ansible 2.7.1 常见错误总结

1.RequestsDependencyWarning

（refer to http://blog.51cto.com/mjunetwslinux/2177727?source=dra）

python库中urllib3 (1.21.1) or chardet (2.2.1) 的版本不兼容

解决方法：

pip uninstall urllib3

pip uninstall  chardet

pip install requests

2.在 /etc/ansible/hosts 已经配置了IP地址、用户名和密码登陆失败

临时解决方法：

禁用公钥认证  

export ANSIBLE_HOST_KEY_CHECKING=False

手动登陆目标机器一次

ssh username@hostname

永久解决方法：

vim /etc/ansible/ansible.cfg

#host_key_checking= False取消注释

3.how to change to root at playbook
例1：target需要使用sudo su - 切换，则按照以下配置。

#site.yml
---
# This playbook deploys a simple playbook

- hosts: gcp
  become_user: root
  become: yes
  become_method: su
  roles:
    - testplaybook1

#run playbook like this
ansible-playbook /appvol/ansible/ansible-examples/ansible_playbook_test/site.yml -u lihuanhuan80  --private-key /appvol/robin.private -e "ansible_become_exe='sudo su -'" -vvv

或者这样配置site.yml

---
# This playbook deploys a simple playbook

- hosts: gcp
  become_user: root
  become: yes
  become_method: sudo
  roles:
    - testplaybook1

#run playbook like this
ansible-playbook /appvol/ansible/ansible-examples/ansible_playbook_test/site.yml -u lihuanhuan80  --private-key /appvol/robin.private -vvv

例2：target需要使用dzdo su - 切换，则按照以下配置。

#site.yml
---
# This playbook deploys a simple playbook

- hosts: gcp
  become_user: root
  become: yes
  become_method: su
  roles:
    - testplaybook1

#run playbook like this
ansible-playbook /appvol/ansible/ansible-examples/ansible_playbook_test/site.yml -u lihuanhuan80  --private-key /appvol/robin.private -e "ansible_become_exe='dzdo su -'" -vvv

或者这样配置site.yml

---
# This playbook deploys a simple playbook

- hosts: gcp
  become_user: root
  become: yes
  become_method: dzdo
  roles:
    - testplaybook1

#run playbook like this
ansible-playbook /appvol/ansible/ansible-examples/ansible_playbook_test/site.yml -u lihuanhuan80  --private-key /appvol/robin.private -vvv