Terraform Cloud on SRE Engineering Practicehttps://www.sre.wang/en/tags/terraform-cloud/Recent content in Terraform Cloud on SRE Engineering PracticeSRE Engineering Practicehttps://www.sre.wang/share-card-square.jpghttps://www.sre.wang/share-card-square.jpgHugo -- gohugo.ioenWed, 07 Oct 2026 01:11:40 +0800When Your Self-Hosted Terraform Backend Cracks at 30 Engineers: 6 Engineering Decisions and a TCO Ledger from Moving to HCP Terraformhttps://www.sre.wang/en/posts/terraform-hcp-cloud-migration/Wed, 07 Oct 2026 01:11:40 +0800https://www.sre.wang/en/posts/terraform-hcp-cloud-migration/After our team grew from 5 to 30 engineers, the self-hosted Terraform backend (S3 + lock table + hand-rolled CI scripts) started failing weekly: 17 state lock conflicts, two production environments broken by well-meaning manual applies, credentials leaking into CI logs. This is the decision log of our migration to HCP Terraform (formerly Terraform Cloud): six engineering decisions covering SaaS vs self-hosted platform selection, workspace organization, state migration pitfalls, Sentinel policy-as-code, CI/CD integration, and a real TCO ledger with an OpenTofu self-hosting comparison.