Missing attribute "confluent_topic_type" of Kafka topic config in Terraform provider

[RishuSinghS]

Hello,

I have noticed that a new attribute, confluent_topic_type, is automatically added to Kafka Topic configurations when created manually through the Confluent portal.

However, I cannot find this attribute currently documented or supported in the Terraform provider for Kafka topics: Terraform Kafka Topic Resource.

Our workflow fails when attempting to import a manually created topic through Terraform, as it tries to remove the confluent.topic.type attribute:

### 0 to add, 1 to change, 0 to destroy, 0 to replace.
- change
    - module.kafka_topic.confluent_kafka_topic.kafka_topic
<details><summary>Change details</summary>

# module.kafka_topic.confluent_kafka_topic.kafka_topic will be updated in-place
@@ -3,7 +3,6 @@
     "cleanup.policy": "delete",
     "confluent.key.schema.validation": "false",
     "confluent.key.subject.name.strategy": "io.confluent.kafka.serializers.subject.TopicNameStrategy",
-    "confluent.topic.type": "standard",
     "confluent.value.schema.validation": "true",
     "confluent.value.subject.name.strategy": "io.confluent.kafka.serializers.subject.TopicNameStrategy",
     "delete.retention.ms": "86400000",

Could you please assist with a fix for this issue?

[channingdong]

Hi Customer,

Which TF provider version were you using to replicate this issue?

And to replicate the issue, is the step-by-step workflow as below?

• Create a Kafka topic in UI
• Make sure confluent.topic.type is present.
• Import this Kafka topic through TF import command
• Run terraform plan
• Noticed the TF drift described above

[channingdong]

Also, could you please share how do you import the manually created Kafka topic through TF? You don't need to share the whole code block, the essential code snippet is okay.

[dedovicnermin]

Important to create the topic through the UI (DYNAMIC_TOPIC_CONFIG)

TF import block Instead of running terraform import command, include an import block and run terraform plan

import {
  to = confluent_kafka_topic.example
  id = "lkc-xyz/orders"
}

resource "confluent_kafka_topic" "example" {
  kafka_cluster {
    id = lkc-xyz
  }
  topic_name         = "orders"
  partitions_count   = 4
  rest_endpoint      = confluent_kafka_cluster.basic-cluster.rest_endpoint
  config = {
    "cleanup.policy"                      = "delete"
    "delete.retention.ms"                 = "86400000"
    "max.compaction.lag.ms"               = "9223372036854775807"
    "max.message.bytes"                   = "2097164"
    "message.timestamp.after.max.ms"      = "9223372036854775807"
    "message.timestamp.before.max.ms"     = "9223372036854775807"      
    "message.timestamp.difference.max.ms" = "9223372036854775807"
    "message.timestamp.type"              = "CreateTime"
    "min.compaction.lag.ms"               = "0"
    "min.insync.replicas"                 = "2"
    "retention.bytes"                     = "-1"
    "retention.ms"                        = "604800000"
    "segment.bytes"                       = "104857600"
    "segment.ms"                          = "604800000"
  }
  credentials {
    key    = confluent_api_key.app-manager-kafka-api-key.id
    secret = confluent_api_key.app-manager-kafka-api-key.secret
  }
}

[davekpatrick]

any update on the resolution of this issue ? Pull request https://github.com/confluentinc/terraform-provider-confluent/pull/437 has been opened to update the editableTopicSettings code