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Sebastian Stadil

CEO at ScalrSebastian Stadil is the CEO at Scalr. He has over 15 years of devops experience, and started his career with AWS in 2004. Sebastian was also an early advisor to Microsoft Azure and Google Cloud.

Articles by Sebastian Stadil

Should You Migrate Off Terraform Cloud? A Stay-or-Go Framework (2026)

A decision framework for teams weighing whether to leave HCP Terraform (Terraform Cloud): the real reasons to go, the legitimate reasons to stay, and a risk-reward breakdown of the migration itself.
Sebastian StadilJune 18, 2026

What Does It Take to Migrate Off Terraform Cloud? Effort, Timeline & Risk (2026)

A realistic look at the effort, timeline, and risk of migrating off HCP Terraform (Terraform Cloud): the phases, the automated tooling each platform offers, the genuinely manual steps, and what real migrations of 500+ and 1,000+ workspaces actually took.
Sebastian StadilJune 18, 2026
Thumbnail of Should You Renew Terraform Cloud? A 2026 Decision Guide

Should You Renew Terraform Cloud? A 2026 Decision Guide

Your Terraform Cloud contract is up for renewal. Here's a 2026 framework for choosing between renewing, renegotiating, migrating to a managed alternative, or moving to open source — with current pricing and the real switching costs.
Sebastian StadilJune 13, 2026
Thumbnail of How to Migrate Off Terraform Cloud: A Platform Engineer's Decision Guide (2026)

How to Migrate Off Terraform Cloud: A Platform Engineer's Decision Guide (2026)

A practical decision guide for platform engineers migrating off Terraform Cloud in 2026: whether to leave, what to require in a replacement, how Scalr, Spacelift, env0, and Atlantis compare, what migration actually involves, and how the cost math works.
Sebastian StadilJune 10, 2026
Thumbnail of Spacelift Alternatives: Spacelift vs Scalr, Terraform Cloud, env0, and Atlantis (2026)

Spacelift Alternatives: Spacelift vs Scalr, Terraform Cloud, env0, and Atlantis (2026)

A Spacelift-anchored comparison guide for 2026: how Spacelift's concurrency-based pricing and tier gates work, how it compares to Scalr, Terraform Cloud, env0, and Atlantis, and decision rules for choosing between them.
Sebastian StadilJune 10, 2026
Thumbnail of How to Evaluate IaC Platform Pricing Models

How to Evaluate IaC Platform Pricing Models

A buyer's evaluation framework for the three IaC platform pricing models: concurrency-based (Spacelift), resources-under-management (HCP Terraform), and usage-based, per-run (Scalr). What each model optimizes for, and how each performs across the dimensions that matter.
Sebastian StadilMay 26, 2026
Thumbnail of CI/CD and GitOps for Terraform & OpenTofu

CI/CD and GitOps for Terraform & OpenTofu

Comprehensive guide to building reliable CI/CD pipelines and implementing GitOps workflows for Terraform and OpenTofu infrastructure automation.
Sebastian StadilMarch 31, 2026
Thumbnail of HCP Terraform Free Tier in 2026: What Survived the EOL

HCP Terraform Free Tier in 2026: What Survived the EOL

The legacy HCP Terraform Free plan reached end-of-life on March 31, 2026. What replaced it, the 500-managed-resource cap, current pricing, and where to go next.
Sebastian StadilMarch 31, 2026

How to Set Up Scheduled Drift Detection for Terraform and OpenTofu

Scheduled drift detection catches the manual console changes, auto-scaling tweaks, and emergency hotfixes that diverge your infrastructure from its Terraform or OpenTofu state. This guide compares cron, CI/CD, and platform-native approaches.
Sebastian StadilMarch 31, 2026
Thumbnail of Terraform State & Backends: The Complete Guide

Terraform State & Backends: The Complete Guide

Learn how to set up and customize Terraform backend configs with terraform init. Step-by-step examples for remote state, workspaces, and CI/CD.
Sebastian StadilMarch 31, 2026
Thumbnail of Migrating Off Terraform Cloud/Enterprise: A Complete Guide

Migrating Off Terraform Cloud/Enterprise: A Complete Guide

Compare Terraform self-hosting routes: TFE, Spacelift, Scalr. See setup demands, feature gaps, costs, and which platform fits your infra needs.
Sebastian StadilMarch 31, 2026
Thumbnail of Terraform & Terragrunt with Atlantis: The Complete Guide

Terraform & Terragrunt with Atlantis: The Complete Guide

Terraform Atlantis brings infrastructure automation into your PR workflows. This guide covers implementing, securing, and scaling Atlantis in prod.
Sebastian StadilMarch 31, 2026
Thumbnail of Terraform Import: How to Import Existing Resources Into Terraform

Terraform Import: How to Import Existing Resources Into Terraform

Use the terraform import command and import blocks to bring existing AWS, Azure, and GCP resources into Terraform state, with examples, FAQs, and bulk-import patterns.
Sebastian StadilMarch 31, 2026
Thumbnail of Terraform Provisioners: The Complete Guide

Terraform Provisioners: The Complete Guide

Master Terraform provisioners: learn what they do, when to use or avoid them, and best-practice tips for cleaner, more reliable infrastructure code.
Sebastian StadilMarch 31, 2026

Case Study: Why Ably Switched from Terraform Cloud to Scalr

Scalr is a cost effective, drop-in replacement for Terraform Cloud, with feature parity and many quality of life improvements.
Sebastian StadilMarch 10, 2026

Case Study: Sierra-Cedar's Customer Journey with Scalr

Scalr is a cost effective, drop-in replacement for Terraform Cloud, with feature parity and many quality of life improvements.
Sebastian StadilMarch 10, 2026

Case Study: TV4's Migration from Terraform Cloud to Scalr

Scalr is a cost effective, drop-in replacement for Terraform Cloud, with feature parity and many quality of life improvements.
Sebastian StadilMarch 10, 2026
Thumbnail of Terraform tfvars: A Practical Guide to .tfvars Files and Variables

Terraform tfvars: A Practical Guide to .tfvars Files and Variables

A comprehensive guide to mastering input variables, output values, local values, and tfvars files in Terraform and OpenTofu for 2026.
Sebastian StadilMarch 9, 2026
Thumbnail of Terraform Strings: The Complete Guide

Terraform Strings: The Complete Guide

Master Terraform strings: learn advanced templating, heredocs, and built-in functions for cleaner, reusable HCL code in minutes.
Sebastian StadilMarch 9, 2026
Thumbnail of The Developer's Guide to HCL

The Developer's Guide to HCL

What is HCL? Learn the basics of HashiCorp Configuration Language, its purpose, design goals, and how it compares to JSON and YAML for Infrastructure as Code.
Sebastian StadilMarch 9, 2026
Thumbnail of Terraform Expressions, Functions & Data Sources: A Comprehensive Guide

Terraform Expressions, Functions & Data Sources: A Comprehensive Guide

Master Terraform’s built-in functions with clear examples, common pitfalls, and pro tips for cleaner, faster IaC workflows.
Sebastian StadilMarch 6, 2026
Thumbnail of Terragrunt: The Complete Guide for Terraform and OpenTofu Users

Terragrunt: The Complete Guide for Terraform and OpenTofu Users

Learn Terragrunt basics, modular Terraform, DRY configs, and automation in this beginner-friendly step-by-step guide.
Sebastian StadilMarch 6, 2026
Thumbnail of Choosing Your Engine: Top Continuous Delivery Tools and Trends for 2025

Choosing Your Engine: Top Continuous Delivery Tools and Trends for 2025

Explore 2025’s top continuous delivery tools, key trends and practical criteria to pick the right CD engine for faster, safer releases.
Sebastian StadilMarch 6, 2026
Thumbnail of Getting Started with Terraform Vulnerability Scanning

Getting Started with Terraform Vulnerability Scanning

Terraform vulnerability scanning is the practice of automatically analyzing infrastructure code to find & fix security issues before they reach production.
Sebastian StadilMarch 6, 2026
Thumbnail of Terraform Pull Request Automation: A Complete Guide

Terraform Pull Request Automation: A Complete Guide

Comprehensive guide to implementing pull request-based Terraform workflows, from basic automation to enterprise-scale governance.
Sebastian StadilMarch 6, 2026
Thumbnail of How to Manage GitLab with Terraform

How to Manage GitLab with Terraform

The guide covers using the Terraform provider for GitLab to configure, authenticate, create core resources like groups & projects, and use the Terraform state backend and module registry.
Sebastian StadilMarch 6, 2026
Thumbnail of IaC Security: Securing Your Terraform and OpenTofu Infrastructure

IaC Security: Securing Your Terraform and OpenTofu Infrastructure

Comprehensive guide to securing Terraform, covering threat modeling, state file security, secret management, static analysis tools, DevSecOps practices, and best practices for 2026.
Sebastian StadilMarch 6, 2026
Thumbnail of Integrating Terraform with Backstage

Integrating Terraform with Backstage

Learn how to connect Terraform workflows to Backstage so teams can provision infrastructure self-service with approved modules and policy guardrails.
Sebastian StadilMarch 6, 2026
Thumbnail of Managing Multiple Terraform Environments: A Practical Guide

Managing Multiple Terraform Environments: A Practical Guide

Learn step-by-step strategies, workspace tips, and pipeline tricks to manage dev, staging & prod with Terraform safely and at scale.
Sebastian StadilMarch 6, 2026
Thumbnail of The No-Nonsense Guide to ArgoCD

The No-Nonsense Guide to ArgoCD

ArgoCD isn't perfect. Here's a no-nonsense guide to its common problems, from sync timeouts to Helm hell, and how to actually fix them.
Sebastian StadilMarch 6, 2026
Thumbnail of Streamlining AWS IAM Role Creation with Terraform: A Practical Guide

Streamlining AWS IAM Role Creation with Terraform: A Practical Guide

Automate AWS IAM role creation with Terraform. This step-by-step guide covers modules, variables and least-privilege policies for fast, secure, reusable roles.
Sebastian StadilMarch 6, 2026
Thumbnail of Structuring Terraform and OpenTofu: Part 2/4

Structuring Terraform and OpenTofu: Part 2/4

Learn production-ready Terraform & OpenTofu layouts, reusable modules, env isolation, and CI/CD patterns in this 4-part platform-engineering guide.
Sebastian StadilMarch 6, 2026
Thumbnail of Structuring Terraform and OpenTofu: Part 3/4

Structuring Terraform and OpenTofu: Part 3/4

Part 3 of the Platform Engineer’s guide shows how to layer Terraform/OpenTofu stacks across envs, link modules via remote state, and keep configs lean.
Sebastian StadilMarch 6, 2026
Thumbnail of Structuring Terraform and OpenTofu: Part 4/4

Structuring Terraform and OpenTofu: Part 4/4

Part 4 of a Platform Engineer’s guide details structuring Terraform & OpenTofu repos for scalable environments, policy-driven governance and efficient CI/CD.
Sebastian StadilMarch 6, 2026
Thumbnail of Structuring Terraform and OpenTofu: Part 1/4

Structuring Terraform and OpenTofu: Part 1/4

Platform engineer’s 4-part guide to structuring Terraform & OpenTofu—modules, envs, remote state, CI/CD, testing and governance, step by step.
Sebastian StadilMarch 6, 2026
Thumbnail of Terraform Troubleshooting, Optimization and Error Resolution

Terraform Troubleshooting, Optimization and Error Resolution

Speed up Terraform runs, shrink state files, and keep infrastructure code clean with the actionable tips in this Terraform Optimization Guide.
Sebastian StadilMarch 6, 2026
Thumbnail of Terraform State Lock Errors: Emergency Solutions & Prevention Guide

Terraform State Lock Errors: Emergency Solutions & Prevention Guide

Fix Terraform state lock errors fast and prevent them: emergency unlock steps, root causes, and best practices to avoid future lockouts.
Sebastian StadilMarch 6, 2026
Thumbnail of Top 10 Continuous Delivery Tools of June 2025

Top 10 Continuous Delivery Tools of June 2025

See the top 10 continuous-delivery tools for June 2025—features, pricing, and standout pros to help you choose the right CI/CD platform.
Sebastian StadilMarch 6, 2026
Thumbnail of Top 10 GitOps Tools for 2025: A Comprehensive Guide

Top 10 GitOps Tools for 2025: A Comprehensive Guide

Explore the top 10 GitOps tools for 2025—features, pros, and best use cases—to streamline Kubernetes releases and automate end-to-end CI/CD.
Sebastian StadilMarch 6, 2026
Thumbnail of AWS Provider Memory Explosion: The v4.67.0+ Survival Guide

AWS Provider Memory Explosion: The v4.67.0+ Survival Guide

Terraform AWS provider v4.67.0 triggers a memory explosion; learn the cause, impact, and fast fixes in our practical survival guide.
Sebastian StadilMarch 4, 2026
Thumbnail of AWS Provider v6.0: What's Breaking in April 2025

AWS Provider v6.0: What's Breaking in April 2025

AWS Terraform Provider v6 lands April 2025—discover the breaking changes, impacted resources, and quick fixes you need for a smooth, surprise-free upgrade.
Sebastian StadilMarch 4, 2026
Thumbnail of Bridgecrew Terraform: Pricing, Use Cases, Best Practices & Alternatives

Bridgecrew Terraform: Pricing, Use Cases, Best Practices & Alternatives

Bridgecrew scans Terraform code for security issues before deployment. Free tier includes 50 resources, paid plans start at $99/mo with Checkov.
Sebastian StadilMarch 4, 2026
Thumbnail of Empty Terraform State File Recovery

Empty Terraform State File Recovery

Lost Terraform state to an empty .tfstate? Learn quick recovery steps with backends, locking, state history & best practices to restore infra safely.
Sebastian StadilMarch 4, 2026
Thumbnail of Enforcing Policy as Code in Terraform: A Comprehensive Guide

Enforcing Policy as Code in Terraform: A Comprehensive Guide

Master Policy as Code in Terraform—use OPA, Sentinel & Scalr to automate compliance, prevent drift, and enforce cloud governance without slowing dev teams.
Sebastian StadilMarch 4, 2026
Thumbnail of How to use the Terraform Okta Provider

How to use the Terraform Okta Provider

Automate Okta with Terraform: step-by-step code, security best practices, and tips from a developer’s guide to resilient identity management.
Sebastian StadilMarch 4, 2026
Thumbnail of Mastering Kubernetes with Terraform: A Provider Deep Dive

Mastering Kubernetes with Terraform: A Provider Deep Dive

Master Terraform's Kubernetes provider: build clusters, manage resources, and automate CI/CD with code-driven best practices and hands-on examples.
Sebastian StadilMarch 4, 2026
Thumbnail of Securing Terraform Atlantis in production (June 2025)

Securing Terraform Atlantis in production (June 2025)

Step-by-step guide to harden Terraform Atlantis: secure secrets, enforce policies, isolate environments and automate audits for production.
Sebastian StadilMarch 4, 2026
Thumbnail of Terraform Atlantis vs GitHub Actions: Complete IaC Automation Comparison 2025

Terraform Atlantis vs GitHub Actions: Complete IaC Automation Comparison 2025

Compare Terraform Atlantis and GitHub Actions for IaC: setup, workflow, security, cost & scale—get the facts to choose the right automation tool.
Sebastian StadilMarch 4, 2026