实例学习ansible系列（11）常用模块之get_url/cron/synchronize

知识点：cron模块用于管理对象节点cron任务
知识点：get_url模块类似于wget和curl的功能，可以进行下载以及webapi交互等操作
知识点：synchronize模块使用rsync用于控制节点和管理对象节点之间的内容同步操作。

cron模块使用实例

事前对象节点cron信息确认

[root@host31 ~]# ansible host32 -m shell -a "crontab -l"host32 | SUCCESS | rc=0 >>10 * * * * echo `date` >> /tmp/cronlog.log[root@host31 ~]#

利用cron模块向对象节点添加一个叫做sayhellojob的一个无聊job，此job每2分钟说一次hello

[root@host31 ~]# ansible host32 -m cron -a 'name=sayhellojob minute=*/2 hour=* day=* month=* weekday=* job="echo hello `date` >> /tmp/cronlog.log"'host32 | SUCCESS => {    "changed": true,    "envs": [],    "jobs": [        "sayhellojob"    ]}[root@host31 ~]#

事后对象节点的crontab内容

[root@host31 ~]# ansible host32 -m shell -a "crontab -l"host32 | SUCCESS | rc=0 >>10 * * * * echo `date` >> /tmp/cronlog.log#Ansible: sayhellojob  ->jobname是作为注释管理的*/2 * * * * echo hello `date` >> /tmp/cronlog.log[root@host31 ~]#

事后输出log的确认

[root@host31 ~]# ansible host32 -m shell -a "cat /tmp/cronlog.log"host32 | SUCCESS | rc=0 >>hello Sat Jul 30 19:06:01 EDT 2016hello Sat Jul 30 19:08:01 EDT 2016Sat Jul 30 19:10:01 EDT 2016hello Sat Jul 30 19:10:01 EDT 2016hello Sat Jul 30 19:12:02 EDT 2016hello Sat Jul 30 19:14:01 EDT 2016hello Sat Jul 30 19:16:01 EDT 2016hello Sat Jul 30 19:18:01 EDT 2016hello Sat Jul 30 19:20:01 EDT 2016[root@host31 ~]#

get_url使用实例

使用get_url下载baidu的index

[root@host31 ~]# ansible host31 -m get_url -a "url=http://www.baidu.com dest=/tmp"host31 | SUCCESS => {    "changed": true,    "checksum_dest": null,    "checksum_src": "2fccd8d95deeee8058575bd727057f56bde82875",    "dest": "/tmp/index.html",    "gid": 0,    "group": "root",    "md5sum": "903a4edc8fef9db948f2fb5533a66f6c",    "mode": "0644",    "msg": "OK (unknown bytes)",    "owner": "root",    "secontext": "unconfined_u:object_r:user_tmp_t:s0",    "size": 99451,    "src": "/tmp/tmp84dCzW",    "state": "file",    "uid": 0,    "url": "http://www.baidu.com"}[root@host31 ~]#

下载确认

[root@host31 ~]# ll /tmp/index.html-rw-r--r--. 1 root root 99451 Jul 30 19:35 /tmp/index.html[root@host31 ~]#

synchronize使用实例

同步内容准备和确认

[root@host31 ~]# mkdir -p /tmp/tst-syn /tmp/tst-syn/src /tmp/tst-syn/target /tmp/tst-syn/target/bin[root@host31 ~]# echo "hello" > /tmp/tst-syn/target/bin/hello[root@host31 ~]#[root@host31 ~]# ssh host32 ls -l /opttotal 0drwxr-xr-x. 2 root root 6 Mar 26  2015 rh[root@host31 ~]#

将此目录结构完整同步到对象机器的/opt下

[root@host31 ~]# ansible host32 -m synchronize -a "src=/tmp/tst-syn dest=/opt/dst-syn"host32 | SUCCESS => {    "changed": true,    "cmd": "/usr/bin/rsync --delay-updates -F --compress --archive --rsh 'ssh  -S none -o StrictHostKeyChecking=no' --out-format='<<CHANGED>>%i %n%L' \"/tmp/tst-syn\" \"host32:/opt/dst-syn\"",    "msg": "cd+++++++++ tst-syn/\ncd+++++++++ tst-syn/src/\ncd+++++++++ tst-syn/target/\ncd+++++++++ tst-syn/target/bin/\n<f+++++++++ tst-syn/target/bin/hello\n",    "rc": 0,    "stdout_lines": [        "cd+++++++++ tst-syn/",        "cd+++++++++ tst-syn/src/",        "cd+++++++++ tst-syn/target/",        "cd+++++++++ tst-syn/target/bin/",        "<f+++++++++ tst-syn/target/bin/hello"    ]}[root@host31 ~]#

同步后确认

[root@host31 ~]# ssh host32 ls -l /opttotal 0drwxr-xr-x. 3 root root 20 Jul 30 19:44 dst-syndrwxr-xr-x. 2 root root  6 Mar 26  2015 rh[root@host31 ~]# ssh host32 find /opt/dst-syn -type f/opt/dst-syn/tst-syn/target/bin/hello[root@host31 ~]# ssh host32 find /opt/dst-syn -type d/opt/dst-syn/opt/dst-syn/tst-syn/opt/dst-syn/tst-syn/src/opt/dst-syn/tst-syn/target/opt/dst-syn/tst-syn/target/bin[root@host31 ~]#