6.lineinfile|replace模块
- lineinfile
[root@k8s_node1 ~]# cat /etc/my.cnf //查看托管主机k8s_node1上my.cnf文件的内容
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
binlog-format=mixed ---》k8s_node1主机上binlog-format为mixed模式
...
[root@k8s_node2 ~]# cat /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
binlog-format=mixed ---》k8s_node2主机上binlog-format为mixed模式
...
[root@k8s_master1 ~]# ansible k8s_node -m lineinfile -a 'path=/etc/my.cnf regexp="^binlog-format" line="binlog-format=row"' //远程将目标文件/etc/my.cnf中匹配以binlog-format开头的行,修改为binlog-format=row
k8s_node2 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"backup": "",
"changed": true,
"msg": "line replaced"
}
k8s_node1 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"backup": "",
"changed": true,
"msg": "line replaced"
}
[root@k8s_node1 ~]# cat /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
binlog-format=row ---》修改完成后，k8s_node1主机上binlog-format已经变成row模式
...
[root@k8s_node2 ~]# cat /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
binlog-format=row ---》修改完成后，k8s_node2主机上binlog-format已经变成row模式
...
也可以使用lineinfile模块将文件内容修改为空
[root@k8s_node1 ~]# cat /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
binlog-format=row
[root@k8s_master1 ~]# ansible k8s_node -m lineinfile -a 'path=/etc/my.cnf regexp="^binlog-format" line=" "' k8s_node2 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"backup": "",
"changed": true,
"msg": "line replaced"
}
k8s_node1 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"backup": "",
"changed": true,
"msg": "line replaced"
}
[root@k8s_node1 ~]# cat /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
...
- replace
[root@k8s_node1 ~]# cat /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
binlog-format=row
...
[root@k8s_node2 ~]# cat /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
binlog-format=row
...
[root@k8s_master1 ~]# ansible k8s_node -m replace -a 'path=/etc/my.cnf regexp="row" replace="mixed"' //远程将目标文件/etc/my.cnf文件中匹配的row,替换为mixed
k8s_node2 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"msg": "1 replacements made"
}
k8s_node1 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"msg": "1 replacements made"
}
[root@k8s_node1 ~]# cat /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
binlog-format=mixed
...
[root@k8s_node2 ~]# cat /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
binlog-format=mixed
...
7.yum模块
- yum
安装
[root@k8s_node1 ~]# yum list installed | grep unzip
[root@k8s_node2 ~]# yum list installed | grep unzip
--》可以看到k8s_node1主机与k8s_node2主机上都没有安装unzip
[root@k8s_master1 ~]# ansible k8s_node -m yum -a 'name="unzip" state=installed' //远程为k8s_node主机组中的主机安装unzip软件
k8s_node1 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"changes": {
"installed": [
"unzip"
]
},
"msg": "",
"rc": 0,
"results": [
"Loaded plugins: fastestmirror\nLoading mirror speeds from cached hostfile\n * base: mirrors.bfsu.edu.cn\n * extras: mirrors.bfsu.edu.cn\n * updates: mirrors.bfsu.edu.cn\nResolving Dependencies\n--> Running transaction check\n---> Package unzip.x86_64 0:6.0-22.el7_9 will be installed\n--> Finished Dependency Resolution\n\nDependencies Resolved\n\n================================================================================\n Package Arch Version Repository Size\n================================================================================\nInstalling:\n unzip x86_64 6.0-22.el7_9 updates 171 k\n\nTransaction Summary\n================================================================================\nInstall 1 Package\n\nTotal download size: 171 k\nInstalled size: 365 k\nDownloading packages:\nRunning transaction check\nRunning transaction test\nTransaction test succeeded\nRunning transaction\n Installing : unzip-6.0-22.el7_9.x86_64 1/1 \n Verifying : unzip-6.0-22.el7_9.x86_64 1/1 \n\nInstalled:\n unzip.x86_64 0:6.0-22.el7_9 \n\nComplete!\n"
]
}
k8s_node2 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"changes": {
"installed": [
"unzip"
]
},
"msg": "",
"rc": 0,
"results": [
"Loaded plugins: fastestmirror\nLoading mirror speeds from cached hostfile\n * base: mirrors.bfsu.edu.cn\n * extras: mirrors.bfsu.edu.cn\n * updates: mirrors.bfsu.edu.cn\nResolving Dependencies\n--> Running transaction check\n---> Package unzip.x86_64 0:6.0-22.el7_9 will be installed\n--> Finished Dependency Resolution\n\nDependencies Resolved\n\n================================================================================\n Package Arch Version Repository Size\n================================================================================\nInstalling:\n unzip x86_64 6.0-22.el7_9 updates 171 k\n\nTransaction Summary\n================================================================================\nInstall 1 Package\n\nTotal download size: 171 k\nInstalled size: 365 k\nDownloading packages:\nRunning transaction check\nRunning transaction test\nTransaction test succeeded\nRunning transaction\n Installing : unzip-6.0-22.el7_9.x86_64 1/1 \n Verifying : unzip-6.0-22.el7_9.x86_64 1/1 \n\nInstalled:\n unzip.x86_64 0:6.0-22.el7_9 \n\nComplete!\n"
]
}
[root@k8s_node1 ~]# yum list installed | grep unzip
unzip.x86_64 6.0-22.el7_9 @updates
[root@k8s_node2 ~]# yum list installed | grep unzip
unzip.x86_64 6.0-22.el7_9 @updates
--》可以看到现在k8s_node主机组中的主机都已经安装好了unzip软件
卸载
[root@k8s_master1 ~]# ansible k8s_node -m yum -a 'name="unzip" state=removed'
k8s_node2 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"changes": {
"removed": [
"unzip"
]
},
"msg": "",
"rc": 0,
"results": [
"已加载插件：fastestmirror\n正在解决依赖关系\n--> 正在检查事务\n---> 软件包 unzip.x86_64.0.6.0-22.el7_9 将被 删除\n--> 解决依赖关系完成\n\n依赖关系解决\n\n================================================================================\n Package 架构 版本 源 大小\n================================================================================\n正在删除:\n unzip x86_64 6.0-22.el7_9 @updates 365 k\n\n事务概要\n================================================================================\n移除 1 软件包\n\n安装大小：365 k\nDownloading packages:\nRunning transaction check\nRunning transaction test\nTransaction test succeeded\nRunning transaction\n 正在删除 : unzip-6.0-22.el7_9.x86_64 1/1 \n 验证中 : unzip-6.0-22.el7_9.x86_64 1/1 \n\n删除:\n unzip.x86_64 0:6.0-22.el7_9 \n\n完毕！\n"
]
}
k8s_node1 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"changes": {
"removed": [
"unzip"
]
},
"msg": "",
"rc": 0,
"results": [
"已加载插件：fastestmirror\n正在解决依赖关系\n--> 正在检查事务\n---> 软件包 unzip.x86_64.0.6.0-22.el7_9 将被 删除\n--> 解决依赖关系完成\n\n依赖关系解决\n\n================================================================================\n Package 架构 版本 源 大小\n================================================================================\n正在删除:\n unzip x86_64 6.0-22.el7_9 @updates 365 k\n\n事务概要\n================================================================================\n移除 1 软件包\n\n安装大小：365 k\nDownloading packages:\nRunning transaction check\nRunning transaction test\nTransaction test succeeded\nRunning transaction\n 正在删除 : unzip-6.0-22.el7_9.x86_64 1/1 \n 验证中 : unzip-6.0-22.el7_9.x86_64 1/1 \n\n删除:\n unzip.x86_64 0:6.0-22.el7_9 \n\n完毕！\n"
]
}
[root@k8s_node1 ~]# yum list installed | grep unzip
[root@k8s_node2 ~]# yum list installed | grep unzip
8.service模块
- service
[root@k8s_node1 ~]# ss -antulp | grep sshd
tcp LISTEN 0 128 *:22 *:* users:(("sshd",pid=9818,fd=3))
tcp LISTEN 0 128 :::22 :::* users:(("sshd",pid=9818,fd=4))
[root@k8s_node2 ~]# ss -antulp | grep sshd
tcp LISTEN 0 128 *:22 *:* users:(("sshd",pid=892,fd=3))
tcp LISTEN 0 128 :::22 :::* users:(("sshd",pid=892,fd=4))
[root@k8s_master1 ~]# ansible k8s_node -m service -a 'name="sshd" enabled="yes" state="stopped"'
k8s_node1 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"enabled": true,
"name": "sshd",
"state": "stopped",
"status": {
"ActiveEnterTimestamp": "二 2021-08-10 06:53:43 CST",
"ActiveEnterTimestampMonotonic": "47952521833",
"ActiveExitTimestamp": "二 2021-08-10 06:53:43 CST",
"ActiveExitTimestampMonotonic": "47952513940",
"ActiveState": "active",
"After": "sshd-keygen.service system.slice network.target basic.target systemd-journald.socket",
"AllowIsolate": "no",
"AmbientCapabilities": "0",
"AssertResult": "yes",
"AssertTimestamp": "二 2021-08-10 06:53:43 CST",
"AssertTimestampMonotonic": "47952515333",
"Before": "shutdown.target multi-user.target",
"BlockIOAccounting": "no",
"BlockIOWeight": "18446744073709551615",
......
k8s_node2 | CHANGED => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": true,
"enabled": true,
"name": "sshd",
"state": "stopped",
"status": {
"ActiveEnterTimestamp": "二 2021-08-10 00:48:37 CST",
"ActiveEnterTimestampMonotonic": "6044168",
"ActiveExitTimestampMonotonic": "0",
"ActiveState": "active",
"After": "system.slice network.target basic.target sshd-keygen.service systemd-journald.socket",
"AllowIsolate": "no",
"AmbientCapabilities": "0",
"AssertResult": "yes",
"AssertTimestamp": "二 2021-08-10 00:48:37 CST",
"AssertTimestampMonotonic": "5883708",
"Before": "multi-user.target shutdown.target",
"BlockIOAccounting": "no",
"BlockIOWeight": "18446744073709551615",
"CPUAccounting": "no",
"CPUQuotaPerSecUSec": "infinity",
......
[root@k8s_node1 ~]# ss -antulp | grep sshd
[root@k8s_node2 ~]# ss -antulp | grep sshd
9.setup模块
- setup
filter参数：用于进行条件过滤。如果设置，仅返回匹配过滤条件的信息。
[root@k8s_master1 ~]# ansible k8s_node -m setup //不加任何参数返回全部信息
k8s_node2 | SUCCESS => {
"ansible_facts": {
"ansible_all_ipv4_addresses": [
"192.168.1.20"
],
"ansible_all_ipv6_addresses": [
"240e:398:390:6920::2",
"240e:398:390:6920:56c7:8737:b55b:39ce",
"fe80::f61a:9077:82e9:caa9"
],
"ansible_apparmor": {
"status": "disabled"
},
"ansible_architecture": "x86_64",
"ansible_bios_date": "04/13/2018",
"ansible_bios_version": "6.00",
"ansible_cmdline": {
"BOOT_IMAGE": "/vmlinuz-3.10.0-862.el7.x86_64",
"LANG": "zh_CN.UTF-8",
"quiet": true,
"rd.lvm.lv": "centos/swap",
"rhgb": true,
"ro": true,
"root": "/dev/mapper/centos-root"
},
"ansible_date_time": {
"date": "2021-08-13",
"day": "13",
"epoch": "1628838721",
"hour": "15",
"iso8601": "2021-08-13T07:12:01Z",
"iso8601_basic": "20210813T151201688740",
"iso8601_basic_short": "20210813T151201",
"iso8601_micro": "2021-08-13T07:12:01.688740Z",
"minute": "12",
"month": "08",
"second": "01",
"time": "15:12:01",
......
–》可以看到不加任何参数时，返回的信息非常多，很多情况我们并不需要全部的信息，可以通过加入过滤参数来获得指定的信息。
–常用的信息参数如下–：
-
ansible_all_ipv4_addresses：仅显示ipv4的信息。 -
ansible_devices：仅显示磁盘设备信息。 -
ansible_distribution：显示是什么系统，例：centos,suse等。 -
ansible_distribution_major_version：显示是系统主版本。 -
ansible_distribution_version：仅显示系统版本。 -
ansible_machine：显示系统类型，例：32位，还是64位。 -
ansible_eth0：仅显示eth0的信息。 -
ansible_hostname：仅显示主机名。 -
ansible_kernel：仅显示内核版本。 -
ansible_lvm：显示lvm相关信息。 -
ansible_memtotal_mb：显示系统总内存。 -
ansible_memfree_mb：显示可用系统内存。 -
ansible_memory_mb：详细显示内存情况。 -
ansible_swaptotal_mb：显示总的swap内存。 -
ansible_swapfree_mb：显示swap内存的可用内存。 -
ansible_mounts：显示系统磁盘挂载情况。 -
ansible_processor：显示cpu个数(具体显示每个cpu的型号)。 -
ansible_processor_vcpus：显示cpu个数(只显示总的个数)。
1.远程获取两台被托管主机的ansible_date_time信息
[root@k8s_master1 ~]# ansible k8s_node -m setup -a 'filter=ansible_date_time'
k8s_node2 | SUCCESS => {
"ansible_facts": {
"ansible_date_time": {
"date": "2021-08-13",
"day": "13",
"epoch": "1628839117",
"hour": "15",
"iso8601": "2021-08-13T07:18:37Z",
"iso8601_basic": "20210813T151837817990",
"iso8601_basic_short": "20210813T151837",
"iso8601_micro": "2021-08-13T07:18:37.817990Z",
"minute": "18",
"month": "08",
"second": "37",
"time": "15:18:37",
"tz": "CST",
"tz_offset": "+0800",
"weekday": "星期五",
"weekday_number": "5",
"weeknumber": "32",
"year": "2021"
},
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false
}
k8s_node1 | SUCCESS => {
"ansible_facts": {
"ansible_date_time": {
"date": "2021-08-13",
"day": "13",
"epoch": "1628809519",
"hour": "07",
"iso8601": "2021-08-12T23:05:19Z",
"iso8601_basic": "20210813T070519109683",
"iso8601_basic_short": "20210813T070519",
"iso8601_micro": "2021-08-12T23:05:19.109683Z",
"minute": "05",
"month": "08",
"second": "19",
"time": "07:05:19",
"tz": "CST",
"tz_offset": "+0800",
"weekday": "星期五",
"weekday_number": "5",
"weeknumber": "32",
"year": "2021"
},
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false
}
2.远程获取两台被托管主机的filter=ansible_all_ipv4_addresses地址IP信息
[root@k8s_master1 ~]# ansible k8s_node -m setup -a 'filter=ansible_all_ipv4_addresses'
k8s_node1 | SUCCESS => {
"ansible_facts": {
"ansible_all_ipv4_addresses": [
"192.168.1.19"
],
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false
}
k8s_node2 | SUCCESS => {
"ansible_facts": {
"ansible_all_ipv4_addresses": [
"192.168.1.20"
],
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false
}
3.远程获取两台被托管主机的filter=ansible_memory_mb内存信息
[root@k8s_master1 ~]# ansible k8s_node -m setup -a 'filter=ansible_memory_mb'
k8s_node1 | SUCCESS => {
"ansible_facts": {
"ansible_memory_mb": {
"nocache": {
"free": 1814,
"used": 168
},
"real": {
"free": 1555,
"total": 1982,
"used": 427
},
"swap": {
"cached": 0,
"free": 2047,
"total": 2047,
"used": 0
}
},
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false
}
k8s_node2 | SUCCESS => {
"ansible_facts": {
"ansible_memory_mb": {
"nocache": {
"free": 1816,
"used": 166
},
"real": {
"free": 1561,
"total": 1982,
"used": 421
},
"swap": {
"cached": 0,
"free": 2047,
"total": 2047,
"used": 0
}
},
"discovered_interpreter_python": "/usr/bin/python"
},
"changed": false
}
