ansible安装应用软件

1.创建相应的目录：

mkdir -p /ansible/roles/{nginx,mysql,tomcat,db,zabbix}/{defaults,files,handlers,meta,tasks,templates,vars}

2 文件结构

[root@MSJTVL-MJSP-A35 etc]# tree ansible/
ansible/
├── ansible.cfg
├── hosts #配置主机相关信息
├── roles
│   ├── db
│   │   ├── defaults
│   │   ├── files
│   │   │   └── stu.sql #要导入的sql
│   │   ├── handlers
│   │   ├── meta
│   │   ├── tasks
│   │   │   └── main.yml #创建数据库和导入SQL
│   │   ├── templates
│   │   └── vars
│   ├── mysql
│   │   ├── defaults
│   │   ├── files
│   │   │   └── mysql_install.sh #mysql源码和安装脚本
│   │   ├── handlers
│   │   ├── meta
│   │   ├── tasks
│   │   │   └── main.yml  #安装mysql
│   │   ├── templates
│   │   └── vars
│   ├── nginx
│   │   ├── default
│   │   ├── defaults
│   │   ├── files
│   │   │   ├── install_nginx.sh  #nginx安装脚本
│   │   │   ├── nginx-1.10.0.tar.gz #nginx安装程序包
│   │   │   └── ngx_cache_purge-2.3.tar.gz
│   │   ├── handlers
│   │   ├── meta
│   │   ├── tasks
│   │   │   └── main.yml #安装nginx
│   │   ├── templates
│   │   │   └── nginx.conf #nginx配置文件
│   │   └── vars
│   ├── tomcat
│   │   ├── defaults
│   │   ├── files
│   │   ├── handlers
│   │   │   └── main.yml #安装后处理
│   │   ├── meta
│   │   ├── tasks
│   │   │   └── main.yml #安装tomcat
│   │   ├── templates
│   │   └── vars
│   └── zabbix
│   ├── defaults
│   ├── files
│   │   ├── install_zabbix.sh  #安装zabbix客户端脚本
│   │   ├── zabbix-3.0.7.tar.gz #zabbix安装包
│   │   └── zabbix_agentd.conf #zabbix客户端配置文件
│   ├── handlers
│   ├── meta
│   ├── tasks
│   │   └── main.yml  #安装zabbix
│   ├── templates
│   └── vars
├── web.retry
├── webservice.yml
└── web.yml #总的调用文件

各目录功能说明

3.解决“Aborting, target uses selinux but python bindings (libselinux-python) aren't installed!”问题：

更新python库：

yum -y install libselinux-python

4.playbooks&shell

/etc/ansible/web.yml

- hosts: lzy
  remote_user: root
  roles:
    - nginx
    - zabbix
    - mysql

/etc/ansible/roles/db/tasks/main.yml

---
- name: create db
  mysql_db: name=student state=present login_password=bingoclo123 login_user=root login_unix_socket=/data/mysql/data/mysql.sock
- name: copy sql file
  copy: src=stu.sql dest=/tmp
- name: import sql
  mysql_db: name=student state=import target=/tmp/stu.sql login_password=bingoclo123 login_user=root login_unix_socket=/data/mysql/data/mysql.sock

/etc/ansible/roles/db/files/stu.sql

create table profile(name varchar(20),age tinyint);
 insert into profile(name,age) values('teddy',12);

/etc/ansible/roles/nginx/tasks/main.yml

- name: copy nginx_tar_gz to client
  copy: src=/etc/ansible/roles/nginx/files/nginx-1.10.0.tar.gz dest=/tmp/nginx-1.10.0.tar.gz
- name: copy install_shell to client
  copy: src=/etc/ansible/roles/nginx/files/install_nginx.sh dest=/tmp/install_nginx.sh
- name: copy ngx_cache_purge-2.3.tar.gz to client
  copy: src=/etc/ansible/roles/nginx/files/ngx_cache_purge-2.3.tar.gz dest=/tmp/ngx_cache_purge-2.3.tar.gz
- name: install nginx
  shell: /bin/bash /tmp/install_nginx.sh

/etc/ansible/roles/nginx/files/install_nginx.sh

#!/bin/bash 

#yum安装一些依赖的模块
#yum -y install libselinux-python
yum -y install gcc zlib zlib-devel openssl openssl-devel pcre pcre-devel
yum -y install zlib zlib-devel openssl openssl-devel pcre-devel
#groupadd -r nginx
#useradd -s /sbin/nologin -g nginx -r nginx
cd /tmp
tar xf nginx-1.10.0.tar.gz
tar xf ngx_cache_purge-2.3.tar.gz
cd nginx-1.10.0
mkdir -p /opt/nginx/server/sbin
mkdir -p /opt/nginx/server/lib
mkdir -p /opt/nginx/server/log
mkdir -p /opt/nginx/server/run
mkdir -p /opt/nginx/server/cache
mkdir -p /opt/nginx/server/conf
mkdir -p /opt/nginx/server/lib
mkdir -p /opt/nginx/cache
./configure 
--prefix=/opt/nginx/server 
--sbin-path=/opt/nginx/server/sbin/nginx 
--modules-path=/opt/nginx/server/lib/modules 
--conf-path=/opt/nginx/server/conf/nginx.conf 
--error-log-path=/opt/nginx/server/log/error.log 
--http-log-path=/opt/nginx/server/log/access.log 
--pid-path=/opt/nginx/server/run/nginx.pid 
--lock-path=/opt/nginx/server/run/nginx.lock 
--http-client-body-temp-path=/opt/nginx/server/cache/client_temp 
--http-proxy-temp-path=/opt/nginx/server/cache/proxy_temp 
--http-fastcgi-temp-path=/opt/nginx/server/cache/fastcgi_temp 
--http-uwsgi-temp-path=/opt/nginx/server/cache/uwsgi_temp 
--http-scgi-temp-path=/opt/nginx/server/cache/scgi_temp 
--user=nginx 
--group=nginx 
--with-http_ssl_module 
--with-http_realip_module 
--with-http_addition_module 
--with-http_sub_module 
--with-http_dav_module 
--with-http_flv_module 
--with-http_mp4_module 
--with-http_gunzip_module 
--with-http_gzip_static_module 
--with-http_random_index_module 
--with-http_secure_link_module 
--with-http_stub_status_module 
--with-http_auth_request_module 
--with-threads 
--with-stream 
--with-stream_ssl_module 
--with-http_slice_module 
--with-mail 
--with-mail_ssl_module 
--with-file-aio 
--with-http_v2_module 
--with-ipv6 
--add-module=/tmp/ngx_cache_purge-2.3

make && make install
chown -R nginx:nginx /opt/nginx
#sed  "/^s*index / i proxy_pass http://localhost:8080;" /etc/nginx/nginx.conf
/opt/nginx/server/sbin/nginx
#sed

/etc/ansible/roles/mysql/tasks/main.yml

- name: copy mysql_tar_gz to client
  copy: src=mysql-5.6.27.tar.gz dest=/tmp/mysql-5.6.27.tar.gz
- name: copy install_script to client
  copy: src=mysql_install.sh dest=/tmp/mysql_install.sh owner=root group=root mode=755
- name: install mysql
  shell: /bin/bash /tmp/mysql_install.sh

etc/ansible/roles/tomcat/tasks/main.yml

- name: install java
  yum: name=java-1.7.0-openjdk state=present
- name: group
  group: name=tomcat
- name: user
  user: name=tomcat group=tomcat home=/usr/tomcat
  sudo: True
- name: copy tomcat_tar_gz
  copy: src=apache-tomcat-7.0.65.tar.gz dest=/tmp/apache-tomcat-7.0.65.tar.gz
- name: Extract archive
  command: /bin/tar xf /tmp/apache-tomcat-7.0.65.tar.gz -C /opt/
- name: Symlink install directory
  file: src=/opt/apache-tomcat-7.0.65/ dest=/usr/share/tomcat state=link
- name: Change ownership of Tomcat installation
  file: path=/usr/share/tomcat/ owner=tomcat group=tomcat state=directory recurse=yes
- name: Configure Tomcat users
  template: src=tomcat-users.xml dest=/usr/share/tomcat/conf/
  notify: restart tomcat
- name: Install Tomcat init script
  copy: src=tomcat-initscript.sh dest=/etc/init.d/tomcat mode=0755
- name: Start Tomcat
  service: name=tomcat state=started enabled=yes

etc/ansible/roles/tomcat/handlers/main.yml

- name: restart tomcat 
  service: name=tomcat state=restarted

etc/ansible/roles/mysql/files/mysql_install.sh

#!/bin/bash
DBDIR='/data/mysql/data'
PASSWD='bingoclo123'
[ -d $DBDIR ] || mkdir $DBDIR -p
yum install cmake make gcc-c++ bison-devel ncurses-devel -y
id mysql &> /dev/null
if [ $? -ne 0 ];then
 useradd mysql -s /sbin/nologin -M
fi
chown -R mysql.mysql $DBDIR
cd /tmp/
tar xf mysql-5.6.27.tar.gz
cd mysql-5.6.27
cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql 
-DMYSQL_DATADIR=$DBDIR 
-DMYSQL_UNIX_ADDR=$DBDIR/mysql.sock 
-DDEFAULT_CHARSET=utf8 
-DEXTRA_CHARSETS=all 
-DENABLED_LOCAL_INFILE=1 
-DWITH_READLINE=1 
-DDEFAULT_COLLATION=utf8_general_ci 
-DWITH_EMBEDDED_SERVER=1
if [ $? != 0 ];then
 echo "cmake error!"
 exit 1
fi
make && make install
if [ $? -ne 0 ];then
 echo "install mysql is failed!" && /bin/false
fi
sleep 2
ln -s /usr/local/mysql/bin/* /usr/bin/
cp -f /usr/local/mysql/support-files/my-default.cnf /etc/my.cnf
cp -f /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
chmod 700 /etc/init.d/mysqld
/usr/local/mysql/scripts/mysql_install_db  --basedir=/usr/local/mysql --datadir=$DBDIR --user=mysql
if [ $? -ne 0 ];then
 echo "install mysql is failed!" && /bin/false
fi
/etc/init.d/mysqld start
if [ $? -ne 0 ];then
 echo "install mysql is failed!" && /bin/false
fi
chkconfig --add mysqld
chkconfig mysqld on
/usr/local/mysql/bin/mysql -e "update mysql.user set password=password('$PASSWD') where host='localhost' and user='root';"
/usr/local/mysql/bin/mysql -e "update mysql.user set password=password('$PASSWD') where host='127.0.0.1' and user='root';"
/usr/local/mysql/bin/mysql -e "delete from mysql.user where password='';"
/usr/local/mysql/bin/mysql -e "flush privileges;"
if [ $? -eq 0 ];then
 echo "ins_done"
fi

5执行安装&检查

[root@MSJTVL-MJSP-A35 ansible]# ansible-playbook web.yml 

PLAY [lzy] *********************************************************************

TASK [setup] *******************************************************************
ok: [10.0.110.91]
ok: [10.0.110.47]

TASK [zabbix : copy zabbix_tar_gz to client] ***********************************
changed: [10.0.110.47]
changed: [10.0.110.91]

TASK [zabbix : copy install_shell to client] ***********************************
changed: [10.0.110.91]
changed: [10.0.110.47]

TASK [zabbix : copy zabbix_agentd.conf to client] ******************************
changed: [10.0.110.91]
changed: [10.0.110.47]

TASK [zabbix : install zabbix] *************************************************
changed: [10.0.110.47]
changed: [10.0.110.91]

PLAY RECAP *********************************************************************
10.0.110.47                : ok=5    changed=4    unreachable=0    failed=0   
10.0.110.91                : ok=5    changed=4    unreachable=0    failed=0

6、常见错误

1、出现Error: ansible requires a json module, none found!

SSH password:

192.168.24.15 | FAILED >> {

   "failed": true,

   "msg": "Error: ansible requires a json module, nonefound!",

   "parsed": false

}

解决：python版本过低，要不升级python要不就安装python-simplejson

2、安装完成后连接客户端服务器报错：

FAILED => Using a SSH password insteadof a key is not possible because Host Key checking is enabled and sshpass doesnot support this.  Please add this host'sfingerprint to your known_hosts file to manage this host.

解决：在ansible 服务器上使用ssh 登陆下/etc/ansible/hosts 里面配置的服务器。然后再次使用ansible 去管理就不会报上面的错误了！但这样大批量登陆就麻烦来。因为默认ansible是使用key验证的，如果使用密码登陆的服务器，使用ansible的话，要不修改ansible.cfg配置文件的ask_pass = True给取消注释，要不就在运行命令时候加上-k，这个意思是-k, --ask-pass ask for SSH password。再修改：host_key_checking= False即可

3、如果客户端不在know_hosts里将会报错

paramiko: The authenticity of host '192.168.24.15'can't be established.

The ssh-rsa key fingerprint is397c139fd4b0d763fcffaee346a4bf6b.

Are you sure you want to continueconnecting (yes/no)?

解决：需要修改ansible.cfg的#host_key_checking= False取消注释

4、出现FAILED => FAILED: not a valid DSA private key file

解决：需要你在最后添加参数-k

5、openssh升级后无法登录报错

PAM unable todlopen(/lib64/security/pam_stack.so): /lib64/security/pam_stack.so: cannot openshared object

file: No such file or directory

解决：sshrpm 升级后会修改/etc/pam.d/sshd 文件。需要升级前备份此文件最后还原即可登录。

6、pip安装完成后，运行ansible报错：

File "/usr/lib64/python2.6/subprocess.py",line 642, in __init__ errread, errwrite)

解决：安装：yum installopenssh-clients

7、第一次系统初始化运行生成本机ansible用户key时报错

failed: [127.0.0.1] =>{"checksum": "f5f2f20fc0774be961fffb951a50023e31abe920","failed": true}

msg: Aborting, target uses selinux but pythonbindings (libselinux-python) aren't installed!

FATAL: all hosts have already failed –aborting

解决：# yuminstall libselinux-python -y

 7.补充

1.使用ssh-copy-id命令来复制Ansible公钥到节点中。

    ssh-copy-id -i sm01@10.0.110.47