feat(global): multi endpoint management (#407)

api/bolt/endpoint_service.go

@@ -0,0 +1,162 @@
+package bolt
+
+import (
+	"github.com/portainer/portainer"
+	"github.com/portainer/portainer/bolt/internal"
+
+	"github.com/boltdb/bolt"
+)
+
+// EndpointService represents a service for managing users.
+type EndpointService struct {
+	store *Store
+}
+
+const (
+	activeEndpointID = 0
+)
+
+// Endpoint returns an endpoint by ID.
+func (service *EndpointService) Endpoint(ID portainer.EndpointID) (*portainer.Endpoint, error) {
+	var data []byte
+	err := service.store.db.View(func(tx *bolt.Tx) error {
+		bucket := tx.Bucket([]byte(endpointBucketName))
+		value := bucket.Get(internal.Itob(int(ID)))
+		if value == nil {
+			return portainer.ErrEndpointNotFound
+		}
+
+		data = make([]byte, len(value))
+		copy(data, value)
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	var endpoint portainer.Endpoint
+	err = internal.UnmarshalEndpoint(data, &endpoint)
+	if err != nil {
+		return nil, err
+	}
+	return &endpoint, nil
+}
+
+// Endpoints return an array containing all the endpoints.
+func (service *EndpointService) Endpoints() ([]portainer.Endpoint, error) {
+	var endpoints []portainer.Endpoint
+	err := service.store.db.View(func(tx *bolt.Tx) error {
+		bucket := tx.Bucket([]byte(endpointBucketName))
+
+		cursor := bucket.Cursor()
+		for k, v := cursor.First(); k != nil; k, v = cursor.Next() {
+			var endpoint portainer.Endpoint
+			err := internal.UnmarshalEndpoint(v, &endpoint)
+			if err != nil {
+				return err
+			}
+			endpoints = append(endpoints, endpoint)
+		}
+
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return endpoints, nil
+}
+
+// CreateEndpoint assign an ID to a new endpoint and saves it.
+func (service *EndpointService) CreateEndpoint(endpoint *portainer.Endpoint) error {
+	return service.store.db.Update(func(tx *bolt.Tx) error {
+		bucket := tx.Bucket([]byte(endpointBucketName))
+
+		id, _ := bucket.NextSequence()
+		endpoint.ID = portainer.EndpointID(id)
+
+		data, err := internal.MarshalEndpoint(endpoint)
+		if err != nil {
+			return err
+		}
+
+		err = bucket.Put(internal.Itob(int(endpoint.ID)), data)
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+// UpdateEndpoint updates an endpoint.
+func (service *EndpointService) UpdateEndpoint(ID portainer.EndpointID, endpoint *portainer.Endpoint) error {
+	data, err := internal.MarshalEndpoint(endpoint)
+	if err != nil {
+		return err
+	}
+
+	return service.store.db.Update(func(tx *bolt.Tx) error {
+		bucket := tx.Bucket([]byte(endpointBucketName))
+		err = bucket.Put(internal.Itob(int(ID)), data)
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+// DeleteEndpoint deletes an endpoint.
+func (service *EndpointService) DeleteEndpoint(ID portainer.EndpointID) error {
+	return service.store.db.Update(func(tx *bolt.Tx) error {
+		bucket := tx.Bucket([]byte(endpointBucketName))
+		err := bucket.Delete(internal.Itob(int(ID)))
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+// GetActive returns the active endpoint.
+func (service *EndpointService) GetActive() (*portainer.Endpoint, error) {
+	var data []byte
+	err := service.store.db.View(func(tx *bolt.Tx) error {
+		bucket := tx.Bucket([]byte(activeEndpointBucketName))
+		value := bucket.Get(internal.Itob(activeEndpointID))
+		if value == nil {
+			return portainer.ErrEndpointNotFound
+		}
+
+		data = make([]byte, len(value))
+		copy(data, value)
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	var endpoint portainer.Endpoint
+	err = internal.UnmarshalEndpoint(data, &endpoint)
+	if err != nil {
+		return nil, err
+	}
+	return &endpoint, nil
+}
+
+// SetActive saves an endpoint as active.
+func (service *EndpointService) SetActive(endpoint *portainer.Endpoint) error {
+	return service.store.db.Update(func(tx *bolt.Tx) error {
+		bucket := tx.Bucket([]byte(activeEndpointBucketName))
+
+		data, err := internal.MarshalEndpoint(endpoint)
+		if err != nil {
+			return err
+		}
+
+		err = bucket.Put(internal.Itob(activeEndpointID), data)
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+}