traefik/docs/content/reference/routing-configuration/http/middlewares/apikey.md

title	description
API Key Authentication	Traefik Hub API Gateway - The API Key authentication middleware allows you to secure an API by requiring a secret key, base64 encoded or not, to be given, via an HTTP header, a cookie or a query parameter.

!!! info "Traefik Hub Feature" This middleware is available exclusively in Traefik Hub. Learn more about Traefik Hub's advanced features.

The API Key authentication middleware allows you to secure an API by requiring a secret key, base64 encoded or not, to be given, via an HTTP header, a cookie or a query parameter.

---

Configuration Example

apiVersion: traefik.io/v1alpha1
kind: Middleware
metadata:
  name: test-apikey
  namespace: apps
spec:
  plugin:
    apiKey:
      keySource:
        headerAuthScheme: Bearer
        header: Authorization
      secretNonBase64Encoded: true
      secretValues:
        - "urn:k8s:secret:apikey:secret"
        - "urn:k8s:secret:apikey:othersecret" 

apiVersion: v1
kind: Secret
type: Opaque
metadata:
  name: apikey
  namespace: whoami
stringData:
  secret: $2y$05$D4SPFxzfWKcx1OXfVhRbvOTH/QB0Lm6AXTk8.NOmU4rPLX2t6UUuW # htpasswd -nbB "" foo | cut -c 2-
  othersecret: $2y$05$HbLL.g5dUqJippH0RuAGL.RaM9wNS2cT7hp6.vbv5okdCmVBSDzzK # htpasswd -nbB "" bar | cut -c 2-

Configuration Options

Field	Description	Default	Required
keySource.header	Defines the header name containing the secret sent by the client. Either keySource.header or keySource.query or keySource.cookie must be set.	""	No
keySource.headerAuthScheme	Defines the scheme when using Authorization as header name. Check out the Authorization header documentation.	""	No
keySource.query	Defines the query parameter name containing the secret sent by the client. Either keySource.header or keySource.query or keySource.cookie must be set.	""	No
keySource.cookie	Defines the cookie name containing the secret sent by the client. Either keySource.header or keySource.query or keySource.cookie must be set.	""	No
secretNonBase64Encoded	Defines whether the secret sent by the client is base64 encoded.	false	No
secretValues	Contain the hash of the API keys. Supported hashing algorithms are Bcrypt, SHA1 and MD5. The hash should be generated using htpasswd. Can reference a Kubernetes Secret using the URN format: urn:k8s:secret:[name]:[valueKey]	[]	Yes

{!traefik-for-business-applications.md!}