{"id":30288,"date":"2026-01-06T14:41:45","date_gmt":"2026-01-06T09:11:45","guid":{"rendered":"https:\/\/opstree.com\/blog\/?p=30288"},"modified":"2026-01-06T14:53:17","modified_gmt":"2026-01-06T09:23:17","slug":"terraform-with-s3-and-dynamodb","status":"publish","type":"post","link":"https:\/\/opstree.com\/blog\/2026\/01\/06\/terraform-with-s3-and-dynamodb\/","title":{"rendered":"Terraform state locking with S3 and DynamoDB explained"},"content":{"rendered":"

Introduction<\/span><\/b>\u00a0<\/span><\/h2>\n

When managing infrastructure-as-code using Terraform, the\u2002state file is a key\u00a0component, as it keeps track of what resources are associated with your\u00a0configuration and how they are configured relative to one another. Teams will suffer from corrupted state and conflicting updates if they are left on their own to store and coordinate\u00a0state.As\u00a0teams compete for overall dominance, resources are neglected.<\/span>\u00a0<\/span><\/p>\n

One of the primary mechanics to prevent these issues is state locking \u2013 making it so that only one Terraform operation can\u00a0modify\u00a0state\u2002at a time. On\u2002AWS\u00a0this used to be done by using Amazon S3<\/a> (for the state file) and DynamoDB (for the lock). Terraform itself\u2002has also now added native S3 lock support, so you no longer need a DynamoDB table for locking.<\/span>\u00a0<\/span><\/p>\n

<\/p>\n

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Table of Contents<\/h2>\n
    \n
  1. Introduction
    \n<\/a><\/li>\n
  2. What Is State Locking and Why Does It Matter?
    \n<\/a><\/li>\n
  3. The \u201cOld\u201d Method: S3 + DynamoDB Locking
    \n<\/a><\/li>\n
  4. The \u201cNew\u201d Method: Native S3 State Locking
    \n<\/a><\/li>\n
  5. Side-by-Side Comparison
    \n<\/a><\/li>\n
  6. Why This Change Matters
    \n<\/a><\/li>\n
  7. When Should You Not Switch (Yet)?
    \n<\/a><\/li>\n
  8. Next Steps for Readers
    \n<\/a><\/li>\n
  9. Conclusion
    \n<\/a><\/li>\n
  10. Frequently Asked Questions<\/a><\/li>\n<\/ol>\n<\/div>\n

    What is state locking\u00a0 and why does it matter?<\/span><\/b>\u00a0<\/span><\/h2>\n