fix: change service schema key to target_host

Author: zenlex

SERVICES.md

@@ -6,7 +6,7 @@ To register a service with the gateway to make it available for use from the [Tu
 ```toml
 [services.name] # where 'name' is a unique kebab-case name for your service
 path="/myservice" # unique path the frontend will make a request to at /api[path]
-target_service="https://my-service.default.svc.cluster.local" # the host for the service
+target_host="https://my-service.default.svc.cluster.local" # the host for the service
 target_port=8080 # the target port for your service
 ```
 - add an entry for your service in the list below with a brief description of your service and a link to the documentation

src/config.rs

@@ -1,18 +1,18 @@
 use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
 use std::{fs::File, io::Read};
-use toml;
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
 pub struct ServiceConfig {
     pub path: String,
-    pub target_service: String,
+    pub target_host: String,
     pub target_port: u32,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
 pub struct GatewayConfig {
     pub auth_url: String,
-    pub services: Vec<ServiceConfig>,
+    pub services: HashMap<String, ServiceConfig>,
 }
 
 pub fn load_config(path: &str) -> GatewayConfig {