711f2cc4f2
Commit adds the following changes: * Adds support of OpenTelemetry logs for Victoria Logs with protobuf encoded messages * json encoding is not supported for the following reasons: - It brings a lot of fragile code, which works inefficiently. - json encoding is impossible to use with language SDK. * splits metrics and logs structures at lib/protoparser/opentelemetry/pb package. * adds docs with examples for opentelemetry logs. --- Related issue: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4839 Co-authored-by: AndrewChubatiuk <andrew.chubatiuk@gmail.com> Co-authored-by: f41gh7 <nik@victoriametrics.com>
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VictoriaLogs supports both client open-telemetry SDK and collector.
Client SDK
Specify EndpointURL for http-exporter builder.
Consider the following example for golang SDK:
// Create the OTLP log exporter that sends logs to configured destination
logExporter, err := otlploghttp.New(ctx,
otlploghttp.WithEndpointURL("http://victorialogs:9428/insert/opentelemetry/v1/logs"),
)
Optionally, stream fields could be defined via headers:
// Create the OTLP log exporter that sends logs to configured destination
logExporter, err := otlploghttp.New(ctx,
otlploghttp.WithEndpointURL("http://victorialogs:9428/insert/opentelemetry/v1/logs"),
otlploghttp.WithHeaders(map[string]string{"VL-Stream-Fields": "telemetry.sdk.language,severity"}),
)
Given config defines 2 stream fields - severity and telemetry.sdk.language.
See also HTTP headers
Collector configuration
VictoriaLogs supports given below OpenTelemetry collector exporters:
Elasticsearch
exporters:
elasticsearch:
endpoints:
- http://victorialogs:9428/insert/elasticsearch
receivers:
filelog:
include: [/tmp/logs/*.log]
resource:
region: us-east-1
service:
pipelines:
logs:
receivers: [filelog]
exporters: [elasticsearch]
Loki
exporters:
loki:
endpoint: http://victorialogs:9428/insert/loki/api/v1/push
receivers:
filelog:
include: [/tmp/logs/*.log]
resource:
region: us-east-1
service:
pipelines:
logs:
receivers: [filelog]
exporters: [loki]
OpenTelemetry
Specify logs endpoint for OTLP/HTTP exporter in configuration file for sending the collected logs to VictoriaLogs:
exporters:
otlphttp:
logs_endpoint: http://localhost:9428/insert/opentelemetry/v1/logs
Optionally, stream fields could be defined via headers:
exporters:
otlphttp:
logs_endpoint: http://localhost:9428/insert/opentelemetry/v1/logs
headers:
VL-Stream-Fields: telemetry.sdk.language,severity
See also HTTP headers
Substitute localhost:9428 address inside exporters.oltphttp.logs_endpoint with the real address of VictoriaLogs.
The ingested log entries can be queried according to these docs.
See also: