Ansible:我们可以异步运行包含剧本吗? [英] Ansible: Can we run an include playbook Asynchronously?

问题描述

我有兴趣了解 Ansible 是否可以异步运行包含的剧本?

I'm interested to learn if Ansible can run an included playbook asynchronously?

基本上我要做的是运行一个任务即发即忘，稍后再检查".当我稍后检查它时，我还想发送一个带有结果的 slack 通知.

Basically what I'm trying to do is run a task "Fire and forget, check on it later." When I check on it later I also want to send a slack notification with the result.

但是，我注意到包含的松弛通知剧本需要比预期更长的时间才能完成，因此它可以支撑剧本的其余部分.

However I've notice the included playbook for slack notification takes a little longer than expected to complete and hence it holds up the rest of the playbook.

我想要的是异步包含的 playbook 以获取 slack 通知，以便当前的 playbook 继续.

What I want is to async the included playbook for slack notification so that the current playbook continues.

例如我有一个看起来像这样的 playbook.yml 文件:

For instance I have a playbook.yml file that looks like:

- hosts: localhost

  tasks:
  - name: Fire and forget task
    shell: some_task.sh
           chdir=/tmp/
    register: fire_and_forget_task
    async: 3600
    poll: 0


  - name: Check on fire and forget task
    async_status: jid={{ fire_and_forget_task.ansible_job_id }}
    register: task_status
    until: task_status.finished
    retries: 100
    ignore_errors: yes


  - name: Send slack success msg
    include: slack.yml msg="Fire and forget task SUCCESS"
    when: task_status.stdout is defined and 
          'SUCCESS' in fire_and_forget_task.stdout
    async: 3600
    poll: 0


  - name: Send slack failed msg
    include: slack.yml msg="Fire and forget task FAILED"
    when: task_status.stdout is defined and 
          'FAILED' in fire_and_forget_task.stdout
    async: 3600
    poll: 0

我的 slack.yml 文件如下所示:

My slack.yml file looks like:

  - name: Send notification message via Slack
    local_action:
      module: slack
      token: <REDACTED>
      attachments:
      - text: "{{ msg }}"
        color: "#83F52C"
        title: "Ansible Status {{ lookup('pipe','date') }}"

使用上面的剧本，Send slack success msg"任务需要非常长的时间来执行这样一个简单的任务.尽管我已经明确声明它应该异步运行，但它似乎不是异步运行的.

With the above playbook, the "Send slack success msg" task takes an awfully long time to execute for a simple task like that. It seems its not running asynchronously even though I have explicitly stated it should.

达到预期结果的最佳方法是什么?谢谢.

What is the best way to achieve the desired outcome? Thank you.

推荐答案

include 不能使用 async 关键字.
如果你的 slack.yml 就这么简单，只需用一个调用替换你的包含内容:

include can't use async keyword.
If your slack.yml is that simple, just replace your include stuff with a single call:

- name: Send notification message via Slack
  local_action:
    module: slack
    token: <REDACTED>
    attachments:
    - text: "Task result {{ (task_status.stdout is defined and 'SUCCESS' in task_status.stdout) | ternary('SUCCESS','FAILURE') }}"
      color: "#83F52C"
      title: "Ansible Status {{ lookup('pipe','date') }}"
  async: 3600
  poll: 0

附言但我不明白如果您有一个长时间运行的任务(具有高 async 和 retries 数字)，那么单个 Slack HTTP 调用是如何减慢您的剧本的...

P.S. but I don't understand how is single Slack HTTP-call slowing down your playbook if you have a long-running task (with high async and retries numbers) just before it...

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