feat: add ability to support additional gateway/domain (defenseunicor…

…ns#115) (#18)

Co-authored-by: Joel McCoy <joel@defenseunicorns.com>
Co-authored-by: Clint <catsby@users.noreply.github.com>

chart/templates/nginx.yaml

@@ -14,6 +14,9 @@ data:
             hostnames;  
             *.admin.uds.dev backend_admin;
             *.uds.dev backend_tenant;
+            {{- if .Values.customGateway | default false}}
+            *.{{ .Values.customGateway.domainName }} backend_custom_gateway;
+            {{- end }}
         }
 
         upstream backend_admin {
@@ -24,6 +27,12 @@ data:
             server ###ZARF_VAR_BASE_IP###.201:443; 
         }
 
+        {{- if .Values.customGateway | default false}}
+        upstream backend_custom_gateway {
+            server ###ZARF_VAR_BASE_IP###.202:443;
+        }
+        {{- end }}
+
         server {
             listen 443;
             proxy_pass $selected_upstream;

chart/values.yaml

@@ -7,3 +7,7 @@ coreDnsOverrides: |
   rewrite stop {
     name regex (.*\.uds\.dev) tenant-ingressgateway.istio-tenant-gateway.svc.cluster.local answer auto
   }
+
+# Enable the following to use a custom gateway
+# customGateway:
+#   domainName: uds2.dev

docs/DNS.md

@@ -28,3 +28,14 @@ uds run --set COREDNS_OVERRIDES="$COREDNS_OVERRIDES"
 ## Nginx Configuration
 
 Additionally, the package includes Nginx configuration that assumes the use of `uds.dev` as the base domain. This configuration is tailored to support the development environment setup, ensuring that Nginx correctly handles requests and routes them within the cluster, based on the `uds.dev` domain.
+
+### Nginx Additional Gateway Support
+
+You can add an additional Gateway to the Nginx configuration by overriding the helm value `customGateway.domainName` with the desired domain name.
+
+For example, to add a custom gateway with the domain `uds2.dev` you would add the following helm overrides for the `uds-dev-stack` chart:
+
+```yaml
+customGateway:
+  domainName: uds2.dev
+```