[poc] APM Service Monitors for SSI

api/datadoghq/v1alpha1/datadogservicemonitor_types.go

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+// Unless explicitly stated otherwise all files in this repository are licensed
+// under the Apache License Version 2.0.
+// This product includes software developed at Datadog (https://www.datadoghq.com/).
+// Copyright 2016-present Datadog, Inc.
+
+package v1alpha1
+
+import (
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// DatadogServiceMonitorSpec defines the desired state of DatadogServiceMonitor
+type DatadogServiceMonitorSpec struct {
+	// Name is the name of the target. It will be appended to the pod annotations to identify the target that was used.
+	// +optional
+	Name string `json:"name,omitempty"`
+	// PodSelector is the pod selector to match the pods to apply the auto instrumentation to. It will be used in
+	// conjunction with the NamespaceSelector to match the pods.
+	// +optional
+	PodSelector *metav1.LabelSelector `json:"podSelector,omitempty"`
+	// NamespaceSelector is the namespace selector to match the namespaces to apply the auto instrumentation to. It will
+	// be used in conjunction with the Selector to match the pods.
+	// +optional
+	NamespaceSelector *NamespaceSelector `json:"namespaceSelector,omitempty"`
+	// TracerVersions is a map of tracer versions to inject for workloads that match the target. The key is the tracer
+	// name and the value is the version to inject.
+	// +optional
+	TracerVersions map[string]string `json:"ddTraceVersions,omitempty"`
+	// TracerConfigs is a list of configuration options to use for the installed tracers. These options will be added
+	// as environment variables in addition to the injected tracer.
+	// +optional
+	// +listType=map
+	// +listMapKey=name
+	TracerConfigs []corev1.EnvVar `json:"ddTraceConfigs,omitempty"`
+	// Priority is the priority of the service monitor.
+	// +optional
+	Priority int `json:"priority,omitempty"`
+}
+
+// NamespaceSelector is a struct to store the configuration for the namespace selector. It can be used to match the
+// namespaces to apply the auto instrumentation to.
+type NamespaceSelector struct {
+	// MatchNames is a list of namespace names to match. If empty, all namespaces are matched.
+	// +optional
+	MatchNames []string `json:"matchNames,omitempty"`
+	// MatchLabels is a map of key-value pairs to match the labels of the namespace. The labels and expressions are
+	// ANDed. This cannot be used with MatchNames.
+	// +optional
+	MatchLabels map[string]string `json:"matchLabels,omitempty"`
+	// MatchExpressions is a list of label selector requirements to match the labels of the namespace. The labels and
+	// expressions are ANDed. This cannot be used with MatchNames.
+	// +optional
+	MatchExpressions []metav1.LabelSelectorRequirement `json:"matchExpressions,omitempty"`
+}
+
+// DatadogServiceMonitorStatus defines the observed state of DatadogServiceMonitor
+type DatadogServiceMonitorStatus struct {
+	// Conditions Represents the latest available observations of a DatadogServiceMonitor's current state.
+	// +listType=map
+	// +listMapKey=type
+	Conditions []DatadogServiceMonitorCondition `json:"conditions,omitempty"`
+}
+
+// DatadogServiceMonitorCondition describes the state of a DatadogServiceMonitor at a certain point.
+// +k8s:openapi-gen=true
+type DatadogServiceMonitorCondition struct {
+	// Type of DatadogServiceMonitor condition.
+	Type DatadogServiceMonitorConditionType `json:"type"`
+	// Status of the condition, one of True, False, Unknown.
+	Status corev1.ConditionStatus `json:"status"`
+	// Last time the condition transitioned from one status to another.
+	// +optional
+	LastTransitionTime metav1.Time `json:"lastTransitionTime,omitempty"`
+	// Last time the condition was updated.
+	// +optional
+	LastUpdateTime metav1.Time `json:"lastUpdateTime,omitempty"`
+	// The reason for the condition's last transition.
+	// +optional
+	Reason string `json:"reason,omitempty"`
+	// A human readable message indicating details about the transition.
+	// +optional
+	Message string `json:"message,omitempty"`
+}
+
+// DatadogServiceMonitorConditionType type use to represent a DatadogServiceMonitor condition
+type DatadogServiceMonitorConditionType string
+
+const (
+	// DatadogServiceMonitorConditionTypeActive DatadogServiceMonitor is active (referenced by an HPA), Datadog will only be queried for active metrics
+	DatadogServiceMonitorConditionTypeActive DatadogServiceMonitorConditionType = "Active"
+	// DatadogServiceMonitorConditionTypeUpdated DatadogServiceMonitor is updated
+	DatadogServiceMonitorConditionTypeUpdated DatadogServiceMonitorConditionType = "Updated"
+	// DatadogServiceMonitorConditionTypeValid DatadogServiceMonitor.spec.podSelector is invalid
+	DatadogServiceMonitorConditionTypeValid DatadogServiceMonitorConditionType = "Valid"
+	// DatadogServiceMonitorConditionTypeError the controller wasn't able to handle this DatadogServiceMonitor
+	DatadogServiceMonitorConditionTypeError DatadogServiceMonitorConditionType = "Error"
+)
+
+// DatadogServiceMonitor allows a user to define and manage datadog service monitors from Kubernetes cluster.
+// +kubebuilder:object:root=true
+// +kubebuilder:subresource:status
+// +kubebuilder:resource:path=datadogservicemonitors,scope=Namespaced
+// +kubebuilder:printcolumn:name="active",type="string",JSONPath=".status.conditions[?(@.type=='Active')].status"
+// +kubebuilder:printcolumn:name="valid",type="string",JSONPath=".status.conditions[?(@.type=='Valid')].status"
+// +kubebuilder:printcolumn:name="update time",type="date",JSONPath=".status.conditions[?(@.type=='Updated')].lastUpdateTime"
+// +k8s:openapi-gen=true
+// +genclient
+type DatadogServiceMonitor struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   DatadogServiceMonitorSpec   `json:"spec,omitempty"`
+	Status DatadogServiceMonitorStatus `json:"status,omitempty"`
+}
+
+// DatadogServiceMonitorList contains a list of DatadogServiceMonitor
+// +kubebuilder:object:root=true
+type DatadogServiceMonitorList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []DatadogServiceMonitor `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&DatadogServiceMonitor{}, &DatadogServiceMonitorList{})
+}