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Scale applications based on IBM MQ Queue

Availability: v2.0+ Maintainer: Community

Trigger Specification

This specification describes the ibmmq trigger for IBM MQ Queue.

triggers:
- type: ibmmq
  metadata:
    host: <ibm-host> # REQUIRED - IBM MQ Queue Manager Admin REST Endpoint
    queueManager: <queue-manager> # REQUIRED - Your queue manager
    queueName: <queue-name> # REQUIRED - Your queue name
    tlsDisabled: <TLS enabled/disabled> # OPTIONAL - Set 'true' to disable TLS. Default: false
    queueDepth: <queue-depth> # OPTIONAL - Queue depth target for HPA. Default: 5 messages
    usernameFromEnv: <admin-user> # Optional: Provide admin username from env instead of as a secret
    passwordFromEnv: <admin-password> # Optional: Provide admin password from env instead of as a secret

Parameter list:

  • host - IBM MQ Queue Manager Admin REST Endpoint. Example URI endpoint structure on IBM cloud https://example.mq.appdomain.cloud/ibmmq/rest/v2/admin/action/qmgr/QM/mqsc.
  • queueManager - Name of the queue manager from which messages will be consumed.
  • queueName - Name of the Queue within the Queue Manager defined from which messages will be consumed.
  • tlsDisabled - Can be set to ’true’ to disable TLS. (Values: true, false , Default: false, Optional)
  • queueDepth - Queue depth Target for HPA. (Default: 5, Optional)
  • usernameFromEnv - Provide admin username from env instead of as a secret. (Optional)
  • passwordFromEnv - Provide admin password from env instead of as a secret. (Optional)

Authentication Parameters

TriggerAuthentication CRD is used to connect and authenticate to IBM MQ:

Password Authentication:

  • ADMIN_USER - The admin REST endpoint username for your MQ Queue Manager.
  • ADMIN_PASSWORD - The admin REST endpoint API key for your MQ Queue Manager.
  • usernameFromEnv - Provide admin username from env instead of as a secret. (Optional)
  • passwordFromEnv - Provide admin password from env instead of as a secret. (Optional)

Example

apiVersion: v1
kind: Secret
metadata:
  name: keda-ibmmq-secret
data:
  ADMIN_USER: <encoded-username> # REQUIRED - Admin Username
  ADMIN_PASSWORD: <encoded-password> # REQUIRED - Admin Password
---
apiVersion: keda.sh/v1alpha1
kind: ScaledObject
metadata:
  name: ibmmq-scaledobject
  namespace: default
  labels:
    deploymentName: ibmmq-deployment
spec:
  scaleTargetRef:
    name: ibmmq-deployment
  pollingInterval: 5 # OPTIONAL - Default: 30 seconds
  cooldownPeriod: 30 # OPTIONAL - Default: 300 seconds
  maxReplicaCount: 18 # OPTIONAL - Default: 100
  triggers:
    - type: ibmmq
      metadata:
        host: <ibm-host> # REQUIRED - IBM MQ Queue Manager Admin REST Endpoint
        queueManager: <queue-manager> # REQUIRED - Your queue manager
        queueName: <queue-name> # REQUIRED - Your queue name
        tlsDisabled: <TLS enabled/disabled> # OPTIONAL - Set 'true' to disable TLS. Default: false
        queueDepth: <queue-depth> # OPTIONAL - Queue depth target for HPA. Default: 5 messages
        usernameFromEnv: <admin-user> # Optional: Provide admin username from env instead of as a secret
        passwordFromEnv: <admin-password> # Optional: Provide admin password from env instead of as a secret 
      authenticationRef:
        name: keda-ibmmq-trigger-auth
---
apiVersion: keda.sh/v1alpha1
kind: TriggerAuthentication
metadata:
  name: keda-ibmmq-trigger-auth
  namespace: default
spec:
  secretTargetRef:
    - parameter: username
      name: keda-ibmmq-secret
      key: ADMIN_USER
    - parameter: password
      name: keda-ibmmq-secret
      key: ADMIN_PASSWORD


Currently available scalers for KEDA