first commit

.github/scripts/send-docker-stats.mjs

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+#!/usr/bin/env node
+/**
+ * Sends Docker build stats to a webhook for BigQuery ingestion.
+ *
+ * Reads manifests produced by build-n8n.mjs and dockerize-n8n.mjs,
+ * enriches with git/CI/runner context, and POSTs to a webhook.
+ *
+ * Usage: node send-docker-stats.mjs
+ *
+ * Environment variables:
+ *   DOCKER_STATS_WEBHOOK_URL - Webhook URL (required to send)
+ */
+
+import { existsSync, readFileSync } from 'node:fs';
+import * as os from 'node:os';
+
+const buildManifestPath = 'compiled/build-manifest.json';
+const dockerManifestPath = 'docker-build-manifest.json';
+
+if (!existsSync(buildManifestPath) && !existsSync(dockerManifestPath)) {
+	console.log('No build or docker manifests found, skipping.');
+	process.exit(0);
+}
+
+const webhookUrl = process.env.DOCKER_STATS_WEBHOOK_URL;
+
+if (!webhookUrl) {
+	console.log('DOCKER_STATS_WEBHOOK_URL not set, skipping.');
+	process.exit(0);
+}
+
+const buildManifest = existsSync(buildManifestPath)
+	? JSON.parse(readFileSync(buildManifestPath, 'utf-8'))
+	: null;
+
+const dockerManifest = existsSync(dockerManifestPath)
+	? JSON.parse(readFileSync(dockerManifestPath, 'utf-8'))
+	: null;
+
+// Extract PR number from GITHUB_REF (refs/pull/123/merge)
+const ref = process.env.GITHUB_REF ?? '';
+const prMatch = ref.match(/refs\/pull\/(\d+)/);
+
+// Detect runner provider (matches packages/testing/containers/telemetry.ts)
+function getRunnerProvider() {
+	if (!process.env.CI) return 'local';
+	if (process.env.RUNNER_ENVIRONMENT === 'github-hosted') return 'github';
+	return 'blacksmith';
+}
+
+const payload = {
+	build: buildManifest
+		? {
+				artifactSize: buildManifest.artifactSize,
+				buildDuration: buildManifest.buildDuration,
+			}
+		: null,
+
+	docker: dockerManifest
+		? {
+				platform: dockerManifest.platform,
+				images: dockerManifest.images,
+			}
+		: null,
+
+	git: {
+		sha: process.env.GITHUB_SHA?.slice(0, 8) || null,
+		branch: process.env.GITHUB_HEAD_REF ?? process.env.GITHUB_REF_NAME ?? null,
+		pr: prMatch ? parseInt(prMatch[1], 10) : null,
+	},
+
+	ci: {
+		runId: process.env.GITHUB_RUN_ID || null,
+		runUrl: process.env.GITHUB_RUN_ID
+			? `https://github.com/${process.env.GITHUB_REPOSITORY}/actions/runs/${process.env.GITHUB_RUN_ID}`
+			: null,
+		job: process.env.GITHUB_JOB || null,
+		workflow: process.env.GITHUB_WORKFLOW || null,
+		attempt: process.env.GITHUB_RUN_ATTEMPT ? parseInt(process.env.GITHUB_RUN_ATTEMPT, 10) : null,
+	},
+
+	runner: {
+		provider: getRunnerProvider(),
+		cpuCores: os.cpus().length,
+		memoryGb: Math.round((os.totalmem() / (1024 * 1024 * 1024)) * 10) / 10,
+	},
+};
+
+const response = await fetch(webhookUrl, {
+	method: 'POST',
+	headers: {
+		'Content-Type': 'application/json',
+	},
+	body: JSON.stringify(payload),
+});
+
+if (!response.ok) {
+	console.error(`Webhook failed: ${response.status} ${response.statusText}`);
+	const body = await response.text();
+	if (body) console.error(`Response: ${body}`);
+	process.exit(1);
+}
+
+console.log(`Docker build stats sent: ${response.status}`);