terraform-logs-module/main.tf at master · datastreamapp/terraform-logs-module · GitHub

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resource "aws_s3_bucket" "default" {
  bucket = "${var.name}-logs"

  // TODO not support yet - https://github.com/terraform-providers/terraform-provider-aws/issues/9459
  /*object_level_logging {
    target_trail = var.target_trail
    events       = "Read/Write"
  }*/

  force_destroy = false

  /*tags = merge(
  var.tags,
  {
    Security = "SSE:AWS"
  }
  )*/
}

resource "aws_s3_bucket_lifecycle_configuration" "default" {
  bucket = aws_s3_bucket.default.id
  rule {
    id      = "log"
    status = "Enabled"

    filter {
      and {
        tags = {
          rule      = "log"
          autoclean = "true"
        }
      }
    }


    dynamic "transition" {
      for_each =  var.transition_infrequent_days < var.expiration_days ? [1] : []
      content {
        days          = var.transition_infrequent_days
        storage_class = "STANDARD_IA"
      }
    }

    dynamic "transition"  {
      for_each =  var.transition_glacier_days < var.expiration_days ? [1] : []
      content {
        days          = var.transition_glacier_days
        storage_class = "GLACIER"
      }
    }

    expiration {
      days = var.expiration_days
    }
  }

  dynamic "rule" {
    for_each = var.lifecycle_rules
    content {
      id     = rule.value.id
      status = "Enabled"

      filter {
        prefix = rule.value.prefix
      }

      expiration {
        days = rule.value.expiration_days
      }
    }
  }

  rule {
    id     = "noncurrent-versions"
    status = "Enabled"

    filter {}

    noncurrent_version_expiration {
      noncurrent_days = 1
    }
  }

  rule {
    id     = "delete-markers"
    status = "Enabled"

    filter {}

    expiration {
      expired_object_delete_marker = true
    }
  }
}

resource "aws_s3_bucket_versioning" "default" {
  bucket = aws_s3_bucket.default.id
  versioning_configuration {
    status = "Enabled"
  }
}

resource "aws_s3_bucket_logging" "default" {
  count = var.logging_bucket != "" ? 1 : 0
  bucket = aws_s3_bucket.default.id
  target_bucket =  var.logging_bucket
  target_prefix = "AWSLogs/${local.account_id}/S3/${var.name}-logs/"
}

resource "aws_s3_bucket_server_side_encryption_configuration" "default" {
  bucket = aws_s3_bucket.default.id
  rule {
    apply_server_side_encryption_by_default {
      sse_algorithm = var.sse_algorithm
      kms_master_key_id = var.kms_key_arn
    }
  }
}

resource "aws_s3_bucket_object_lock_configuration" "default" {
  depends_on          = [aws_s3_bucket_versioning.default]
  bucket              = aws_s3_bucket.default.id
  object_lock_enabled = "Enabled"

  rule {
    default_retention {
      mode = "COMPLIANCE"
      days = var.expiration_days
    }
  }
}

resource "aws_s3_bucket_public_access_block" "default" {
  depends_on = [
    aws_s3_bucket.default]
  bucket     = aws_s3_bucket.default.id

  block_public_acls       = true
  block_public_policy     = true
  ignore_public_acls      = true
  restrict_public_buckets = true
}

# https://docs.aws.amazon.com/macie/latest/userguide/macie-setting-up.html#macie-setting-up-enable
# https://www.terraform.io/docs/providers/aws/r/macie_s3_bucket_association.html
# move to AWS s3 example
//resource "aws_macie_s3_bucket_association" "example" {
//  bucket_name = "tf-macie-example"
//  prefix      = "data"
//
//  classification_type {
//    one_time = "FULL"
//  }
//}