use environment varaibles

Author: ahmednoureldeen

.env

@@ -0,0 +1,7 @@
+AUTH0_SECRET=<secret_key>
+
+DB_HOST=db
+DB_PORT=5432
+DB_USER=postgres
+DB_PASS=<password>
+DB_NAME=map_egypt

knexfile.js

@@ -13,7 +13,14 @@ module.exports = {
   },
   development: {
     client: 'pg',
-    connection: process.env.DATABASE_URL,
+    //connection: process.env.DATABASE_URL,
+    connection: {
+	  host: process.env.DB_HOST,
+	  user: process.env.DB_USER,
+	  port: process.env.DB_PORT,
+	  password: process.env.DB_PASS,
+	  database: process.env.DB_NAME
+	},
     migrations: {
       tableName: 'migrations'
     },