Blog
News, guides, and product updates from Obelinf.
Terraform CIDR Planning with Subnet Examples
Use Terraform cidrsubnet and cidrsubnets to divide a VPC range into stable subnet blocks, validate the result, and avoid renumbering deployed networks.
Read more
Terraform CI/CD with GitHub Actions
Build a Terraform GitHub Actions workflow that validates pull requests, creates a reviewed plan, authenticates with AWS using OIDC, and applies after approval.
Read more
Terraform GKE Networking with Secondary Ranges
Build a Google Cloud VPC and GKE Autopilot cluster with Terraform, reserve primary and secondary subnet ranges, and connect Pods and Services to named ranges.
Read more
Test Terraform Network Modules with Mocks
Write Terraform tests for a reusable AWS VPC module, mock the provider to avoid cloud resources, and catch invalid CIDR plans before deployment.
Read more
How to Build a Branch Office Network Inventory
Build a branch office network inventory that links sites, circuits, devices, subnets, and owners, with a rollout process your team can keep current.
Read more
How to Give an AI Agent Safe Access to Network Inventory with MCP
Connect an AI agent to network inventory over MCP with read only credentials, least privilege, reviewable changes, and clear operational guardrails.
Read more
How to Track Which Devices and Services Use a Subnet
Connect subnet, IP, device, VLAN, and service ownership records so you can assess change impact without mistaking an inventory for live traffic data.
Read more
How to Build a Single Source of Truth for Infrastructure with Terraform
Learn how to track Terraform infrastructure as a reliable source of truth. Inspect state, find drift, import existing resources, and organize visibility across environments.
Read more
How to Use Terraform with IPAM for Network Subnets
Connect Terraform to IPAM with this hands on guide. Use Obelinf to find an approved subnet, read its CIDR safely, and plan an AWS network from it.
Read more
Data Center Liquid Cooling Operations
A day to day operating guide for liquid cooled data center halls, covering CDU and coolant loop monitoring, service boundaries, leak response, and preventive maintenance.
Read more
MOPs, SOPs, and EOPs for Data Center Changes
Learn how MOPs, SOPs, and EOPs work together to control data center changes, reduce operational risk, and guide teams through normal work and incidents.
Read more
How to Set Up VLANs in a Homelab
Set up homelab VLANs step by step: plan subnets, configure router and switch ports, map Wi-Fi, add firewall rules, and test isolation.
Read more