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fix: add production code instrumentation #677

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merged 1 commit into from
Jan 24, 2025
Merged

fix: add production code instrumentation #677

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2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@
"lint": "eslint .",
"lint:fix": "eslint . --fix",
"prettier": "prettier --write '**/*.js?(on)'",
"start": "node server/index.js",
"start": "node --require ./server/instrumentation.js ./server/index.js",
"test": "node --test",
"husky:install": "npx husky",
"husky:uninstall": "git config --unset core.hooksPath"
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28 changes: 17 additions & 11 deletions server/instrumentation.js
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Original file line number Diff line number Diff line change
Expand Up @@ -24,18 +24,20 @@ const pkg = require('../package.json')

require('dotenv').config()

if (
!process.env.GRAFANA_OTLP_ENDPOINT ||
!process.env.GRAFANA_INSTANCE_ID ||
!process.env.GRAFANA_API_KEY
) {
console.error('Grafana instrumentation not fully configured, skipping.')
const endpoint = process.env.GRAFANA_OTLP_ENDPOINT
const instanceId = process.env.GRAFANA_INSTANCE_ID
const apiKey = process.env.GRAFANA_API_KEY

if (!endpoint || !instanceId || !apiKey) {
console.warn('Grafana instrumentation not fully configured, skipping.')
process.exit(0)
}

const base64Key = Buffer.from(
`${process.env.GRAFANA_INSTANCE_ID}:${process.env.GRAFANA_API_KEY}`
).toString('base64')
console.log(
`Starting Grafana instrumentation on '${endpoint}', instance '${instanceId}'...`
)

const base64Key = Buffer.from(`${instanceId}:${apiKey}`).toString('base64')

const sdk = new NodeSDK({
resource: new Resource({
Expand All @@ -44,14 +46,14 @@ const sdk = new NodeSDK({
}),
resourceDetectors: [envDetector, processDetector, hostDetector],
traceExporter: new OTLPTraceExporter({
url: `${process.env.GRAFANA_OTLP_ENDPOINT}/v1/traces`,
url: `${endpoint}/v1/traces`,
headers: {
Authorization: `Basic ${base64Key}`
}
}),
metricReader: new PeriodicExportingMetricReader({
exporter: new OTLPMetricExporter({
url: `${process.env.GRAFANA_OTLP_ENDPOINT}/v1/metrics`,
url: `${endpoint}/v1/metrics`,
headers: {
Authorization: `Basic ${base64Key}`
}
Expand All @@ -61,3 +63,7 @@ const sdk = new NodeSDK({
})

sdk.start()

console.log(
`Grafana instrumentation started successfully on '${endpoint}', instance '${instanceId}'.`
)
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