Ansible 日期比较 EC2 [英] Ansible date compare EC2

问题描述

我是 Ansible 的新手.我使用 ansible 创建了 EC2 实例，并且能够使用 EC2 事实检索启动时间.

I am new to Ansible . I created EC2 instances using ansible and able to to retrieve the launch time using EC2 facts .

但我无法以日期格式存储启动时间.

But i am unable to store the launch time in date format .

我的目标是获取启动时间日期与系统日期的差异(也无法找到并执行一些操作.

My goal is to get the difference of launch time date with system date (unable to find that also and perform some operations .

感谢任何指导.

问候，纳雷什·夏尔马

推荐答案

从 Ansible 2.2 开始，有一个方便的 to_datetime(format) 过滤器可用.

Since Ansible 2.2 there is a handy to_datetime(format) filter available.

以下是您的任务示例:

---
- hosts: localhost
  gather_facts: yes
  tasks:
    - name: local date
      debug:
        msg: "{{ ansible_date_time.iso8601 }}"
    - ec2_remote_facts:
        region: eu-west-1
      register: ec2
    - name: instance date
      debug:
        msg: "{{ ec2.instances[0].launch_time }}"
    - name: date difference in days
      debug:
        msg: "{{ (ansible_date_time.iso8601[:19] | to_datetime(fmt) - ec2.instances[0].launch_time[:19] | to_datetime(fmt)).days }}"
      vars:
        fmt: "%Y-%m-%dT%H:%M:%S"

注意 [:19] 获取前 19 个字符以避免处理毫秒和时区字符.

Note [:19] to get first 19 characters to avoid handling of milliseconds and timezone characters.

结果:

PLAY [localhost] ***************************************************************

TASK [setup] *******************************************************************
ok: [localhost]

TASK [local date] **************************************************************
ok: [localhost] => {
    "msg": "2017-02-03T18:39:12Z"
}

TASK [ec2_remote_facts] ********************************************************
ok: [localhost]

TASK [instance date] ***********************************************************
ok: [localhost] => {
    "msg": "2016-09-21T15:43:40.000Z"
}

TASK [date difference in days] *************************************************
ok: [localhost] => {
    "msg": "135"
}

PLAY RECAP *********************************************************************
localhost                  : ok=5    changed=0    unreachable=0    failed=0

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