Update server configs to read ENV-VARS

README.md

@@ -59,4 +59,19 @@ To run this server you will need:
      - utils -> Provide utility functions that can be called by services.
      - configs -> Provide configuration details for other files.
      - static -> Holds files for static service, should be hosted behind a caching proxy.
+
+## Configuration:
+The app is designed to be run within Kubernetes or within a Docker container, as such configuration is provided with environment variables.  See the variable name and default options below.  If a required configuration is not present the program will exit.
+
+|VAR|DEFAULT|REQUIRED|PURPOSE|
+|:-:|:-----:|:------:|:-----:|
+|OWL_SRV_PORT|8460|NO|Web Server Port|
+|OWL_SRV_LISTEN|0.0.0.0|NO|Web Server Listen Address|
+|OWL_DB_USER||YES|Database Username|
+|OWL_DB_PASS||YES|Database Password|
+|OWL_DB_NAME||YES|Database Name|
+|OWL_DB_PORT||YES|Database Server Port|
+|OWL_DB_HOST||YES|Database Server Host|
+|OWL_LDB_KEY||YES|National Rail LDBWS API Key|
+|OWL_LDB_SVKEY||NO|National Rail LDBSVWS API Key|
      

src/configs/database.configs.js

@@ -1,3 +1,9 @@
+OWL_DB_USER
+OWL_DB_PASS
+OWL_DB_NAME
+OWL_DB_PORT
+OWL_DB_HOST
+
 const database = {
     user: 'owlboard',
     password: 'owlboard',

src/configs/server.configs.js

@@ -1,6 +1,26 @@
+function getPort(){
+    if (process.env.OWL_SRV_PORT){
+        var confPort = process.env.OWL_SRV_PORT;
+    } else {
+        var confPort = 8460;
+    };
+    return Number(confPort);
+}
+
+function getListen(){
+    if (process.env.OWL_SRV_LISTEN){
+        var confListen = process.env.OWL_SRV_LISTEN;
+    } else {
+        var confListen = "0.0.0.0"
+    }
+    return confListen;
+}
+
 const server = {
-    port: 8460,
+    port: getPort(),
-    listen: "localhost"
+    listen: getListen()
 };
 
-module.exports = server;
+module.exports = {
+    server
+}