一、Ansible安装
Ansible的安装方法主要有以下三种：
1、yum使用EPEL源安装
$ mv /etc/yum.repos.d/epel.repo /etc/yum.repos.d/epel.repo.backup
$ mv /etc/yum.repos.d/epel-testing.repo /etc/yum.repos.d/epel-testing.repo.backup
$ wget -O /etc/yum.repos.d/epel.repo https://mirrors.aliyun.com/repo/epel-7.repo
$ yum clean all && yum makecache
# 可以使用以下三种方式查看ansible包的信息
$ yum info ansible
$ yum list ansible
$ yum list | grep ansible
ansible.noarch 2.9.27-1.el7 epel
ansible-collection-microsoft-sql.noarch 1.1.0-1.el8 AppStream
ansible-collection-redhat-rhel_mgmt.noarch 1.0.0-2.el8 AppStream
ansible-doc.noarch 2.9.27-1.el7 epel
ansible-freeipa.noarch 0.3.8-1.el8 AppStream
ansible-freeipa-tests.noarch 0.3.8-1.el8 AppStream
ansible-inventory-grapher.noarch 2.4.4-1.el7 epel
ansible-lint.noarch 3.5.1-1.el7 epel
ansible-openstack-modules.noarch 0-20140902git79d751a.el7 epel
ansible-pcp.noarch 2.2.1-1.el8 AppStream
ansible-python3.noarch 2.9.27-1.el7 epel
ansible-review.noarch 0.13.4-1.el7 epel
ansible-test.noarch 2.9.27-1.el7 epel
centos-release-ansible-29.noarch 1-2.el8 extras
kubernetes-ansible.noarch 0.6.0-0.1.gitd65ebd5.el7 epel
python2-ansible-runner.noarch 1.0.1-1.el7 epel
python2-ansible-tower-cli.noarch 3.3.9-1.el7 epel
vim-ansible.noarch 3.2-1.el7
# 安装ansible
$ yum -y install ansible
$ ansible --version