Saltstack use Tutorial (iii): Scheduled task management

Let's start with an example of adding a task:

Note: Although you can create a delete here, but the author does not recommend such use, management complex, recommended the bottom of the file Management Timing task method

/usr/sbin/ntpdate pool.ntp.org >>/dev/null 2>&1:  cron.present:     - user: root    - minute: 10[[email protected]  base]# salt  ' saltstack-node2.example.com '  state.highstatesaltstack-node2.example.com:---- ------          id: /usr/sbin/ntpdate pool.ntp.org  >>/dev/null 2>&1    Function: cron.present       result: true     comment: cron /usr/sbin/ntpdate  pool.ntp.org >>/dev/null 2>&1 added to root ' s crontab      started: 13:15:35.375887    duration: 68.023 ms      Changes:                 ----------              root:                   /usr/sbin/ Ntpdate pool.ntp.org >>/dev/null 2>&1summary------------succeeded: 1  ( changed=1) failed:    0------------total states run:      1

Annotations:

Minute #分钟hour #小时daymonth #日month #月dayweek #0 is Monday to Saturday, Sunday is 7

default Execution User "Root", the time is not filled by default is"*",Cycle Execution "*/2",Random Execution "Random",identifieris atask identifiers, similar to tasksID, specifying an identifier when changing a task makes it easy to modify.

You can use it now . Salt View Scheduled Tasks

[Email protected]e1~]# Salt ' saltstack-node2.example.com ' Cron.raw_cron root

saltstack-node2.example.com: # Lines Below here is managed by Salt, does not edit # Salt_cron_identifier:sync_time */10 * * * */usr/sbin/ntpdate pool.ntp.org >>/dev/null 2>&1

Delete a scheduled task

If you want to add a " echo "Test" "The timing task, the results found added wrong

[[Email protected]~]# Salt ' * ' cron.set_job root ' 1 ' * ' * ' * ' * ' * ' echo ' test '

Saltstack-node2.example.com:newsaltstack-node1.example.com:newyou have new mail in/var/spool/mail/root

[Email protected]~]# Salt ' * ' Cron.raw_cron root

saltstack-node1.example.com: * * * * * */usr/sbin/ntpdate pool.ntp.org # Lines Below here is managed by Salt, do no  T edit # test 1 * * * * echosaltstack-node2.example.com: # Lines Below here is managed by Salt, does not edit #    Salt_cron_identifier:sync_time */10 * * * */usr/sbin/ntpdate pool.ntp.org >>/dev/null 2>&1 # Test 1 * * * * echo

need to write like this                        

Salt ' target ' cron.rm_job user ${my_cron} ${exec_crondtion}

[Email protected]~]# Salt ' saltstack-node2.example.com ' cron.rm_job root echo minute= ' 1 '

Saltstack-node2.example.com:

Removed

[Email protected]~]# Salt ' * ' Cron.raw_cron root

saltstack-node1.example.com: # Lines Below here is managed by Salt, does not edit # test 1 * * * echosaltstack-n  ode2.example.com: # Lines Below here is managed by Salt, does not edit # salt_cron_identifier:sync_time */10 * * */usr/sbin/ntpdate pool.ntp.org >>/dev/null 2>&1 Note: Although this can be deleted, but the author does not recommend this use, recommend the following file Management Timing task method

Tips for file management Scheduled tasks:

in the Linux everything in it, CentOS Next is /var/spool/cron/ The corresponding file name is the user's scheduled task

You can manage the tasks by managing these files, but be sure to note the file permissions and the owner.

warning: Span style= "FONT-FAMILY:CALIBRI;FONT-SIZE:9PT;" lang= "en-us" xml:lang= "en-US" >salt management will completely overwrite all the contents of the original configuration, so use it with caution.

View the form of a timed task: [[email protected] ~]# cd /var/spool/cron/[[email protected] cron]#  LSBAI  ROOT[[EMAIL PROTECTED] CRON]# LLTOTAL 8-RW------- 1 bai   bai   22 sep 30 15:17 bai    # This is Bai this user's scheduled task file, 600 permissions-rw------- 1 root root 146 sep 30 14:56 root   Write state file below [[email protected] crontab]# vim test.sls/var/spool/cron/bai:   File.managed:    - source: salt://crontab/files/saltstack-node2.example.com.bai     - mode: 600    - user: bai     - group: bai      execution status [[Email protected] crontab]# salt   ' saltstack-node2.example.com '  state.highstatesaltstack-node2.example.com:----------           id: /var/spool/cron/bai    function: file.managed       result: true     comment: file /var/spool/cron/bai  updated     started: 15:40:33.193250    duration:  57.914 ms     Changes:                 ----------               diff:                   ---                    +++                    @@ -1,0 +1,1 @@                   +* * * * * echo  "hello  World " summary------------succeeded: 1  (changed=1) failed:    0------------ Total states run:     1 viewing timed tasks created [[email protected] crontab]#  salt  ' saltstack-node2.example.com '  cron.raw_cron baisaltstack-node2.example.com:     * * * * * echo  "Hello world" you have new  Mail in /var/spool/mail/root

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Saltstack use Tutorial (iii): Scheduled task management