Non-public cloud support for Azure Log Analytics scaler.

[v-shenoy]

Signed-off-by: Vighnesh Shenoy [email protected]

Added support for three new fields in the trigger metadata for the log analytics scaler, cloud, logAnalyticsResourceURL, activeDirectoryEndpoint. The cloud parameter can be azureChinaCloud, azureUSGovernmentCloud, azurePublicCloud, or private (default is azurePublicCloud).

Sample ScaledObject definition -

apiVersion: keda.sh/v1alpha1
kind: ScaledObject
metadata:
  name: log-analytics-so
spec:
  scaleTargetRef: 
    name: log-analytics-deployment
  pollingInterval: 10
  cooldownPeriod: 30
  minReplicaCount: 0
  maxReplicaCount: 2
  triggers:
    - type: azure-log-analytics
      metadata:
        tenantId: <tenant-id>
        clientId: <client-id>
        clientSecret: <client-secret>
        workspaceId: <workspace-id>
        query: <query>
        cloud: "private"
        logAnalyticsResourceURL: <resource-url>
        activeDirectoryEndpoint: <ad-endpoint>

Documentation PR - kedacore/keda-docs#734

Checklist

• Commits are signed with Developer Certificate of Origin (DCO - learn more)
• Tests have been added
• A PR is opened to update our Helm chart (repo) (if applicable, ie. when deployment manifests are modified)
• A PR is opened to update the documentation on (repo) (if applicable)
• Changelog has been updated and is aligned with our changelog requirements

Relates to #1916

[JorTurFer]

LGTM!
Please fix the conflict with the changelog 🙏

[v-shenoy]

LGTM! Please fix the conflict with the changelog 🙏

Rebased.

[JorTurFer]

Thanks for doing this