InstanceInfoBuilder securePort(int securePort) {
        checkArgument(securePort > 0, "securePort: %s (expected: > 0)", securePort);
        this.securePort = new PortWrapper(true, securePort);
        return this;
    }
Sets the port used for {@link SessionProtocol#HTTPS}.
eureka/src/main/java/com/linecorp/armeria/server/eureka/InstanceInfoBuilder.java