通过ansible playbook在centos 7上创建一个ws ec2实例。

Question

我创建了一个游戏手册 aws.yml 并想通过我的本地主机运行它

---
-  hosts: webserver

-  vars:
      region: ap-south-1
      instance_type: t2.micro
      ami: ami-005956c5f0f757d37  # Amazon linux LTS
      keypair: ansible # pem file name

-  tasks:

    -  ec2:
         key_name: "{{ ansible }}"
         group: ansible  # security group name
         instance_type: "{{ t2.micro }}"
         image: "{{ ami-005956c5f0f757d37 }}"
         wait: true
         wait_timeout: 500
         region: "{{ ap-south-1 }}"
         count: 1  # default
         count_tag:
            Name: Prod-Instance
         instance_tags:
            Name: Prod-Instance
         vpc_subnet_id: subnet-00efd068
         assign_public_ip: yes

主机文件的内容 等可控主机

[web]
localhost

当我试图运行我的 aws.yml它给出了以下错误信息

[root@localhost ~]# ansible-playbook  aws.yml

PLAY [web] ********************************************************************************************************************************************************************************************************
ERROR! the field 'hosts' is required but was not set
[root@localhost ~]# 

Answer 1

你的游戏本和你的主机组名称不匹配。

在 aws.yml

- hosts: webserver

而在 等可控主机

[web]

你应该改变你的 aws.yml 读本

- hosts: web

或 您的主机文件 等可控主机 阅读

[webserver]

Answer 2

太多了 -s. 去掉前面的 tasks 和 vars.

另外，使用 delegate_to: localhost 在...上 ec2 任务。

---
- hosts: webserver
  vars:
      region: ap-south-1
      instance_type: t2.micro
      ami: ami-005956c5f0f757d37  # Amazon linux LTS
      keypair: ansible # pem file name
  tasks:
  - ec2:
      key_name: "{{ ansible }}"
      group: ansible  # security group name
      instance_type: "{{ t2.micro }}"
      image: "{{ ami-005956c5f0f757d37 }}"
      wait: true
      wait_timeout: 500
      region: "{{ ap-south-1 }}"
      count: 1  # default
      count_tag:
        Name: Prod-Instance
      instance_tags:
        Name: Prod-Instance
      vpc_subnet_id: subnet-00efd068
      assign_public_ip: yes
    delegate_to: localhost