使用ansible

Question

我使用ansible创建了一个ec2实例但是在创建实例之后它没有下载git包。 我的代码：

ec2:
       key_name: "{{ key }}"
       aws_access_key: "{{ aws_id }}"
       aws_secret_key: "{{ aws_key }}"
       region: "{{ aws_region }}"
       image: ami-2322b6123
       instance_type: t2.micro

   - name: install  git
     yum: name=git state=present

所以，我可以知道在使用ansible创建ec2实例后是否有办法安装包？

Answer 1

启动EC2实例后，您必须在新启动的实例中运行播放（安装git），而不是在控制主机中运行。您必须注册刚刚启动的，将其添加到主机库存，然后安装包。只需按照Ansible文档中的示例进行操作：ec2 module

- name: Create a instance
  ...
  ...
  tasks:
    - name: Launch instance
      ec2:
       key_name: "{{ key }}"
       aws_access_key: "{{ aws_id }}"
       aws_secret_key: "{{ aws_key }}"
       region: "{{ aws_region }}"
       image: ami-2322b6123
       instance_type: t2.micro
      register: ec2

    - name: Add new instance to host group
      add_host: hostname={{ item.public_ip }} groupname=launched
      with_items: '{{ec2.instances}}'

    - name: Wait for SSH to come up
      wait_for: host={{ item.public_dns_name }} port=22 delay=60 timeout=320 state=started
      with_items: '{{ec2.instances}}'

- name: Configure instance(s)
  hosts: launched
  gather_facts: True
  ...
  tasks:
   - name: install  git
     yum: name=git state=present