Read also global config in server backend.

The configuration file etc/config.yaml is exposed to the
server backend under require('configuration').global.

Note that at some point it will probably make sense to
merge the two config files.

lib/www/server/lib/config.js

@@ -1,9 +1,11 @@
 const fs = require('fs');
 const path = require('path');
 const crypto = require('crypto');
+const YAML = require('yaml');
 
 const cfgPrefix = process.env.DOUGAL_ROOT || ((process.env.HOME || ".") + "/software");
 const cfgPath = process.env.DOUGAL_API_CONFIG || (cfgPrefix+"/etc/www/config.json");
+const globalCfgPath = cfgPrefix+"/etc/config.yaml";
 
 let config = {}
 
@@ -51,6 +53,13 @@ try {
 		}
 
 	}
+
+	if (fs.existsSync(globalCfgPath)) {
+		const text = fs.readFileSync(globalCfgPath, 'utf8');
+		if (text) {
+			config.global = YAML.parse(text);
+		}
+	}
 } catch (err) {
 	console.error(err);
 }

lib/www/server/package-lock.json

@@ -613,6 +613,11 @@
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
       "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
+    },
+    "yaml": {
+      "version": "2.0.0-0",
+      "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.0.0-0.tgz",
+      "integrity": "sha512-+n+AwzE2hK2j21p36UB2foND6RYQU4PQkdPCK4YF2OKz8BbiNI+NvKS79CpyDChw3k/0L9jnChkjEzKoiu2C7w=="
     }
   }
 }

lib/www/server/package.json

@@ -13,6 +13,7 @@
     "express": "^4.17.1",
     "express-jwt": "^6.0.0",
     "jsonwebtoken": "^8.5.1",
-    "pg": "^8.3.0"
+    "pg": "^8.3.0",
+    "yaml": "^2.0.0-0"
   }
 }