Merge pull request #7078 from Countly/ar2rsawseen/newarch

Allow extending countly settings through env variables

Author: ar2rsawseen

plugins/pluginManager.js

@@ -383,12 +383,39 @@ var pluginManager = function pluginManager() {
     * @param {function} onchange - function to call when configurations change
     **/
     this.setConfigs = function(namespace, conf, exclude, onchange) {
+        // Apply environment variable overrides before setting defaults
+        var processedConf = {};
+        for (let key in conf) {
+            if (!Object.prototype.hasOwnProperty.call(conf, key)) {
+                continue;
+            }
+            // Check for environment variable: COUNTLY_SETTINGS__NAMESPACE__KEY
+            var envVarName = 'COUNTLY_SETTINGS__' + namespace.toUpperCase() + '__' + key.toUpperCase();
+            if (process.env[envVarName] !== undefined) {
+                var envValue = process.env[envVarName];
+                // Try to parse as JSON first (for objects, arrays, booleans, numbers)
+                try {
+                    processedConf[key] = JSON.parse(envValue);
+                }
+                catch (e) {
+                    // If parsing fails, use as string
+                    processedConf[key] = envValue;
+                }
+            }
+            else {
+                processedConf[key] = conf[key];
+            }
+        }
+
         if (!defaultConfigs[namespace]) {
-            defaultConfigs[namespace] = conf;
+            defaultConfigs[namespace] = processedConf;
         }
         else {
-            for (let i in conf) {
-                defaultConfigs[namespace][i] = conf[i];
+            for (let i in processedConf) {
+                if (!Object.prototype.hasOwnProperty.call(processedConf, i)) {
+                    continue;
+                }
+                defaultConfigs[namespace][i] = processedConf[i];
             }
         }
         if (exclude) {