add datastream support

Signed-off-by: Christian Groschupp <[email protected]>

opensearch-operator/api/v1/opensearch_index_types.go

@@ -4,6 +4,14 @@ import (
 	apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
 )
 
+type OpensearchDatastreamTimestampFieldSpec struct {
+	Name string `json:"name"`
+}
+
+type OpensearchDatastreamSpec struct {
+	TimestampField OpensearchDatastreamTimestampFieldSpec `json:"timestamp_field,omitempty"`
+}
+
 // Describes the specs of an index
 type OpensearchIndexSpec struct {
 	// Configuration options for the index

opensearch-operator/api/v1/opensearch_indextemplate_types.go

@@ -48,6 +48,9 @@ type OpensearchIndexTemplateSpec struct {
 	// Array of wildcard expressions used to match the names of indices during creation
 	IndexPatterns []string `json:"indexPatterns"`
 
+	// Array of wildcard expressions used to match the names of indices during creation
+	DataStream *OpensearchDatastreamSpec `json:"dataStream,omitempty"`
+
 	// The template that should be applied
 	Template OpensearchIndexSpec `json:"template,omitempty"`
 

opensearch-operator/config/crd/bases/opensearch.opster.io_opensearchindextemplates.yaml

@@ -47,6 +47,18 @@ spec:
                 items:
                   type: string
                 type: array
+              dataStream:
+                description: Array of wildcard expressions used to match the names
+                  of indices during creation
+                properties:
+                  timestamp_field:
+                    properties:
+                      name:
+                        type: string
+                    required:
+                    - name
+                    type: object
+                type: object
               indexPatterns:
                 description: Array of wildcard expressions used to match the names
                   of indices during creation

opensearch-operator/opensearch-gateway/requests/Templates.go

@@ -4,6 +4,7 @@ import apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1
 
 type IndexTemplate struct {
 	IndexPatterns []string              `json:"index_patterns"`
+	DataStream    *Datastream           `json:"data_stream,omitempty"`
 	Template      Index                 `json:"template,omitempty"`
 	ComposedOf    []string              `json:"composed_of,omitempty"`
 	Priority      int                   `json:"priority,omitempty"`
@@ -24,6 +25,14 @@ type Index struct {
 	Aliases  map[string]IndexAlias `json:"aliases,omitempty"`
 }
 
+type DatastreamTimestampFieldSpec struct {
+	Name string `json:"name"`
+}
+
+type Datastream struct {
+	TimestampField *DatastreamTimestampFieldSpec `json:"timestamp_field,omitempty"`
+}
+
 type IndexAlias struct {
 	Index        string                `json:"index,omitempty"`
 	Alias        string                `json:"alias,omitempty"`

opensearch-operator/pkg/helpers/translate.go

@@ -9,6 +9,7 @@ import (
 func TranslateIndexTemplateToRequest(spec v1.OpensearchIndexTemplateSpec) requests.IndexTemplate {
 	request := requests.IndexTemplate{
 		IndexPatterns: spec.IndexPatterns,
+		DataStream:    TranslateDatastreamToRequest(spec.DataStream),
 		Template:      TranslateIndexToRequest(spec.Template),
 		Priority:      spec.Priority,
 		Version:       spec.Version,
@@ -37,6 +38,18 @@ func TranslateComponentTemplateToRequest(spec v1.OpensearchComponentTemplateSpec
 	return request
 }
 
+func TranslateDatastreamToRequest(spec *v1.OpensearchDatastreamSpec) *requests.Datastream {
+	if spec == nil {
+		return nil
+	}
+	request := requests.Datastream{}
+	if spec.TimestampField.Name != "" {
+		request.TimestampField = &requests.DatastreamTimestampFieldSpec{Name: spec.TimestampField.Name}
+	}
+
+	return &request
+}
+
 // TranslateIndexToRequest rewrites the CRD format to the gateway format
 func TranslateIndexToRequest(spec v1.OpensearchIndexSpec) requests.Index {
 	aliases := make(map[string]requests.IndexAlias)