var (
    // GroupTag holds the resource group for the context.
    GroupTag = monitoring.MustCreateLabel(group)

    // VersionTag holds the resource version for the context.
    VersionTag = monitoring.MustCreateLabel(version)

    // ResourceTag holds the resource name for the context.
    ResourceTag = monitoring.MustCreateLabel(resourceTag)

    // ReasonTag holds the error reason for the context.
    ReasonTag = monitoring.MustCreateLabel(reason)

    // StatusTag holds the error code for the context.
    StatusTag = monitoring.MustCreateLabel(status)
)

type Options struct {
    // Schemas provides a description of all configuration resources.
    Schemas collection.Schemas

    // DomainSuffix is the DNS domain suffix for Pilot CRD resources,
    // e.g. cluster.local.
    DomainSuffix string

    // Port where the webhook is served. the number should be greater than 1024 for non-root
    // user, because non-root user cannot bind port number less than 1024
    // Mainly used for testing. Webhook server is started by Istiod.
    Port uint

    // Use an existing mux instead of creating our own.
    Mux *http.ServeMux
}

type Webhook struct {
    // contains filtered or unexported fields
}