feat: add Docker configuration files and installation script for SurfSense

surfsense_web/docker-entrypoint.js

@@ -0,0 +1,100 @@
+/**
+ * Runtime environment variable substitution for Next.js Docker images.
+ *
+ * Next.js inlines NEXT_PUBLIC_* values at build time. The Docker image is built
+ * with unique placeholder strings (e.g. __NEXT_PUBLIC_FASTAPI_BACKEND_URL__).
+ * This script replaces those placeholders with real values from the container's
+ * environment variables before the server starts.
+ *
+ * Runs once at container startup via docker-entrypoint.sh.
+ */
+
+const fs = require("fs");
+const path = require("path");
+
+const replacements = [
+  [
+    "__NEXT_PUBLIC_FASTAPI_BACKEND_URL__",
+    process.env.NEXT_PUBLIC_FASTAPI_BACKEND_URL || "http://localhost:8000",
+  ],
+  [
+    "__NEXT_PUBLIC_ELECTRIC_URL__",
+    process.env.NEXT_PUBLIC_ELECTRIC_URL || "http://localhost:5133",
+  ],
+  [
+    "__NEXT_PUBLIC_FASTAPI_BACKEND_AUTH_TYPE__",
+    process.env.NEXT_PUBLIC_FASTAPI_BACKEND_AUTH_TYPE || "LOCAL",
+  ],
+  [
+    "__NEXT_PUBLIC_ETL_SERVICE__",
+    process.env.NEXT_PUBLIC_ETL_SERVICE || "DOCLING",
+  ],
+  [
+    "__NEXT_PUBLIC_DEPLOYMENT_MODE__",
+    process.env.NEXT_PUBLIC_DEPLOYMENT_MODE || "self-hosted",
+  ],
+  [
+    "__NEXT_PUBLIC_ELECTRIC_AUTH_MODE__",
+    process.env.NEXT_PUBLIC_ELECTRIC_AUTH_MODE || "insecure",
+  ],
+];
+
+let filesProcessed = 0;
+let filesModified = 0;
+
+function walk(dir) {
+  let entries;
+  try {
+    entries = fs.readdirSync(dir, { withFileTypes: true });
+  } catch {
+    return;
+  }
+  for (const entry of entries) {
+    const full = path.join(dir, entry.name);
+    if (entry.isDirectory()) {
+      walk(full);
+    } else if (entry.name.endsWith(".js")) {
+      filesProcessed++;
+      let content = fs.readFileSync(full, "utf8");
+      let changed = false;
+      for (const [placeholder, value] of replacements) {
+        if (content.includes(placeholder)) {
+          content = content.replaceAll(placeholder, value);
+          changed = true;
+        }
+      }
+      if (changed) {
+        fs.writeFileSync(full, content);
+        filesModified++;
+      }
+    }
+  }
+}
+
+console.log("[entrypoint] Replacing environment variable placeholders...");
+for (const [placeholder, value] of replacements) {
+  console.log(`  ${placeholder} -> ${value}`);
+}
+
+walk(path.join(__dirname, ".next"));
+
+const serverJs = path.join(__dirname, "server.js");
+if (fs.existsSync(serverJs)) {
+  let content = fs.readFileSync(serverJs, "utf8");
+  let changed = false;
+  filesProcessed++;
+  for (const [placeholder, value] of replacements) {
+    if (content.includes(placeholder)) {
+      content = content.replaceAll(placeholder, value);
+      changed = true;
+    }
+  }
+  if (changed) {
+    fs.writeFileSync(serverJs, content);
+    filesModified++;
+  }
+}
+
+console.log(
+  `[entrypoint] Done. Scanned ${filesProcessed} files, modified ${filesModified}.`
+);