时间同步 ntp

yum -y install ntp

# ceph-k8s-01
$ vi /etc/ntp.conf
driftfile /var/lib/ntp/drift
restrict default nomodify notrap nopeer noquery
restrict 127.0.0.1
restrict ::1
restrict 172.20.5.0 mask 255.255.255.0 nomodify notrap        # 添加可以同步时间的网段
server 127.127.1.0                                            # 外部时间服务器不可用时, 以本地时间作为时间服务
Fudge 127.127.1.0 stratum 10
includefile /etc/ntp/crypto/pw
keys /etc/ntp/keys
disable monitor
# ceph-k8s-02和ceph-k8s-03，同步ceph-k8s-01
$ vi /etc/ntp.conf
server 172.20.5.25 iburst minpoll 4 maxpoll 10

systemctl start ntpd

systemctl enable ntpd