Args:
    namespace: The namespace to create the cluster in
    name: Name of the database cluster
    engine_type: Type of database engine (e.g. 'pxc')
    storage_size: Size of storage using the Mi, Gi suffix
    replicas: Number of database replicas
    cpu: CPU cores per replica
    memory: Memory per replica using the Mi, Gi suffix
    allow_unsafe: Allow unsafe configurations
    proxy_replicas: Number of proxy replicas