http:
    host: 0.0.0.0
transport:
    host: 127.0.0.1
xpack:
    security:
        enabled: false
        authc:
            anonymous:
                roles:
                  - role1
                  - role2
cluster:
    routing:
        allocation:
            disk:
                watermark:
                    low: 0.90
                    high: 0.95