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Couchbase Pod Templating

    April 13, 2025
    + 12
    The Autonomous Operator allows users to define a pod template to use when creating pods for a Couchbase Server class. Modifying pod metadata such as labels and annotations will update the pod in-place. Any other modification will result in a cluster upgrade in order to fulfill the request. The Operator reserves the right to modify or replace any field.

    Operators Attribute Modifications

    Some of the attributes in the pod template are overridden by the Autonomous Operator. The following attributes are overridden:

    Metadata

    • metadata.name - The name of the pod is overridden by the Autonomous Operator.

    • metadata.labels - The Autonomous Operator adds labels to the pod to identify the pod as part of a operator managed Couchbase cluster.

    • metadata.annotaions - The Autonomous Operator adds annotations to the pod to identify the pod as part of a operator managed Couchbase cluster.

    Spec

    • spec.containers - The Autonomous Operator overrides any containers to run the Couchbase Server process and any other required containers.

    • spec.restartPolicy - The Autonomous Operator overrides the restart policy to Never.

    • spec.hostname - The Autonomous Operator overrides the hostname to the pod name.

    • spec.subdomain - The Autonomous Operator overrides the subdomain to the cluster name.

    • spec.terminationGracePeriodSeconds - The Autonomous Operator overrides the termination grace period to 1200 seconds.

    • spec.securityContext - The Autonomous Operator overrides the security context to the security context provided in cluster.spec.security.podSecurityContext.

    • spec.readinessGates - The Autonomous Operator overrides the readiness gates to manage the readiness of the pods.

    • spec.affinity.podAntiAffinity.requiredDuringSchedulingIgnoredDuringExecution - The Autonomous Operator adds a pod anti-affinity rule to ensure that pods are not scheduled on the same node if cluster.spec.antiAffinity is set to true.

    • spec.nodeSelector - The Autonomous Operator adds a node selector to ensure that pods are scheduled on the correct Availability Zone if they are enabled for the pods server class.

    • spec.hostAliases - The Autonomous Operator overrides any host aliases to map 127.0.0.1 to localhost the pod DNS name, unless istio mode is enabled.

    • spec.volumes - The Autonomous Operator adds any required volumes to the pod.