cloudwatch_events.tf

resource "aws_cloudwatch_event_rule" "codepipeline" {
  name = "CodePipelineExecutionStateChane"
  description = "CodePipeline Pipeline Execution State Change"
  event_pattern = << PATTERN
{
  "source": [
    "aws.codepipeline"
  ],
  "detail-type": [
    "CodePipeline Pipeline Execution State Change"
  ]
}
PATTERN
}
resource "aws_cloudwatch_event_target" "codepipeline_to_sns" {
  rule = "$ {aws_cloudwatch_event_rule.codepipeline.name}"
  arn = "$ {aws_sns_topic.codepipeline.arn}"
  input_transformer {
    input_paths = {
      PipelineName = "$ .detail.pipeline"
      State = "$ .detail.state"
    }
    input_template = "\" Pipeline [<PipelineName>] execution state changed [<State>] \ ""
  }
}