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import { diag, DiagLogLevel, trace } from '@opentelemetry/api'
import { JaegerExporter } from '@opentelemetry/exporter-jaeger'
import { registerInstrumentations } from '@opentelemetry/instrumentation'
import { DnsInstrumentation } from '@opentelemetry/instrumentation-dns'
import { ExpressInstrumentation } from '@opentelemetry/instrumentation-express'
import FsInstrumentation from '@opentelemetry/instrumentation-fs'
import { HttpInstrumentation } from '@opentelemetry/instrumentation-http'
import { PgInstrumentation } from '@opentelemetry/instrumentation-pg'
import { RedisInstrumentation } from '@opentelemetry/instrumentation-redis-4'
import { Resource } from '@opentelemetry/resources'
import { BatchSpanProcessor } from '@opentelemetry/sdk-trace-base'
import { NodeTracerProvider } from '@opentelemetry/sdk-trace-node'
import { SemanticResourceAttributes } from '@opentelemetry/semantic-conventions'
import { logger } from '@server/helpers/logger'
import { CONFIG } from '@server/initializers/config'
function registerOpentelemetryTracing () {
if (CONFIG.OPEN_TELEMETRY.TRACING.ENABLED !== true) return
logger.info('Registering Open Telemetry tracing')
const customLogger = (level: string) => {
return (message: string, ...args: unknown[]) => {
let fullMessage = message
for (const arg of args) {
if (typeof arg === 'string') fullMessage += arg
else break
}
logger[level](fullMessage)
}
}
diag.setLogger({
error: customLogger('error'),
warn: customLogger('warn'),
info: customLogger('info'),
debug: customLogger('debug'),
verbose: customLogger('verbose')
}, DiagLogLevel.INFO)
const tracerProvider = new NodeTracerProvider({
resource: new Resource({
[SemanticResourceAttributes.SERVICE_NAME]: 'peertube'
})
})
registerInstrumentations({
tracerProvider: tracerProvider,
instrumentations: [
new PgInstrumentation({
enhancedDatabaseReporting: true
}),
new DnsInstrumentation(),
new HttpInstrumentation(),
new ExpressInstrumentation(),
new RedisInstrumentation({
dbStatementSerializer: function (cmdName, cmdArgs) {
return [ cmdName, ...cmdArgs ].join(' ')
}
}),
new FsInstrumentation()
]
})
tracerProvider.addSpanProcessor(
new BatchSpanProcessor(
new JaegerExporter({ endpoint: CONFIG.OPEN_TELEMETRY.TRACING.JAEGER_EXPORTER.ENDPOINT })
)
)
tracerProvider.register()
}
const tracer = trace.getTracer('peertube')
export {
registerOpentelemetryTracing,
tracer
}
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