in 2026? What it really costs on EKS, GKE and AKS, when ECS, Cloud Run or Nomad fit better, and how to decide.
12 minOct 20, 2026Argo CD vs Flux in 2026: GitOps After Argo CD 3.5 and Flux 2.9
Argo CD vs Flux in 2026: what changed in Argo CD 3.0 to 3.5 and Flux 2.6 to 2.9, who maintains Flux after Weaveworks, what the CNCF surveys say about adoption, how each handles multi-cluster and secrets, and where GitOps costs more than it saves.
13 minOct 20, 2026How to Speed Up GitHub Actions CI: Caching, Sharding, Docker (2026)
A step-by-step guide to faster GitHub Actions in 2026: measure job timings, cancel stale runs, use setup-node, setup-python and setup-go caching, actions/cache v6, buildx type=gha layer caching, matrix test sharding and larger runners, plus a cache-miss troubleshooting table.
13 minOct 20, 2026How to Fix 502 Bad Gateway and 504 Gateway Timeout Errors (2026)
Fix 502 Bad Gateway and 504 Gateway Timeout step by step: find which hop generated the error, read NGINX upstream errors, fix keepalive and idle timeout mismatches (ALB 60s, GCP 600s), Kubernetes readiness and rollout gaps, Gateway API timeouts and Cloudflare 520 to 526.
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