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By default digger does not take any opinions on how to manage state. Most users of digger bring their own state management such as an S3 bucket and use digger for the PR automation layer. This can be convinient but it does not come without challenges:
  • Harder to secure access to the bucket in a team setting
  • cross-account state access becomes tricky
  • Lots of terraform config maintenance to set access to the bucket
  • Error prone and no validation in case of s3
  • Lack of versioning and no ability to rollback easily
We are introducing a state manager that is self-hostable and comes with RBAC built in to address these challenges. The advantages are controlling access to state, having a layer of validation and ease of access from any account. The state manager solution seeks to solve all the issues mentioned above:
Drawbacks of Using S3 for Terraform StateMitigations / Best Practices
Harder to secure access to the bucket in a team settingUsing RBAC policies have fine-grained control on who has access to state in the team, integratable with SSO
Cross-account state access becomes trickyFor CI jobs a token can be used regardless of where the terraform resources are provisioned
Lots of Terraform config maintenance to set access to the bucketSupports cloud block so straightforward to integrate with all terraform/opentofu states
Error prone and no validation in case of S3Cloud block comes with validations to protect from mistakes
Lack of versioning and no ability to rollback easilystate manager supports versioning and rollbacks out of the box
The state manager currently supports Amazon S3 as a backend with plans to support GCP buckets, Azure blob storage and more. Currently the state manager is self-hostable. There is no managed version of the state manager. Although it can be used in conjunction with digger