ansible EC2 with_items failling

Question

在這裏我們有一個劇本的EC2模塊：

--- 
# This playbook creates dev-test instances at AWS. 

- name: test creation 
    hosts: localhost 
    gather_facts: False 
    tasks: 
    - name: instance creation 
    ec2: 
     key_name: dev-key 
     group_id: sg-55667788 
     instance_type: t2.micro 
     image: ami-cd0f5cb6 
     wait: yes 
     wait_timeout: 300 
     volumes: 
     - device_name: /dev/sda1 
      volume_type: gp2 
      volume_size: 32 
      delete_on_termination: True   
     - device_name: /dev/xvdb 
      volume_type: gp2 
      volume_size: 1 
      delete_on_termination: True 
     - device_name: /dev/xvdc 
      volume_type: gp2 
      volume_size: 200 
      delete_on_termination: True 
     vpc_subnet_id: "{{ item.vpc_subnet_id }}" 
     zone: "{{ item.zone }}" 
     region: us-east-1 
     assign_public_ip: no 
     private_ip: "{{ item.private_ip }}" 
     instance_tags: 
     Name: "{{ item.tag_name }}" 
     user_data: | 
       #!/bin/bash 
       mkswap /dev/xvdb 
       swapon /dev/xvdb 
       echo "/dev/xvdb none swap sw 0 0" >> /etc/fstab 
       echo "n 
       e 
       1 


       n 
       l 


       w 
       " | fdisk /dev/xvdc 
     with_items: 
     - { vpc_subnet_id: 'subnet-11223344', zone: 'us-east-1d', private_ip: '172.31.5.15', tag_name: 'dev-test.vpc-01' } 
     - { vpc_subnet_id: 'subnet-44332211', zone: 'us-east-1e', private_ip: '172.31.7.13', tag_name: 'dev-test.vpc-01' } 

而且這裏的錯誤輸出：

test@test:~$ ansible-playbook --check create-ec2.yml 
[WARNING]: Could not match supplied host pattern, ignoring: all 

[WARNING]: provided hosts list is empty, only localhost is available 


PLAY [instance creation] ********************************************************************************************************* 

TASK [instance creation] ************************************************************************************************************ 
fatal: [localhost]: FAILED! => {"failed": true, "msg": "The task includes an option with an undefined variable. The error was: 'item' is undefined\n\nThe error appears to have been in 'create-ec2.yml': line 8, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n tasks:\n - name: cria instancia\n ^here\n\nexception type: <class 'ansible.errors.AnsibleUndefinedVariable'>\nexception: 'item' is undefined"} 
    to retry, use: --limit @create-ec2.retry 

PLAY RECAP *********************************************************************************************************************** 
localhost     : ok=0 changed=0 unreachable=0 failed=1 

我沒有看到那裏的錯誤是。這個項目在哪裏未定義？

Answer 1

with_items被錯誤地縮進。它應該在任務級別上，而不是在任務參數級別上。

因此，with的指令被忽略，變量item未定義。