如何在ansible playbook中为主机声明两个提示变量

Question

如何在 ansible playbook 中为主机声明两个提示变量，我在 Playbook 下面尝试但没有成功。 ..................................................... ..................................................... ..................................................... …… 提前谢谢你。

---
- name: MD5 File Check 
  gather_facts: false
  hosts: "{{ cluster_host_1 }}", "{{cluster_host_2 }}" 
  hosts: localhost
  remote_user: sv_operator
  vars_prompt:
    - name: "file_1"
      prompt: "File name"
      private: no
    - name: "cluster_host_1"
      prompt: "Enter 1st Host name"
      private: no
    - name: "cluster_host_2"
      prompt: "Enter 2nd Host Name"
      private: no
  tasks:
    - stat:
        path: "/tmp/{{ file_1 }}"
        checksum_algorithm: sha256
      register: output
      delegate_to: "{{ cluster_host_1 }}" 
    - debug:
        msg: "{{ output.stat.checksum }}"
    - stat:
        path: "/tmp/{{ file_2 }}"
        checksum_algorithm: sha256
      register: output_
      delegate_to: "{{ cluster_host_2 }}"
    - debug:
        msg: "{{ output_.stat.checksum }}"

Answer 1

给定远程主机和 /tmp/file1

shell> ssh admin@test_01 sha256 /tmp/file1
SHA256 (/tmp/file1) = e2611a1fac7fc2ab99d2e792ad84f34e66740d6a3d77b97b4da39a3758357da0

shell> ssh admin@test_02 sha256 /tmp/file1
SHA256 (/tmp/file1) = 109f60103192b5c8f4e33c26b4f9c7b94489bf8de0325497b7f5a0668dc1a402

下面的剧本

shell> cat playbook.yml
- name: SHA256 File Check 
  hosts: localhost
  gather_facts: false
  vars_prompt:
    - name: "file_1"
      prompt: "File name"
      private: no
    - name: "cluster_host_1"
      prompt: "Enter 1st Host name"
      private: no
    - name: "cluster_host_2"
      prompt: "Enter 2nd Host Name"
      private: no
  tasks:
    - stat:
        path: "/tmp/{{ file_1 }}"
        checksum_algorithm: sha256
      register: output
      delegate_to: "{{ cluster_host_1 }}" 
    - debug:
        msg: "{{ output.stat.checksum }}"
    - stat:
        path: "/tmp/{{ file_1 }}"
        checksum_algorithm: sha256
      register: output_
      delegate_to: "{{ cluster_host_2 }}"
    - debug:
        msg: "{{ output_.stat.checksum }}"

按预期工作

shell> ansible-playbook playbook.yml
File name: file1
Enter 1st Host name: test_01
Enter 2nd Host Name: test_02

PLAY [SHA256 File Check] ****

TASK [stat] ****
ok: [localhost -> test_01]

TASK [debug] ****
ok: [localhost] => 
  msg: e2611a1fac7fc2ab99d2e792ad84f34e66740d6a3d77b97b4da39a3758357da0

TASK [stat] ****
ok: [localhost -> test_02]

TASK [debug] ****
ok: [localhost] => 
  msg: 109f60103192b5c8f4e33c26b4f9c7b94489bf8de0325497b7f5a0668dc1a402

PLAY RECAP ****
localhost: ok=4 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0

Answer 2

如果您希望在两台主机上运行播放，请通过变量声明。你有两个选择。

选项 1：

由于您的目标主机是用逗号分隔的，您不妨这样输入它们。

- hosts: '{{ my_hosts }}'
  gather_facts: false
  remote_user: 'sv_operator'

  vars_prompt:
    - name: 'my_hosts'
      prompt: 'Comma separated list of hosts'
      private: no

然后在出现提示时：

Comma separated list of hosts: host1.local,host2.local

选项 2：

像host_1和host_2这样的单独变量捕获每个主机，然后在播放中将其作为列表调用。

- hosts:
    - '{{ host_1 }}'
    - '{{ host_2 }}'
  gather_facts: false
  remote_user: 'sv_operator'

  vars_prompt:
    - name: 'host_1'
      prompt: 'First host'
      private: no
    - name: 'host_2'
      prompt: 'Second host'
      private: no

然后在出现提示时：

First host: host1.local
Second host: host2.local

如何在ansible playbook中为主机声明两个提示变量

How declare two prompt variables for hosts in ansible playbook

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