draft up a way to translate otel loki receiver to flow #6782
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| package otelcolconvert | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| "github.com/grafana/agent/internal/component/common/loki" | ||
| "github.com/grafana/agent/internal/component/loki/source/api" | ||
| "github.com/grafana/agent/internal/component/otelcol" | ||
| otel_loki "github.com/grafana/agent/internal/component/otelcol/receiver/loki" | ||
| "github.com/grafana/agent/internal/converter/diag" | ||
| "github.com/grafana/agent/internal/converter/internal/common" | ||
| "github.com/grafana/agent/internal/converter/internal/promtailconvert/build" | ||
| "github.com/grafana/dskit/server" | ||
| "github.com/grafana/loki/clients/pkg/promtail/scrapeconfig" | ||
| "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/lokireceiver" | ||
| "go.opentelemetry.io/collector/component" | ||
| ) | ||
|
|
||
| func init() { | ||
| converters = append(converters, lokiReceiverConverter{}) | ||
| } | ||
|
|
||
| type lokiReceiverConverter struct{} | ||
|
|
||
| func (lokiReceiverConverter) Factory() component.Factory { return lokireceiver.NewFactory() } | ||
|
|
||
| func (lokiReceiverConverter) InputComponentName() string { return "" } | ||
|
|
||
| func (lokiReceiverConverter) ConvertAndAppend(state *State, id component.InstanceID, cfg component.Config) diag.Diagnostics { | ||
| var diags diag.Diagnostics | ||
|
|
||
| label := state.FlowComponentLabel() | ||
|
|
||
| otelArgs := toOtelcolReceiverLoki(state, id) | ||
| otelBlock := common.NewBlockWithOverride([]string{"otelcol", "receiver", "loki"}, label, otelArgs) | ||
|
|
||
| logsReceivers := []loki.LogsReceiver{common.ConvertLogsReceiver{ | ||
| Expr: StringifyBlock(otelBlock) + ".receiver", | ||
| }} | ||
| apiArgs := toLokiSourceApi(logsReceivers, cfg.(*lokireceiver.Config)) | ||
| apiBlock := common.NewBlockWithOverride([]string{"loki", "source", "api"}, label, apiArgs) | ||
|
|
||
| diags.Add( | ||
| diag.SeverityLevelInfo, | ||
| fmt.Sprintf("Converted %s into %s", StringifyInstanceID(id), StringifyBlock(otelBlock)), | ||
| ) | ||
|
|
||
| diags.Add( | ||
| diag.SeverityLevelInfo, | ||
| fmt.Sprintf("Converted %s into %s", StringifyInstanceID(id), StringifyBlock(apiBlock)), | ||
| ) | ||
|
|
||
| // Do this at the end in reverse order so the pipeline looks a little better | ||
| state.Body().AppendBlock(apiBlock) | ||
| state.Body().AppendBlock(otelBlock) | ||
| return diags | ||
| } | ||
|
|
||
| func toOtelcolReceiverLoki(state *State, id component.InstanceID) *otel_loki.Arguments { | ||
| var ( | ||
| nextLogs = state.Next(id, component.DataTypeLogs) | ||
| ) | ||
|
|
||
| return &otel_loki.Arguments{ | ||
| Output: &otelcol.ConsumerArguments{ | ||
| Logs: ToTokenizedConsumers(nextLogs), | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| func toLokiSourceApi(logsReceivers []loki.LogsReceiver, cfg *lokireceiver.Config) *api.Arguments { | ||
| ptc := &scrapeconfig.PushTargetConfig{ | ||
| Server: toServer(&cfg.Protocols), | ||
| Labels: nil, | ||
| KeepTimestamp: cfg.KeepTimestamp, | ||
| } | ||
|
|
||
| args := build.ToLokiApiArguments(ptc, logsReceivers) | ||
| return &args | ||
| } | ||
|
|
||
| func toServer(cfg *lokireceiver.Protocols) server.Config { | ||
| return server.Config{ | ||
|
There was a problem hiding this comment. Lots to figure out here with how to convert the server |
||
| HTTPListenAddress: "", | ||
| HTTPListenPort: 0, | ||
| HTTPConnLimit: 0, | ||
| HTTPServerReadTimeout: 0, | ||
| HTTPServerWriteTimeout: 0, | ||
| HTTPServerIdleTimeout: 0, | ||
| GRPCListenAddress: "", | ||
|
There was a problem hiding this comment. otel supports GRPC for their receiver and while ours has them wired up as flow arguments it is not supported. I created a new issue to add this support here: https://github.com/grafana/agent/issues/6783 |
||
| GRPCListenPort: 0, | ||
| GRPCConnLimit: 0, | ||
| GRPCServerMaxConnectionAge: 0, | ||
| GRPCServerMaxConnectionAgeGrace: 0, | ||
| GRPCServerMaxRecvMsgSize: 0, | ||
| GRPCServerMaxSendMsgSize: 0, | ||
| GRPCServerMaxConcurrentStreams: uint(cfg.GRPC.MaxConcurrentStreams), | ||
| GRPCServerMaxConnectionIdle: 0, | ||
| ServerGracefulShutdownTimeout: cfg.GRPC.NetAddr.DialerConfig.Timeout, | ||
|
|
||
| // PROMTAIL CONVERTER IGNORES ALL OF THESE | ||
| // | ||
| // HTTPListenNetwork: "", | ||
| // HTTPServerReadHeaderTimeout: 0, | ||
| // GRPCListenNetwork: "", | ||
| // CipherSuites: "", | ||
| // MinVersion: "", | ||
| // HTTPTLSConfig: server.TLSConfig{}, | ||
| // GRPCTLSConfig: server.TLSConfig{}, | ||
| // RegisterInstrumentation: false, | ||
| // ReportGRPCCodesInInstrumentationLabel: false, | ||
| // ReportHTTP4XXCodesInInstrumentationLabel: false, | ||
| // ExcludeRequestInLog: false, | ||
| // DisableRequestSuccessLog: false, | ||
| // HTTPLogClosedConnectionsWithoutResponse: false, | ||
| // GRPCOptions: []grpc.ServerOption{}, | ||
| // GRPCMiddleware: []grpc.UnaryServerInterceptor{}, | ||
| // GRPCStreamMiddleware: []grpc.StreamServerInterceptor{}, | ||
| // HTTPMiddleware: []middleware.Interface{}, | ||
| // Router: &mux.Router{}, | ||
| // DoNotAddDefaultHTTPMiddleware: false, | ||
| // RouteHTTPToGRPC: false, | ||
| // GRPCServerTime: 0, | ||
| // GRPCServerTimeout: cfg.GRPC.NetAddr.DialerConfig.Timeout, | ||
| // GRPCServerMinTimeBetweenPings: 0, | ||
| // GRPCServerPingWithoutStreamAllowed: false, | ||
| // GRPCServerNumWorkers: 0, | ||
| // LogFormat: "", | ||
| // LogLevel: log.Level{}, | ||
| // Log: nil, | ||
| // LogSourceIPs: false, | ||
| // LogSourceIPsHeader: "", | ||
| // LogSourceIPsRegex: "", | ||
| // LogRequestHeaders: false, | ||
| // LogRequestAtInfoLevel: false, | ||
| // LogRequestExcludeHeadersList: "", | ||
| // SignalHandler: nil, | ||
| // Registerer: nil, | ||
| // Gatherer: nil, | ||
| // PathPrefix: "", | ||
| // GrpcMethodLimiter: nil, | ||
| } | ||
| } | ||
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| loki.source.api "default" { | ||
| http { } | ||
|
|
||
| grpc { } | ||
| graceful_shutdown_timeout = "10s" | ||
| forward_to = [otelcol.receiver.loki.default.receiver] | ||
| labels = {} | ||
| relabel_rules = null | ||
| use_incoming_timestamp = true | ||
| } | ||
|
|
||
| otelcol.receiver.loki "default" { | ||
| output { | ||
| logs = [otelcol.exporter.otlp.default.input] | ||
| } | ||
| } | ||
|
|
||
| otelcol.exporter.otlp "default" { | ||
| client { | ||
| endpoint = "database:4317" | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| receivers: | ||
| loki: | ||
| protocols: | ||
| http: | ||
| endpoint: 0.0.0.0:3500 | ||
| grpc: | ||
| endpoint: 0.0.0.0:3600 | ||
| dialer: | ||
| timeout: 10s | ||
| use_incoming_timestamp: true | ||
|
|
||
| exporters: | ||
| otlp: | ||
| endpoint: database:4317 | ||
|
|
||
| service: | ||
| pipelines: | ||
| logs: | ||
| receivers: [loki] | ||
| processors: [] | ||
| exporters: [otlp] |
File renamed without changes.
File renamed without changes.
File renamed without changes.
File renamed without changes.
File renamed without changes.
File renamed without changes.
File renamed without changes.
File renamed without changes.
File renamed without changes.
File renamed without changes.
File renamed without changes.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
File renamed without changes.
File renamed without changes.
File renamed without changes.
File renamed without changes.
File renamed without changes.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Promtail converter code does not use the common utils for this so we need to add code here