Question

尝试所有运气但不起作用。我需要使用条件设置环境变量检查，然后在执行包含和使用2个任务时在main.yml上运行播放或任务。

main.yml

- include: createnonprod.yml
when: "{{ environment }}" == 'dev' or "{{ environment }}" == 'qa' or "
{{ environment }}" == 'preprod'

- include: createprod.yml
when: "{{ environment }}" == 'prod'

环境设置在groups_vars变量文件＆＃34; all＆＃34; 环境：

"{{ lookup('env','ENVIRONMENT') }}"

但这种检查逻辑失败

（OR）

我需要运行这个逻辑，以便它调用具有条件的任务来检查变量

create.yml

- name: Install all users from IAM of the AWS Account.
  shell: "{{ scriptdir }}/install.sh -i {{ iamgroup }},{{ sudogroup }} -s {{ sudogroup }}"
  when: "{{ environment }}" == 'dev' or "{{ environment }}" == 'qa' or "{{ environment }}" == 'preprod'

- name: Install all users from IAM of the AWS Account.
  shell: "{{ scriptdir }}/install.sh -i {{ iamgroup }},{{ sudogroup }} -s {{ sudogroup }}"
  when: "{{ environment }}" == 'prod'

请帮我一个有效的逻辑。我收到这个错误：

fatal: [localhost]: FAILED! => {"failed": true, "reason": "ERROR! 
Syntax Error while loading YAML.\n\n\nThe error appears to have been in 
'/tmp/ansible/roles/provision/users/tasks/create.yml': line 18, column 
22, but may\nbe elsewhere in the file depending on the exact syntax 
problem.\n\nThe offending line appears to be:\n\n  when:\n    - {{ 
env_type }} == 'dev'\n                     ^ here\nWe could be wrong, 
but this one looks like it might be an issue with\nmissing quotes.  
Always quote template expression brackets when they\nstart a value. For 
instance:\n\n    with_items:\n      - {{ foo }}\n\nShould be written 
as:\n\n    with_items:\n      - \"{{ foo }}\"\n"}

Answer 1

The When Statement

when子句，其中包含原始Jinja2表达式 双花括号

when: environment == 'dev' or environment == 'qa' or environment == 'preprod'

when: environment == 'prod'

Answer 2

如果您尝试这种方式怎么办。

定义一个变量来处理您的环境：

vars:
  env_value: "{{ lookup('env', 'ENVIRONMENT') }}"

，然后在when条件中使用此变量：

when: env_value == "dev"

简单的例子：

- hosts: "localhost"
  vars:
    env_value: "{{ lookup('env', 'ENVIRONMENT') }}"
  tasks:
  - shell: echo "I've got {{ env_value }} and am not afraid to use it!"
    when: env_value == "prd"

代码示例：

- name: Install all users from IAM of the AWS Account.
  shell: "{{ scriptdir }}/install.sh -i {{ iamgroup }},{{ sudogroup }} -s {{ sudogroup }}"
  when: env_value == 'dev' or env_value == 'qa' or env_value == 'preprod'

还请注意有关保留Ansible环境变量名称的link。

有条件的ansible来设置变量

2 个答案: