added example

examples/loadbalancertest/config.yaml

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+healthcheck_addr: "10.0.1.10:9000"
+
+iperf_addr: "10.0.1.10:5201"
+
+backends:
+  - id: "srv-1"
+    ip: "10.0.1.11:8081"
+  - id: "srv-2"
+    ip: "10.0.1.12:8082"
+  - id: "srv-3"
+    ip: "10.0.1.13:8083"
+  - id: "srv-4"
+    ip: "10.0.1.14:8084"
+
+clusters:
+  main-api:
+    - "srv-1"
+    - "srv-2"
+  priority-api:
+    - "srv-3"
+    - "srv-4"
+
+rules:
+  - clients:
+      - "0.0.0.0/0:8080"
+    targets:
+      - "main-api"
+    strategy:
+      type: "RoundRobin"
+
+  - clients:
+      - "10.0.0.0/24:8080"
+      - "10.0.0.0/24:25565"
+    targets:
+      - "main-api"
+      - "priority-api"
+    strategy:
+      type: "RoundRobin"

examples/loadbalancertest/docker-compose.yml

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+services:
+  load-balancer:
+    image: enginewhy
+    container_name: load-balancer
+    tty: true
+    cap_add:
+      - NET_ADMIN
+      - SYS_ADMIN
+    volumes:
+      - ./config.yaml:/enginewhy/config.yaml
+    networks:
+      net_1:
+        ipv4_address: 10.0.1.10
+      net_2:
+        ipv4_address: 10.0.0.10
+      net_3:
+        ipv4_address: 10.0.2.10
+
+  srv-1:
+    image: nicolaka/netshoot
+    container_name: srv-1
+    tty: true
+    command: ["python3", "-m", "http.server", "8081", "--directory", "/root/www"]
+    networks:
+      net_1:
+        ipv4_address: 10.0.1.11
+    ports:
+      - "8081:8081"
+    volumes:
+      - ./srv1:/root/www
+    cap_add: [ NET_ADMIN ]
+
+  srv-2:
+    image: nicolaka/netshoot
+    container_name: srv-2
+    tty: true
+    command: ["python3", "-m", "http.server", "8082", "--directory", "/root/www"]
+    networks:
+      net_1:
+        ipv4_address: 10.0.1.12
+    ports:
+      - "8082:8082"
+    volumes:
+      - ./srv2:/root/www
+    cap_add: [ NET_ADMIN ]
+
+  srv-3:
+    image: nicolaka/netshoot
+    container_name: srv-3
+    tty: true
+    command: ["python3", "-m", "http.server", "8083", "--directory", "/root/www"]
+    networks:
+      net_1:
+        ipv4_address: 10.0.1.13
+    ports:
+      - "8083:8083"
+    volumes:
+      - ./srv3:/root/www
+    cap_add: [ NET_ADMIN ]
+
+  srv-4:
+    image: nicolaka/netshoot
+    container_name: srv-4
+    tty: true
+    command: ["python3", "-m", "http.server", "8084", "--directory", "/root/www"]
+    networks:
+      net_1:
+        ipv4_address: 10.0.1.14
+    ports:
+      - "8084:8084"
+    volumes:
+      - ./srv4:/root/www
+    cap_add: [ NET_ADMIN ]
+
+  client-net2:
+    image: nicolaka/netshoot
+    container_name: client-net2
+    tty: true
+    networks:
+      net_2:
+        ipv4_address: 10.0.0.11
+    cap_add: [ NET_ADMIN ]
+
+  client-net3:
+    image: nicolaka/netshoot
+    container_name: client-net3
+    tty: true
+    networks:
+      net_3:
+        ipv4_address: 10.0.2.11
+    cap_add: [ NET_ADMIN ]
+
+networks:
+  net_1:
+    driver: bridge
+    ipam:
+      config:
+        - subnet: 10.0.1.0/24
+
+  net_2:
+    driver: bridge
+    ipam:
+      config:
+        - subnet: 10.0.0.0/24
+
+  net_3:
+    driver: bridge
+    ipam:
+      config:
+        - subnet: 10.0.2.0/24

examples/loadbalancertest/srv1/index.html

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+Hello from server 1!

examples/loadbalancertest/srv2/index.html

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+Hello from server 2!

examples/loadbalancertest/srv3/index.html

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+Hello from server 3!

examples/loadbalancertest/srv4/index.html

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+Hello from server 4!