Kubernetes On-Premisse External Load Balancer with Nginx
- Environment Variables
| Name | Description | Example |
|---|---|---|
| SERVER_NAME | DNS of Load Balancer | k8s-cluster.acme.com |
| PORT | Port that nginx container will listen | 80 |
| SERVICE_PORT | K8s service port | 3000 |
| NODE_{NUMBER} | Nodes IPs, define as many node IPs as you want (must follow order starting by 1) | 10.0.0.10 |
-
Example:
-
K8s cluster exposed service running on port 30115
-
3 Nodes, 192.168.0.108 - 192.168.0.109 - 192.168.0.110
docker run -it -p 80:80 \ -e "SERVER_NAME=k8s-cluster.acme.com" \ -e "PORT=80" \ -e "SERVICE_PORT=30115" \ -e "NODE_1=192.168.0.108" \ -e "NODE_2=192.168.0.109" \ -e "NODE_3=192.168.0.110" \ m4n3dw0lf/k8slb -
-
Output:
LoadBalancer DNS: k8s-cluster.acme.com
LoadBalancer Port: 80
K8s Service Port: 30115
Adding Node: 192.168.0.108
Adding Node: 192.168.0.109
Adding Node: 192.168.0.110
LoadBalancer Configured Successfully!