DR - Update MP modules to not be region specific

[davidkelliott]

User Story

As an MP user
I want to be able to easily change module regions
So that in a DR situation I can change the region without needing a new module release

Value / Purpose

To make changing regions during a DR scenario as easily as possible.

Useful Contacts

No response

Additional Information

See current DR guidance here which requires regions to be updated in all of our modules - https://user-guide.modernisation-platform.service.justice.gov.uk/runbooks/dr-process.html#repo-module-list

Proposal / Unknowns

Proposal

Update modules so that there is an input for the region. The default region should be eu-west-2 (or whatever the module currently uses) so that it isn't a breaking change.

This region can then be set once at a member account level and easily changed.

Definition of Done

• Modules updated to accept different regions (with current region as default)
• User docs have been updated
• Another team member has reviewed
• Tests are green

[dms1981]

This might just be a question of assessing what resources are region-specific, because the region to build a thing in is based on the provider, not a variable in a resource (generally!).

[dms1981]

Further to my previous, the scope here is all of our modules. That's a lot of modules.

[ep-93]

https://docs.google.com/document/d/1mJWlTyjezla-WSJV3ul8UMsfaHdWqi_xoHYboYbONVQ/edit?usp=sharing

[ep-93]

Fixed one, looking now at config management

https://github.com/search?q=repo%3Aministryofjustice%2Fmodernisation-platform-configuration-management%20%20eu-west-2&type=code

yml files have it hardcoded in.

[ep-93]

Docs PR = #8192

[mikereiddigital]

Hi @ep-93 if you confirm the DoDs are done I will review :)

[ep-93]

Docs have been merged in, ready for review.

[mikereiddigital]

Have reviewed the changes & will move to done.