v1alpha1

type Exporter string

type Instrumenter struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec   InstrumenterSpec   `json:"spec,omitempty"`
	Status InstrumenterStatus `json:"status,omitempty"`
}

type InstrumenterList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []Instrumenter `json:"items"`
}

type InstrumenterSpec struct {
	// Image allows overriding the autoinstrumenter container image for development purposes
	// +kubebuilder:validate:MinLength:=1
	// +kubebuilder:default:="grafana/ebpf-autoinstrument:latest"
	// TODO: make Image values optional and use relatedImages sections in bundle
	Image string `json:"image,omitempty"`

	// ImagePullPolicy allows overriding the container pull policy for development purposes
	// +kubebuilder:default:="IfNotPresent"
	ImagePullPolicy v1.PullPolicy `json:"imagePullPolicy,omitempty"`

	// Exporters define the exporter endpoints that the autoinstrumenter must support
	// +optional
	// +kubebuilder:default:={"Prometheus"}
	Export []Exporter `json:"export"`

	// Selector overrides the selection of Pods and executables to instrument
	// +kubebuilder:default:={portLabel:"grafana.com/instrument-port"}
	Selector Selector `json:"selector,omitempty"`

	// Prometheus allows configuring the autoinstrumenter as a Prometheus pull exporter.
	// +kubebuilder:default:={path:"/metrics"}
	Prometheus Prometheus `json:"prometheus,omitempty"`

	// OpenTelemetry allows configuring the autoinstrumenter as an OpenTelemetry metrics
	// and traces exporter
	// +kubebuilder:default:={interval:"5s"}
	OpenTelemetry OpenTelemetry `json:"openTelemetry,omitempty"`

	// OverrideEnv allows overriding the autoinstrumenter env vars for fine-grained
	// configuration
	// +optional
	OverrideEnv []v1.EnvVar `json:"overrideEnv,omitempty"`
}

type InstrumenterStatus struct {
}

type OpenTelemetry struct {
	// Endpoint of the OpenTelemetry collector
	// +optional
	// TODO: properly validate URL (or empty value)
	Endpoint string `json:"endpoint,omitempty"`

	// InsecureSkipVerify controls whether the instrumenter OTEL client verifies the server's
	// certificate chain and host name.
	// If set to `true`, the OTEL client accepts any certificate presented by the server
	// and any host name in that certificate. In this mode, TLS is susceptible to machine-in-the-middle
	// attacks. This option should be used only for testing and development purposes.
	// +kubebuilder:default:=false
	InsecureSkipVerify bool `json:"insecureSkipVerify,omitempty"`

	// Interval is the intervening time between metrics exports
	// +kubebuilder:default:="5s"
	Interval metav1.Duration `json:"interval,omitempty"`
}

type Prometheus struct {
	// +kubebuilder:default:="/metrics"
	Path string `json:"path,omitempty"`

	// +kubebuilder:default:=9102
	// +kubebuilder:validate:Minimum:=1
	// +kubebuilder:validate:Maximum:=65535
	Port int `json:"port,omitempty"`

	// +kubebuilder:default:={scrape:"prometheus.io/scrape"}
	Annotations PrometheusAnnotations `json:"annotations,omitempty"`
}

type PrometheusAnnotations struct {
	// +kubebuilder:default:="prometheus.io/scrape"
	Scrape string `json:"scrape,omitempty"`

	// +kubebuilder:default:="prometheus.io/scheme"
	Scheme string `json:"scheme,omitempty"`

	// +kubebuilder:default:="prometheus.io/port"
	Port string `json:"port,omitempty"`

	// +kubebuilder:default:="prometheus.io/path"
	Path string `json:"path,omitempty"`
}

type Selector struct {
	// PortLabel specifies which Pod label would specify which executable needs to be instrumented,
	// according to the port it opens.
	// Any pod containing the label would be selected for instrumentation
	// +optional
	// +kubebuilder:default:="grafana.com/instrument-port"
	PortLabel string `json:"portLabel"`
}