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feat(backend/grpc-connect): kafka connect
Implement grcp connect for the kafka-connect service, add mapper for transforming the kafka connect responses into a valid grpc connect responses, errors etc Signed-off-by: Santiago Jimenez Giraldo <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,177 @@ | ||
| // Copyright 2023 Redpanda Data, Inc. | ||
| // | ||
| // Use of this software is governed by the Business Source License | ||
| // included in the file licenses/BSL.md | ||
| // | ||
| // As of the Change Date specified in that file, in accordance with | ||
| // the Business Source License, use of this software will be governed | ||
| // by the Apache License, Version 2.0 | ||
|
|
||
| // Package kafkaconnect implements the KafkaConnect interface for the Connect API. | ||
| package kafkaconnect | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
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| con "github.com/cloudhut/connect-client" | ||
| "golang.org/x/exp/slices" | ||
|
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| kafkaconnect "github.com/redpanda-data/console/backend/pkg/connect" | ||
| dataplanev1alpha1 "github.com/redpanda-data/console/backend/pkg/protogen/redpanda/api/dataplane/v1alpha1" | ||
| ) | ||
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| type mapper struct{} | ||
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| func (m mapper) connectorsHTTPResponseToProto(httpResponse kafkaconnect.ClusterConnectors, request *dataplanev1alpha1.ListConnectorsRequest) (*dataplanev1alpha1.ListConnectorsResponse, error) { | ||
| connectors := make(map[string]*dataplanev1alpha1.ListConnectorsResponse_ConnectorInfoStatus, len(httpResponse.Connectors)) | ||
|
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| for _, connector := range httpResponse.Connectors { | ||
| errors, err := m.connectorErrorsToProto(connector.Errors) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to map connector error to proto for connector %q: %w", connector.Name, err) | ||
| } | ||
|
|
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| connectors[connector.Name] = &dataplanev1alpha1.ListConnectorsResponse_ConnectorInfoStatus{ | ||
| HolisticState: m.holisticStateToProto(connector.Status), | ||
| Errors: errors, | ||
| } | ||
|
|
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| if slices.Contains(request.Expand, "info") { | ||
| connectors[connector.Name].Info = &dataplanev1alpha1.ConnectorSpec{ | ||
| Name: connector.Name, | ||
| Type: connector.Type, | ||
| Config: connector.Config, | ||
| Tasks: m.taskInfoListToProtoInfo(connector.Name, connector.Tasks), | ||
| } | ||
| } | ||
|
|
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| if slices.Contains(request.Expand, "status") { | ||
| connectors[connector.Name].Status = &dataplanev1alpha1.ConnectorStatus{ | ||
| Name: connector.Name, | ||
| Connector: &dataplanev1alpha1.ConnectorStatus_Connector{ | ||
| State: connector.State, | ||
| WorkerId: connector.WorkerID, | ||
| }, | ||
| Tasks: m.taskInfoListToProtoStatus(connector.Tasks), | ||
| Type: connector.Type, | ||
| Trace: connector.Trace, | ||
| } | ||
| } | ||
| } | ||
|
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| return &dataplanev1alpha1.ListConnectorsResponse{ | ||
| Connectors: connectors, | ||
| ClusterAddress: httpResponse.ClusterAddress, | ||
| ClusterName: httpResponse.ClusterName, | ||
| }, nil | ||
| } | ||
|
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| func (m mapper) taskInfoListToProtoInfo(connectorName string, taskInfoList []kafkaconnect.ClusterConnectorTaskInfo) []*dataplanev1alpha1.TaskInfo { | ||
| tasks := make([]*dataplanev1alpha1.TaskInfo, len(taskInfoList)) | ||
| for i, task := range taskInfoList { | ||
| tasks[i] = m.taskToProto(connectorName, task.TaskID) | ||
| } | ||
| return tasks | ||
| } | ||
|
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| func (m mapper) connectorTaskIDToProto(connectorName string, taskInfoList []con.ConnectorTaskID) []*dataplanev1alpha1.TaskInfo { | ||
| tasks := make([]*dataplanev1alpha1.TaskInfo, len(taskInfoList)) | ||
| for i, task := range taskInfoList { | ||
| tasks[i] = m.taskToProto(connectorName, task.Task) | ||
| } | ||
| return tasks | ||
| } | ||
|
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| func (mapper) taskToProto(name string, taskID int) *dataplanev1alpha1.TaskInfo { | ||
| return &dataplanev1alpha1.TaskInfo{ | ||
| Connector: name, | ||
| Task: int32(taskID), | ||
| } | ||
| } | ||
|
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| func (mapper) taskInfoListToProtoStatus(taskInfoList []kafkaconnect.ClusterConnectorTaskInfo) []*dataplanev1alpha1.TaskStatus { | ||
| tasks := make([]*dataplanev1alpha1.TaskStatus, len(taskInfoList)) | ||
| for i, task := range taskInfoList { | ||
| tasks[i] = &dataplanev1alpha1.TaskStatus{ | ||
| Id: int32(task.TaskID), | ||
| State: task.State, | ||
| WorkerId: task.WorkerID, | ||
| Trace: task.Trace, | ||
| } | ||
| } | ||
| return tasks | ||
| } | ||
|
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| func (mapper) holisticStateToProto(state string) dataplanev1alpha1.HolisticState { | ||
| switch state { | ||
| case kafkaconnect.ConnectorStatusPaused: | ||
| return dataplanev1alpha1.HolisticState_HOLISTIC_STATE_PAUSED | ||
| case kafkaconnect.ConnectorStatusStopped: | ||
| return dataplanev1alpha1.HolisticState_HOLISTIC_STATE_STOPPED | ||
| case kafkaconnect.ConnectorStatusRestarting: | ||
| return dataplanev1alpha1.HolisticState_HOLISTIC_STATE_RESTARTING | ||
| case kafkaconnect.ConnectorStatusDestroyed: | ||
| return dataplanev1alpha1.HolisticState_HOLISTIC_STATE_DESTROYED | ||
| case kafkaconnect.ConnectorStatusUnassigned: | ||
| return dataplanev1alpha1.HolisticState_HOLISTIC_STATE_UNASSIGNED | ||
| case kafkaconnect.ConnectorStatusHealthy: | ||
| return dataplanev1alpha1.HolisticState_HOLISTIC_STATE_HEALTHY | ||
| case kafkaconnect.ConnectorStatusUnhealthy: | ||
| return dataplanev1alpha1.HolisticState_HOLISTIC_STATE_UNHEALTHY | ||
| case kafkaconnect.ConnectorStatusDegraded: | ||
| return dataplanev1alpha1.HolisticState_HOLISTIC_STATE_DEGRADED | ||
| default: | ||
| return dataplanev1alpha1.HolisticState_HOLISTIC_STATE_UNKNOWN | ||
| } | ||
| } | ||
|
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| func (m mapper) connectorErrorsToProto(errorInfoList []kafkaconnect.ClusterConnectorInfoError) ([]*dataplanev1alpha1.ConnectorError, error) { | ||
| connectErrors := make([]*dataplanev1alpha1.ConnectorError, len(errorInfoList)) | ||
| for i, errorInfoItem := range errorInfoList { | ||
| errorType, err := m.connectorErrorTypeToProto(errorInfoItem.Type) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| connectErrors[i] = &dataplanev1alpha1.ConnectorError{ | ||
| Title: errorInfoItem.Title, | ||
| Content: errorInfoItem.Content, | ||
| Type: errorType, | ||
| } | ||
| } | ||
| return connectErrors, nil | ||
| } | ||
|
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| func (mapper) connectorErrorTypeToProto(errorType string) (dataplanev1alpha1.ConnectorError_Type, error) { | ||
| switch errorType { | ||
| case "ERROR": | ||
| return dataplanev1alpha1.ConnectorError_TYPE_ERROR, nil | ||
| case "WARNING": | ||
| return dataplanev1alpha1.ConnectorError_TYPE_WARNING, nil | ||
| default: | ||
| return dataplanev1alpha1.ConnectorError_TYPE_UNSPECIFIED, fmt.Errorf("failed to map given error type %q to proto", errorType) | ||
| } | ||
| } | ||
|
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| func (mapper) createConnectorProtoToClientRequest(createConnector *dataplanev1alpha1.CreateConnectorRequest) (*con.CreateConnectorRequest, error) { | ||
| if createConnector == nil || createConnector.Connector == nil { | ||
| return nil, fmt.Errorf("create connector request is nil") | ||
| } | ||
|
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| if len(createConnector.Connector.Config) == 0 { | ||
| return nil, fmt.Errorf("create connector request config is empty") | ||
| } | ||
|
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| return &con.CreateConnectorRequest{ | ||
| Name: createConnector.Connector.Name, | ||
| Config: convertStringMapToInterfaceMap(createConnector.Connector.Config), | ||
| }, nil | ||
| } | ||
|
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| // convertStringMapToInterfaceMap converts interface map to string map | ||
| func convertStringMapToInterfaceMap(stringMap map[string]string) map[string]interface{} { | ||
| interfaceMap := make(map[string]interface{}, len(stringMap)) | ||
| for key, value := range stringMap { | ||
| interfaceMap[key] = value | ||
| } | ||
| return interfaceMap | ||
| } |
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