feat: add pgvector as vectorstore

Signed-off-by: Abirdcfly <fp544037857@gmail.com>

.github/workflows/example_test.yaml

@@ -39,6 +39,7 @@ jobs:
         # see https://github.com/actions/runner/issues/662
         if: steps.cache.outputs.cache-hit != 'true'
       - name: Setup Golang
+        if: steps.cache.outputs.cache-hit != 'true'
         uses: actions/setup-go@v5
         with:
           go-version-file: 'go.mod'

api/base/v1alpha1/common.go

@@ -183,28 +183,36 @@ type CommonSpec struct {
 	Description string `json:"description,omitempty"`
 }
 
-func (endpoint Endpoint) AuthAPIKey(ctx context.Context, ns string, c client.Client, cli dynamic.Interface) (string, error) {
+func (endpoint Endpoint) AuthData(ctx context.Context, ns string, c client.Client, cli dynamic.Interface) (map[string][]byte, error) {
 	if endpoint.AuthSecret == nil {
-		return "", nil
+		return nil, nil
 	}
 	if err := utils.ValidateClient(c, cli); err != nil {
-		return "", err
+		return nil, err
 	}
 	authSecret := &corev1.Secret{}
 	if c != nil {
 		if err := c.Get(ctx, types.NamespacedName{Name: endpoint.AuthSecret.Name, Namespace: endpoint.AuthSecret.GetNamespace(ns)}, authSecret); err != nil {
-			return "", err
+			return nil, err
 		}
 	} else {
 		obj, err := cli.Resource(schema.GroupVersionResource{Group: "", Version: "v1", Resource: "secrets"}).
 			Namespace(endpoint.AuthSecret.GetNamespace(ns)).Get(ctx, endpoint.AuthSecret.Name, metav1.GetOptions{})
 		if err != nil {
-			return "", err
+			return nil, err
 		}
 		err = runtime.DefaultUnstructuredConverter.FromUnstructured(obj.UnstructuredContent(), authSecret)
 		if err != nil {
-			return "", err
+			return nil, err
 		}
 	}
-	return string(authSecret.Data["apiKey"]), nil
+	return authSecret.Data, nil
+}
+
+func (endpoint Endpoint) AuthAPIKey(ctx context.Context, ns string, c client.Client, cli dynamic.Interface) (string, error) {
+	data, err := endpoint.AuthData(ctx, ns, c, cli)
+	if err != nil {
+		return "", err
+	}
+	return string(data["apiKey"]), nil
 }

api/base/v1alpha1/vectorstore.go

@@ -28,20 +28,20 @@ const (
 type VectorStoreType string
 
 const (
-	VectorStoreTypeChroma  VectorStoreType = "chroma"
-	VectorStoreTypeUnknown VectorStoreType = "unknown"
+	VectorStoreTypeChroma   VectorStoreType = "chroma"
+	VectorStoreTypePGVector VectorStoreType = "pgvector"
+	VectorStoreTypeUnknown  VectorStoreType = "unknown"
 )
 
 func (vs VectorStoreSpec) Type() VectorStoreType {
-	if vs.Endpoint == nil {
-		return VectorStoreTypeUnknown
-	}
-
-	if vs.Chroma != nil {
+	switch {
+	case vs.Chroma != nil:
 		return VectorStoreTypeChroma
+	case vs.PGVector != nil:
+		return VectorStoreTypePGVector
+	default:
+		return VectorStoreTypeUnknown
 	}
-
-	return VectorStoreTypeUnknown
 }
 
 func (vs *VectorStore) InitCondition() Condition {

api/base/v1alpha1/vectorstore_types.go

@@ -29,13 +29,28 @@ type VectorStoreSpec struct {
 	Endpoint *Endpoint `json:"endpoint,omitempty"`
 
 	Chroma *Chroma `json:"chroma,omitempty"`
+
+	PGVector *PGVector `json:"pgvector,omitempty"`
 }
 
 // Chroma defines the configuration of Chroma
 type Chroma struct {
 	DistanceFunction chromago.DistanceFunction `json:"distanceFunction,omitempty"`
 }
 
+type PGVector struct {
+	// PreDeleteCollection defines if the collection should be deleted before creating.
+	PreDeleteCollection bool `json:"preDeleteCollection,omitempty"`
+	// CollectionName defines the name of the collection
+	CollectionName string `json:"collectionName,omitempty"`
+	// EmbeddingTableName defines the name of the embedding table. if empty, use `langchain_pg_embedding`
+	EmbeddingTableName string `json:"embeddingTableName,omitempty"`
+	// CollectionTableName defines the name of the collection table. if empty, use `langchain_pg_collection`
+	CollectionTableName string `json:"collectionTableName,omitempty"`
+	// DataSourceRef defines the reference of the data source
+	DataSourceRef *TypedObjectReference `json:"dataSourceRef,omitempty"`
+}
+
 // VectorStoreStatus defines the observed state of VectorStore
 type VectorStoreStatus struct {
 	// ConditionedStatus is the current status

config/crd/bases/arcadia.kubeagi.k8s.com.cn_vectorstores.yaml

@@ -93,6 +93,47 @@ spec:
                     description: URL for this endpoint
                     type: string
                 type: object
+              pgvector:
+                properties:
+                  collectionName:
+                    description: CollectionName defines the name of the collection
+                    type: string
+                  collectionTableName:
+                    description: CollectionTableName defines the name of the collection
+                      table. if empty, use `langchain_pg_collection`
+                    type: string
+                  dataSourceRef:
+                    description: DataSourceRef defines the reference of the data source
+                    properties:
+                      apiGroup:
+                        description: APIGroup is the group for the resource being
+                          referenced. If APIGroup is not specified, the specified
+                          Kind must be in the core API group. For any other third-party
+                          types, APIGroup is required.
+                        type: string
+                      kind:
+                        description: Kind is the type of resource being referenced
+                        type: string
+                      name:
+                        description: Name is the name of resource being referenced
+                        type: string
+                      namespace:
+                        description: Namespace is the namespace of resource being
+                          referenced
+                        type: string
+                    required:
+                    - kind
+                    - name
+                    type: object
+                  embeddingTableName:
+                    description: EmbeddingTableName defines the name of the embedding
+                      table. if empty, use `langchain_pg_embedding`
+                    type: string
+                  preDeleteCollection:
+                    description: PreDeleteCollection defines if the collection should
+                      be deleted before creating.
+                    type: boolean
+                type: object
             type: object
           status:
             description: VectorStoreStatus defines the observed state of VectorStore

config/samples/app_retrievalqachain_knowledgebase_pgvector.yaml

@@ -0,0 +1,63 @@
+apiVersion: arcadia.kubeagi.k8s.com.cn/v1alpha1
+kind: Application
+metadata:
+  name: base-chat-with-knowledgebase-pgvector
+  namespace: arcadia
+spec:
+  displayName: "知识库应用"
+  description: "最简单的和知识库对话的应用"
+  prologue: "Welcome to talk to the KnowledgeBase!🤖"
+  nodes:
+    - name: Input
+      displayName: "用户输入"
+      description: "用户输入节点，必须"
+      ref:
+        kind: Input
+        name: Input
+      nextNodeName: ["prompt-node"]
+    - name: prompt-node
+      displayName: "prompt"
+      description: "设定prompt，template中可以使用{{xx}}来替换变量"
+      ref:
+        apiGroup: prompt.arcadia.kubeagi.k8s.com.cn
+        kind: Prompt
+        name: base-chat-with-knowledgebase
+      nextNodeName: ["chain-node"]
+    - name: llm-node
+      displayName: "zhipu大模型服务"
+      description: "设定大模型的访问信息"
+      ref:
+        apiGroup: arcadia.kubeagi.k8s.com.cn
+        kind: LLM
+        name: app-shared-llm-service
+      nextNodeName: ["chain-node"]
+    - name: knowledgebase-node
+      displayName: "使用的知识库"
+      description: "要用哪个知识库"
+      ref:
+        apiGroup: arcadia.kubeagi.k8s.com.cn
+        kind: KnowledgeBase
+        name: knowledgebase-sample-pgvector
+      nextNodeName: ["retriever-node"]
+    - name: retriever-node
+      displayName: "从知识库提取信息的retriever"
+      description: "连接应用和知识库"
+      ref:
+        apiGroup: retriever.arcadia.kubeagi.k8s.com.cn
+        kind: KnowledgeBaseRetriever
+        name: base-chat-with-knowledgebase
+      nextNodeName: ["chain-node"]
+    - name: chain-node
+      displayName: "RetrievalQA chain"
+      description: "chain是langchain的核心概念，RetrievalQAChain用于从 retriever 中提取信息，供llm调用"
+      ref:
+        apiGroup: chain.arcadia.kubeagi.k8s.com.cn
+        kind: RetrievalQAChain
+        name: base-chat-with-knowledgebase
+      nextNodeName: ["Output"]
+    - name: Output
+      displayName: "最终输出"
+      description: "最终输出节点，必须"
+      ref:
+        kind: Output
+        name: Output

config/samples/arcadia_v1alpha1_datasource_postgresql.yaml

@@ -20,5 +20,6 @@ spec:
     authSecret:
       kind: Secret
       name: datasource-postgresql-sample-authsecret
+      namespace: arcadia
   postgresql:
-    PGDATABASE: arcadia
+    PGDATABASE: admin

config/samples/arcadia_v1alpha1_knowledgebase_pgvector.yaml

@@ -0,0 +1,23 @@
+apiVersion: arcadia.kubeagi.k8s.com.cn/v1alpha1
+kind: KnowledgeBase
+metadata:
+  name: knowledgebase-sample-pgvector
+  namespace: arcadia
+spec:
+  displayName: "测试 KnowledgeBase"
+  description: "测试 KnowledgeBase"
+  embedder:
+    kind: Embedders
+    name: zhipuai-embedders-sample
+    namespace: arcadia
+  vectorStore:
+    kind: VectorStores
+    name: pgvector-sample
+    namespace: arcadia
+  fileGroups:
+  - source:
+      kind: VersionedDataset
+      name: dataset-playground-v1
+      namespace: arcadia
+    paths:
+      - qa.csv

config/samples/arcadia_v1alpha1_vectorstore_pgvector.yaml

@@ -0,0 +1,14 @@
+apiVersion: arcadia.kubeagi.k8s.com.cn/v1alpha1
+kind: VectorStore
+metadata:
+  name: pgvector-sample
+  namespace: arcadia
+spec:
+  displayName: "测试 PGVector VectorStore"
+  description: "测试 PGvector VectorStore"
+  pgvector:
+    dataSourceRef:
+      apiGroup: arcadia.kubeagi.k8s.com.cn
+      kind: Datasource
+      name: arcadia-postgresql
+      namespace: arcadia

controllers/datasource_controller.go

@@ -88,7 +88,7 @@ func (r *DatasourceReconciler) Reconcile(ctx context.Context, req ctrl.Request)
 	// indicated by the deletion timestamp being set.
 	if instance.GetDeletionTimestamp() != nil && controllerutil.ContainsFinalizer(instance, arcadiav1alpha1.Finalizer) {
 		logger.Info("Performing Finalizer Operations for Datasource before delete CR")
-		// TODO perform the finalizer operations here, for example: remove data?
+		r.RemoveDatasource(logger, instance)
 		logger.Info("Removing Finalizer for Datasource after successfully performing the operations")
 		controllerutil.RemoveFinalizer(instance, arcadiav1alpha1.Finalizer)
 		if err := r.Update(ctx, instance); err != nil {
@@ -172,7 +172,7 @@ func (r *DatasourceReconciler) Checkdatasource(ctx context.Context, logger logr.
 	case arcadiav1alpha1.DatasourceTypeRDMA:
 		return r.UpdateStatus(ctx, instance, nil)
 	case arcadiav1alpha1.DatasourceTypePostgreSQL:
-		ds, err = datasource.NewPostgreSQL(ctx, r.Client, nil, instance.Spec.PostgreSQL, endpoint)
+		ds, err = datasource.GetPostgreSQLPool(ctx, r.Client, nil, instance)
 		if err != nil {
 			return r.UpdateStatus(ctx, instance, err)
 		}
@@ -219,3 +219,14 @@ func (r *DatasourceReconciler) UpdateStatus(ctx context.Context, instance *arcad
 	instanceCopy.Status.SetConditions(newCondition)
 	return r.Client.Status().Update(ctx, instanceCopy)
 }
+
+func (r *DatasourceReconciler) RemoveDatasource(logger logr.Logger, instance *arcadiav1alpha1.Datasource) {
+	logger.V(5).Info("remove datasource")
+	switch instance.Spec.Type() {
+	case arcadiav1alpha1.DatasourceTypeOSS:
+	case arcadiav1alpha1.DatasourceTypeRDMA:
+	case arcadiav1alpha1.DatasourceTypePostgreSQL:
+		datasource.RemovePostgreSQLPool(*instance)
+	default:
+	}
+}