v2.0.0 IPv6 and alternate use cases

Version v2.0.0 has breaking changes, documented here.

The highlights:

• Full support for IPv6
• Addresses nearly all open issues and PRs against version 1
• More inputs made optional, allowing you, among other things, to create subnets without direct access to the public internet
• Additional control over whether or not certain resources are created, allowing you to substitute your own resources (e.g. a combination bastion host and NAT instance instead of the NAT instance this module creates)
• Additional outputs allowing you to connect and configure outside resources to work with this module's resources
• Ability to use a single NAT Gateway to cover all the private subnets (for cost savings in non-critical environments)
• Optional inputs converted to lists due to Terraform limitations.
• subnet_type_tag_key deprecated.

Known issues:

• Public subnets are not properly configured when private_subnets_enabled is false
• Some outputs have changed from tuple to list, causing plans to contain confusing output like:

Changes to Outputs:
  ~ private_subnet_cidrs = [
      - "172.16.0.0/19",
      - "172.16.32.0/19",
    ] -> [
      + "172.16.0.0/19",
      + "172.16.32.0/19",
    ]

See hashicorp/terraform#31102 for details.

Details:

Overhaul for IPv6 and flexiblity @Nuru (#159)

what

• Full support for IPv6

why

• Requested feature

references

• Closes #21
• Resolves #73
• Fixes #120
• Supersedes and closes #139
• Supersedes and closes #147
• Fixes #148
• Supersedes and closes #151
• Supersedes and closes #152
• Fixes #153
• Supersedes and closes #154

notes

• Migration notes are here

Changes from v1.0.0: 1.0.0...2.0.0

v2.0.0-rc5

This is candidate code for the v2.0.0 release. It has breaking changes, documented here. If you want to use try it out, please do, and add comments to PR #159 if you find problems.

The highlights:

• Full support for IPv6
• Addresses nearly all open issues and PRs
• More inputs made optional.
• Additional control over whether or not certain resources are created.
• Optional inputs converted to lists due to Terraform limitations.
• subnet_type_tag_key deprecated.

Changes from v2.0.0-rc4: 2.0.0-rc4...2.0.0-rc5

v2.0.0-rc4

This is candidate code for the v2.0.0 release. It has breaking changes, documented here. If you want to use try it out, please do, and add comments to PR #159 if you find problems.

The highlights:

• Full support for IPv6
• Addresses nearly all open issues and PRs
• More inputs made optional.
• Additional control over whether or not certain resources are created.
• Optional inputs converted to lists due to Terraform limitations.
• subnet_type_tag_key deprecated.

v2.0.0-rc2

This is candidate code for the v2.0.0 release. It has breaking changes, documented here. If you want to use try it out, please do, and add comments to PR #159 if you find problems.

The highlights:

• Full support for IPv6
• More inputs made optional.
• Additional control over whether or not certain resources are created.
• Optional inputs converted to lists due to Terraform limitations.
• subnet_type_tag_key deprecated.

v2.0.0-rc1

This is candidate code for the v2.0.0 release. It has breaking changes, and is missing the migration documentation on how to upgrade from v1.0. Nevertheless, if you want to use try it out, please do, and add comments to PR #159 if you find problems.

The highlights:

• Full support for IPv6
• More inputs made optional.
• Additional control over whether or not certain resources are created.
• Optional inputs converted to lists due to Terraform limitations.
• subnet_type_tag_key deprecated.

v1.0.0 Initial release with production Semantic Versioning

Initial release with production Semantic Versioning, part of Cloud Posse's general policy to convert to production versioning as we make updates to relatively mature modules, especially those where we see breaking changes coming in the near future.

• This release is functionally equivalent to v0.40.1
• We anticipate a v2.0.0 release in the very near future with breaking changes in the way we handle network ACLs
• We will also be enhancing IPv6 support

Update testing framework @Nuru (#157)

what

• Update testing framework
• Fix and enable incomplete "existing IPs" test
• Update git.io -> cloudposse.tools

why

• Bring up to current standard
• Better test coverage
• EOL for git.io

v0.40.1

🚀 Enhancements

Fixed deprecated warning, using network_interface_id instead @ktasper (#156)

what

Using the current version you get a deprecated warning:

│ Warning: Argument is deprecated
│ 
│   with module.dynamic-subnets.aws_route.nat_instance,
│   on .terraform/modules/dynamic-subnets/nat-instance.tf line 130, in resource "aws_route" "nat_instance":
│  130:   instance_id            = element(aws_instance.nat_instance.*.id, count.index)
│ 
│ Use network_interface_id instead

I have updated the code to use the recommended network_interface_id, as a result I have also had to point it to primary_network_interface_id.

v0.40.0

Adds ability to specify CPU credit type for NAT instances @bradj (#155)

what

• Module allows user to specify either standard, unilimited, or the default credit specification for NAT instances
• Updates to the credit specification will update the instance in place

why

• Provides more predictable bills
• No longer need to worry about how much bursting could cost

references

• https://aws.amazon.com/premiumsupport/knowledge-center/ec2-calculate-burst-credit-billing/
• https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/burstable-performance-instances-unlimited-mode.html

v0.39.8

🚀 Enhancements

Bump providers @nitrocode (#146)

what

• Bump providers

why

• so consumers don't see errors based on new features used by this module

references

• Closes #145

v0.39.7

🤖 Automatic Updates

chore(deps): update terraform cloudposse/utils/aws to v0.8.1 @renovate (#143)

This PR contains the following updates:

Package	Type	Update	Change
cloudposse/utils/aws (source)	module	patch	0.8.0 -> 0.8.1

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Release Notes

cloudposse/terraform-aws-utils

v0.8.1

Compare Source

🚀 Enhancements

Chore: run `make github/init` @​korenyoni (#​13)

#### what * Run `make github/init`. #### why * Updates `context.tf` to that of `0.25.0`, which adds supports for the `tenant` label. * Updates GHA-workflow-related files to their latest distribution. * This repository has been inactive for 60 days, so `auto-context` was disabled. #### references * https://github.com/cloudposse/terraform-null-label/releases/tag/0.25.0

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