ansible-playbook - Ansible 将 --extra-vars 用于条件包含

Question

我正在使用 Ansible 来部署一个可能已分发或未分发服务的环境。我想根据我传递给 ansible-playbook 的参数有条件地包含剧本。

create_server.yml

---
- include: launch_ec2_instance.yml

- include install_postgres.yml
  when {{db}} == "Y"

- include install_redis.yml
  when {{redis}} == "Y"

这是我如何调用 create_server.yml

ansible-playbook create_server.yml -i local --extra-vars "db=Y redis=N"

是否有可能做到这一点，如果有，如何做到？

Answer 1

是的。这是可能的。您的 when 语句中缺少冒号(:)。

---
- include: launch_ec2_instance.yml

- include install_postgres.yml
  when: {{ db }} == "Y"

- include install_redis.yml
  when: {{ redis }} == "Y"

您也可以省略大括号 ({{ }}):

---
- include: launch_ec2_instance.yml

- include install_postgres.yml
  when: db == "Y"

- include install_redis.yml
  when: redis == "Y"