Confluent Consume: Fixed consumer group ID - Plugin

Fixed consumer group IDv3.15+

Use a fixed, operator-chosen consumer group ID to work with ACL-enforced Kafka clusters. Confluent Cloud enforces ACLs on consumer groups by default, so the default random group ID can’t be pre-allowlisted.

Because the group ID is stable, the plugin commits offsets under the same identity every time, so consumption picks up where it left off.

Prerequisites

You have a Kafka cluster in Confluent Cloud
You have a Kafka topic in the cluster
The consumer group name is allowlisted in your Confluent Cloud ACLs

Environment variables

BOOTSTRAP_SERVER_HOST: The bootstrap server host
API_KEY: The API key to use for authentication
API_SECRET: The API secret to use for authentication
KAFKA_TOPIC: The name of the Kafka topic to consume from
CONSUMER_GROUP_ID: The fixed consumer group ID, pre-allowlisted in your Confluent Cloud ACLs

Set up the plugin

Add this section to your kong.yaml configuration file:

kong.yaml

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_format_version: "3.0"
plugins:
  - name: confluent-consume
    config:
      bootstrap_servers:
      - host: ${{ env "DECK_BOOTSTRAP_SERVER_HOST" }}
        port: 9092
      topics:
      - name: ${{ env "DECK_KAFKA_TOPIC" }}
      mode: http-get
      cluster_api_key: ${{ env "DECK_API_KEY" }}
      cluster_api_secret: ${{ env "DECK_API_SECRET" }}
      consumer_group:
        mode: manual
        consumer_group_id: ${{ env "DECK_CONSUMER_GROUP_ID" }}

Make the following request:

curl -i -X POST http://localhost:8001/plugins/ \
    --header "Accept: application/json" \
    --header "Content-Type: application/json" \
    --data '
    {
      "name": "confluent-consume",
      "config": {
        "bootstrap_servers": [
          {
            "host": "'$BOOTSTRAP_SERVER_HOST'",
            "port": 9092
          }
        ],
        "topics": [
          {
            "name": "'$KAFKA_TOPIC'"
          }
        ],
        "mode": "http-get",
        "cluster_api_key": "'$API_KEY'",
        "cluster_api_secret": "'$API_SECRET'",
        "consumer_group": {
          "mode": "manual",
          "consumer_group_id": "'$CONSUMER_GROUP_ID'"
        }
      },
      "tags": []
    }
    '

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Make the following request:

curl -X POST https://{region}.api.konghq.com/v2/control-planes/{controlPlaneId}/core-entities/plugins/ \
    --header "accept: application/json" \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer $KONNECT_TOKEN" \
    --data '
    {
      "name": "confluent-consume",
      "config": {
        "bootstrap_servers": [
          {
            "host": "'$BOOTSTRAP_SERVER_HOST'",
            "port": 9092
          }
        ],
        "topics": [
          {
            "name": "'$KAFKA_TOPIC'"
          }
        ],
        "mode": "http-get",
        "cluster_api_key": "'$API_KEY'",
        "cluster_api_secret": "'$API_SECRET'",
        "consumer_group": {
          "mode": "manual",
          "consumer_group_id": "'$CONSUMER_GROUP_ID'"
        }
      },
      "tags": []
    }
    '

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Make sure to replace the following placeholders with your own values:

region: Geographic region where your Kong Konnect is hosted and operates.
KONNECT_TOKEN: Your Personal Access Token (PAT) associated with your Konnect account.
controlPlaneId: The id of the control plane.

See the Konnect API reference to learn about region-specific URLs and personal access tokens.

echo "
apiVersion: configuration.konghq.com/v1
kind: KongClusterPlugin
metadata:
  name: confluent-consume
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
    konghq.com/tags: ''
  labels:
    global: 'true'
config:
  bootstrap_servers:
  - host: '$BOOTSTRAP_SERVER_HOST'
    port: 9092
  topics:
  - name: '$KAFKA_TOPIC'
  mode: http-get
  cluster_api_key: '$API_KEY'
  cluster_api_secret: '$API_SECRET'
  consumer_group:
    mode: manual
    consumer_group_id: '$CONSUMER_GROUP_ID'
plugin: confluent-consume
" | kubectl apply -f -

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Prerequisite: Configure your Personal Access Token

terraform {
  required_providers {
    konnect = {
      source  = "kong/konnect"
    }
  }
}

provider "konnect" {
  personal_access_token = "$KONNECT_TOKEN"
  server_url            = "https://us.api.konghq.com/"
}

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Add the following to your Terraform configuration to create a Konnect Gateway Plugin:

resource "konnect_gateway_plugin_confluent_consume" "my_confluent_consume" {
  enabled = true

  config = {
    bootstrap_servers = [
      {
        host = var.bootstrap_server_host
        port = 9092
      }    ]
    topics = [
      {
        name = var.kafka_topic
      }    ]
    mode = "http-get"
    cluster_api_key = var.api_key
    cluster_api_secret = var.api_secret

    consumer_group = {
      mode = "manual"
      consumer_group_id = var.consumer_group_id
    }
  }
  tags = []

  control_plane_id = konnect_gateway_control_plane.my_konnect_cp.id
}

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This example requires the following variables to be added to your manifest. You can specify values at runtime by setting TF_VAR_name=value.

variable "consumer_group_id" {
  type = string
}

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Add this section to your kong.yaml configuration file:

kong.yaml

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_format_version: "3.0"
plugins:
  - name: confluent-consume
    service: serviceName|Id
    config:
      bootstrap_servers:
      - host: ${{ env "DECK_BOOTSTRAP_SERVER_HOST" }}
        port: 9092
      topics:
      - name: ${{ env "DECK_KAFKA_TOPIC" }}
      mode: http-get
      cluster_api_key: ${{ env "DECK_API_KEY" }}
      cluster_api_secret: ${{ env "DECK_API_SECRET" }}
      consumer_group:
        mode: manual
        consumer_group_id: ${{ env "DECK_CONSUMER_GROUP_ID" }}

Make sure to replace the following placeholders with your own values:

serviceName|Id: The id or name of the service the plugin configuration will target.

Make the following request:

curl -i -X POST http://localhost:8001/services/{serviceName|Id}/plugins/ \
    --header "Accept: application/json" \
    --header "Content-Type: application/json" \
    --data '
    {
      "name": "confluent-consume",
      "config": {
        "bootstrap_servers": [
          {
            "host": "'$BOOTSTRAP_SERVER_HOST'",
            "port": 9092
          }
        ],
        "topics": [
          {
            "name": "'$KAFKA_TOPIC'"
          }
        ],
        "mode": "http-get",
        "cluster_api_key": "'$API_KEY'",
        "cluster_api_secret": "'$API_SECRET'",
        "consumer_group": {
          "mode": "manual",
          "consumer_group_id": "'$CONSUMER_GROUP_ID'"
        }
      },
      "tags": []
    }
    '

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Make sure to replace the following placeholders with your own values:

serviceName|Id: The id or name of the service the plugin configuration will target.

Make the following request:

curl -X POST https://{region}.api.konghq.com/v2/control-planes/{controlPlaneId}/core-entities/services/{serviceId}/plugins/ \
    --header "accept: application/json" \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer $KONNECT_TOKEN" \
    --data '
    {
      "name": "confluent-consume",
      "config": {
        "bootstrap_servers": [
          {
            "host": "'$BOOTSTRAP_SERVER_HOST'",
            "port": 9092
          }
        ],
        "topics": [
          {
            "name": "'$KAFKA_TOPIC'"
          }
        ],
        "mode": "http-get",
        "cluster_api_key": "'$API_KEY'",
        "cluster_api_secret": "'$API_SECRET'",
        "consumer_group": {
          "mode": "manual",
          "consumer_group_id": "'$CONSUMER_GROUP_ID'"
        }
      },
      "tags": []
    }
    '

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Make sure to replace the following placeholders with your own values:

region: Geographic region where your Kong Konnect is hosted and operates.
KONNECT_TOKEN: Your Personal Access Token (PAT) associated with your Konnect account.
controlPlaneId: The id of the control plane.
serviceId: The id of the service the plugin configuration will target.

See the Konnect API reference to learn about region-specific URLs and personal access tokens.

echo "
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
  name: confluent-consume
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
    konghq.com/tags: ''
config:
  bootstrap_servers:
  - host: '$BOOTSTRAP_SERVER_HOST'
    port: 9092
  topics:
  - name: '$KAFKA_TOPIC'
  mode: http-get
  cluster_api_key: '$API_KEY'
  cluster_api_secret: '$API_SECRET'
  consumer_group:
    mode: manual
    consumer_group_id: '$CONSUMER_GROUP_ID'
plugin: confluent-consume
" | kubectl apply -f -

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Next, apply the KongPlugin resource by annotating the service resource:

kubectl annotate -n kong service SERVICE_NAME konghq.com/plugins=confluent-consume

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Prerequisite: Configure your Personal Access Token

terraform {
  required_providers {
    konnect = {
      source  = "kong/konnect"
    }
  }
}

provider "konnect" {
  personal_access_token = "$KONNECT_TOKEN"
  server_url            = "https://us.api.konghq.com/"
}

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Add the following to your Terraform configuration to create a Konnect Gateway Plugin:

resource "konnect_gateway_plugin_confluent_consume" "my_confluent_consume" {
  enabled = true

  config = {
    bootstrap_servers = [
      {
        host = var.bootstrap_server_host
        port = 9092
      }    ]
    topics = [
      {
        name = var.kafka_topic
      }    ]
    mode = "http-get"
    cluster_api_key = var.api_key
    cluster_api_secret = var.api_secret

    consumer_group = {
      mode = "manual"
      consumer_group_id = var.consumer_group_id
    }
  }
  tags = []

  control_plane_id = konnect_gateway_control_plane.my_konnect_cp.id
  service = {
    id = konnect_gateway_service.my_service.id
  }
}

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This example requires the following variables to be added to your manifest. You can specify values at runtime by setting TF_VAR_name=value.

variable "consumer_group_id" {
  type = string
}

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Add this section to your kong.yaml configuration file:

kong.yaml

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_format_version: "3.0"
plugins:
  - name: confluent-consume
    route: routeName|Id
    config:
      bootstrap_servers:
      - host: ${{ env "DECK_BOOTSTRAP_SERVER_HOST" }}
        port: 9092
      topics:
      - name: ${{ env "DECK_KAFKA_TOPIC" }}
      mode: http-get
      cluster_api_key: ${{ env "DECK_API_KEY" }}
      cluster_api_secret: ${{ env "DECK_API_SECRET" }}
      consumer_group:
        mode: manual
        consumer_group_id: ${{ env "DECK_CONSUMER_GROUP_ID" }}

Make sure to replace the following placeholders with your own values:

routeName|Id: The id or name of the route the plugin configuration will target.

Make the following request:

curl -i -X POST http://localhost:8001/routes/{routeName|Id}/plugins/ \
    --header "Accept: application/json" \
    --header "Content-Type: application/json" \
    --data '
    {
      "name": "confluent-consume",
      "config": {
        "bootstrap_servers": [
          {
            "host": "'$BOOTSTRAP_SERVER_HOST'",
            "port": 9092
          }
        ],
        "topics": [
          {
            "name": "'$KAFKA_TOPIC'"
          }
        ],
        "mode": "http-get",
        "cluster_api_key": "'$API_KEY'",
        "cluster_api_secret": "'$API_SECRET'",
        "consumer_group": {
          "mode": "manual",
          "consumer_group_id": "'$CONSUMER_GROUP_ID'"
        }
      },
      "tags": []
    }
    '

Copied!

Make sure to replace the following placeholders with your own values:

routeName|Id: The id or name of the route the plugin configuration will target.

Make the following request:

curl -X POST https://{region}.api.konghq.com/v2/control-planes/{controlPlaneId}/core-entities/routes/{routeId}/plugins/ \
    --header "accept: application/json" \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer $KONNECT_TOKEN" \
    --data '
    {
      "name": "confluent-consume",
      "config": {
        "bootstrap_servers": [
          {
            "host": "'$BOOTSTRAP_SERVER_HOST'",
            "port": 9092
          }
        ],
        "topics": [
          {
            "name": "'$KAFKA_TOPIC'"
          }
        ],
        "mode": "http-get",
        "cluster_api_key": "'$API_KEY'",
        "cluster_api_secret": "'$API_SECRET'",
        "consumer_group": {
          "mode": "manual",
          "consumer_group_id": "'$CONSUMER_GROUP_ID'"
        }
      },
      "tags": []
    }
    '

Copied!

Make sure to replace the following placeholders with your own values:

region: Geographic region where your Kong Konnect is hosted and operates.
KONNECT_TOKEN: Your Personal Access Token (PAT) associated with your Konnect account.
controlPlaneId: The id of the control plane.
routeId: The id of the route the plugin configuration will target.

See the Konnect API reference to learn about region-specific URLs and personal access tokens.

echo "
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
  name: confluent-consume
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
    konghq.com/tags: ''
config:
  bootstrap_servers:
  - host: '$BOOTSTRAP_SERVER_HOST'
    port: 9092
  topics:
  - name: '$KAFKA_TOPIC'
  mode: http-get
  cluster_api_key: '$API_KEY'
  cluster_api_secret: '$API_SECRET'
  consumer_group:
    mode: manual
    consumer_group_id: '$CONSUMER_GROUP_ID'
plugin: confluent-consume
" | kubectl apply -f -

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Next, apply the KongPlugin resource by annotating the httproute or ingress resource:

kubectl annotate -n kong httproute  konghq.com/plugins=confluent-consume

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kubectl annotate -n kong ingress  konghq.com/plugins=confluent-consume

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Prerequisite: Configure your Personal Access Token

terraform {
  required_providers {
    konnect = {
      source  = "kong/konnect"
    }
  }
}

provider "konnect" {
  personal_access_token = "$KONNECT_TOKEN"
  server_url            = "https://us.api.konghq.com/"
}

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Add the following to your Terraform configuration to create a Konnect Gateway Plugin:

resource "konnect_gateway_plugin_confluent_consume" "my_confluent_consume" {
  enabled = true

  config = {
    bootstrap_servers = [
      {
        host = var.bootstrap_server_host
        port = 9092
      }    ]
    topics = [
      {
        name = var.kafka_topic
      }    ]
    mode = "http-get"
    cluster_api_key = var.api_key
    cluster_api_secret = var.api_secret

    consumer_group = {
      mode = "manual"
      consumer_group_id = var.consumer_group_id
    }
  }
  tags = []

  control_plane_id = konnect_gateway_control_plane.my_konnect_cp.id
  route = {
    id = konnect_gateway_route.my_route.id
  }
}

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This example requires the following variables to be added to your manifest. You can specify values at runtime by setting TF_VAR_name=value.

variable "consumer_group_id" {
  type = string
}

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Add this section to your kong.yaml configuration file:

kong.yaml

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_format_version: "3.0"
plugins:
  - name: confluent-consume
    consumer: consumerName|Id
    config:
      bootstrap_servers:
      - host: ${{ env "DECK_BOOTSTRAP_SERVER_HOST" }}
        port: 9092
      topics:
      - name: ${{ env "DECK_KAFKA_TOPIC" }}
      mode: http-get
      cluster_api_key: ${{ env "DECK_API_KEY" }}
      cluster_api_secret: ${{ env "DECK_API_SECRET" }}
      consumer_group:
        mode: manual
        consumer_group_id: ${{ env "DECK_CONSUMER_GROUP_ID" }}

Make sure to replace the following placeholders with your own values:

consumerName|Id: The id or name of the consumer the plugin configuration will target.

Make the following request:

curl -i -X POST http://localhost:8001/consumers/{consumerName|Id}/plugins/ \
    --header "Accept: application/json" \
    --header "Content-Type: application/json" \
    --data '
    {
      "name": "confluent-consume",
      "config": {
        "bootstrap_servers": [
          {
            "host": "'$BOOTSTRAP_SERVER_HOST'",
            "port": 9092
          }
        ],
        "topics": [
          {
            "name": "'$KAFKA_TOPIC'"
          }
        ],
        "mode": "http-get",
        "cluster_api_key": "'$API_KEY'",
        "cluster_api_secret": "'$API_SECRET'",
        "consumer_group": {
          "mode": "manual",
          "consumer_group_id": "'$CONSUMER_GROUP_ID'"
        }
      },
      "tags": []
    }
    '

Copied!

Make sure to replace the following placeholders with your own values:

consumerName|Id: The id or name of the consumer the plugin configuration will target.

Make the following request:

curl -X POST https://{region}.api.konghq.com/v2/control-planes/{controlPlaneId}/core-entities/consumers/{consumerId}/plugins/ \
    --header "accept: application/json" \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer $KONNECT_TOKEN" \
    --data '
    {
      "name": "confluent-consume",
      "config": {
        "bootstrap_servers": [
          {
            "host": "'$BOOTSTRAP_SERVER_HOST'",
            "port": 9092
          }
        ],
        "topics": [
          {
            "name": "'$KAFKA_TOPIC'"
          }
        ],
        "mode": "http-get",
        "cluster_api_key": "'$API_KEY'",
        "cluster_api_secret": "'$API_SECRET'",
        "consumer_group": {
          "mode": "manual",
          "consumer_group_id": "'$CONSUMER_GROUP_ID'"
        }
      },
      "tags": []
    }
    '

Copied!

Make sure to replace the following placeholders with your own values:

region: Geographic region where your Kong Konnect is hosted and operates.
KONNECT_TOKEN: Your Personal Access Token (PAT) associated with your Konnect account.
controlPlaneId: The id of the control plane.
consumerId: The id of the consumer the plugin configuration will target.

See the Konnect API reference to learn about region-specific URLs and personal access tokens.

echo "
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
  name: confluent-consume
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
    konghq.com/tags: ''
config:
  bootstrap_servers:
  - host: '$BOOTSTRAP_SERVER_HOST'
    port: 9092
  topics:
  - name: '$KAFKA_TOPIC'
  mode: http-get
  cluster_api_key: '$API_KEY'
  cluster_api_secret: '$API_SECRET'
  consumer_group:
    mode: manual
    consumer_group_id: '$CONSUMER_GROUP_ID'
plugin: confluent-consume
" | kubectl apply -f -

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Next, apply the KongPlugin resource by annotating the KongConsumer resource:

kubectl annotate -n kong kongconsumer CONSUMER_NAME konghq.com/plugins=confluent-consume

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Prerequisite: Configure your Personal Access Token

terraform {
  required_providers {
    konnect = {
      source  = "kong/konnect"
    }
  }
}

provider "konnect" {
  personal_access_token = "$KONNECT_TOKEN"
  server_url            = "https://us.api.konghq.com/"
}

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Add the following to your Terraform configuration to create a Konnect Gateway Plugin:

resource "konnect_gateway_plugin_confluent_consume" "my_confluent_consume" {
  enabled = true

  config = {
    bootstrap_servers = [
      {
        host = var.bootstrap_server_host
        port = 9092
      }    ]
    topics = [
      {
        name = var.kafka_topic
      }    ]
    mode = "http-get"
    cluster_api_key = var.api_key
    cluster_api_secret = var.api_secret

    consumer_group = {
      mode = "manual"
      consumer_group_id = var.consumer_group_id
    }
  }
  tags = []

  control_plane_id = konnect_gateway_control_plane.my_konnect_cp.id
  consumer = {
    id = konnect_gateway_consumer.my_consumer.id
  }
}

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This example requires the following variables to be added to your manifest. You can specify values at runtime by setting TF_VAR_name=value.

variable "consumer_group_id" {
  type = string
}

Copied!

Confluent Consume

Fixed consumer group IDv3.15+

Prerequisites

Environment variables

Set up the plugin

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