Ansible

准备¶

DNS 解析¶

cat >> /etc/hosts <<EOF
192.168.205.68   h1
192.168.205.69   h2
192.168.205.70   h3

192.168.205.73 m
EOF

安装¶

sudo apt-get update
sudo apt-get -y install python3-pip

pip3 install ansible

export PATH=$PATH:$HOME/.local/bin

SSH KEY¶

sudo cp /var/root/Library/Application\ Support/multipassd/ssh-keys/id_rsa ${PATH_CODE}

概念¶

Inventory¶

# ansible.cfg

[defaults]
inventory = hosts

# hosts

[all]
h[1:3]

[hadoop]
h[1:3]

[all:vars]
ansible_ssh_user=ubuntu

AdHoc¶

ansible localhost -m ping [-o]

ansible all  -m file -a "path=/opt/hadoop-3.3.4 state=absent" -b

Playbook¶

语法检查¶

ansible-playbook <YAML> --syntax-check

ansible-lint

工作原理¶

内置变量¶

ansible h1 -m debug -a 'msg={{ hostvars }}'

实战应用¶

环境变量¶

/etc/profile.d/java.sh。

服务启动¶

资源¶

• Ansible 中文权威指南
• Coud-init Docs
• Ansible get ip address of current host or target

评论