Ansible常用模块介绍

1、 ansible-doc

希望知道更加详细的module的信息，最好的方法是使用ansible自带的ansible-doc的-s选项

[root@node1 ~]# ansible-doc -s raw- name: Executes a low-down and dirty SSH command  action: raw      executable             # change the shell used to execute the command. Should be an absolute path to the                               executable. when using privilege escalation                               (`become'), a default shell will be assigned if                               one is not provided as privilege escalation                               requires a shell.      free_form=             # the raw module takes a free form command to run. There is no parameter actually                               named 'free form'; see the examples![root@node1 ~]# [root@node1 ~]# ansible-doc -s shell- name: Execute commands in nodes.  action: shell      chdir                  # cd into this directory before running the command      creates                # a filename, when it already exists, this step will *not* be run.      executable             # change the shell used to execute the command. Should be an absolute path to the                               executable.      free_form=             # The shell module takes a free form command to run, as a string.  There's not an                               actual option named "free form".  See the                               examples!      removes                # a filename, when it does not exist, this step will *not* be run.      warn                   # if command warnings are on in ansible.cfg, do not warn about this particular                               line if set to no/false.[root@node1 ~]# [root@node1 ~]# ansible-doc -s command- name: Executes a command on a remote node  action: command      chdir                  # cd into this directory before running the command      creates                # a filename or (since 2.0) glob pattern, when it already exists, this step will                               *not* be run.      executable             # change the shell used to execute the command. Should be an absolute path to the                               executable.      free_form=             # the command module takes a free form command to run.  There is no parameter                               actually named 'free form'. See the examples!      removes                # a filename or (since 2.0) glob pattern, when it does not exist, this step will                               *not* be run.      warn                   # if command warnings are on in ansible.cfg, do not warn about this particular                               line if set to no/false.[root@node1 ~]# ansible localhost -m raw -a "echo hello"localhost | SUCCESS | rc=0 >>hello[root@node1 ~]#

2、 常用模块之command/shell/raw

使用模块 command或者shell或者raw都能调用对象机器上的某条指令或者某个可执行文

• command模块，执行远程命令
• script模块 ，在远程主机执行主控端的shell/python脚本
• shell模块 ，执行远程主机的shell/python脚本
• raw模块 ，类似于command模块、支持管道传递

（1）直接执行脚本

[root@node1 ~]# ansible 192.168.80.133 -m raw -a "/tmp/test.sh"192.168.80.133 | SUCCESS | rc=0 >>Mon Oct  2 08:52:08 EDT 2017Shared connection to 192.168.80.133 closed.[root@node1 ~]# ansible 192.168.80.133 -m shell -a "/tmp/test.sh"192.168.80.133 | SUCCESS | rc=0 >>Mon Oct  2 08:52:21 EDT 2017[root@node1 ~]# ansible 192.168.80.133 -m command -a "/tmp/test.sh"192.168.80.133 | SUCCESS | rc=0 >>Mon Oct  2 08:52:29 EDT 2017[root@node1 ~]#

（2） 是否支持管道

• command 不支持管道
• shell 支持管道
• raw 支持管道

[root@node1 ~]# ansible 192.168.80.133 -m shell -a "ps -ef |wc -l"192.168.80.133 | SUCCESS | rc=0 >>96[root@node1 ~]# ansible 192.168.80.133 -m raw -a "ps -ef |wc -l"192.168.80.133 | SUCCESS | rc=0 >>93Shared connection to 192.168.80.133 closed.[root@node1 ~]# ansible 192.168.80.133 -m command -a "ps -ef |wc -l"192.168.80.133 | FAILED | rc=1 >>error: garbage optionUsage: ps [options] Try 'ps --help <simple|list|output|threads|misc|all>'  or 'ps --help <s|l|o|t|m|a>' for additional help text.For more details see ps(1).[root@node1 ~]#

command不支持命令行通配符

[root@node1 ~]# ansible 192.168.80.133 -m command -a 'ls -l /tmp/*.sh'192.168.80.133 | FAILED | rc=2 >>ls: cannot access /tmp/*.sh: No such file or directory[root@node1 ~]# ansible 192.168.80.133 -m shell -a 'ls -l /tmp/*.sh'192.168.80.133 | SUCCESS | rc=0 >>-rwxr-xr-x 1 root root 17 Sep 28 10:49 /tmp/test.sh[root@node1 ~]# ansible 192.168.80.133 -m raw -a 'ls -l /tmp/*.sh'192.168.80.133 | SUCCESS | rc=0 >>-rwxr-xr-x 1 root root 17 Sep 28 10:49 /tmp/test.shShared connection to 192.168.80.133 closed.[root@node1 ~]#

2017-11-17 补充：

[root@hadron web_store]# ansible nb1 -m command -a "/etc/init.d/zookeeper-server status"nb1 | SUCCESS | rc=0 >>Mode: leaderZooKeeper JMX enabled by defaultUsing config: /etc/zookeeper/conf/zoo.cfg[root@hadron web_store]# ansible nb1 -m shell -a "/etc/init.d/zookeeper-server status"nb1 | SUCCESS | rc=0 >>Mode: leaderZooKeeper JMX enabled by defaultUsing config: /etc/zookeeper/conf/zoo.cfg[root@hadron web_store]# ansible nb1 -m raw -a "/etc/init.d/zookeeper-server status"nb1 | SUCCESS | rc=0 >>ZooKeeper JMX enabled by defaultUsing config: /etc/zookeeper/conf/zoo.cfgMode: leaderShared connection to nb1 closed.[root@hadron web_store]# 

3、 常用模块之copy

使用copy模块，可以实现向目标机器进行远程copy的能力。

参数 说明 src 被复制到远程主机的本地对象文件或者文件夹，可以是绝对路径，也可以是相对路径。 dest 被复制到远程主机的本地对象文件或者文件夹 mode 复制对象的设定权限 backup 在文件存在的时候可以选择覆盖之前，将源文件备份.设定值：yes/no 缺省为yes force 是否强制覆盖.设定值：yes/no 缺省为yes … 其余请自行ansible-doc -s copy

default的情况下，force是yes的，所以什么都不写，文件存在的情况是会被覆盖的

注意：
script模块 ，在远程主机执行主控端的shell/python脚本。也就是说 script模块实现了将主控节点的脚本复制到远程节点，然后在远程节点执行脚本。

[root@hadron ~]# cat /root/test/test.sh#!/bin/bashdatels /root[root@hadron ~]# ansible 192.168.1.161 -m script -a "/root/test/test.sh"192.168.1.161 | SUCCESS => {    "changed": true,     "rc": 0,     "stderr": "Shared connection to 192.168.1.161 closed.\r\n",     "stdout": "2017年 11月 03日 星期五 09:16:34 CST\r\nanaconda-ks.cfg  books.txt\t  scripts\ttest1\t       zsh_test.txt\r\nbooks.bak\t mapred-site.xml  sshKeyGen.sh\tyarn-site.xml\r\n",     "stdout_lines": [        "2017年 11月 03日 星期五 09:16:34 CST",         "anaconda-ks.cfg  books.txt\t  scripts\ttest1\t       zsh_test.txt",         "books.bak\t mapred-site.xml  sshKeyGen.sh\tyarn-site.xml"    ]}[root@hadron ~]# 

4、setup模块

setup模块，用于收集对象机器的基本设定信息
（1） 不用option的情况会输出所有相关的对象机器的facts

[root@node1 ~]# ansible 192.168.80.133 -m setup192.168.80.133 | SUCCESS => {    "ansible_facts": {        "ansible_all_ipv4_addresses": [            "192.168.80.133"        ],         "ansible_all_ipv6_addresses": [            "fe80::20c:29ff:fe56:76ac"        ],         "ansible_apparmor": {            "status": "disabled"        },         "ansible_architecture": "x86_64",         "ansible_bios_date": "07/02/2015",         "ansible_bios_version": "6.00",         "ansible_cmdline": {            "BOOT_IMAGE": "/vmlinuz-3.10.0-514.el7.x86_64",             "LANG": "en_US.UTF-8",             "crashkernel": "auto",             "quiet": true,             "rd.lvm.lv": "cl/swap",             "rhgb": true,             "ro": true,             "root": "/dev/mapper/cl-root"        },         "ansible_date_time": {            "date": "2017-10-02",             "day": "02",             "epoch": "1506952781",             "hour": "09",             "iso8601": "2017-10-02T13:59:41Z",             "iso8601_basic": "20171002T095941588584",             "iso8601_basic_short": "20171002T095941",             "iso8601_micro": "2017-10-02T13:59:41.588683Z",             "minute": "59",             "month": "10",             "second": "41",             "time": "09:59:41",             "tz": "EDT",             "tz_offset": "-0400",             "weekday": "Monday",             "weekday_number": "1",             "weeknumber": "40",             "year": "2017"        }, ......

（2） setup常用Option：filter
比如收集对象机器的环境变量信息

[root@node1 ~]# ansible 192.168.80.133 -m setup -a "filter=ansible_env"192.168.80.133 | SUCCESS => {    "ansible_facts": {        "ansible_env": {            "CLASSPATH": ".::/opt/jdk1.8.0_112/lib",             "HADOOP_HOME": "/opt/hadoop-2.7.3",             "HBASE_HOME": "/opt/hbase-1.2.6",             "HIVE_HOME": "/opt/hive-2.1.1",             "HOME": "/root",             "JAVA_HOME": "/opt/jdk1.8.0_112",             "LANG": "en_US.UTF-8",             "LESSOPEN": "||/usr/bin/lesspipe.sh %s",             "LOGNAME": "root",             "LS_COLORS": "rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=01;05;37;41:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=01;36:*.au=01;36:*.flac=01;36:*.mid=01;36:*.midi=01;36:*.mka=01;36:*.mp3=01;36:*.mpc=01;36:*.ogg=01;36:*.ra=01;36:*.wav=01;36:*.axa=01;36:*.oga=01;36:*.spx=01;36:*.xspf=01;36:",             "MAIL": "/var/mail/root",             "PATH": "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/opt/jdk1.8.0_112/bin:/opt/hadoop-2.7.3/bin:/opt/hadoop-2.7.3/sbin:/opt/zookeeper-3.4.10/bin:/opt/hbase-1.2.6/bin:/opt/hive-2.1.1/bin",             "PWD": "/root",             "SHELL": "/bin/bash",             "SHLVL": "2",             "SSH_CLIENT": "192.168.80.131 58450 22",             "SSH_CONNECTION": "192.168.80.131 58450 192.168.80.133 22",             "SSH_TTY": "/dev/pts/1",             "TERM": "xterm",             "USER": "root",             "XDG_RUNTIME_DIR": "/run/user/0",             "XDG_SESSION_ID": "15",             "ZOO_HOME": "/opt/zookeeper-3.4.10",             "_": "/usr/bin/python"        }    },     "changed": false}[root@node1 ~]# 

5、user/group模块

• user模块，用于管理用户。
• group模块，用于管理group。

[root@node1 ~]# echo [slaves] >> /etc/ansible/hosts[root@node1 ~]# echo node2 >> /etc/ansible/hosts[root@node1 ~]# echo node3 >> /etc/ansible/hosts

使用user模块添加用户

[root@node1 ~]# ansible node3 -m command -a "id test01"node3 | FAILED | rc=1 >>id: test01: no such user[root@node1 ~]# ansible node3 -m user -a "name=test01 group=root"node3 | SUCCESS => {    "changed": true,     "comment": "",     "createhome": true,     "group": 0,     "home": "/home/test01",     "name": "test01",     "shell": "/bin/bash",     "state": "present",     "system": false,     "uid": 1000}[root@node1 ~]# ansible node3 -m command -a "id test01"node3 | SUCCESS | rc=0 >>uid=1000(test01) gid=0(root) groups=0(root)[root@node1 ~]#

使用user模块删除用户

[root@node1 ~]# ansible node3 -m user -a "name=test01 state=absent remove=yes"node3 | SUCCESS => {    "changed": true,     "force": false,     "name": "test01",     "remove": true,     "state": "absent"}[root@node1 ~]# ansible node3 -m command -a "id test01"node3 | FAILED | rc=1 >>id: test01: no such user[root@node1 ~]# 

使用group 模块添加group

[root@node1 ~]# ansible node3 -m shell -a "cat /etc/group |grep testgrp01"node3 | FAILED | rc=1 >>[root@node1 ~]# ansible node3 -m group -a "name=testgrp01"node3 | SUCCESS => {    "changed": true,     "gid": 1000,     "name": "testgrp01",     "state": "present",     "system": false}[root@node1 ~]# ansible node3 -m shell -a "cat /etc/group |grep testgrp01"node3 | SUCCESS | rc=0 >>testgrp01:x:1000:[root@node1 ~]# 

使用group模块删除group

[root@node1 ~]# ansible node3 -m group -a "name=testgrp01 state=absent"node3 | SUCCESS => {    "changed": true,     "name": "testgrp01",     "state": "absent"}[root@node1 ~]# ansible node3 -m shell -a "cat /etc/group |grep testgrp01"node3 | FAILED | rc=1 >>[root@node1 ~]# 

6、yum模块

使用yum包管理器来管理软件包，其选项有：
name：要进行操作的软件包的名字，也可以传递一个url或者一个本地的rpm包的路径
state：状态（present-已安装，absent-未安装（卸载），latest-最新的）

#确保vim 包已经安装，但不更新ansible ip -m yum -a "name=vim state=present"#确保安装包到一个特定的版本ansible  ip -m yum -a "name=vim -7.4 state=present"#确保一个软件包是最新版本ansible  ip -m yum -a "name=vim state=latest"#确保一个软件包没有被安装ansible ip -m yum -a "name=vim state=absent"

使用yum模块删除httpd

[root@node1 ~]# ansible node3 -m shell -a "rpm -qa |grep httpd" [WARNING]: Consider using yum, dnf or zypper module rather than running rpmnode3 | SUCCESS | rc=0 >>httpd-tools-2.4.6-67.el7.centos.2.x86_64httpd-2.4.6-67.el7.centos.2.x86_64[root@node1 ~]#

[root@node1 ~]# ansible node3 -m yum -a "name=httpd state=absent"node3 | SUCCESS => {    "changed": true,     "msg": "",     "rc": 0,     "results": [        "Loaded plugins: fastestmirror\nResolving Dependencies\n--> Running transaction check\n---> Package httpd.x86_64 0:2.4.6-67.el7.centos.2 will be erased\n--> Finished Dependency Resolution\n\nDependencies Resolved\n\n================================================================================\n Package      Arch          Version                       Repository       Size\n================================================================================\nRemoving:\n httpd        x86_64        2.4.6-67.el7.centos.2         @updates        9.4 M\n\nTransaction Summary\n================================================================================\nRemove  1 Package\n\nInstalled size: 9.4 M\nDownloading packages:\nRunning transaction check\nRunning transaction test\nTransaction test succeeded\nRunning transaction\n  Erasing    : httpd-2.4.6-67.el7.centos.2.x86_64                           1/1 \n  Verifying  : httpd-2.4.6-67.el7.centos.2.x86_64                           1/1 \n\nRemoved:\n  httpd.x86_64 0:2.4.6-67.el7.centos.2                                          \n\nComplete!\n"    ]}[root@node1 ~]# ansible node3 -m shell -a "rpm -qa |grep httpd" [WARNING]: Consider using yum, dnf or zypper module rather than running rpmnode3 | SUCCESS | rc=0 >>httpd-tools-2.4.6-67.el7.centos.2.x86_64[root@node1 ~]# 

7、service模块

service模块用于管理服务
该模块包含如下选项：

arguments：给命令行提供一些选项
enabled：是否开机启动 yes|no
name：必选项，服务名称
state：对当前服务执行启动，停止、重启、重新加载等操作（started,stopped,restarted,reloaded）

[root@node1 ~]# ansible node2 -m service -a "name=httpd state=started enabled=yes"node2 | SUCCESS => {    "changed": false,     "enabled": true,     "name": "httpd",     "state": "started",     "status": {        "ActiveEnterTimestamp": "Mon 2017-11-13 08:40:59 EST",         "ActiveEnterTimestampMonotonic": "2785271709",         "ActiveExitTimestamp": "Mon 2017-11-13 08:40:58 EST",         "ActiveExitTimestampMonotonic": "2784178548",         "ActiveState": "active",         "After": "nss-lookup.target tmp.mount network.target system.slice systemd-journald.socket remote-fs.target basic.target -.mount",         "AllowIsolate": "no",         "AssertResult": "yes",         "AssertTimestamp": "Mon 2017-11-13 08:40:59 EST",         "AssertTimestampMonotonic": "2785210640",         "Before": "multi-user.target shutdown.target",         "BlockIOAccounting": "no",         "BlockIOWeight": "18446744073709551615",         "CPUAccounting": "no",         "CPUQuotaPerSecUSec": "infinity",         "CPUSchedulingPolicy": "0",         "CPUSchedulingPriority": "0",         "CPUSchedulingResetOnFork": "no",         "CPUShares": "18446744073709551615",         "CanIsolate": "no",         "CanReload": "yes",         "CanStart": "yes",         "CanStop": "yes",         "CapabilityBoundingSet": "18446744073709551615",         "ConditionResult": "yes",         "ConditionTimestamp": "Mon 2017-11-13 08:40:59 EST",         "ConditionTimestampMonotonic": "2785210639",         "Conflicts": "shutdown.target",         "ControlGroup": "/system.slice/httpd.service",         "ControlPID": "0",         "DefaultDependencies": "yes",         "Delegate": "no",         "Description": "The Apache HTTP Server",         "DevicePolicy": "auto",         "Documentation": "man:httpd(8) man:apachectl(8)",         "EnvironmentFile": "/etc/sysconfig/httpd (ignore_errors=no)",         "ExecMainCode": "0",         "ExecMainExitTimestampMonotonic": "0",         "ExecMainPID": "2913",         "ExecMainStartTimestamp": "Mon 2017-11-13 08:40:59 EST",         "ExecMainStartTimestampMonotonic": "2785211376",         "ExecMainStatus": "0",         "ExecReload": "{ path=/usr/sbin/httpd ; argv[]=/usr/sbin/httpd $OPTIONS -k graceful ; ignore_errors=no ; start_time=[n/a] ; stop_time=[n/a] ; pid=0 ; code=(null) ; status=0/0 }",         "ExecStart": "{ path=/usr/sbin/httpd ; argv[]=/usr/sbin/httpd $OPTIONS -DFOREGROUND ; ignore_errors=no ; start_time=[Mon 2017-11-13 08:40:59 EST] ; stop_time=[n/a] ; pid=2913 ; code=(null) ; status=0/0 }",         "ExecStop": "{ path=/bin/kill ; argv[]=/bin/kill -WINCH ${MAINPID} ; ignore_errors=no ; start_time=[Mon 2017-11-13 08:40:58 EST] ; stop_time=[Mon 2017-11-13 08:40:58 EST] ; pid=2908 ; code=exited ; status=0 }",         "FailureAction": "none",         "FileDescriptorStoreMax": "0",         "FragmentPath": "/usr/lib/systemd/system/httpd.service",         "GuessMainPID": "yes",         "IOScheduling": "0",         "Id": "httpd.service",         "IgnoreOnIsolate": "no",         "IgnoreOnSnapshot": "no",         "IgnoreSIGPIPE": "yes",         "InactiveEnterTimestamp": "Mon 2017-11-13 08:40:59 EST",         "InactiveEnterTimestampMonotonic": "2785209929",         "InactiveExitTimestamp": "Mon 2017-11-13 08:40:59 EST",         "InactiveExitTimestampMonotonic": "2785211427",         "JobTimeoutAction": "none",         "JobTimeoutUSec": "0",         "KillMode": "control-group",         "KillSignal": "18",         "LimitAS": "18446744073709551615",         "LimitCORE": "18446744073709551615",         "LimitCPU": "18446744073709551615",         "LimitDATA": "18446744073709551615",         "LimitFSIZE": "18446744073709551615",         "LimitLOCKS": "18446744073709551615",         "LimitMEMLOCK": "65536",         "LimitMSGQUEUE": "819200",         "LimitNICE": "0",         "LimitNOFILE": "4096",         "LimitNPROC": "7208",         "LimitRSS": "18446744073709551615",         "LimitRTPRIO": "0",         "LimitRTTIME": "18446744073709551615",         "LimitSIGPENDING": "7208",         "LimitSTACK": "18446744073709551615",         "LoadState": "loaded",         "MainPID": "2913",         "MemoryAccounting": "no",         "MemoryCurrent": "18446744073709551615",         "MemoryLimit": "18446744073709551615",         "MountFlags": "0",         "Names": "httpd.service",         "NeedDaemonReload": "no",         "Nice": "0",         "NoNewPrivileges": "no",         "NonBlocking": "no",         "NotifyAccess": "main",         "OOMScoreAdjust": "0",         "OnFailureJobMode": "replace",         "PermissionsStartOnly": "no",         "PrivateDevices": "no",         "PrivateNetwork": "no",         "PrivateTmp": "yes",         "ProtectHome": "no",         "ProtectSystem": "no",         "RefuseManualStart": "no",         "RefuseManualStop": "no",         "RemainAfterExit": "no",         "Requires": "-.mount basic.target",         "RequiresMountsFor": "/var/tmp",         "Restart": "no",         "RestartUSec": "100ms",         "Result": "success",         "RootDirectoryStartOnly": "no",         "RuntimeDirectoryMode": "0755",         "SameProcessGroup": "no",         "SecureBits": "0",         "SendSIGHUP": "no",         "SendSIGKILL": "yes",         "Slice": "system.slice",         "StandardError": "inherit",         "StandardInput": "null",         "StandardOutput": "journal",         "StartLimitAction": "none",         "StartLimitBurst": "5",         "StartLimitInterval": "10000000",         "StartupBlockIOWeight": "18446744073709551615",         "StartupCPUShares": "18446744073709551615",         "StatusErrno": "0",         "StatusText": "Total requests: 10; Current requests/sec: 0; Current traffic:   0 B/sec",         "StopWhenUnneeded": "no",         "SubState": "running",         "SyslogLevelPrefix": "yes",         "SyslogPriority": "30",         "SystemCallErrorNumber": "0",         "TTYReset": "no",         "TTYVHangup": "no",         "TTYVTDisallocate": "no",         "TimeoutStartUSec": "1min 30s",         "TimeoutStopUSec": "1min 30s",         "TimerSlackNSec": "50000",         "Transient": "no",         "Type": "notify",         "UMask": "0022",         "UnitFilePreset": "disabled",         "UnitFileState": "enabled",         "WantedBy": "multi-user.target",         "Wants": "system.slice",         "WatchdogTimestamp": "Mon 2017-11-13 08:40:59 EST",         "WatchdogTimestampMonotonic": "2785271669",         "WatchdogUSec": "0"    }}[root@node1 ~]# 

8、cron模块

cron模块用于管理计划任务

backup：对远程主机上的原任务计划内容修改之前做备份
cron_file：如果指定该选项，则用该文件替换远程主机上的cron.d目录下的用户的任务计划
day：日（1-31，，/2,……）
hour：小时（0-23，，/2，……）
minute：分钟（0-59，，/2，……）
month：月（1-12，，/2，……）
weekday：周（0-7，*，……）
job：要执行的任务，依赖于state=present
name：该任务的描述
special_time：指定什么时候执行，参数：reboot,yearly,annually,monthly,weekly,daily,hourly
state：确认该任务计划是创建还是删除
user：以哪个用户的身份执行

[root@node1 ~]# ansible node2 -m cron -a 'name="hello" weekday="1" minute=0 hour=12 user="root" job="/root/hello.sh"'node2 | SUCCESS => {    "changed": true,     "envs": [],     "jobs": [        "hello"    ]}[root@node1 ~]#