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CHANGELOG.md

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Unreleased

BACKWARDS INCOMPATIBILITIES / NOTES:

  • The cluster_desired_capacity is now ignored after the first apply of the module since, in the case of autoscaling or manual scaling, the value may have changed between applys.

IMPROVEMENTS:

  • A cluster_instance_metadata_options variable has been added which mirrors the metadata_options exposed on the aws_launch_template resource. Among other things, this allows users of this module to require that IMDSv2 be used by containers in the cluster. By default, IMDSv2 is not required in this version of the module but a future major release of the module may enforce IMDSv2 usage.
  • The EBS volumes attached to container instances are now tagged with Component, DeploymentIdentifier, Name and ClusterName tags by default, as well as with any tags passed in the tags var when provided (resolves #94).

6.0.0 (February 22th 2023)

BACKWARDS INCOMPATIBILITIES / NOTES:

  • This module is now compatible with Terraform 1.1 and higher.
  • This module now uses EBS volume encryption by default. This can be disabled using cluster_instance_enable_ebs_volume_encryption = false.
  • In line with Amazon's update of the default root block storage device, the default in this module is now /dev/xvda.
  • All variables previously using "yes|no" have been replaced with true|false.
  • The allowed_cidrs variable has been renamed to default_ingress_cidrs.
  • The egress_cidrs variable has been renamed to default_egress_cidrs.
  • The cluster_instance_amis variable has been replaced with the singular cluster_instance_ami, with default value of null.
  • The following variables have had their default value replaced from "" to null:
    • cluster_instance_user_data_template
    • cluster_instance_iam_policy_contents
    • cluster_service_iam_policy_contents

IMPROVEMENTS:

  • This module now uses the nullable feature to simplify variable defaults.

5.0.1 (February 2nd 2023)

IMPROVEMENTS:

  • added option to specify log retention period for cluster
  • added option to disable enhanced instance monitoring (enabled by default)
  • added option to specify the path of the root block storage device as AWS default has changed from /dev/sda1 to /dev/xvda

5.0.0 (December 22nd 2022)

BACKWARDS INCOMPATIBILITIES / NOTES:

  • This module is now compatible with Terraform 1.0 and higher.
  • In line with Amazon's deprecation and pending removal of support for launch configurations, this module now creates a launch template for the autoscaling group. As a result, the launch_configuration_name output has been replaced by the launch_template_name and launch_template_id outputs. Upon upgrading this module, the launch configuration will be destroyed and an equivalent launch template will be created and associated with the autoscaling group.
  • The unused launch_configuration_create_before_destroy variable has been removed.

4.2.0 (June 20th 2022)

IMPROVEMENTS:

  • The aws and null provider constraints have been loosened to allow this module to be used with the latest versions of each. This enables use of Terraform AWS provider v4.
  • The no longer supported template provider has been replaced with native terraform configuration language equivalents.

4.1.0 (March 19th 2022)

IMPROVEMENTS:

  • The aws_ecs_cluster_capacity_providers resource is now used to associate capacity providers with the created ECS cluster.

4.0.0 (May 27th, 2021)

BACKWARDS INCOMPATIBILITIES / NOTES:

  • This module is now compatible with Terraform 0.14 and higher.

0.2.6 (December 31st, 2017)

IMPROVEMENTS:

  • The associate_public_ip_addresses variable allows public IPs to be associated to ECS container instances. By default its value is no.

0.2.5 (December 31st, 2017)

IMPROVEMENTS:

  • Updated README with correct inputs, outputs and usage.

0.2.4 (December 30th, 2017)

BACKWARDS INCOMPATIBILITIES / NOTES:

  • The cluster now uses the latest ECS optimised amazon linux image by default. This can be overridden using the cluster_instance_amis variable.
  • The private_subnet_ids variable has been renamed to subnet_ids as there is nothing requiring the subnets to be private
  • The private_network_cidr variable has been renamed to allowed_cidrs and its type has changed to list.

IMPROVEMENTS:

  • The cluster now uses the latest ECS optimised amazon linux image by default.
  • The default security group ingress and egress rules are now optional and configurable. A list of CIDRs for both ingress and egress can be specified using allowed_cidrs and egress_cidrs respectively. The default rules can be disabled using include_default_ingress_rule and include_default_egress_rule.
  • The security group ID is now available via an output named security_group_id so that additional rules can be added outside of the module.

0.2.3 (December 29th, 2017)

BACKWARDS INCOMPATIBILITIES / NOTES:

  • The configuration directory has changed from <repo>/src to <repo> to satisfy the Terraform standard module structure.

IMPROVEMENTS:

  • All variables and outputs now have descriptions to satisfy the Terraform standard module structure.

0.2.0 (November 3th, 2017)

BACKWARDS INCOMPATIBILITIES / NOTES:

  • The IAM roles and policies for instance and service now use randomly generated names. The value that was previously used for name can now be found in the description.