Terraform upgrade to version 1.2.5 - all modules in infrastructure under terraform/modules/

[vijay-veeranki]

Background

Upgrading to Terraform v1.2.5 https://github.com/ministryofjustice/cloud-platform-infrastructure/tree/main/terraform/modules

Upgrade Paths: 0.14 - 1.0.11 1.0.11 to currently 1.2.5

Proposed user journey

• Upgrade modules to v1.0.11 first
• Once it is applied successfully
• Upgrade the modules to version 1.2.5

Approach

• Update the terraform version for each module to v1.0.11
• Make sure there are no changes, and if there are any minor changes update accordingly ( executing a terraform plan resulting in no proposed changes is crucial. Otherwise, pending changes can add additional unknowns to the upgrade process.)
• Create a new release for 1.011
• Update the module version in the infrastructure repo
• Apply the changes (Please note that completing the upgrade will require running a successful terraform apply for your target version)
• Update the terraform version for each module to v1.2.5
• • Make sure there are no changes, and if there are any minor changes update accordingly ( executing a terraform plan resulting in no proposed changes is crucial. Otherwise, pending changes can add additional unknowns to the upgrade process.)
• Create a new release for 1.2.5
• Update the module version in the infrastructure repo
• Apply the changes (Please note that completing the upgrade will require running a successful terraform apply for your target version)

Which part of the user docs does this impact

https://runbooks.cloud-platform.service.justice.gov.uk/upgrade-terraform-version.html#upgrade-terraform-version

Questions / Assumptions

No breaking changes in v0.15 https://github.com/hashicorp/terraform/blob/v0.15/CHANGELOG.md

Definition of done

• [ ] Terraform version upgraded to v1.2.5

Reference

How to write good user stories