Kafka Topic

Creates and manages IonosCloud Kafka Cluster Topic objects.

Manages a Kafka Cluster Topic on IonosCloud.

Example Usage

This resource will create an operational Kafka Cluster Topic. After this section completes, the provisioner can be called.

# Basic example

resource "ionoscloud_datacenter" "example" {
  name     = "example-kafka-datacenter"
  location = "de/fra"
}

resource "ionoscloud_lan" "example" {
  datacenter_id = ionoscloud_datacenter.example.id
  public        = false
  name          = "example-kafka-lan"
}

resource "ionoscloud_kafka_cluster" "example" {
  name     = "example-kafka-cluster"
  location = ionoscloud_datacenter.example.location
  version  = "3.7.0"
  size     = "S"
  connections {
    datacenter_id = ionoscloud_datacenter.example.id
    lan_id = ionoscloud_lan.example.id
    broker_addresses = [
      "192.168.1.101/24",
      "192.168.1.102/24",
      "192.168.1.103/24"
    ]
  }
}

resource "ionoscloud_kafka_cluster_topic" "example" {
  cluster_id           = ionoscloud_kafka_cluster.example.id
  name                 = "kafka-cluster-topic"
  location             = ionoscloud_kafka_cluster.example.location
  replication_factor   = 1
  number_of_partitions = 1
  retention_time       = 86400000
  segment_bytes        = 1073741824
}

# Complete example

resource "ionoscloud_datacenter" "example" {
  name     = "example-kafka-datacenter"
  location = "de/fra"
}

resource "ionoscloud_lan" "example" {
  datacenter_id = ionoscloud_datacenter.example.id
  public        = false
  name          = "example-kafka-lan"
}

resource "ionoscloud_server" "example" {
  name              = "example-kafka-server"
  datacenter_id     = ionoscloud_datacenter.example.id
  cores             = 1
  ram               = 2 * 1024
  availability_zone = "AUTO"
  cpu_family        = "INTEL_SKYLAKE"
  image_name = "ubuntu:latest" # alias name
  image_password    = random_password.password.result
  volume {
    name      = "example-kafka-volume"
    size      = 6
    disk_type = "SSD Standard"
  }
  nic {
    lan  = ionoscloud_lan.example.id
    name = "example-kafka-nic"
    dhcp = true
  }
}

resource "random_password" "password" {
  length  = 16
  special = false
}

locals {
  prefix = format("%s/%s", ionoscloud_server.example.nic[0].ips[0], "24")
  server_net_index              = split(".", ionoscloud_server.example.nic[0].ips[0])[3]
  kafka_cluster_broker_ips      = [
    for i in range(local.server_net_index + 1, local.server_net_index + 4) :cidrhost(local.prefix, i)
  ]
  kafka_cluster_broker_ips_cidr = [for ip in local.kafka_cluster_broker_ips : format("%s/%s", ip, "24")]
}

resource "ionoscloud_kafka_cluster" "example" {
  name     = "example-kafka-cluster"
  location = ionoscloud_datacenter.example.location
  version  = "3.7.0"
  size     = "S"
  connections {
    datacenter_id    = ionoscloud_datacenter.example.id
    lan_id           = ionoscloud_lan.example.id
    broker_addresses = local.kafka_cluster_broker_ips_cidr
  }
}

resource "ionoscloud_kafka_cluster_topic" "example" {
  cluster_id           = ionoscloud_kafka_cluster.example.id
  name                 = "kafka-cluster-topic"
  location             = ionoscloud_kafka_cluster.example.location
  replication_factor   = 1
  number_of_partitions = 1
  retention_time       = 86400000
  segment_bytes        = 1073741824
}

Argument reference

• id - (Computed)[string] The UUID of the Kafka Cluster Topic.

• name - (Required)[string] Name of the Kafka Cluster.

• location - (Optional)[string] The location of the Kafka Cluster Topic. Possible values: de/fra, de/txl

• cluster_id - (Required)[string] ID of the Kafka Cluster that the topic belongs to.

• replication_factor - (Optional)[int] The number of replicas of the topic. The replication factor determines how many copies of the topic are stored on different brokers. The replication factor must be less than or equal to the number of brokers in the Kafka Cluster. Minimum value: 1. Default value: 3.

• number_of_partitions - (Optional)[int] The number of partitions of the topic. Partitions allow for parallel processing of messages. The partition count must be greater than or equal to the replication factor. Minimum value: 1. Default value: 3.

• retention_time - (Optional)[int] This configuration controls the maximum time we will retain a log before we will discard old log segments to free up space. This represents an SLA on how soon consumers must read their data. If set to -1, no time limit is applied. Default value: 604800000.

• segment_bytes - (Optional)[int] This configuration controls the segment file size for the log. Retention and cleaning is always done a file at a time so a larger segment size means fewer files but less granular control over retention. Default value: 1073741824.

Import

Kafka Cluster Topic can be imported using the location, kafka cluster id and the kafka cluster topic id:

terraform import ionoscloud_kafka_cluster_topic.my_topic {location}:{kafka cluster uuid}:{kafka cluster topic uuid}