Merge pull request #82 from saswatamcode/queryfrontend

Add Thanos Query frontend in Query CRD and deployment

api/v1alpha1/thanosquery_types.go

@@ -17,6 +17,7 @@ limitations under the License.
 package v1alpha1
 
 import (
+	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
@@ -44,13 +45,60 @@ type ThanosQuerySpec struct {
 	// +kubebuilder:validation:Optional
 	// +kubebuilder:default:={matchLabels:{"operator.thanos.io/store-api": "true"}}
 	StoreLabelSelector *metav1.LabelSelector `json:"customStoreLabelSelector,omitempty"`
+	// QueryFrontend is the configuration for the Query Frontend
+	// If you specify this, the operator will create a Query Frontend in front of your
+	// Querier deployment.
+	// +kubebuilder:validation:Optional
+	QueryFrontend *QueryFrontendSpec `json:"queryFrontend,omitempty"`
 	// Additional configuration for the Thanos components. Allows you to add
 	// additional args, containers, volumes, and volume mounts to Thanos Deployments,
 	// and StatefulSets. Ideal to use for things like sidecars.
 	// +kubebuilder:validation:Optional
 	Additional `json:",inline"`
 }
 
+// QueryFrontendSpec defines the desired state of ThanosQueryFrontend
+type QueryFrontendSpec struct {
+	CommonThanosFields `json:",inline"`
+	// +kubebuilder:validation:Minimum=1
+	// +kubebuilder:default=1
+	Replicas int32 `json:"replicas,omitempty"`
+	// CompressResponses enables response compression
+	// +kubebuilder:default=true
+	CompressResponses bool `json:"compressResponses,omitempty"`
+	// By default, the operator will add the first discoverable Query API to the
+	// Query Frontend, if they have query labels. You can optionally choose to override default
+	// Query selector labels, to select a subset of QueryAPIs to query.
+	// +kubebuilder:validation:Optional
+	// +kubebuilder:default:={matchLabels:{"operator.thanos.io/query-api": "true"}}
+	QueryLabelSelector *metav1.LabelSelector `json:"queryLabelSelector,omitempty"`
+	// LogQueriesLongerThan sets the duration threshold for logging long queries
+	// +kubebuilder:validation:Optional
+	LogQueriesLongerThan *Duration `json:"logQueriesLongerThan,omitempty"`
+	// QueryRangeResponseCacheConfig holds the configuration for the query range response cache
+	// +kubebuilder:validation:Optional
+	QueryRangeResponseCacheConfig *corev1.ConfigMapKeySelector `json:"queryRangeResponseCacheConfig,omitempty"`
+	// QueryRangeSplitInterval sets the split interval for query range
+	// +kubebuilder:validation:Optional
+	QueryRangeSplitInterval *Duration `json:"queryRangeSplitInterval,omitempty"`
+	// LabelsSplitInterval sets the split interval for labels
+	// +kubebuilder:validation:Optional
+	LabelsSplitInterval *Duration `json:"labelsSplitInterval,omitempty"`
+	// QueryRangeMaxRetries sets the maximum number of retries for query range requests
+	// +kubebuilder:validation:Minimum=0
+	// +kubebuilder:default=5
+	QueryRangeMaxRetries int `json:"queryRangeMaxRetries,omitempty"`
+	// LabelsMaxRetries sets the maximum number of retries for label requests
+	// +kubebuilder:validation:Minimum=0
+	// +kubebuilder:default=5
+	LabelsMaxRetries int `json:"labelsMaxRetries,omitempty"`
+	// LabelsDefaultTimeRange sets the default time range for label queries
+	// +kubebuilder:validation:Optional
+	LabelsDefaultTimeRange *Duration `json:"labelsDefaultTimeRange,omitempty"`
+	// Additional configuration for the Thanos components
+	Additional `json:",inline"`
+}
+
 // ThanosQueryStatus defines the observed state of ThanosQuery
 type ThanosQueryStatus struct {
 	// Conditions represent the latest available observations of the state of the Querier.

cmd/main.go

@@ -208,6 +208,7 @@ func main() {
 		setupLog.Error(err, "unable to create controller", "controller", "ThanosRuler")
 		os.Exit(1)
 	}
+
 	//+kubebuilder:scaffold:builder
 
 	if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil {