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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| // Copyright Aeraki Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package metaprotocol | ||
|
|
||
| import ( | ||
| "google.golang.org/protobuf/types/known/structpb" | ||
| "istio.io/istio/pkg/util/protomarshal" | ||
| "istio.io/pkg/log" | ||
|
|
||
| accesslog "github.com/envoyproxy/go-control-plane/envoy/config/accesslog/v3" | ||
| envoyconfig "github.com/envoyproxy/go-control-plane/envoy/config/core/v3" | ||
| fileaccesslog "github.com/envoyproxy/go-control-plane/envoy/extensions/access_loggers/file/v3" | ||
| "github.com/envoyproxy/go-control-plane/pkg/wellknown" | ||
| meshconfig "istio.io/api/mesh/v1alpha1" | ||
| "istio.io/istio/pilot/pkg/networking/util" | ||
| ) | ||
|
|
||
| const ( | ||
| envoyTextLogFormat = "[%START_TIME%] %REQ(X-META-PROTOCOL-APPLICATION-PROTOCOL)% " + | ||
| "%RESPONSE_CODE% %RESPONSE_CODE_DETAILS% %CONNECTION_TERMINATION_DETAILS% " + | ||
| "\"%UPSTREAM_TRANSPORT_FAILURE_REASON%\" %BYTES_RECEIVED% %BYTES_SENT% " + | ||
| "%DURATION% \"%REQ(X-FORWARDED-FOR)%\" \"%REQ(X-REQUEST-ID)%\" " + | ||
| "%UPSTREAM_CLUSTER% %UPSTREAM_LOCAL_ADDRESS% %DOWNSTREAM_LOCAL_ADDRESS% " + | ||
| "%DOWNSTREAM_REMOTE_ADDRESS% %ROUTE_NAME%\n" | ||
| ) | ||
|
|
||
| // nolint: lll | ||
| var ( | ||
| envoyJSONLogFormatIstio = &structpb.Struct{ | ||
| Fields: map[string]*structpb.Value{ | ||
| "start_time": {Kind: &structpb.Value_StringValue{StringValue: "%START_TIME%"}}, | ||
| "route_name": {Kind: &structpb.Value_StringValue{StringValue: "%ROUTE_NAME%"}}, | ||
| "application_protocol": {Kind: &structpb.Value_StringValue{StringValue: "%REQ(X-META-PROTOCOL-APPLICATION-PROTOCOL)%"}}, | ||
| "response_code": {Kind: &structpb.Value_StringValue{StringValue: "%RESPONSE_CODE%"}}, | ||
| "response_code_details": {Kind: &structpb.Value_StringValue{StringValue: "%RESPONSE_CODE_DETAILS%"}}, | ||
| "connection_termination_details": {Kind: &structpb.Value_StringValue{StringValue: "%CONNECTION_TERMINATION_DETAILS%"}}, | ||
| "bytes_received": {Kind: &structpb.Value_StringValue{StringValue: "%BYTES_RECEIVED%"}}, | ||
| "bytes_sent": {Kind: &structpb.Value_StringValue{StringValue: "%BYTES_SENT%"}}, | ||
| "duration": {Kind: &structpb.Value_StringValue{StringValue: "%DURATION%"}}, | ||
| "request_id": {Kind: &structpb.Value_StringValue{StringValue: "%REQ(X-REQUEST-ID)%"}}, | ||
| "upstream_cluster": {Kind: &structpb.Value_StringValue{StringValue: "%UPSTREAM_CLUSTER%"}}, | ||
| "upstream_local_address": {Kind: &structpb.Value_StringValue{StringValue: "%UPSTREAM_LOCAL_ADDRESS%"}}, | ||
| "downstream_local_address": {Kind: &structpb.Value_StringValue{StringValue: "%DOWNSTREAM_LOCAL_ADDRESS%"}}, | ||
| "downstream_remote_address": {Kind: &structpb.Value_StringValue{StringValue: "%DOWNSTREAM_REMOTE_ADDRESS%"}}, | ||
| "upstream_transport_failure_reason": {Kind: &structpb.Value_StringValue{StringValue: "%UPSTREAM_TRANSPORT_FAILURE_REASON%"}}, | ||
| }, | ||
| } | ||
| ) | ||
|
|
||
| func buildFileAccessLogHelper(path string, mesh *meshconfig.MeshConfig) *accesslog.AccessLog { | ||
| // We need to build access log. This is needed either on first access or when mesh config changes. | ||
| fl := &fileaccesslog.FileAccessLog{ | ||
| Path: path, | ||
| } | ||
|
|
||
| switch mesh.AccessLogEncoding { | ||
| case meshconfig.MeshConfig_TEXT: | ||
| formatString := envoyTextLogFormat | ||
| if mesh.AccessLogFormat != "" { | ||
| formatString = mesh.AccessLogFormat | ||
| } | ||
| fl.AccessLogFormat = &fileaccesslog.FileAccessLog_LogFormat{ | ||
| LogFormat: &envoyconfig.SubstitutionFormatString{ | ||
| Format: &envoyconfig.SubstitutionFormatString_TextFormatSource{ | ||
| TextFormatSource: &envoyconfig.DataSource{ | ||
| Specifier: &envoyconfig.DataSource_InlineString{ | ||
| InlineString: formatString, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| case meshconfig.MeshConfig_JSON: | ||
| jsonLogStruct := envoyJSONLogFormatIstio | ||
| if len(mesh.AccessLogFormat) > 0 { | ||
| parsedJSONLogStruct := structpb.Struct{} | ||
| if err := protomarshal.UnmarshalAllowUnknown([]byte(mesh.AccessLogFormat), &parsedJSONLogStruct); err != nil { | ||
| log.Errorf("error parsing provided json log format, default log format will be used: %v", err) | ||
| } else { | ||
| jsonLogStruct = &parsedJSONLogStruct | ||
| } | ||
| } | ||
| fl.AccessLogFormat = &fileaccesslog.FileAccessLog_LogFormat{ | ||
| LogFormat: &envoyconfig.SubstitutionFormatString{ | ||
| Format: &envoyconfig.SubstitutionFormatString_JsonFormat{ | ||
| JsonFormat: jsonLogStruct, | ||
| }, | ||
| }, | ||
| } | ||
| default: | ||
| log.Warnf("unsupported access log format %v", mesh.AccessLogEncoding) | ||
| } | ||
|
|
||
| al := &accesslog.AccessLog{ | ||
| Name: wellknown.FileAccessLog, | ||
| ConfigType: &accesslog.AccessLog_TypedConfig{TypedConfig: util.MessageToAny(fl)}, | ||
| } | ||
|
|
||
| return al | ||
| } |
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