3.2.Ansible安装

在开始安装之前，为了避免firewalld和selinux的干扰，我们将其关闭。该操作仅限于实验环境，请勿在生产环境操作

• 关闭firewalld防火墙

  $ systemctl stop firewalld
  $ systemctl disable firewalld

• 关闭selinux

  # 编辑配置，将SELINUX设置为disable
  $ vi /etc/sysconfig/selinux
  SELINUX=disabled
  # 重启虚机，使配置生效
  $ reboot
  # 重启成功后，执行如下命令，若返回Disabled则说明成功关闭SELINUX
  $ getenforce
  Disabled

Ansible的常见安装模式(CentOS7)

Yum包管理安装

# yum install epel-release
# yum repolist
# yum -y install ansible

python3+pip3+virtualenv安装

1. 安装python3

   $ yum install -y python3
   $ which python3
   /bin/python3

2. 安装virtualenv

   $ pip3 install virtualenv -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com

3. 创建python3虚拟空间并激活

   $ python3 -m virtualenv ansible  # Create a virtualenv if one does not already exist
   $ source ansible/bin/activate   # Activate the virtual environment

4. 安装ansible

   $ python -m pip install ansible -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com

5. 验证ansible版本

   $ ansible --version
   ansible 2.10.5
     config file = /etc/ansible/ansible.cfg
     configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
     ansible python module location = /opt/ansible/lib/python3.6/site-packages/ansible
     executable location = /opt/ansible/bin/ansible
     python version = 3.6.8 (default, Nov 16 2020, 16:55:22) [GCC 4.8.5 20150623 (Red Hat 4.8.5-44)]

Python3.6+Ansible2.5源代码安装

1. 预先安装Python3.6版本

2. 安装virtualenv

   # pip install virtualenv

3. 创建Ansible账户并安装python3.6版本virtualenv实例

   # useradd deploy && su - deploy
   # virtualenv -p /usr/local/bin/python3 .py3-a2.5-env

4. Git源代码安装ansible2.5

   # cd /home/deploy/.py3-a2.5-env
   # git clone https://github.coy/ansible/ansible.git
   # cd ansible && git checkout stable-2.5

5. 加载python3.6 virtualenv环境

   # source /home/deploy/.py3-a2.5-env/bin/activate

6. 安装ansible依赖包

   # pip install paramiko PyYAML jinja2

7. 在python3.6虚拟环境下加载ansible2.5

   # source /home/deployl.py3-a2.5-env/ansible/hacking/env-setup -q

8. 验证ansible2.5

   # ansible --version

更多安装方式

更多安装方式请见：Installation Guide