Use the live One Login environment in production

[stephencdaly]

What problem does this pull request solve?

Trello card: https://trello.com/c/QkLZra3G/2839-formally-onboard-with-one-login

Our production account should be ready to use, so point production to the live One Login environment.

Things to consider when reviewing

• Ensure that you consider the wider context.
• Does it work when run on your machine?
• Is it clear what the code is doing?
• Do the commit messages explain why the changes were made?
• Are there all the unit tests needed?
• Has all relevant documentation been updated?

Reminders

If you've made changes to the deployer role (files in modules/deployer-access):

• Remember to run make <environment> forms/account apply on the relevant environments (dev, staging and/or prod)
• Check the #govuk-forms-deployment-notifications Slack channel to ensure the apply-forms-terraform-<environment> pipelines have run successfully

[Copilot]

Pull request overview

Updates the production Forms Runner configuration to use the live GOV.UK One Login OIDC environment instead of the integration environment, aligning production authentication with the intended live setup.

Changes:

• Switch govuk_one_login_base_url in production tfvars from oidc.integration.account.gov.uk to oidc.account.gov.uk.
• Remove the now-obsolete TODO note about switching to the live One Login environment.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.