Support CloudWatch Evidently

[michimani]

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Description

Define and manage the resources associated with CloudWatch Evidently.
I want to be able to change the ratio of each variation, the start time of the launch, etc. flexibly, so I want to be able to ignore changes made in the management console, etc. using igunore_changes.

New or Affected Resource(s)

• aws_evidently_project
• aws_evidently_feature
• aws_evidently_launch
• aws_evidently_experimental

Potential Terraform Configuration

resource "aws_evidently_project" "evidently_project" {
  name        = "project-name"
  description = "project description"
}

resource "aws_evidently_feature" "evidently_feature" {
  name              = "feature-name"
  description       = "feature description"
  project           = evidently_project.arn
  default_variation = "variation-default"

  variations {
    variation {
      variation_name = "variation-default"
      string_value   = "white"
    }

    variation {
      variation_name = "variation-red"
      string_value   = "red"
    }

    variation {
      variation_name = "variation-green"
      string_value   = "green"
    }

    variation {
      variation_name = "variation-blue"
      string_value   = "blue"
    }

    variation {
      variation_name = "variation-rainbow"
      string_value   = "rainbow"
    }
  }

  entity_overrides {
    entity_override {
      entity_id = "rainbow"
      variation = "variation-rainbow"
    }
  }

  evaluation_strategy = "ALL_RULES"
}

resource "aws_evidently_launch" "evidently_launch" {
  name        = "launch-name"
  description = "launch description"
  project     = evidently_project.arn

  groups {
    launch_group {
      group_name  = "red-group-name"
      description = "red group description"
      feature     = evidently_feature.arn
      variation   = "variation-red"
    }

    launch_group {
      group_name  = "green-group-name"
      description = "green group description"
      feature     = evidently_feature.arn
      variation   = "variation-green"
    }

    launch_group {
      group_name  = "blue-group-name"
      description = "blue group description"
      feature     = evidently_feature.arn
      variation   = "variation-blue"
    }

    launch_group {
      group_name  = "rainbow-group-name"
      description = "rainbow group description"
      feature     = evidently_feature.arn
      variation   = "variation-rainbow"
    }
  }

  scheduled_splits_config {
    step_config {
      start_time = "2025-11-25T23:59:59Z"

      group_weights {
        group_to_weight {
          group_name   = "red-group-name"
          split_weight = 30000
        }

        group_to_weight {
          group_name   = "green-group-name"
          split_weight = 30000
        }

        group_to_weight {
          group_name   = "blue-group-name"
          split_weight = 30000
        }

        group_to_weight {
          group_name   = "rainbow-group-name"
          split_weight = 10000
        }
      }
    }
  }

  lifecycle {
    ignore_changes = [
      scheduled_splits_config
    ]
  }
}

References

• https://aws.amazon.com/jp/blogs/aws/cloudwatch-evidently/
• https://docs.aws.amazon.com/en_us/AWSCloudFormation/latest/UserGuide/AWS_Evidently.html
• https://docs.aws.amazon.com/sdk-for-go/api/service/cloudwatchevidently/

[github-actions]

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[github-actions]

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