Ansible學習筆記（六）：Ansible使用時常見問題總結

1、出現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

}

解決：python版本太低，要不升級python要不就安裝python-simplejson

2、安裝完成後鏈接客戶端服務器報錯：

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.

解決：在ansible 服務器上使用ssh 登錄下/etc/ansible/hosts 裏面配置的服務器。而後再次使用ansible 去管理就不會報上面的錯誤了！但這樣大批量登錄就麻煩來。由於默認ansible是使用key驗證的，若是使用密碼登錄的服務器，使用ansible的話，要不修改ansible.cfg配置文件的ask_pass = True給取消註釋，要不就在運行命令時候加上-k，這個意思是-k, --ask-pass ask for SSH password。再修改：host_key_checking= False便可

3、若是客戶端不在know_hosts裏將會報錯

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)?

解決：須要修改ansible.cfg的#host_key_checking= False取消註釋

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

解決：須要你在最後添加參數-k

5、openssh升級後沒法登陸報錯

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

file: No such file or directory

解決：sshrpm 升級後會修改/etc/pam.d/sshd 文件。須要升級前備份此文件最後還原便可登陸。

6、pip安裝完成後，運行ansible報錯：

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

解決：安裝：yum installopenssh-clients

7、第一次系統初始化運行生成本機ansible用戶key時報錯

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

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

FATAL: all hosts have already failed –aborting

解決：# yuminstall libselinux-python -y

8、ansible沒法起停tomcat的時候，有兩個點須要關注

（1）環境變量，在startup.sh中添加source /etc/profile

（2）後臺運行，加上nohup &