feat: adds tagging the TGW attachment + associating / propagating TGW RTB + creating TGW routes

[Gowiem]

major revision

This PR does a good overhaul of the module: It updates to modern practices / syntax + uses new syntax added in TF 1.3 + adds some new, significant functionality + introduces a breaking change (changes var from string => bool type). Considering that, I believe we should release this as 1.0.

what

• Adds tagging the TGW attachment
• Adds associating + propagating the TGW attachment if TGW route table given
• Adds ability to create TGW routes on the given route table
• Fixes the type of var.vpn_connection_static_routes_only
• Fixes var.vpc_id being required as this should not be required with TGW VPN Connection
• Updates to require TF 1.3 and above
• Removes the null provider
• Updates vpn_connection_customer_gateway_configuration to sensitive = true
• Adds transit_gateway_attachment_id as an output

why

• Adds more flexibility + usefulness when working with a TGW <> VPN connection
• var.vpn_connection_static_routes_only - Types should be correct, so this was bugging me. Is this possibly a 0.11 holdout that we're finding in 2024? I didn't check the blame, but that'd be funny.
• Requires 1.3+ TF purely because this should be a 1.0 of this module and I think we should start using new functionality (required here as I used optional in var.transit_gateway_routes)
• null provider no longer needed - Likely a holdout from an old version of terraform-null-label (this module had some dust on it)

references

• Fixes #36 which was causing tests to fail
• Fixes #35
• Fixes #32

[Gowiem]

/terratest

[Gowiem]

Submitting this as a major revision

This PR does a good overhaul of the module: It updates to modern practices / syntax + uses new syntax added in TF 1.3 + adds some new, significant functionality + introduces a breaking change (changes var from string => bool type). Considering that, I believe we should release this as 1.0.

[Gowiem]

/terratest

[Gowiem]

/terratest

[Gowiem]

/terratest

[Gowiem]

/terratest

[Gowiem]

/terratest

[Gowiem]

/terratest

[Gowiem]

/terratest

[Gowiem]

/terratest