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Dockerfile

@@ -3,16 +3,12 @@ FROM gcr.io/distroless/cc-debian12
 
 WORKDIR /app
 
-# Copy sibling dependencies referenced by package.json
-COPY dashdbschema /dashdbschema
-COPY llmorbiter /llmorbiter
-
-# Copy application runtime files and SEA binary
-COPY dashback/node_modules ./node_modules
-COPY dashback/package.json ./package.json
-COPY dashback/src ./src
+# The standalone SEA binary contains Node.js runtime, src/, package.json, and all app logic
 COPY dashback/dist/dashback ./dist/dashback
 
+# Only native C++ addons and dependencies needed by the OS dynamic linker (dlopen)
+COPY dashback/node_modules ./node_modules
+
 # Set production defaults: port 4202 only, localhost only
 ENV NODE_ENV=production \
     HOST=127.0.0.1 \

scripts/buildSea.js

@@ -1,43 +1,74 @@
 import fs from 'node:fs';
 import path from 'node:path';
+import zlib from 'node:zlib';
 import { execFileSync } from 'node:child_process';
 import { fileURLToPath } from 'node:url';
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const rootDir = path.resolve(__dirname, '..');
+const distDir = path.join(rootDir, 'dist');
+const srcDir = path.join(rootDir, 'src');
 const configPath = path.join(rootDir, 'sea-config.json');
+const payloadPath = path.join(distDir, 'app-payload.bin');
 
-if (!fs.existsSync(configPath)) {
-    console.error(`Error: Configuration file not found at ${configPath}`);
-    process.exit(1);
+// Ensure dist directory exists
+if (!fs.existsSync(distDir)) {
+    fs.mkdirSync(distDir, { recursive: true });
 }
 
-const config = JSON.parse(fs.readFileSync(configPath, 'utf8'));
-const outputPath = path.resolve(rootDir, config.output || 'dist/dashback');
-const outputDir = path.dirname(outputPath);
+console.log('Packaging application code into SEA payload...');
 
-// Ensure the target output directory exists
-if (!fs.existsSync(outputDir)) {
-    fs.mkdirSync(outputDir, { recursive: true });
+function packDirectory(dir, baseDir = dir) {
+    const result = {};
+    for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
+        const full = path.join(dir, entry.name);
+        const rel = path.relative(baseDir, full);
+        if (entry.isDirectory()) {
+            Object.assign(result, packDirectory(full, baseDir));
+        } else if (entry.isFile()) {
+            result[rel] = fs.readFileSync(full).toString('base64');
+        }
+    }
+    return result;
 }
 
-console.log('Building Node.js Single Executable Application (SEA)...');
-console.log(`Node version: ${process.version}`);
-console.log(`Config: ${path.relative(rootDir, configPath)}`);
-console.log(`Target: ${path.relative(rootDir, outputPath)}`);
+// Pack src/ and package.json
+const payload = packDirectory(srcDir);
+const pkgPath = path.join(rootDir, 'package.json');
+if (fs.existsSync(pkgPath)) {
+    payload['package.json'] = fs.readFileSync(pkgPath).toString('base64');
+}
 
+const compressedPayload = zlib.deflateSync(Buffer.from(JSON.stringify(payload)));
+fs.writeFileSync(payloadPath, compressedPayload);
+
+console.log(`Packed ${Object.keys(payload).length} files (${(compressedPayload.length / 1024 / 1024).toFixed(2)} MB compressed)`);
+
+// Prepare sea-config.json with payload asset
+const config = {
+    main: 'src/sea-entry.cjs',
+    output: 'dist/dashback',
+    assets: {
+        'app-payload.bin': 'dist/app-payload.bin',
+    },
+    disableExperimentalSEAWarning: true,
+};
+
+fs.writeFileSync(configPath, JSON.stringify(config, null, 2) + '\n');
+
+console.log('Generating Single Executable Application (SEA)...');
 try {
-    execFileSync(process.execPath, ['--build-sea', configPath], {
+    execFileSync(process.execPath, ['--build-sea', 'sea-config.json'], {
         cwd: rootDir,
         stdio: 'inherit',
     });
 
-    // Ensure executable permissions on POSIX systems
+    const outputPath = path.join(distDir, 'dashback');
     if (process.platform !== 'win32' && fs.existsSync(outputPath)) {
         fs.chmodSync(outputPath, 0o755);
     }
 
-    console.log(`\nSuccessfully built SEA executable: ${path.relative(rootDir, outputPath)}`);
+    console.log(`\nSuccessfully built standalone SEA: ${path.relative(rootDir, outputPath)}`);
 } catch (err) {
     console.error('\nFailed to build SEA:', err.message);
     process.exit(1);

sea-config.json

@@ -1,5 +1,8 @@
 {
   "main": "src/sea-entry.cjs",
   "output": "dist/dashback",
+  "assets": {
+    "app-payload.bin": "dist/app-payload.bin"
+  },
   "disableExperimentalSEAWarning": true
 }

src/sea-entry.cjs

@@ -1,15 +1,64 @@
 /**
  * SEA Entry point for dashback.
- * Injected into the Node.js single executable binary via node --build-sea.
+ * Embedded inside the Node.js single executable binary.
  *
- * When launched as a SEA binary, it resolves the project root,
- * configures module resolution, and loads src/index.js.
+ * When built with embedded assets, it unpacks the bundled src/ and package.json
+ * to a runtime directory and links the host node_modules, so native C++ addons
+ * and dependencies resolve seamlessly without needing src/ in the filesystem.
  */
-const { createRequire } = require('node:module');
-const path = require('node:path');
+const sea = require('node:sea');
 const fs = require('node:fs');
+const path = require('node:path');
+const os = require('node:os');
+const zlib = require('node:zlib');
+const { createRequire } = require('node:module');
 
-function resolveProjectRoot() {
+function getProjectRoot() {
+    // If embedded application payload is present in SEA
+    if (sea.isSea && sea.isSea() && sea.getAssetKeys && sea.getAssetKeys().includes('app-payload.bin')) {
+        const runtimeDir = process.env.DASHBACK_RUNTIME_DIR || path.join(os.tmpdir(), 'dashback-runtime');
+
+        const compressed = Buffer.from(sea.getRawAsset('app-payload.bin'));
+        const json = zlib.inflateSync(compressed).toString('utf8');
+        const files = JSON.parse(json);
+
+        for (const [relPath, b64] of Object.entries(files)) {
+            const targetFile = relPath === 'package.json'
+                ? path.join(runtimeDir, 'package.json')
+                : path.join(runtimeDir, 'src', relPath);
+
+            fs.mkdirSync(path.dirname(targetFile), { recursive: true });
+            fs.writeFileSync(targetFile, Buffer.from(b64, 'base64'));
+        }
+
+        // Link host node_modules so dependencies & native addons resolve
+        const hostNodeModules = path.resolve(process.cwd(), 'node_modules');
+        const runtimeNodeModules = path.join(runtimeDir, 'node_modules');
+        if (fs.existsSync(hostNodeModules) && !fs.existsSync(runtimeNodeModules)) {
+            try {
+                fs.symlinkSync(hostNodeModules, runtimeNodeModules, 'junction');
+            } catch {
+                // Ignore symlink failure if already exists
+            }
+        }
+
+        // Link host .env if present so config/env.js can find it
+        const hostEnv = path.resolve(process.cwd(), '.env');
+        const runtimeEnv = path.join(runtimeDir, '.env');
+        if (fs.existsSync(hostEnv) && !fs.existsSync(runtimeEnv)) {
+            try {
+                fs.symlinkSync(hostEnv, runtimeEnv, 'file');
+            } catch {
+                try {
+                    fs.copyFileSync(hostEnv, runtimeEnv);
+                } catch {}
+            }
+        }
+
+        return runtimeDir;
+    }
+
+    // Fallback if not running as packed SEA (local development)
     if (process.env.DASHBACK_ROOT && fs.existsSync(path.join(process.env.DASHBACK_ROOT, 'src/index.js'))) {
         return path.resolve(process.env.DASHBACK_ROOT);
     }
@@ -21,19 +70,14 @@ function resolveProjectRoot() {
     if (fs.existsSync(parentEntry)) {
         return path.resolve(__dirname, '..');
     }
-    const dirEntry = path.join(__dirname, 'src/index.js');
-    if (fs.existsSync(dirEntry)) {
-        return __dirname;
-    }
     return process.cwd();
 }
 
-const projectRoot = resolveProjectRoot();
-const entryFile = path.join(projectRoot, 'src/index.js');
+const projectRoot = getProjectRoot();
+const entryFile = path.join(projectRoot, 'src', 'index.js');
 
 if (!fs.existsSync(entryFile)) {
     console.error(`[SEA] Could not find dashback entry point at ${entryFile}.`);
-    console.error(`[SEA] Please ensure you are running from the dashback repository root or set DASHBACK_ROOT.`);
     process.exit(1);
 }