Add support for Kafka Fleet output types.

CHANGELOG.md

@@ -13,6 +13,7 @@
 - Migrate `elasticstack_kibana_action_connector` to the Terraform plugin framework ([#1269](https://github.com/elastic/terraform-provider-elasticstack/pull/1269))
 - Migrate `elasticstack_elasticsearch_security_role_mapping` resource and data source to Terraform Plugin Framework ([#1279](https://github.com/elastic/terraform-provider-elasticstack/pull/1279))
 - Add support for `inactivity_timeout` in `elasticstack_fleet_agent_policy` ([#641](https://github.com/elastic/terraform-provider-elasticstack/issues/641))
+- Add support for `kafka` output types in `elasticstack_fleet_output` ([#1302](https://github.com/elastic/terraform-provider-elasticstack/pull/1302))
 - Add support for `prevent_initial_backfill` to `elasticstack_kibana_slo` ([#1071](https://github.com/elastic/terraform-provider-elasticstack/pull/1071))
 - [Refactor] Regenerate the SLO client using the current OpenAPI spec ([#1303](https://github.com/elastic/terraform-provider-elasticstack/pull/1303))
 - Add support for `data_view_id` in the `elasticstack_kibana_slo` resource ([#1305](https://github.com/elastic/terraform-provider-elasticstack/pull/1305))

docs/resources/fleet_output.md

@@ -1,4 +1,3 @@
-
 ---
 # generated by https://github.com/hashicorp/terraform-plugin-docs
 page_title: "elasticstack_fleet_output Resource - terraform-provider-elasticstack"
@@ -13,6 +12,8 @@ Creates a new Fleet Output.
 
 ## Example Usage
 
+### Basic output
+
 ```terraform
 provider "elasticstack" {
   kibana {}
@@ -32,6 +33,168 @@ resource "elasticstack_fleet_output" "test_output" {
 }
 ```
 
+### Basic Kafka output
+
+```terraform
+terraform {
+  required_providers {
+    elasticstack = {
+      source  = "elastic/elasticstack"
+      version = "~> 0.11"
+    }
+  }
+}
+
+provider "elasticstack" {
+  elasticsearch {}
+  kibana {}
+}
+
+# Basic Kafka Fleet Output
+resource "elasticstack_fleet_output" "kafka_basic" {
+  name                 = "Basic Kafka Output"
+  output_id            = "kafka-basic-output"
+  type                 = "kafka"
+  default_integrations = false
+  default_monitoring   = false
+
+  hosts = [
+    "kafka:9092"
+  ]
+
+  # Basic Kafka configuration
+  kafka = {
+    auth_type     = "user_pass"
+    username      = "kafka_user"
+    password      = "kafka_password"
+    topic         = "elastic-beats"
+    partition     = "hash"
+    compression   = "gzip"
+    required_acks = 1
+
+    headers = [
+      {
+        key   = "environment"
+        value = "production"
+      }
+    ]
+  }
+}
+```
+
+### Advanced Kafka output
+
+```terraform
+terraform {
+  required_providers {
+    elasticstack = {
+      source  = "elastic/elasticstack"
+      version = "~> 0.11"
+    }
+  }
+}
+
+provider "elasticstack" {
+  elasticsearch {}
+  kibana {}
+}
+
+# Advanced Kafka Fleet Output with SSL authentication
+resource "elasticstack_fleet_output" "kafka_advanced" {
+  name                 = "Advanced Kafka Output"
+  output_id            = "kafka-advanced-output"
+  type                 = "kafka"
+  default_integrations = false
+  default_monitoring   = false
+
+  hosts = [
+    "kafka1:9092",
+    "kafka2:9092",
+    "kafka3:9092"
+  ]
+
+  # Advanced Kafka configuration
+  kafka = {
+    auth_type      = "ssl"
+    topic          = "elastic-logs"
+    partition      = "round_robin"
+    compression    = "snappy"
+    required_acks  = -1
+    broker_timeout = 10
+    timeout        = 30
+    version        = "2.6.0"
+    client_id      = "elastic-beats-client"
+
+    # Custom headers for message metadata
+    headers = [
+      {
+        key   = "datacenter"
+        value = "us-west-1"
+      },
+      {
+        key   = "service"
+        value = "beats"
+      },
+      {
+        key   = "environment"
+        value = "production"
+      }
+    ]
+
+    # Hash-based partitioning
+    hash = {
+      hash   = "host.name"
+      random = false
+    }
+
+    # SASL configuration
+    sasl = {
+      mechanism = "SCRAM-SHA-256"
+    }
+  }
+
+  # SSL configuration (reusing common SSL block)
+  ssl = {
+    certificate_authorities = [
+      file("${path.module}/ca.crt")
+    ]
+    certificate = file("${path.module}/client.crt")
+    key         = file("${path.module}/client.key")
+  }
+
+  # Additional YAML configuration for advanced settings
+  config_yaml = yamlencode({
+    "ssl.verification_mode"   = "full"
+    "ssl.supported_protocols" = ["TLSv1.2", "TLSv1.3"]
+    "max.message.bytes"       = 1000000
+  })
+}
+
+# Example showing round-robin partitioning with event grouping
+resource "elasticstack_fleet_output" "kafka_round_robin" {
+  name                 = "Kafka Round Robin Output"
+  output_id            = "kafka-round-robin-output"
+  type                 = "kafka"
+  default_integrations = false
+  default_monitoring   = false
+
+  hosts = ["kafka:9092"]
+
+  kafka = {
+    auth_type   = "none"
+    topic       = "elastic-metrics"
+    partition   = "round_robin"
+    compression = "lz4"
+
+    round_robin = [
+      {
+        group_events = 100
+      }
+    ]
+  }
+}
+```
+
 <!-- schema generated by tfplugindocs -->
 ## Schema
 
@@ -48,14 +211,83 @@ resource "elasticstack_fleet_output" "test_output" {
 - `default_integrations` (Boolean) Make this output the default for agent integrations.
 - `default_monitoring` (Boolean) Make this output the default for agent monitoring.
 - `hosts` (List of String) A list of hosts.
+- `kafka` (Attributes) Kafka-specific configuration. (see [below for nested schema](#nestedatt--kafka))
 - `output_id` (String) Unique identifier of the output.
-- `ssl` (Block List) SSL configuration. (see [below for nested schema](#nestedblock--ssl))
+- `ssl` (Attributes) SSL configuration. (see [below for nested schema](#nestedatt--ssl))
 
 ### Read-Only
 
 - `id` (String) The ID of this resource.
 
-<a id="nestedblock--ssl"></a>
+<a id="nestedatt--kafka"></a>
+### Nested Schema for `kafka`
+
+Optional:
+
+- `auth_type` (String) Authentication type for Kafka output.
+- `broker_timeout` (Number) Kafka broker timeout.
+- `client_id` (String) Kafka client ID.
+- `compression` (String) Compression type for Kafka output.
+- `compression_level` (Number) Compression level for Kafka output.
+- `connection_type` (String) Connection type for Kafka output.
+- `hash` (Attributes) Hash configuration for Kafka partition. (see [below for nested schema](#nestedatt--kafka--hash))
+- `headers` (Attributes List) Headers for Kafka messages. (see [below for nested schema](#nestedatt--kafka--headers))
+- `key` (String) Key field for Kafka messages.
+- `partition` (String) Partition strategy for Kafka output.
+- `password` (String, Sensitive) Password for Kafka authentication.
+- `random` (Attributes) Random configuration for Kafka partition. (see [below for nested schema](#nestedatt--kafka--random))
+- `required_acks` (Number) Number of acknowledgments required for Kafka output.
+- `round_robin` (Attributes) Round robin configuration for Kafka partition. (see [below for nested schema](#nestedatt--kafka--round_robin))
+- `sasl` (Attributes) SASL configuration for Kafka authentication. (see [below for nested schema](#nestedatt--kafka--sasl))
+- `timeout` (Number) Timeout for Kafka output.
+- `topic` (String) Kafka topic.
+- `username` (String) Username for Kafka authentication.
+- `version` (String) Kafka version.
+
+<a id="nestedatt--kafka--hash"></a>
+### Nested Schema for `kafka.hash`
+
+Optional:
+
+- `hash` (String) Hash field.
+- `random` (Boolean) Use random hash.
+
+
+<a id="nestedatt--kafka--headers"></a>
+### Nested Schema for `kafka.headers`
+
+Required:
+
+- `key` (String) Header key.
+- `value` (String) Header value.
+
+
+<a id="nestedatt--kafka--random"></a>
+### Nested Schema for `kafka.random`
+
+Optional:
+
+- `group_events` (Number) Number of events to group.
+
+
+<a id="nestedatt--kafka--round_robin"></a>
+### Nested Schema for `kafka.round_robin`
+
+Optional:
+
+- `group_events` (Number) Number of events to group.
+
+
+<a id="nestedatt--kafka--sasl"></a>
+### Nested Schema for `kafka.sasl`
+
+Optional:
+
+- `mechanism` (String) SASL mechanism.
+
+
+
+<a id="nestedatt--ssl"></a>
 ### Nested Schema for `ssl`
 
 Required:

examples/resources/elasticstack_fleet_output/kafka_advanced.tf

@@ -0,0 +1,108 @@
+terraform {
+  required_providers {
+    elasticstack = {
+      source  = "elastic/elasticstack"
+      version = "~> 0.11"
+    }
+  }
+}
+
+provider "elasticstack" {
+  elasticsearch {}
+  kibana {}
+}
+
+# Advanced Kafka Fleet Output with SSL authentication
+resource "elasticstack_fleet_output" "kafka_advanced" {
+  name                 = "Advanced Kafka Output"
+  output_id            = "kafka-advanced-output"
+  type                 = "kafka"
+  default_integrations = false
+  default_monitoring   = false
+
+  hosts = [
+    "kafka1:9092",
+    "kafka2:9092",
+    "kafka3:9092"
+  ]
+
+  # Advanced Kafka configuration
+  kafka = {
+    auth_type      = "ssl"
+    topic          = "elastic-logs"
+    partition      = "round_robin"
+    compression    = "snappy"
+    required_acks  = -1
+    broker_timeout = 10
+    timeout        = 30
+    version        = "2.6.0"
+    client_id      = "elastic-beats-client"
+
+    # Custom headers for message metadata
+    headers = [
+      {
+        key   = "datacenter"
+        value = "us-west-1"
+      },
+      {
+        key   = "service"
+        value = "beats"
+      },
+      {
+        key   = "environment"
+        value = "production"
+      }
+    ]
+
+    # Hash-based partitioning
+    hash = {
+      hash   = "host.name"
+      random = false
+    }
+
+    # SASL configuration
+    sasl = {
+      mechanism = "SCRAM-SHA-256"
+    }
+  }
+
+  # SSL configuration (reusing common SSL block)
+  ssl = {
+    certificate_authorities = [
+      file("${path.module}/ca.crt")
+    ]
+    certificate = file("${path.module}/client.crt")
+    key         = file("${path.module}/client.key")
+  }
+
+  # Additional YAML configuration for advanced settings
+  config_yaml = yamlencode({
+    "ssl.verification_mode"   = "full"
+    "ssl.supported_protocols" = ["TLSv1.2", "TLSv1.3"]
+    "max.message.bytes"       = 1000000
+  })
+}
+
+# Example showing round-robin partitioning with event grouping
+resource "elasticstack_fleet_output" "kafka_round_robin" {
+  name                 = "Kafka Round Robin Output"
+  output_id            = "kafka-round-robin-output"
+  type                 = "kafka"
+  default_integrations = false
+  default_monitoring   = false
+
+  hosts = ["kafka:9092"]
+
+  kafka = {
+    auth_type   = "none"
+    topic       = "elastic-metrics"
+    partition   = "round_robin"
+    compression = "lz4"
+
+    round_robin = [
+      {
+        group_events = 100
+      }
+    ]
+  }
+}