ansible中映射环境变量出错

Question

I am trying to export environmental variables in ansible where the variable is a map variable as follows.

Ex.

 Variable_123: 
   VAR23='
   global:
     string: abcd
   environment:
     local:
       version: 2.32
   '

This when set using environment function in ansible as below:

- name: Run tests
  environment: {{ Variable_123 }}

Gives error

mapping values are not allowed in this context 

Answer 1

environment is a dictionary. For example,

  environment:
    NVM_DIR: /var/local/nvm
    PATH: /var/local/nvm/versions/node/v4.2.1/bin:{{ ansible_env.PATH }}

In your case, you probably want to create such an environment dictionary in the variable Variable_123 where the environment variable VAR23 keeps the YAML dictionary as a string

  Variable_123:
    VAR23: |
      global:
        string: abcd
      environment:
        local:
          version: 2.32

You can use this environment

    - command: echo $VAR23
      environment: "{{ Variable_123 }}"
      register: out

gives

  out.stdout: |-
    global:
      string: abcd
    environment:
      local:
        version: 2.32

You can convert the string to the dictionary

  VAR23: "{{ out.stdout|from_yaml }}"

gives

  VAR23:
    environment:
      local:
        version: 2.32
    global:
      string: abcd

---

Example of a complete playbook for testing

- hosts: localhost vars: Variable_123: VAR23: | global: string: abcd environment: local: version: 2.32 VAR23: "{{ out.stdout|from_yaml }}" tasks: - command: echo $VAR23 environment: "{{ Variable_123 }}" register: out - debug: var: out.stdout - debug: var: VAR23 - debug: var: VAR23.environment.local.version

gives

PLAY [localhost] ***************************************************************************** TASK [command] ******************************************************************************* changed: [localhost] TASK [debug] ********************************************************************************* ok: [localhost] => out.stdout: |- global: string: abcd environment: local: version: 2.32 TASK [debug] ********************************************************************************* ok: [localhost] => VAR23: environment: local: version: 2.32 global: string: abcd TASK [debug] ********************************************************************************* ok: [localhost] => VAR23.environment.local.version: '2.32' PLAY RECAP *********************************************************************************** localhost: ok=4 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0