feat: switch logging to pino

Closes HP-279

app/entry.server.tsx

@@ -7,6 +7,8 @@ import { renderToPipeableStream } from "react-dom/server";
 import type { AppLoadContext, EntryContext } from "react-router";
 import { ServerRouter } from "react-router";
 
+import log from "~/utils/log";
+
 export const streamTimeout = 5_000;
 export default function handleRequest(
   request: Request,
@@ -52,7 +54,7 @@ export default function handleRequest(
           // errors encountered during initial shell rendering since they'll
           // reject and get logged in handleDocumentRequest.
           if (shellRendered) {
-            console.error(error);
+            log.error("server", "Streaming render error: %o", error);
           }
         },
       },

app/server/main.ts

@@ -57,15 +57,22 @@ const listenFile = listenFilePath
     }
   : undefined;
 
+const runtimeLogger = {
+  info: (message: string, ...args: unknown[]) => log.info("server", message, ...args),
+  error: (message: string, ...args: unknown[]) => log.error("server", message, ...args),
+};
+
 startHttpServer({
   host: config.server.host,
   port: config.server.port,
   tls,
+  logger: runtimeLogger,
   listenFile,
   listener: composeListener({
     basename: __PREFIX__,
     staticRoot: clientDir,
     immutableAssets: true,
+    logger: runtimeLogger,
     requestListener,
   }),
   onShutdown: dispose,

app/utils/log.ts

@@ -1,44 +1,58 @@
 // MARK: Side-Effects
-// This module contains a side-effect because everything running here
+// This module contains a side-effect because log levels are read from
-// is static and logger is later modified in `app/server/index.ts` to
+// the environment once at module initialization.
-// disable debug logging if the `HEADPLANE_DEBUG_LOG` specifies as such.
+
+import pino from "pino";
 
 const levels = ["info", "warn", "error", "debug"] as const;
 type Category = "server" | "config" | "agent" | "api" | "auth" | "sse";
+type Level = (typeof levels)[number];
 
 export interface Logger extends Record<
-  (typeof levels)[number],
+  Level,
   (category: Category, message: string, ...args: unknown[]) => void
 > {
   debugEnabled: boolean;
 }
 
-const logLevels = getLogLevels();
+const rootLogger = createRootLogger();
 export default {
-  debugEnabled: logLevels.includes("debug"),
+  debugEnabled: rootLogger.isLevelEnabled("debug"),
-  debug: (..._: Parameters<Logger["debug"]>) => {},
+  info: (category, msg, ...args) => rootLogger.info({ component: category }, msg, ...args),
-  ...Object.fromEntries(
+  warn: (category, msg, ...args) => rootLogger.warn({ component: category }, msg, ...args),
-    logLevels.map((level) => [
+  error: (category, msg, ...args) => rootLogger.error({ component: category }, msg, ...args),
-      level,
+  debug: (category, msg, ...args) => rootLogger.debug({ component: category }, msg, ...args),
-      (category: Category, message: string, ...args: unknown[]) => {
-        const date = new Date().toISOString();
-        console.log(`${date} [${category}] ${level.toUpperCase()}: ${message}`, ...args);
-      },
-    ]),
-  ),
 } as Logger;
 
-function getLogLevels() {
+function createRootLogger() {
+  const options = {
+    level: getLogLevel(),
+    timestamp: () => `,"timestamp":"${new Date().toISOString()}"`,
+    formatters: {
+      level: (label: string) => ({ level: label }),
+    },
+  } satisfies pino.LoggerOptions;
+
+  if (process.env.NODE_ENV === "test") {
+    return pino(options);
+  }
+
+  const destination = pino.destination({ dest: 1, sync: false });
+  process.on("exit", () => destination.flushSync());
+  return pino(options, destination);
+}
+
+function getLogLevel(): Level {
   const debugLog = process.env.HEADPLANE_DEBUG_LOG;
   if (debugLog == null) {
-    return ["info", "warn", "error"];
+    return "info";
   }
 
   const normalized = debugLog.trim().toLowerCase();
   const truthyValues = ["1", "true", "yes", "on"];
   if (!truthyValues.includes(normalized)) {
-    return ["info", "warn", "error"];
+    return "info";
   }
 
-  return ["info", "warn", "error", "debug"];
+  return "debug";
 }

docs/configuration/index.md

@@ -82,6 +82,10 @@ The path-based secret loading mechanism also works with environment variables. F
 
 ## Debugging
 
+Headplane writes server logs as newline-delimited JSON using Pino. Each entry
+includes a timestamp, level, component, and message (`msg`) so log aggregation
+tools can filter and index it directly.
+
 To enable debug logging, set the **`HEADPLANE_DEBUG_LOG=true`** environment variable.
 This will enable all debug logs for Headplane, which could fill up log space very quickly.
 This is not recommended in production environments.

package.json

@@ -7,7 +7,7 @@
   "scripts": {
     "preinstall": "npx only-allow pnpm",
     "build": "react-router build",
-    "dev": "HEADPLANE_CONFIG_PATH=./config.example.yaml react-router dev",
+    "dev": "HEADPLANE_CONFIG_PATH=./config.example.yaml react-router dev | pino-pretty -c",
     "start": "node build/server/index.js",
     "typecheck": "react-router typegen && tsgo",
     "test:unit": "vitest run --project unit",
@@ -40,6 +40,7 @@
     "js-yaml": "^4.1.1",
     "lucide-react": "^1.8.0",
     "mime": "^4.1.0",
+    "pino": "^10.3.1",
     "react": "19.2.5",
     "react-codemirror-merge": "4.25.9",
     "react-dom": "19.2.5",
@@ -66,6 +67,7 @@
     "oxfmt": "^0.44.0",
     "oxlint": "^1.59.0",
     "oxlint-tsgolint": "^0.20.0",
+    "pino-pretty": "^13.1.3",
     "tailwindcss": "^4.2.2",
     "tailwindcss-animate": "^1.0.7",
     "testcontainers": "^11.14.0",

pnpm-lock.yaml

@@ -74,6 +74,9 @@ importers:
       mime:
         specifier: ^4.1.0
         version: 4.1.0
+      pino:
+        specifier: ^10.3.1
+        version: 10.3.1
       react:
         specifier: 19.2.5
         version: 19.2.5
@@ -147,6 +150,9 @@ importers:
       oxlint-tsgolint:
         specifier: ^0.20.0
         version: 0.20.0
+      pino-pretty:
+        specifier: ^13.1.3
+        version: 13.1.3
       tailwindcss:
         specifier: ^4.2.2
         version: 4.2.2
@@ -1396,6 +1402,9 @@ packages:
     cpu: [x64]
     os: [win32]
 
+  '@pinojs/redact@0.4.0':
+    resolution: {integrity: sha512-k2ENnmBugE/rzQfEcdWHcCY+/FM3VLzH9cYEsbdsoqrvzAKRhUZeRNhAZvB8OitQJ1TBed3yqWtdjzS6wJKBwg==}
+
   '@pkgjs/parseargs@0.11.0':
     resolution: {integrity: sha512-+1VkjdD0QBLPodGrJUeqarH8VAIvQODIbwh9XpP5Syisf7YoQgsJKPNFoqqLQlu+VQ/tVSshMR6loPMn8U+dPg==}
     engines: {node: '>=14'}
@@ -2133,6 +2142,10 @@ packages:
   asynckit@0.4.0:
     resolution: {integrity: sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==}
 
+  atomic-sleep@1.0.0:
+    resolution: {integrity: sha512-kNOjDqAh7px0XWNI+4QbzoiR/nTkHAWNud2uvnJquD1/x5a7EQZMJT0AczqK0Qn67oY/TTQ1LbUKajZpp3I9tQ==}
+    engines: {node: '>=8.0.0'}
+
   b4a@1.7.3:
     resolution: {integrity: sha512-5Q2mfq2WfGuFp3uS//0s6baOJLMoVduPYVeNmDYxu5OUA1/cBfvr2RIS7vi62LdNj/urk1hfmj867I3qt6uZ7Q==}
     peerDependencies:
@@ -2334,6 +2347,9 @@ packages:
   color-name@1.1.4:
     resolution: {integrity: sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==}
 
+  colorette@2.0.20:
+    resolution: {integrity: sha512-IfEDxwoWIjkeXL1eXcDiow4UbKjhLdq6/EuSVR9GMN7KVH3r9gQ83e73hsz1Nd1T3ijd5xv1wcWRYO+D6kCI2w==}
+
   combined-stream@1.0.8:
     resolution: {integrity: sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==}
     engines: {node: '>= 0.8'}
@@ -2402,6 +2418,9 @@ packages:
     resolution: {integrity: sha512-0R9ikRb668HB7QDxT1vkpuUBtqc53YyAwMwGeUFKRojY/NWKvdZ+9UYtRfGmhqNbRkTSVpMbmyhXipFFv2cb/A==}
     engines: {node: '>= 12'}
 
+  dateformat@4.6.3:
+    resolution: {integrity: sha512-2P0p0pFGzHS5EMnhdxQi7aJN+iMheud0UhG4dlE1DLAlvL8JHjJJTX/CSm4JXwV0Ka5nGk3zC5mcb5bUQUxxMA==}
+
   debug@4.4.3:
     resolution: {integrity: sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==}
     engines: {node: '>=6.0'}
@@ -2692,9 +2711,15 @@ packages:
   exsolve@1.0.8:
     resolution: {integrity: sha512-LmDxfWXwcTArk8fUEnOfSZpHOJ6zOMUJKOtFLFqJLoKJetuQG874Uc7/Kki7zFLzYybmZhp1M7+98pfMqeX8yA==}
 
+  fast-copy@4.0.3:
+    resolution: {integrity: sha512-58apWr0GUiDFM8+3afrO6eYwJBn9ZAhDOzG3L+/9llab/haCARS2UIfffmOurYLwbgDRs8n0rfr6qAAPEAuAQw==}
+
   fast-fifo@1.3.2:
     resolution: {integrity: sha512-/d9sfos4yxzpwkDkuN7k2SqFKtYNmCTzgfEpz82x34IM9/zc8KGxQoXg1liNC/izpRM/MBdt44Nmx41ZWqk+FQ==}
 
+  fast-safe-stringify@2.1.1:
+    resolution: {integrity: sha512-W+KJc2dmILlPplD/H4K9l9LcAHAfPtP6BY84uVLXQ6Evcz9Lcg33Y2z1IVblT6xdY54PXYVHEv+0Wpq8Io6zkA==}
+
   fdir@6.5.0:
     resolution: {integrity: sha512-tIbYtZbucOs0BRGqPJkshJUYdL+SDH7dVM8gjy+ERp3WAUjLEFJE+02kanyHtwjWOnwrKYBiwAmM0p4kLJAnXg==}
     engines: {node: '>=12.0.0'}
@@ -2796,6 +2821,9 @@ packages:
   hast-util-whitespace@3.0.0:
     resolution: {integrity: sha512-88JUN06ipLwsnv+dVn+OIYOvAuvBMy/Qoi6O7mQHxdPXpjy+Cd6xRkWwux7DKO+4sYILtLBRIKgsdpS2gQc7qw==}
 
+  help-me@5.0.0:
+    resolution: {integrity: sha512-7xgomUX6ADmcYzFik0HzAxh/73YlKR9bmFzf51CZwR+b6YtzU2m0u49hQCqV6SvlqIqsaxovfwdvbnsw3b/zpg==}
+
   hookable@5.5.3:
     resolution: {integrity: sha512-Yc+BQe8SvoXH1643Qez1zqLRmbA5rCL+sSmk6TVos0LWVfNIB7PGncdlId77WzLGSIB5KaWgTaNTs2lNVEI6VQ==}
 
@@ -2886,6 +2914,10 @@ packages:
   jose@6.2.2:
     resolution: {integrity: sha512-d7kPDd34KO/YnzaDOlikGpOurfF0ByC2sEV4cANCtdqLlTfBlw2p14O/5d/zv40gJPbIQxfES3nSx1/oYNyuZQ==}
 
+  joycon@3.1.1:
+    resolution: {integrity: sha512-34wB/Y7MW7bzjKRjUKTa46I2Z7eV62Rkhva+KkopW7Qvv/OSWBqvkSY7vusOPrNuZcUG3tApvdVgNB8POj3SPw==}
+    engines: {node: '>=10'}
+
   js-base64@3.7.8:
     resolution: {integrity: sha512-hNngCeKxIUQiEUN3GPJOkz4wF/YvdUdbNL9hsBcMQTkKzboD7T/q3OYOuuPZLUE6dBxSGpwhk5mwuDud7JVAow==}
 
@@ -3246,6 +3278,10 @@ packages:
   obug@2.1.1:
     resolution: {integrity: sha512-uTqF9MuPraAQ+IsnPf366RG4cP9RtUi7MLO1N3KEc+wb0a6yKpeL0lmk2IB1jY5KHPAlTc6T/JRdC/YqxHNwkQ==}
 
+  on-exit-leak-free@2.1.2:
+    resolution: {integrity: sha512-0eJJY6hXLGf1udHwfNftBqH+g73EU4B504nZeKpz1sYRKafAghwxEJunB2O7rDZkL4PGfsMVnTXZ2EjibbqcsA==}
+    engines: {node: '>=14.0.0'}
+
   once@1.4.0:
     resolution: {integrity: sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==}
 
@@ -3312,6 +3348,20 @@ packages:
     resolution: {integrity: sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A==}
     engines: {node: '>=12'}
 
+  pino-abstract-transport@3.0.0:
+    resolution: {integrity: sha512-wlfUczU+n7Hy/Ha5j9a/gZNy7We5+cXp8YL+X+PG8S0KXxw7n/JXA3c46Y0zQznIJ83URJiwy7Lh56WLokNuxg==}
+
+  pino-pretty@13.1.3:
+    resolution: {integrity: sha512-ttXRkkOz6WWC95KeY9+xxWL6AtImwbyMHrL1mSwqwW9u+vLp/WIElvHvCSDg0xO/Dzrggz1zv3rN5ovTRVowKg==}
+    hasBin: true
+
+  pino-std-serializers@7.1.0:
+    resolution: {integrity: sha512-BndPH67/JxGExRgiX1dX0w1FvZck5Wa4aal9198SrRhZjH3GxKQUKIBnYJTdj2HDN3UQAS06HlfcSbQj2OHmaw==}
+
+  pino@10.3.1:
+    resolution: {integrity: sha512-r34yH/GlQpKZbU1BvFFqOjhISRo1MNx1tWYsYvmj6KIRHSPMT2+yHOEb1SG6NMvRoHRF0a07kCOox/9yakl1vg==}
+    hasBin: true
+
   pkg-types@2.3.0:
     resolution: {integrity: sha512-SIqCzDRg0s9npO5XQ3tNZioRY1uK06lA41ynBC1YmFTmnY6FjUjVt6s4LoADmwoig1qqD0oK8h1p/8mlMx8Oig==}
 
@@ -3333,6 +3383,9 @@ packages:
   process-nextick-args@2.0.1:
     resolution: {integrity: sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==}
 
+  process-warning@5.0.0:
+    resolution: {integrity: sha512-a39t9ApHNx2L4+HBnQKqxxHNs1r7KF+Intd8Q/g1bUh6q0WIp9voPXJ/x0j+ZL45KF1pJd9+q2jLIRMfvEshkA==}
+
   process@0.11.10:
     resolution: {integrity: sha512-cdGef/drWFoydD1JsMzuFf8100nZl+GT+yacc2bEced5f9Rjk4z+WtFUTBu9PhOi9j/jfmBPu0mMEY4wIdAF8A==}
     engines: {node: '>= 0.6.0'}
@@ -3360,6 +3413,9 @@ packages:
   pump@3.0.4:
     resolution: {integrity: sha512-VS7sjc6KR7e1ukRFhQSY5LM2uBWAUPiOPa/A3mkKmiMwSmRFUITt0xuj+/lesgnCv+dPIEYlkzrcyXgquIHMcA==}
 
+  quick-format-unescaped@4.0.4:
+    resolution: {integrity: sha512-tYC1Q1hgyRuHgloV/YXs2w15unPVh8qfu/qCTfhTYamaw7fyhumKa2yGpdSo87vY32rIclj+4fWYQXUMs9EHvg==}
+
   rc@1.2.8:
     resolution: {integrity: sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==}
     hasBin: true
@@ -3428,6 +3484,13 @@ packages:
     resolution: {integrity: sha512-GDhwkLfywWL2s6vEjyhri+eXmfH6j1L7JE27WhqLeYzoh/A3DBaYGEj2H/HFZCn/kMfim73FXxEJTw06WtxQwg==}
     engines: {node: '>= 14.18.0'}
 
+  real-require@0.2.0:
+    resolution: {integrity: sha512-57frrGM/OCTLqLOAh0mhVA9VBMHd+9U7Zb2THMGdBUoZVOtGbJzjxsYGDJ3A9AYYCP4hn6y1TVbaOfzWtm5GFg==}
+    engines: {node: '>= 12.13.0'}
+
+  real-require@1.0.0:
+    resolution: {integrity: sha512-P4nbQYQfePJxRSmY+v/KINxVucm4NF3p3s7pJveMTtom52FR4YGltUQLB8idDXwDDWW+eYrWDFbuzUnjoWHF7g==}
+
   regex-recursion@6.0.2:
     resolution: {integrity: sha512-0YCaSCq2VRIebiaUviZNs0cBz1kg5kVS2UKUfNIx8YVs1cN3AV7NTctO5FOKBA+UT2BPJIWZauYHPqJODG50cg==}
 
@@ -3481,12 +3544,19 @@ packages:
   safe-buffer@5.2.1:
     resolution: {integrity: sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==}
 
+  safe-stable-stringify@2.5.0:
+    resolution: {integrity: sha512-b3rppTKm9T+PsVCBEOUR46GWI7fdOs00VKZ1+9c1EWDaDMvjQc6tUwuFyIprgGgTcWoVHSKrU8H31ZHA2e0RHA==}
+    engines: {node: '>=10'}
+
   safer-buffer@2.1.2:
     resolution: {integrity: sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==}
 
   scheduler@0.27.0:
     resolution: {integrity: sha512-eNv+WrVbKu1f3vbYJT/xtiF5syA5HPIMtf9IgY/nKg0sWqzAUEvqY/xm7OcZc/qafLx/iO9FgOmeSAp4v5ti/Q==}
 
+  secure-json-parse@4.1.0:
+    resolution: {integrity: sha512-l4KnYfEyqYJxDwlNVyRfO2E4NTHfMKAWdUuA8J0yve2Dz/E/PdBepY03RvyJpssIpRFwJoCD55wA+mEDs6ByWA==}
+
   semver@6.3.1:
     resolution: {integrity: sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==}
     hasBin: true
@@ -3538,6 +3608,9 @@ packages:
     resolution: {integrity: sha512-HLpt+uLy/pxB+bum/9DzAgiKS8CX1EvbWxI4zlmgGCExImLdiad2iCwXT5Z4c9c3Eq8rP2318mPW2c+QbtjK8A==}
     engines: {node: '>= 10.0.0', npm: '>= 3.0.0'}
 
+  sonic-boom@4.2.1:
+    resolution: {integrity: sha512-w6AxtubXa2wTXAUsZMMWERrsIRAdrK0Sc+FUytWvYAhBJLyuI4llrMIC1DtlNSdI99EI86KZum2MMq3EAZlF9Q==}
+
   source-map-js@1.2.1:
     resolution: {integrity: sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA==}
     engines: {node: '>=0.10.0'}
@@ -3559,6 +3632,10 @@ packages:
   split-ca@1.0.1:
     resolution: {integrity: sha512-Q5thBSxp5t8WPTTJQS59LrGqOZqOsrhDGDVm8azCqIBjSBd7nd9o2PM+mDulQQkh8h//4U6hFZnc/mul8t5pWQ==}
 
+  split2@4.2.0:
+    resolution: {integrity: sha512-UcjcJOWknrNkF6PLX83qcHM6KHgVKNkV62Y8a5uYDVv9ydGQVwAHMKqHdJje1VTWpljG0WYpCDhrCdAOYH4TWg==}
+    engines: {node: '>= 10.x'}
+
   sprintf-js@1.1.3:
     resolution: {integrity: sha512-Oo+0REFV59/rz3gfJNKQiBlwfHaSESl1pcGyABQsnnIfWOFt6JNj5gCog2U6MLZ//IGYD+nA8nI+mTShREReaA==}
 
@@ -3614,6 +3691,10 @@ packages:
     resolution: {integrity: sha512-4gB8na07fecVVkOI6Rs4e7T6NOTki5EmL7TUduTs6bu3EdnSycntVJ4re8kgZA+wx9IueI2Y11bfbgwtzuE0KQ==}
     engines: {node: '>=0.10.0'}
 
+  strip-json-comments@5.0.3:
+    resolution: {integrity: sha512-1tB5mhVo7U+ETBKNf92xT4hrQa3pm0MZ0PQvuDnWgAAGHDsfp4lPSpiS6psrSiet87wyGPh9ft6wmhOMQ0hDiw==}
+    engines: {node: '>=14.16'}
+
   style-mod@4.1.3:
     resolution: {integrity: sha512-i/n8VsZydrugj3Iuzll8+x/00GH2vnYsk1eomD8QiRrSAeW6ItbCQDtfXCeJHd0iwiNagqjQkvpvREEPtW3IoQ==}
 
@@ -3695,6 +3776,10 @@ packages:
     peerDependencies:
       typescript: ^5
 
+  thread-stream@4.2.0:
+    resolution: {integrity: sha512-e2zZ96wSChazBsbENf/Pcm/4swHt2cEKQ92rhUjkL9GCKiTDJIaTBenjE/m9DXi0QBmTMDkFDdOomUy20A1tDQ==}
+    engines: {node: '>=20'}
+
   tinybench@2.9.0:
     resolution: {integrity: sha512-0+DUvqWMValLmha6lr4kD8iAMK1HzV0/aKnCtWb9v9641TnP/MFb7Pc2bxoxQjTXAErryXVgUOfv2YqNllqGeg==}
 
@@ -5138,6 +5223,8 @@ snapshots:
   '@oxlint/binding-win32-x64-msvc@1.59.0':
     optional: true
 
+  '@pinojs/redact@0.4.0': {}
+
   '@pkgjs/parseargs@0.11.0':
     optional: true
 
@@ -5840,6 +5927,8 @@ snapshots:
 
   asynckit@0.4.0: {}
 
+  atomic-sleep@1.0.0: {}
+
   b4a@1.7.3: {}
 
   b4a@1.8.0: {}
@@ -6040,6 +6129,8 @@ snapshots:
 
   color-name@1.1.4: {}
 
+  colorette@2.0.20: {}
+
   combined-stream@1.0.8:
     dependencies:
       delayed-stream: 1.0.0
@@ -6106,6 +6197,8 @@ snapshots:
   data-uri-to-buffer@4.0.1:
     optional: true
 
+  dateformat@4.6.3: {}
+
   debug@4.4.3:
     dependencies:
       ms: 2.1.3
@@ -6348,8 +6441,12 @@ snapshots:
 
   exsolve@1.0.8: {}
 
+  fast-copy@4.0.3: {}
+
   fast-fifo@1.3.2: {}
 
+  fast-safe-stringify@2.1.1: {}
+
   fdir@6.5.0(picomatch@4.0.4):
     optionalDependencies:
       picomatch: 4.0.4
@@ -6468,6 +6565,8 @@ snapshots:
     dependencies:
       '@types/hast': 3.0.4
 
+  help-me@5.0.0: {}
+
   hookable@5.5.3: {}
 
   hpagent@1.2.0: {}
@@ -6541,6 +6640,8 @@ snapshots:
 
   jose@6.2.2: {}
 
+  joycon@3.1.1: {}
+
   js-base64@3.7.8:
     optional: true
 
@@ -6794,8 +6895,7 @@ snapshots:
     dependencies:
       brace-expansion: 2.0.3
 
-  minimist@1.2.8:
+  minimist@1.2.8: {}
-    optional: true
 
   minipass@7.1.3: {}
 
@@ -6861,6 +6961,8 @@ snapshots:
 
   obug@2.1.1: {}
 
+  on-exit-leak-free@2.1.2: {}
+
   once@1.4.0:
     dependencies:
       wrappy: 1.0.2
@@ -6962,6 +7064,42 @@ snapshots:
 
   picomatch@4.0.4: {}
 
+  pino-abstract-transport@3.0.0:
+    dependencies:
+      split2: 4.2.0
+
+  pino-pretty@13.1.3:
+    dependencies:
+      colorette: 2.0.20
+      dateformat: 4.6.3
+      fast-copy: 4.0.3
+      fast-safe-stringify: 2.1.1
+      help-me: 5.0.0
+      joycon: 3.1.1
+      minimist: 1.2.8
+      on-exit-leak-free: 2.1.2
+      pino-abstract-transport: 3.0.0
+      pump: 3.0.4
+      secure-json-parse: 4.1.0
+      sonic-boom: 4.2.1
+      strip-json-comments: 5.0.3
+
+  pino-std-serializers@7.1.0: {}
+
+  pino@10.3.1:
+    dependencies:
+      '@pinojs/redact': 0.4.0
+      atomic-sleep: 1.0.0
+      on-exit-leak-free: 2.1.2
+      pino-abstract-transport: 3.0.0
+      pino-std-serializers: 7.1.0
+      process-warning: 5.0.0
+      quick-format-unescaped: 4.0.4
+      real-require: 0.2.0
+      safe-stable-stringify: 2.5.0
+      sonic-boom: 4.2.1
+      thread-stream: 4.2.0
+
   pkg-types@2.3.0:
     dependencies:
       confbox: 0.2.4
@@ -6994,6 +7132,8 @@ snapshots:
 
   process-nextick-args@2.0.1: {}
 
+  process-warning@5.0.0: {}
+
   process@0.11.10: {}
 
   promise-limit@2.7.0:
@@ -7039,6 +7179,8 @@ snapshots:
       end-of-stream: 1.4.5
       once: 1.4.0
 
+  quick-format-unescaped@4.0.4: {}
+
   rc@1.2.8:
     dependencies:
       deep-extend: 0.6.0
@@ -7121,6 +7263,10 @@ snapshots:
 
   readdirp@4.1.2: {}
 
+  real-require@0.2.0: {}
+
+  real-require@1.0.0: {}
+
   regex-recursion@6.0.2:
     dependencies:
       regex-utilities: 2.3.0
@@ -7202,10 +7348,14 @@ snapshots:
 
   safe-buffer@5.2.1: {}
 
+  safe-stable-stringify@2.5.0: {}
+
   safer-buffer@2.1.2: {}
 
   scheduler@0.27.0: {}
 
+  secure-json-parse@4.1.0: {}
+
   semver@6.3.1: {}
 
   semver@7.7.4: {}
@@ -7260,6 +7410,10 @@ snapshots:
       ip-address: 10.1.0
       smart-buffer: 4.2.0
 
+  sonic-boom@4.2.1:
+    dependencies:
+      atomic-sleep: 1.0.0
+
   source-map-js@1.2.1: {}
 
   source-map-support@0.5.21:
@@ -7277,6 +7431,8 @@ snapshots:
 
   split-ca@1.0.1: {}
 
+  split2@4.2.0: {}
+
   sprintf-js@1.1.3: {}
 
   ssh-remote-port-forward@1.0.4:
@@ -7352,6 +7508,8 @@ snapshots:
   strip-json-comments@2.0.1:
     optional: true
 
+  strip-json-comments@5.0.3: {}
+
   style-mod@4.1.3: {}
 
   superjson@2.2.2:
@@ -7519,6 +7677,10 @@ snapshots:
     dependencies:
       typescript: 6.0.2
 
+  thread-stream@4.2.0:
+    dependencies:
+      real-require: 1.0.0
+
   tinybench@2.9.0: {}
 
   tinyexec@1.1.1: {}

runtime/http.ts

@@ -19,16 +19,31 @@ import {
 import { extname, normalize, resolve, sep } from "node:path";
 
 import mime from "mime";
+import pino from "pino";
 
 export interface Logger {
   info: (msg: string, ...args: unknown[]) => void;
   error: (msg: string, ...args: unknown[]) => void;
 }
 
-// TODO: Replace with Pino!
+const runtimeDestination = pino.destination({ dest: 1, sync: false });
+process.on("exit", () => runtimeDestination.flushSync());
+
+const runtimePino = pino(
+  {
+    base: { service: "headplane" },
+    messageKey: "message",
+    timestamp: () => `,"timestamp":"${new Date().toISOString()}"`,
+    formatters: {
+      level: (label) => ({ level: label }),
+    },
+  },
+  runtimeDestination,
+);
+
 const defaultLogger: Logger = {
-  info: (msg, ...args) => console.log(`[runtime] ${msg}`, ...args),
+  info: (msg, ...args) => runtimePino.info({ component: "runtime" }, msg, ...args),
-  error: (msg, ...args) => console.error(`[runtime] ${msg}`, ...args),
+  error: (msg, ...args) => runtimePino.error({ component: "runtime" }, msg, ...args),
 };
 
 export interface StaticOptions {

tests/unit/utils/log.test.ts

@@ -0,0 +1,59 @@
+import { beforeEach, describe, expect, test, vi } from "vitest";
+
+const envSnapshot = { ...process.env };
+
+async function loadLogger() {
+  vi.resetModules();
+  const mod = await import("~/utils/log");
+  return mod.default;
+}
+
+describe("structured logger", () => {
+  beforeEach(() => {
+    process.env = { ...envSnapshot };
+    vi.restoreAllMocks();
+  });
+
+  test("writes JSON log entries", async () => {
+    process.env.HEADPLANE_DEBUG_LOG = "false";
+    const spy = vi.spyOn(process.stdout, "write").mockImplementation(() => true);
+    const log = await loadLogger();
+
+    log.info("server", "Listening on %s://%s:%s", "http", "127.0.0.1", 3000);
+
+    expect(spy).toHaveBeenCalledOnce();
+    const entry = JSON.parse(spy.mock.calls[0][0] as string);
+    expect(entry).toMatchObject({
+      level: "info",
+      component: "server",
+      msg: "Listening on http://127.0.0.1:3000",
+    });
+    expect(entry.timestamp).toEqual(expect.any(String));
+  });
+
+  test("keeps debug logs disabled by default", async () => {
+    delete process.env.HEADPLANE_DEBUG_LOG;
+    const spy = vi.spyOn(process.stdout, "write").mockImplementation(() => true);
+    const log = await loadLogger();
+
+    log.debug("api", "GET %s", "/v1/node");
+
+    expect(log.debugEnabled).toBe(false);
+    expect(spy).not.toHaveBeenCalled();
+  });
+
+  test("writes debug entries when enabled", async () => {
+    process.env.HEADPLANE_DEBUG_LOG = "true";
+    const spy = vi.spyOn(process.stdout, "write").mockImplementation(() => true);
+    const log = await loadLogger();
+
+    log.debug("api", "GET %s", "/v1/node");
+
+    expect(log.debugEnabled).toBe(true);
+    expect(JSON.parse(spy.mock.calls[0][0] as string)).toMatchObject({
+      level: "debug",
+      component: "api",
+      msg: "GET /v1/node",
+    });
+  });
+});