Ansible

配置文件查找优先级

ANSIBLE_CONFIG #全局
ansible.cfg #项目目录
.ansible.cfg
/etc/ansible/ansible.cfg

Ansible Inventory 主机清单
Ansible Ad-Hoc 模块 ansible-doc module_name
1.yum | yum_repository
2.copy
3.file
4.service|systemd
5.cron
6.mount
7.user
8.group
9.shell | command
10.firewalld | selinux

command shell

  • 建议使用shell模块,因为command不支持管道技术

yum模块

内容 含义
name 软件包名称 URL地址 本地的某个路径下的rpm包
state 具体动作 present absent latest
exclude 排除
enablerepo 通过哪个仓库安装
disablerepo 安装时不使用哪个仓库
  • 2yum 安装软件
#示例一、安装当前最新的Apache软件,如果存在则不安装
[root@manager ~/ansible-project1]# ansible oldboy -m yum -a "name=httpd state=latest"

#示例二、安装当前最新的Apache软件,通过epel仓库安装
[root@manager ~]# ansible oldboy -m yum -a "name=httpd enablerepo=epel state=present"

#示例三、通过公网URL安装rpm软件
[root@manager ~/ansible-project1]# ansible oldboy -m yum -a "name=http://192.168.16.236/zabbix/4.0/rhel/7/x86_64/zabbix-agent-4.0.0-2.el7.x86_64.rpm state=present"

#示例五、更新所有的软件包,但排除和kernel相关的
[root@manager ~/ansible-project1]# ansible oldboy -m yum -a "name='*' state=latest exclude="kernel*""   


#示例六、删除Apache软件
[root@manager ~/ansible-project1]# ansible oldboy -m yum -a "name=httpd state=absent"


copy模块

内容 含义
src 当前管理机的配置文件路径
content 要写入的内容
dest 目标文件的配置文件路径
owner 属主
group 属组
mode 权限
backup 备份 (每个变更进行备份)
[root@manager ~/ansible-project1]# ansible oldboy -m copy -a 'src=./hosts dest=/tmp/ owner=root group=root mode=600 backup=yes'


管理httpd配置文件
[root@manager ~/ansible-project1]# ansible oldboy -m copy -a "src=./files/httpd.conf dest=/etc/httpd/conf/httpd.conf owner=root group=root mode=0644 backup=yes"


systemd
    name:       服务名称
    state:  started stopped restarted  reloaded
    enabled:   开机自启动  yes|no

    
1.启动httpd服务
[root@manager ~/ansible-project1]# ansible oldboy -m systemd -a "name=httpd state=started"

2.开机自启动
[root@manager ~/ansible-project1]# ansible oldboy -m systemd -a "name=httpd state=started enabled=yes"

file模块

path: /work                 #在被控端哪个路径下创建目录 | 文件
state: directory  touch     # directory 目录  touch 文件``
owner: root
group: root
mode: '0755'
recurse: yes 递归授权

[root@manager ~/ansible-project1]# ansible oldboy -m file -a "path=/ansible_data state=directory owner=root group=root mode=0755"

group
    name:       组名称
    state:      present  absent
    gid:        组id
[root@manager ~/ansible-project1]# ansible oldboy -m group -a "name=test gid=8888 state=present"
[root@manager ~/ansible-project1]# ansible oldboy -m group -a "name=test state=absent"

user
    name:               指定用户名称
    uid:                指定用户的uid
    group:              指定用户的组名称  或 组 GID
    groups:             指定用户的附加组(附加组需存在) append:yes 给一个用户追加附加组
    create_home         创建用户家目录/home/Username   默认yes | no 
    shell:              指定登录用户的bash  /bin/bash  /sbin/nologin
    system:             指定系统用户
    password
    
1.创建一个dev用户,uid为9999    属于test主的组,附加组为admin,root组
[root@manager ~/ansible-project1]# ansible oldboy -m user -a "name=dev uid=9999 group=test groups=adm,root shell=/bin/bash create_home=yes"

2.追加两个组给dev用户
[root@manager ~/ansible-project1]# ansible oldboy -m user -a "name=dev groups=bin,daemon append=yes"

3.创建一个系统用户ops,没有家目录  不允许登录系统
[root@manager ~/ansible-project1]# ansible oldboy -m user -a "name=ops system=yes shell=/sbin/nologin create_home=no"


4.创建一个普通用户,可登录  devops  123456
ansible all -i localhost, -m debug -a "msg={{ '123456' | password_hash('sha512', 'mysecretsalt') }}"
    "msg": "$6$mysecretsalt$ZB9R8AirQYAXhtfhOo2qdJz52FyNI6v3L6Uc3KNRP.arBKIYpcuEyQewT5qBAHoyQFwHkW6Z551Ql.cZ53GeY0"
    
[root@manager ~/ansible-project1]# ansible oldboy -m user -a 'name=devops password="$6$mysecretsalt$ZB9R8AirQYAXhtfhOo2qdJz52FyNI6v3L6Uc3KNRP.arBKIYpcuEyQewT5qBAHoyQFwHkW6Z551Ql.cZ53GeY0"'

mount挂载

    src:   源设备  (磁盘 | 光盘|  远程的共享的地址) src=172.16.1.31:/data
    path:   挂载点
    fstype: 设备类型  nfs xfs ext4 iso9660 ....
    opts:   挂载选项  defaults
    state: 
        absent  mounted         永久
        present unmounted       临时

1.挂载172.16.1.31/data/blog  挂载至本地的/opt  
[root@manager ~/ansible-project1]# ansible oldboy -m mount -a "src=172.16.1.31:/data/blog path=/opt fstype=nfs opts=defaults state=mounted"

[root@manager ~/ansible-project1]# ansible oldboy -m mount -a "src=172.16.1.31:/data/blog path=/opt fstype=nfs opts=defaults state=unmounted"   
    



selinux
    [root@manager ~/ansible-project1]# ansible oldboy -m selinux -a "state=disabled"

firewalld
    zone:               指定区域 默认public
    service:            指定服务名称
    port:               指定端口
    state:              启用或禁止
    masquerade:         开机地址伪装 yes
    immediate:          临时生效 yes
    permanent:          永久生效
    source:             来源IP
    rich_rule: rule service name="ftp" audit limit value="1/m" accept

1.放行http服务
[root@manager ~/ansible-project1]# ansible 172.16.1.31 -m firewalld -a "zone=public  service=http state=enabled immediate=yes permanent=yes"

2.放行tcp80端口
[root@manager ~/ansible-project1]# ansible 172.16.1.31 -m firewalld -a "zone=public  port=80/tcp state=enabled immediate=yes permanent=yes"

3.将5555端口转发到 172.16.1.7 22  端口 开启masquerade地址伪装
[root@manager ~/ansible-project1]# ansible 172.16.1.31 -m firewalld -a "zone=public rich_rule='rule family=ipv4 forward-port port=5555 protocol=tcp to-port=22 to-addr=172.16.1.7'  state=enabled immediate=yes"
[root@manager ~/ansible-project1]# ansible 172.16.1.31 -m firewalld -a "zone=public masquerade=yes state=enabled immediate=yes"


4.配置基于来源IP  10.0.0.1主机 放行 22 端口
[root@manager ~/ansible-project1]# ansible 172.16.1.31 -m firewalld -a "zone=public rich_rule='rule family=ipv4 source address=10.0.0.100/32 service name=ssh accept'  state=enabled immediate=yes"


cron
1.添加一个定时任务 (能不能执行跟cron模块没有关系)
[root@manager ~/ansible-project1]# ansible oldboy -m cron -a "name='Backup scripts' minute=00 hour=05 user=root job='/bin/bash /scripts/check_data.sh &>/dev/null'"

2.删除定时任务
[root@manager ~/ansible-project1]# ansible oldboy -m cron -a "name='Backup scripts' minute=00 hour=05 user=root job='/bin/bash /scripts/check_data.sh &>/dev/null' state=absent"
    
yum_repository
    name:           仓库名称,并且是文件的名称
    description:    描述--
    baseurl:        仓库的地址|很重要  http:// https:// ftp:// file://
    enabled:        是否启用该仓库yes
    gpgcheck:       不对下载的软件包进行检查
[root@manager ~/ansible-project1]# ansible oldboy -m yum_repository -a 'name=rpmforge description="RPMforge YUM Repo" baseurl="https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/os/$basearch/" enabled=yes gpgcheck=no'
    

ansible-doc (user group mount)

1.使用ansible 的 ad-hoc  搭建  NFS  服务?  31
    1.安装nfs
        # ansible nfs -m yum -a "name=nfs-utils state=present"
    
    2.配置nfs
    [root@manager ~/ansible-project1]# cat exports.j2 
    /data/blog 172.16.1.0/24(rw,sync,all_squash,anonuid=666,anongid=666) 
    /data/zh 172.16.1.0/24(rw,sync,all_squash,anonuid=666,anongid=666)
    /data/ansible 172.16.1.0/24(rw,sync,all_squash,anonuid=666,anongid=666)
    
    [root@manager ~/ansible-project1]# ansible nfs -m copy -a "src=./exports.j2 dest=/etc/exports owner=root group=root mode=0644 backup=yes"
    
    3.根据配置文件进行初始化操作   创建用户  创建目录 授权
    
    [root@manager ~/ansible-project1]# ansible nfs -m group -a "name=www gid=666 state=present"
    [root@manager ~/ansible-project1]# ansible nfs -m user -a "name=www uid=666 group=www  state=present"
    
    [root@manager ~/ansible-project1]# ansible nfs -m file -a "path=/data/ansible state=directory owner=www group=www mode=755 recurse=yes"
    
    3.启动nfs
    [root@manager ~/ansible-project1]# ansible nfs -m systemd -a "name=nfs state=restarted enabled=yes"
    
    
2.使用ansible 的 ad-hoc  实现  NFS  挂载?   7
    1.安装nfs-utils工具
        [root@manager ~/ansible-project1]# ansible web -m yum -a "name=nfs-utils state=present"
    
    2.使用mount挂载即可
        [root@manager ~/ansible-project1]# ansible web -m mount -a "src=172.16.1.31:/data/ansible path=/mnt fstype=nfs opts=defaults state=mounted"



[root@manager ~/ansible-project1]# cat nfs-server.yml 
- hosts: nfs
  tasks:
    - name: Installed NFS Server
      yum:
        name: nfs-utils
        state: present

    - name: Configure NFS Server
      copy:
        src: ./exports.j2
        dest: /etc/exports
        owner: root
        group: root
        mode: 0644

    - name: Create NFS Group
      group:
        name: www
        gid: 666
  
    - name: Create NFS User
      user: 
        name: www
        uid: 666
        group: 666

    - name: Create NFS Share directory
      file:
        path: /data/ansible
        state: directory
        owner: www
        group: www
        mode: 755

    - name: Restart NFS Server
      systemd: 
        name: nfs
        state: restarted    
            
        
[root@manager ~/ansible-project1]# cat nfs-client.yml 
- hosts: web
  tasks:
    - name: Mount NFS Server
      mount: 
        src: 172.16.1.31:/data/ansible 
        path: /mnt
        fstype: nfs
        opts: defaults 
        state: mounted  
        

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