Meta-Morphosis

• Feature: EC2 instances can be supplied metadata options through var.bastion_metadata_options
• Change: Increment required terraform version to >= 1.3.0
• Thanks: bird-bust-battery

Externalities

• Feature: Make default permissive outbound security group rule creation conditional: var.custom_outbound_security_group type = bool. Historic behaviour is followed by default
• Feature: Make bastion service port configurable: var.bastion_service_port type = number. Historic behaviour is followed by default
• Feature: Add new examples/custom_outbound_security_group demonstrating use of above
• Change: Increment required terraform version to >= 1.2.0 since we are not testing historic versions
• Change: Increment suggested AWS provider to 4.22 (not hard enforce)
• Change: Remove obsolete explicit manual dependencies from examples
• Change: Remove obsolete quotes from interpolations in locals
• Change: Tidy up Readme to include new options sensibly

Lemniscate

• Change: Defaults to Debian 11 (host) and Ubuntu 22.04 (Container). Alternative combinations, distributions and non-AMD64 platforms not tested at this time. Tested using
  • Terraform v1.1.9
  • hashicorp/aws v4.12.1
  • hashicorp/cloudinit v2.2.0
• Change: Moved to go mod to build golang binary (uses go1.15.15 linux/amd64 on Debian host)
• Change: Default ebs device name changed: "xvda" => "/dev/sda1"
• Change: /examples/full-with-public-ip instance type changed: t2.micro => t3.micro. t2.micro no longer completes healtchchecks successfully
• Change: default instance types changed: ["t2.small", "t2.medium", "t2.large"] => ["t3.small", "t3.medium", "t3.large"]. t2 instance types no longer complete healtchchecks successfully
• Change: var.subnets_asg and var.subnets_lb are now Required inputs. Sadly this apparently should have been the case since release 6.0 when automatic subnet selection was removed

That's My Lucky Number

Breaking changes with existing deployments using earlier module versions

• Change: Retire deprecated null-resource provider
• Change: Retire deprecated template provider (required for darwin_arm64). Fixes Issue #51
• Feature: Support provider default tags as well as explicit tags for all supported resources plus autoscaling group
• Change: Update Terraform version to >/=0.15.x/1.0.0
• Change/Feature: Change from Launch Configuration to Launch Template. Includes support for spot instances. Fixes Issue #46
• Feature: Enable setting cloudwatch metrics for autoscaling group
• Feature: Add unique target group name for bastion host elb
• Feature: Enable setting EBS size and name for bastion instance
• Bugfix: Update formatting in readme
• Bugfix: Spellcheck readme and changelog
• Change: Update terraform-docs outputs on documentation
• Change: Update internal filenames and references to comply with upstream template file naming conventions; move locals to locals.tf

Are you feeling lucky

Update readme to specify that we are targeting terraform 13

Lucky for some

Major version increment as changes accommodate major version increments for both AWS provider and Terraform itself

Updates for:

• Terraform 0.13 using terraform 0.13upgrade linting and provider specification
• Terraform AWS provider 3.0.0 - vpc_zone_identifier argument now conflicts with vpc_zone_identifier in Resource: aws_autoscaling_group
• Single deployment of included example, accommodating above changes
• var.aws_profile is now defaulted to "" as it is only used for sample policies output

Intergalactic

Bugfix: Change all apt => apt-get; Prefix apt-get install with DEBIAN_FRONTEND=noninteractive so that prompts are automatically accepted during cloud-init run (Thanks @DavidBennettUK)

Change: Default ubuntu container version updated 16.04 => 20.04

Feature: Update README.md

Twelfth Night

Change: Updated to Terraform 0.12/HCL2. This is a Breaking change

For Terraform 0.11. Pin module version to ~> v4.0

Change: The Tags 'Name', 'Environment' and 'Region' are no longer automatically created, populated and applied to the autoscaling group. This change is due to a combination of:

• Difficult to port old behaviour to Terraform 12
• It wasn't a great idea to pre-determine tags for users
• Since this release is a breaking change anyway, it's a good opportunity to change this.

The tags given in var.tags are rendered to the Autoscaling group as before

On Target

Feature: Added variable ${route53_fqdn} (default ""to preserve module historic behaviour by default). If creating a public DNS entry with this module then you may override the default constructed DNS entry by supplying a fully qualified domain name here.

Feature: Added output target group arn. - Thanks Kevin Green

Closer than close

4.8

Change: Added variable ${var.service_name} (default "bastion-service" to preserve module historic behaviour by default). Set this to a different value to avoid resource name collision when deploying more than one service using this module per vpc.

Change: Removed module version number and empty outputs from examples/full-with-public-ip