OAuth 2.0 Introspection: Validate an access token - Plugin

Validate an access token

Configure the plugin to use an OAuth 2.0 server’s introspection endpoint to validate an access token.

Environment variables

AUTHORIZATION_HEADER_VALUE: The value to set for the Authorization header to access the introspection endpoint.
INTROSPECTION_URL: The full URL to the introspection endpoint.

Set up the plugin

Add this section to your declarative configuration file:

_format_version: "3.0"
plugins:
  - name: oauth2-introspection
    config:
      introspection_url: ${{ env "DECK_INTROSPECTION_URL" }}
      authorization_value: ${{ env "DECK_AUTHORIZATION_HEADER_VALUE" }}

Make the following request:

curl -i -X POST http://localhost:8001/plugins/ \
    --header "Accept: application/json" \
    --header "Content-Type: application/json" \
    --data '
    {
      "name": "oauth2-introspection",
      "config": {
        "introspection_url": "'$INTROSPECTION_URL'",
        "authorization_value": "'$AUTHORIZATION_HEADER_VALUE'"
      }
    }
    '

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 $KONNECT_TOKEN" \
    --data '
    {
      "name": "oauth2-introspection",
      "config": {
        "introspection_url": "'$INTROSPECTION_URL'",
        "authorization_value": "'$AUTHORIZATION_HEADER_VALUE'"
      }
    }
    '

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

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

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: oauth2-introspection
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
  labels:
    global: 'true'
config:
  introspection_url: '$INTROSPECTION_URL'
  authorization_value: '$AUTHORIZATION_HEADER_VALUE'
plugin: oauth2-introspection
" | kubectl apply -f -

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/"
}

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

resource "konnect_gateway_plugin_oauth2_introspection" "my_oauth2_introspection" {
  enabled = true

  config = {
    introspection_url = var.introspection_url
    authorization_value = var.authorization_header_value
  }

  control_plane_id = konnect_gateway_control_plane.my_konnect_cp.id
}

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 "introspection_url" {
  type = string
}

Add this section to your declarative configuration file:

_format_version: "3.0"
plugins:
  - name: oauth2-introspection
    service: serviceName|Id
    config:
      introspection_url: ${{ env "DECK_INTROSPECTION_URL" }}
      authorization_value: ${{ env "DECK_AUTHORIZATION_HEADER_VALUE" }}

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": "oauth2-introspection",
      "config": {
        "introspection_url": "'$INTROSPECTION_URL'",
        "authorization_value": "'$AUTHORIZATION_HEADER_VALUE'"
      }
    }
    '

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 $KONNECT_TOKEN" \
    --data '
    {
      "name": "oauth2-introspection",
      "config": {
        "introspection_url": "'$INTROSPECTION_URL'",
        "authorization_value": "'$AUTHORIZATION_HEADER_VALUE'"
      }
    }
    '

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

region: Geographic region where your Kong Konnect is hosted and operates.
controlPlaneId: The id of the control plane.
KONNECT_TOKEN: Your Personal Access Token (PAT) associated with your Konnect account.
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: oauth2-introspection
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
config:
  introspection_url: '$INTROSPECTION_URL'
  authorization_value: '$AUTHORIZATION_HEADER_VALUE'
plugin: oauth2-introspection
" | kubectl apply -f -

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

kubectl annotate -n kong service SERVICE_NAME konghq.com/plugins=oauth2-introspection

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/"
}

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

resource "konnect_gateway_plugin_oauth2_introspection" "my_oauth2_introspection" {
  enabled = true

  config = {
    introspection_url = var.introspection_url
    authorization_value = var.authorization_header_value
  }

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

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 "introspection_url" {
  type = string
}

Add this section to your declarative configuration file:

_format_version: "3.0"
plugins:
  - name: oauth2-introspection
    route: routeName|Id
    config:
      introspection_url: ${{ env "DECK_INTROSPECTION_URL" }}
      authorization_value: ${{ env "DECK_AUTHORIZATION_HEADER_VALUE" }}

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": "oauth2-introspection",
      "config": {
        "introspection_url": "'$INTROSPECTION_URL'",
        "authorization_value": "'$AUTHORIZATION_HEADER_VALUE'"
      }
    }
    '

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 $KONNECT_TOKEN" \
    --data '
    {
      "name": "oauth2-introspection",
      "config": {
        "introspection_url": "'$INTROSPECTION_URL'",
        "authorization_value": "'$AUTHORIZATION_HEADER_VALUE'"
      }
    }
    '

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

region: Geographic region where your Kong Konnect is hosted and operates.
controlPlaneId: The id of the control plane.
KONNECT_TOKEN: Your Personal Access Token (PAT) associated with your Konnect account.
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: oauth2-introspection
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
config:
  introspection_url: '$INTROSPECTION_URL'
  authorization_value: '$AUTHORIZATION_HEADER_VALUE'
plugin: oauth2-introspection
" | kubectl apply -f -

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

kubectl annotate -n kong httproute  konghq.com/plugins=oauth2-introspection

kubectl annotate -n kong ingress  konghq.com/plugins=oauth2-introspection

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/"
}

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

resource "konnect_gateway_plugin_oauth2_introspection" "my_oauth2_introspection" {
  enabled = true

  config = {
    introspection_url = var.introspection_url
    authorization_value = var.authorization_header_value
  }

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

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 "introspection_url" {
  type = string
}

OAuth 2.0 Introspection

Validate an access token

Environment variables

Set up the plugin

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