API: Extract OpenAPI specification from source code using go-swagger (#40528)

* API: Using go-swagger for extracting OpenAPI specification from source code

* Merge Grafana Alerting spec

* Include enterprise endpoints (if enabled)

* Serve SwaggerUI under feature flag

* Fix building dev docker images

* Configure swaggerUI

* Add missing json tags

Co-authored-by: Ying WANG <ying.wang@grafana.com>
Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>

pkg/models/datasource.go

@@ -92,7 +92,7 @@ type AddDataSourceCommand struct {
 	ReadOnly                bool              `json:"-"`
 	EncryptedSecureJsonData map[string][]byte `json:"-"`
 
-	Result *DataSource
+	Result *DataSource `json:"-"`
 }
 
 // Also acts as api DTO
@@ -119,7 +119,7 @@ type UpdateDataSourceCommand struct {
 	ReadOnly                bool              `json:"-"`
 	EncryptedSecureJsonData map[string][]byte `json:"-"`
 
-	Result *DataSource
+	Result *DataSource `json:"-"`
 }
 
 // DeleteDataSourceCommand will delete a DataSource based on OrgID as well as the UID (preferred), ID, or Name.
@@ -171,6 +171,12 @@ type GetDataSourceQuery struct {
 //  Permissions
 // ---------------------
 
+// Datasource permission
+// Description:
+// * `0` - No Access
+// * `1` - Query
+// Enum: 0,1
+// swagger:model
 type DsPermissionType int
 
 const (