adding search to docs (#8906)

website/script/fix-path.js

@@ -60,6 +60,13 @@ try {
       return match + `<meta name="docsearch:version" content="${druidVersion}" />`;
     },
   });
+  replace.sync({
+    files: './build/ApacheDruid/docs/**/*.html',
+    from: /"version:druidVersion"/g,
+    to: (match, fullText) => {
+      return `"version:${druidVersion}"`;
+    },
+  });
 
   console.log('Fixed versions');
 

website/siteConfig.js

@@ -102,6 +102,17 @@ const siteConfig = {
 
   editUrl: 'https://github.com/apache/incubator-druid/edit/master/docs/',
 
+  algolia: {
+    apiKey: '2de99082a9f38e49dfaa059bbe4c901d',
+    indexName: 'apache_druid',
+    algoliaOptions: {
+      facetFilters: [
+        "language:LANGUAGE",
+        "version:druidVersion",
+      ]
+    },
+  },
+
   // Show documentation's last contributor's name.
   // enableUpdateBy: true,