haproxy.ctmpl

frontend books-ms-fe
    bind *:80
    option http-server-close
    acl url_books-ms path_beg /api/v1/books
    use_backend books-ms-be if url_books-ms

backend books-ms-be
    {{range service "books-ms" "any"}}
    server {{.Node}}_{{.Port}} {{.Address}}:{{.Port}} check
    {{end}}