vanilla_load_balancer

Load Balancer

Configure multi hosts on envoy

  clusters:
    - name: "cluster_example"
      connect_timeout: "1s"
      type: "strict_dns"
      lb_policy: "ROUND_ROBIN"
      hosts:

        - socket_address:
            address: "node_1"
            port_value: 8000

        - socket_address:
            address: "node_2"
            port_value: 8000

docker-compose build
docker-compose up --force-recreate

docker-compose up

curl http://0.0.0.0:8080/version

Test Service Load Balancing

while true; do curl localhost:8080/version; echo; done;

# ---
{"version":1,"node_version":"8.6.0"}
{"version":1,"node_version":"8.6.0"}
{"version":2,"node_version":"12.8.1"}
{"version":2,"node_version":"12.8.1"}
{"version":1,"node_version":"8.6.0"}
{"version":1,"node_version":"8.6.0"}
{"version":2,"node_version":"12.8.1"}
{"version":2,"node_version":"12.8.1"}
{"version":1,"node_version":"8.6.0"}
{"version":1,"node_version":"8.6.0"}
{"version":2,"node_version":"12.8.1"}
{"version":1,"node_version":"8.6.0"}
{"version":2,"node_version":"12.8.1"}
{"version":2,"node_version":"12.8.1"}
{"version":1,"node_version":"8.6.0"}
{"version":2,"node_version":"12.8.1"}