Ansible:迭代并包含多个变量文件 [英] Ansible: Iterate and include multiple variable files

问题描述

我有数百个文件(通过某些应用程序生成)，我正在尝试对其进行迭代并将它们作为变量文件包含在内.

I have hundreds of files (generated through some application) which I am trying to iterate and include them as variable files.

请参阅以下文件作为示例.每个文件中还有更多的变量，为了让示例更清晰，我已经淡化了.

See below files as example. There are many more variables in each of the files, I have toned down to make the example clear.

# cat /tmp/abc/dev1.yml
---
app_name: dev1
instance: dev
port: 1234
server: test1
#

# cat /tmp/abc/dev2.yml
---
app_name: dev2
instance: dev
port: 4567
server: test2
#

# cat /tmp/abc/dev3.yml
---
app_name: dev3
instance: dev
port: 2223
server: test3
#

现在，当我在我的剧本中使用这些任务时，我可以看到在文件 (/tmp/abc/*.yml) 中定义的变量(app_name、实例、端口等)输出为 ansible_facts.

Now, when I use these tasks in my playbook, I can see the variables (app_name, instance, port, etc) defined in the files (/tmp/abc/*.yml) in the output as ansible_facts.

- action: shell echo "{{ item }}"
  with_fileglob: /tmp/abc/*
  register: res
- include_vars: "{{ item.item }}"
  with_items: res.results
  when: item.changed == True
  register: task1

这是我运行剧本时的输出.

This is my output, when I run the playbook.

root@vikas027:~# ansible-playbook -v configs.yml
PLAY [dev] **************************************************************

GATHERING FACTS ***************************************************************
ok: [vikas027.test.com]

TASK: [shell echo "{{ item }}"] ***********************************************
changed: [vikas027.test.com] => (item=/tmp/abc/dev3.yml) => {"changed": true, "cmd": "echo \"/tmp/abc/dev3.yml\"", "delta": "0:00:00.004915", "end": "2015-08-31 20:11:57.702623", "item": "/tmp/abc/dev3.yml", "rc": 0, "start": "2015-08-31 20:11:57.697708", "stderr": "", "stdout": "/tmp/abc/dev3.yml", "warnings": []}
changed: [vikas027.test.com] => (item=/tmp/abc/dev2.yml) => {"changed": true, "cmd": "echo \"/tmp/abc/dev2.yml\"", "delta": "0:00:00.004945", "end": "2015-08-31 20:11:58.130295", "item": "/tmp/abc/dev2.yml", "rc": 0, "start": "2015-08-31 20:11:58.125350", "stderr": "", "stdout": "/tmp/abc/dev2.yml", "warnings": []}
changed: [vikas027.test.com] => (item=/tmp/abc/dev1.yml) => {"changed": true, "cmd": "echo \"/tmp/abc/dev1.yml\"", "delta": "0:00:00.004864", "end": "2015-08-31 20:11:58.440205", "item": "/tmp/abc/dev1.yml", "rc": 0, "start": "2015-08-31 20:11:58.435341", "stderr": "", "stdout": "/tmp/abc/dev1.yml", "warnings": []}

TASK: [include_vars {{ item.item }}] ******************************************
ok: [vikas027.test.com] => (item={u'cmd': u'echo "/tmp/abc/dev3.yml"', u'end': u'2015-08-31 20:11:57.702623', u'stderr': u'', u'stdout': u'/tmp/abc/dev3.yml', u'changed': True, u'rc': 0, 'item': '/tmp/abc/dev3.yml', u'warnings': [], u'delta': u'0:00:00.004915', 'invocation': {'module_name': u'shell', 'module_args': u'echo "/tmp/abc/dev3.yml"'}, 'stdout_lines': [u'/tmp/abc/dev3.yml'], u'start': u'2015-08-31 20:11:57.697708'}) => {"ansible_facts": {"app_name": "dev3", "instance": "dev", "port": 2223, "server": "test3"}, "item": {"changed": true, "cmd": "echo \"/tmp/abc/dev3.yml\"", "delta": "0:00:00.004915", "end": "2015-08-31 20:11:57.702623", "invocation": {"module_args": "echo \"/tmp/abc/dev3.yml\"", "module_name": "shell"}, "item": "/tmp/abc/dev3.yml", "rc": 0, "start": "2015-08-31 20:11:57.697708", "stderr": "", "stdout": "/tmp/abc/dev3.yml", "stdout_lines": ["/tmp/abc/dev3.yml"], "warnings": []}}
ok: [vikas027.test.com] => (item={u'cmd': u'echo "/tmp/abc/dev2.yml"', u'end': u'2015-08-31 20:11:58.130295', u'stderr': u'', u'stdout': u'/tmp/abc/dev2.yml', u'changed': True, u'rc': 0, 'item': '/tmp/abc/dev2.yml', u'warnings': [], u'delta': u'0:00:00.004945', 'invocation': {'module_name': u'shell', 'module_args': u'echo "/tmp/abc/dev2.yml"'}, 'stdout_lines': [u'/tmp/abc/dev2.yml'], u'start': u'2015-08-31 20:11:58.125350'}) => {"ansible_facts": {"app_name": "dev2", "instance": "dev", "port": 4567, "server": "test2"}, "item": {"changed": true, "cmd": "echo \"/tmp/abc/dev2.yml\"", "delta": "0:00:00.004945", "end": "2015-08-31 20:11:58.130295", "invocation": {"module_args": "echo \"/tmp/abc/dev2.yml\"", "module_name": "shell"}, "item": "/tmp/abc/dev2.yml", "rc": 0, "start": "2015-08-31 20:11:58.125350", "stderr": "", "stdout": "/tmp/abc/dev2.yml", "stdout_lines": ["/tmp/abc/dev2.yml"], "warnings": []}}
ok: [vikas027.test.com] => (item={u'cmd': u'echo "/tmp/abc/dev1.yml"', u'end': u'2015-08-31 20:11:58.440205', u'stderr': u'', u'stdout': u'/tmp/abc/dev1.yml', u'changed': True, u'rc': 0, 'item': '/tmp/abc/dev1.yml', u'warnings': [], u'delta': u'0:00:00.004864', 'invocation': {'module_name': u'shell', 'module_args': u'echo "/tmp/abc/dev1.yml"'}, 'stdout_lines': [u'/tmp/abc/dev1.yml'], u'start': u'2015-08-31 20:11:58.435341'}) => {"ansible_facts": {"app_name": "dev1", "instance": "dev", "port": 1234, "server": "test1"}, "item": {"changed": true, "cmd": "echo \"/tmp/abc/dev1.yml\"", "delta": "0:00:00.004864", "end": "2015-08-31 20:11:58.440205", "invocation": {"module_args": "echo \"/tmp/abc/dev1.yml\"", "module_name": "shell"}, "item": "/tmp/abc/dev1.yml", "rc": 0, "start": "2015-08-31 20:11:58.435341", "stderr": "", "stdout": "/tmp/abc/dev1.yml", "stdout_lines": ["/tmp/abc/dev1.yml"], "warnings": []}}

PLAY RECAP ********************************************************************
vikas027.test.com : ok=3    changed=1    unreachable=0    failed=0
root@vikas027:~#

如何在其他任务中引用 app_name、instance、port 等变量?我尝试使用下面的代码和其他一些组合是徒劳的.

How can I reference variables like app_name, instance, port, etc in other tasks ? I tried using below code and few other combinations in vain.

- debug: msg="{{ task1.app_name }}"
  with_items: task1.results

推荐答案

您的变量文件 dev1.yml、dev2.yml 等都引用了相同的变量名.这是故意的，还是只是您示例的一部分?我问是因为您当前显示的示例将导致仅定义最后一组变量，因此就 ansible 而言，似乎变量最终将被定义为就像您这样做一样:

Your variable files, dev1.yml, dev2.yml, etc. all reference the same variable names. Is this on purpose, or just part of your example? I ask because your example as it's currently shown, would result in just the last set of variables being defined, so as far as ansible is concerned it appears that the variables would ultimately just be defined as if you did this:

vars:
    app_name: dev3
    instance: dev
    port: 2223
    server: test3

您只需通过给定的名称来引用变量:

You would just reference the variables by their given names:

- debug: var=app_name

- debug: var=instance

etc.

我猜你真正想做的是让这些变量文件看起来像这样:

What I'm guessing you actually want to be doing is having those variable files look something like this:

---
  app: 
    dev1: 
      instance: "dev"
      port: "1234"
      server: "host1"

和

---
  app: 
    dev2: 
      instance: "dev"
      port: "4321"
      server: "host2"

然后你会像这样引用你的对象:

You would then reference your objects something like this:

# should list "dev1", "dev2", "dev3"...
- debug: msg={{ item }}
  with_dict: app

# should list the server names for each device
- debug: var = app[item][server]
  with_dict: app

这篇关于Ansible:迭代并包含多个变量文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！