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Remediation

Before proceeding, ensure that the cluster is not actively used for production workloads. Alpha features cannot be disabled on an existing cluster; remediation requires creating a new cluster without alpha features and migrating workloads as needed.

Create a New Cluster Without Alpha Features​

From gcloud CLI​

  1. Do not include the --enable-kubernetes-alpha flag when creating the cluster

    gcloud container clusters create {{cluster-name}} \
        --location {{location}} \
        --machine-type {{machine-type}} \
        --num-nodes {{node-count}}

    Adjust other flags (e.g., region, node pool size, network settings) to match your workload requirements.

  2. Migrate workloads to the new cluster

    Reconfigure your deployments and services to target the newly created cluster. Update your kubeconfig to point to the new cluster.

  3. Validate workloads and configurations

    • Ensure applications are running as expected in the new cluster.
    • Confirm monitoring, logging, and networking rules are correctly applied.
    • Perform backups of workloads and configurations before decommissioning the old cluster.

  4. Delete the alpha cluster

    Once workloads have been fully migrated and validated, delete the alpha cluster:

    gcloud container clusters delete {{alpha-cluster-name}} \
        --location {{location}}