root@ubuntu-MesosMaster-Marathon:~# cat /etc/netplan/-cloud-init.yaml

# This file is generated from information provided by

# the datasource.  Changes to it will not persist across an instance.

# To disable cloud-init's network configuration capabilities, write a file

# /etc/cloud/cloud.cfg.d/-disable-network-config.cfg with the following:

# network: {config: disabled}

network:

    ethernets:

        ens33:

            addresses: [192.168.115.148/]

            gateway4: 192.168.115.2

            dhcp4: false

            nameservers:

                    addresses: [192.168.115.2]

    version: 

root@ubuntu-MesosMaster-Marathon:~# netplan apply

root@ubuntu-MesosMaster-Marathon:~# ping baidu.com

PING baidu.com (220.181.57.216) () bytes of data.

 bytes from 220.181.57.216 (220.181.57.216): icmp_seq= ttl= time=25.7 ms