feat: config merge

packages/ui/certd-server/src/config/loader.ts

@@ -0,0 +1,26 @@
+import path from 'path';
+import _ from 'lodash';
+const yaml = require('js-yaml');
+const fs = require('fs');
+
+function parseEnv() {
+  const config = {};
+  for (const key in process.env) {
+    let keyName = key;
+    if (!keyName.startsWith('certd_')) {
+      continue;
+    }
+    keyName = keyName.replace('certd_', '');
+    const configKey = keyName.replace('_', '.');
+    _.set(config, configKey, process.env[key]);
+  }
+  return config;
+}
+
+export function load(env = '') {
+  // Get document, or throw exception on error
+  const yamlPath = path.join(process.cwd(), `.env.${env}.yaml`);
+  const doc = yaml.load(fs.readFileSync(yamlPath, 'utf8'));
+  _.merge(doc, parseEnv());
+  return doc;
+}