Linux云计算学习笔记day39
for n in {1..10} ;
do
echo $n ;
done
i的初始化 ;i<=10 条件;i++
从1开始每次增加1 大于10的时候结束循环
for((i=1;i<=10;i++))
do
echo $i
done
每5分钟同步系统时间
*/5 * * * * ntpdate ntp1.aliyun.com >>/tmp/ntpdate.log 2>&1
* * * * * ntpdate ntp1.aliyun.com >>/tmp/ntpdate.log 2>&1
#sync time
*/5 * * * * /sbin/ntpdate ntp1.aliyun.com >/dev/null 2>&1
定时任务中 识别PATH环境变量默认 /usr/bin和/bin
定时任务模块 cron
#sync time
*/5 * * * * /sbin/ntpdate ntp1.aliyun.com >/dev/null 2>&1.
ansible all -m yum -a 'name=ntpdate state=present'
ansible all -m cron -a 'name="sync time" minute="*/5" job="/sbin/ntpdate ntp1.aliyun.com >/dev/null 2>&1"'
#ansible all -m cron -a 'name="zwav time" state=absent '
ansible 172.16.1.7 -m mount -a "src=172.16.1.31:/data path=/backup fstype=nfs opts=defaults state=present"
#nfs01
/nfs 172.16.1.0/24(rw,all_squash,anonuid=888,anongid=888)
[root@nfs01 ~]# showmount -e 172.16.1.31
Export list for 172.16.1.31:
/nfs 172.16.1.0/24
/upload 172.16.1.0/24
#web01 把nfs01 共享的/nfs 挂载到 /upload
/upload
[root@m01 ~]# #mount -t nfs 172.16.1.31:/nfs /upload
[root@m01 ~]# ansible 172.16.1.7 -m mount -a 'fstype=nfs src=172.16.1.31:/nfs path=/upload state=mounted'
172.16.1.7 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"dump": "0",
"fstab": "/etc/fstab",
"fstype": "nfs",
"name": "/upload",
"opts": "defaults",
"passno": "0",
"src": "172.16.1.31:/nfs"
}
[root@m01 ~]# ansible 172.16.1.7 -a 'df -h'
172.16.1.7 | CHANGED | rc=0 >>
Filesystem Size Used Avail Use% Mounted on
172.16.1.31:/nfs 99G 1.7G 98G 2% /upload
[root@m01 ~]# ansible 172.16.1.7 -a 'grep upload /etc/fstab'
172.16.1.7 | CHANGED | rc=0 >>
172.16.1.31:/nfs /upload nfs defaults 0 0
#playbook
[root@m01 /etc/ansible]# cat touch.yml
---
- hosts: all
tasks:
- name: make av
command: mkdir -p /tmp/a/b/c/d/e/f/g/
ansible-playbook -C touch.yml
ansible-playbook touch.yml
[root@m01 /etc/ansible]# ansible all -a 'crontab -l'
172.16.1.7 | CHANGED | rc=0 >>
#backup
00 00 * * * sh /server/scripts/bak.sh >/dev/null 2>&1
#Ansible: sync time
*/5 * * * * /sbin/ntpdate ntp1.aliyun.com >/dv/null 2>&1
172.16.1.41 | CHANGED | rc=0 >>
#Ansible: sync time
*/5 * * * * /sbin/ntpdate ntp1.aliyun.com >/dv/null 2>&1
[root@m01 /etc/ansible]# cat cron-time.yml
---
- hosts: all
tasks:
- name: sync time
cron: name="sync time" minute="*/5" job="/sbin/ntpdate ntp1.aliyun.com >/dv/null 2>&1" state=present
#ansible实现 部署nfs服务 及在web01 web02 挂载 playbook
#!/bin/bash
#one key install nfs
#package install?
yum install -y rpcbind nfs-utils
#configure
cp /etc/exports{,.bak}
cat >/etc/exports<<EOF
#nfs01
/nfs 172.16.1.0/24(rw,all_squash)
EOF
#dir owner
mkdir -p /nfs
chown nfsnobody.nfsnobody /nfs
#start rpcbind nfs
systemctl start rpcbind nfs
systemctl enable rpcbind nfs
##部署nfs服务
