在本地读取文件并在Ansible中使用vars远程

Question

I read a YAML file locally with the following playbook:

- name: Ensure the deploy_manifest var is defined and read deploy manifest
  hosts: localhost
  connection: local
  gather_facts: False
  tasks:
    - assert:
        that: deploy_manifest is defined
        msg: |
          Error: Must provide providers config path. Fix: Add '-e deploy_manifest=/path/to/manifest' to the ansible-playbook command

    - name: Read deploy manifest
      include_vars:
        file: "{{ deploy_manifest }}"
        name: manifest
      register: manifest

    - debug:
        msg: "[{{ manifest.key }}]: {{ manifest.value }}"
      with_dict: "{{ manifest.ansible_facts }}"

and then in the same playbook YAML file I run:

- name: Deploy Backend services
  hosts: backend
  remote_user: ubuntu
  gather_facts: False
  vars:
    env: "{{ env }}"
    services: "{{ manifest.ansible_facts }}"
  tasks:
    - include_role:
        name: services_backend
      when: backend | default(true) | bool

However it doesn't work because debug fails. It says that manifest is empty.

Which is the best way to read a YAML file or generally a configuration in a playbook and then have the variables passed in another playbook?

Answer 1

Your debug module doesn't say " that manifest is empty ", it says the key manifest.key does not exist because it does not.

1. You registered a fact named manifest with:

    register: manifest 

2. You try to refer to a key of the above manifest named key and another key (!) named value :

    msg: "[{{ manifest.key }}]: {{ manifest.value }}" 

---

• Please read Looping over Hashes chapter and acknowledge that (without using loop control ) you refer to the iterated variable using item .

• Please note that with name: manifest and register: manifest you read your vars file into manifest.ansible_facts.manifest .