add single cluster config

Author: chrisakker

docs/http/http-installation-guide.md

@@ -207,6 +207,12 @@ This can be any standard Linux OS system, based on the Linux Distro and Technica
 
       >NOTE:  This Solution will only work with NGINX Plus, as NGINX OpenSource does not have the API that is used in this Solution.  Installation on unsupported Linux Distros is not recommended.
 
+  1. Install the NGINX Javascript module (njs).  This is required for exporting Prometheus Metrics from NGINX Plus.
+  
+  ```bash
+  yum install nginx-plus-module-njs
+  ```
+
   1. If you need a license for NGINX Plus, a 30-day Trial license is available here:
 
       https://www.nginx.com/free-trial-request/
@@ -1081,6 +1087,20 @@ Here are the instructions to run 2 Docker containers on a Monitor Server, which
 
 <br/>
 
+## References ##
+
+[NGINX Ingress Controller](https://docs.nginx.com/nginx-ingress-controller/)
+[NGINX Cafe Demo](https://github.com/nginxinc/kubernetes-ingress/tree/main/examples/ingress-resources/complete-example)
+[Installing NGINX Plus](https://docs.nginx.com/nginx/admin-guide/installing-nginx/installing-nginx-plus/)
+[NGINX Loadbalancer for Kubernetes Overview](https://github.com/nginxinc/nginx-loadbalancer-kubernetes/tree/main/docs)
+[NGINX Split Clients Module](https://nginx.org/en/docs/http/ngx_http_split_clients_module.html)
+[NGINX Dynamic Split Clients Blog](https://www.nginx.com/blog/dynamic-a-b-testing-with-nginx-plus/)
+[NGINX njs Module](https://docs.nginx.com/nginx/admin-guide/dynamic-modules/nginscript/)
+[Prometheus](https://prometheus.io/)
+[Grafana](https://grafana.com/)
+
+<br/>
+
 ## Authors
 - Chris Akker - Solutions Architect - Community and Alliances @ F5, Inc.
 - Steve Wagner - Solutions Architect - Community and Alliances @ F5, Inc.

docs/http/single-cluster.conf

@@ -0,0 +1,52 @@
+# NGINX Loadbalancer for K8s HTTP configuration, for L7 load balancing
+# Chris Akker, Oct 2023
+# HTTP Proxy and load balancing
+# Single Cluster Load Balancing 
+# Upstream servers managed by NLK Controller
+#
+#### single-clusters.conf
+
+# Main Nginx Server Block for cafe.example.com, with TLS
+
+server {
+   listen 443 ssl;
+   status_zone https://cafe.example.com;
+   server_name cafe.example.com;
+   
+   ssl_certificate /etc/ssl/nginx/default.crt;  # self-signed for example only
+   ssl_certificate_key /etc/ssl/nginx/default.key;
+   
+   location / {
+   status_zone /;
+   
+   proxy_set_header Host $host;
+   proxy_http_version 1.1;
+   proxy_set_header   "Connection" "";
+   proxy_pass https://cluster1-https;
+   
+   }
+
+   location @health_check_cluster1_cafe {
+
+   health_check interval=10 match=cafe;
+   proxy_connect_timeout 2s;
+   proxy_read_timeout 3s;
+   proxy_set_header Host cafe.example.com;
+   proxy_pass https://cluster1-https;
+   }
+ 
+}
+
+match cafe {
+  status 200-399;
+  }
+
+# Cluster1 upstreams
+
+upstream cluster1-https {
+   zone cluster1-https 256k;
+   least_time last_byte;
+   keepalive 16;
+   #servers managed by NLK Controller
+   state /var/lib/nginx/state/cluster1-https.state; 
+}