Ansible部署系列：（三）安装ssh

3. 安装ssh

3.1. 说明

主机与其他节点建立ssh连接并存储秘钥。

3.2. yml脚本

---
- hosts: ssh
  gather_facts: no
  vars_files:
    - ../vars.yml

  tasks:
  - name: enforce env
    shell: source ~/.bashrc
    run_once: true
  - name: delete /root/.ssh/
    file: path=/root/.ssh/ state=absent
  - name: generating public/private rsa key pair  #生成公钥和私钥
    shell: ssh-keygen -t rsa -b 2048 -N '' -f /root/.ssh/id_rsa
  - name: view id_rsa.pub  #将公钥设置成变量
    shell: cat /root/.ssh/id_rsa.pub
    register: sshinfo
  - set_fact: sshpub={{sshinfo.stdout}}
  - name: add ssh record #合并各个节点公钥
    local_action: shell echo {{ sshpub }} >> {{ PLAYBOOK_DIR }}/ssh/authorized_keys.j2
  - name: copy authorized_keys.j2 to all #分发到各个节点上
    template: src={{ PLAYBOOK_DIR }}/ssh/authorized_keys.j2 dest=/root/.ssh/authorized_keys mode=0600
    tags:
    - install ssh

3.3. 运行ansible-playbook

ansible-playbook -i /etc/ansible/hosts ssh/main.yml