Ansible - 循環播放結果+語句

Question

我的目標是循環訪問cisco交換機上的接口，檢查訪問vlan，然後在設置爲「12」時更改該vlan，或者在其他時候更改爲12。這樣做，我保存結果「int_out」：

- name: check vlan on some interfaces and save to int_out 
    ios_command: 
     commands: show run int Fa0/{{ item }} | incl switchport access vlan 
     provider: "{{ cli }}" 
    with_sequence: start=1 end=3 stride=1 
    register: int_out 

我想遍歷所有的「int_out」的結果，並使用「時，」就像下面衆所周知聲明改變接入VLAN：

- name: change vlan if needed 
    ios_config: 
     lines: switchport access vlan 1234 
     parents: interface Fa0/{{item}} 
    when: item.stdout_lines == " switchport access vlan 12" 
    with_items: "{{ int_out.results }}" 

但比較不起作用：

TASK [change vlan when needed] ************************************************* 
skipping: [192.168.0.33] => (item={u'changed': False, '_ansible_no_log': False, u'stdout': [u' switchport access vlan 12'], '_ansible_item_result': True, 'item': u'1', 'invocation': {'module_name': u'ios_command', u'module_args': {u'authorize': False, u'username': u'admin', u'commands': [u'show run int Fa0/1 | incl switchport access vlan'], u'auth_pass': None, u'retries': 10, u'waitfor': None, u'interval': 1, u'host': u'192.168.0.33', u'ssh_keyfile': None, u'timeout': 10, u'provider': u"{'username': 'admin', 'host': '192.168.0.33', 'password': '********'}", u'password': u'VALUE_SPECIFIED_IN_NO_LOG_PARAMETER', u'port': 22}}, u'stdout_lines': [[u' switchport access vlan 12']]}) 
skipping: [192.168.0.33] => (item={u'changed': False, '_ansible_no_log': False, u'stdout': [u' switchport access vlan 12'], '_ansible_item_result': True, 'item': u'2', 'invocation': {'module_name': u'ios_command', u'module_args': {u'authorize': False, u'username': u'admin', u'commands': [u'show run int Fa0/2 | incl switchport access vlan'], u'auth_pass': None, u'retries': 10, u'waitfor': None, u'interval': 1, u'host': u'192.168.0.33', u'ssh_keyfile': None, u'timeout': 10, u'provider': u"{'username': 'admin', 'host': '192.168.0.33', 'password': '********'}", u'password': u'VALUE_SPECIFIED_IN_NO_LOG_PARAMETER', u'port': 22}}, u'stdout_lines': [[u' switchport access vlan 12']]}) 
skipping: [192.168.0.33] => (item={u'changed': False, '_ansible_no_log': False, u'stdout': [u' switchport access vlan 12'], '_ansible_item_result': True, 'item': u'3', 'invocation': {'module_name': u'ios_command', u'module_args': {u'authorize': False, u'username': u'admin', u'commands': [u'show run int Fa0/3 | incl switchport access vlan'], u'auth_pass': None, u'retries': 10, u'waitfor': None, u'interval': 1, u'host': u'192.168.0.33', u'ssh_keyfile': None, u'timeout': 10, u'provider': u"{'username': 'admin', 'host': '192.168.0.33', 'password': '********'}", u'password': u'VALUE_SPECIFIED_IN_NO_LOG_PARAMETER', u'port': 22}}, u'stdout_lines': [[u' switchport access vlan 12']]}) 

如果我檢查「item.stdout_lines」的輸出，看啥子的錯誤：

- debug: msg= "{{ item.stdout_lines }}" 
    with_items: "{{ int_out.results }}" 

我得到的不僅stdout_lines但多了很多：

TASK [debug] ******************************************************************* 
ok: [192.168.0.33] => (item={u'changed': False, '_ansible_no_log': False, u'stdout': [u' switchport access vlan 12'], '_ansible_item_result': True, 'item': u'1', 'invocation': {'module_name': u'ios_command', u'module_args': {u'authorize': False, u'username': u'admin', u'commands': [u'show run int Fa0/1 | incl switchport access vlan'], u'auth_pass': None, u'retries': 10, u'waitfor': None, u'interval': 1, u'host': u'192.168.0.33', u'ssh_keyfile': None, u'timeout': 10, u'provider': u"{'username': 'admin', 'host': '192.168.0.33', 'password': '********'}", u'password': u'VALUE_SPECIFIED_IN_NO_LOG_PARAMETER', u'port': 22}}, u'stdout_lines': [[u' switchport access vlan 12']]}) => { 
    "item": { 
     "changed": false, 
     "invocation": { 
      "module_args": { 
       "auth_pass": null, 
       "authorize": false, 
       "commands": [ 
        "show run int Fa0/1 | incl switchport access vlan" 
       ], 
       "host": "192.168.0.33", 
       "interval": 1, 
       "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER", 
       "port": 22, 
       "provider": "{'username': 'admin', 'host': '192.168.0.33', 'password': '********'}", 
       "retries": 10, 
       "ssh_keyfile": null, 
       "timeout": 10, 
       "username": "admin", 
       "waitfor": null 
      }, 
      "module_name": "ios_command" 
     }, 
     "item": "1", 
     "stdout": [ 
      " switchport access vlan 12" 
     ], 
     "stdout_lines": [ 
      [ 
       " switchport access vlan 12" 
      ] 
     ] 
    }, 
    "msg": "" 
} 
ok: [192.168.0.33] => (item={u'changed': False, '_ansible_no_log': False, u'stdout': [u' switchport access vlan 12'], '_ansible_item_result': True, 'item': u'2', 'invocation': {'module_name': u'ios_command', u'module_args': {u'authorize': False, u'username': u'admin', u'commands': [u'show run int Fa0/2 | incl switchport access vlan'], u'auth_pass': None, u'retries': 10, u'waitfor': None, u'interval': 1, u'host': u'192.168.0.33', u'ssh_keyfile': None, u'timeout': 10, u'provider': u"{'username': 'admin', 'host': '192.168.0.33', 'password': '********'}", u'password': u'VALUE_SPECIFIED_IN_NO_LOG_PARAMETER', u'port': 22}}, u'stdout_lines': [[u' switchport access vlan 12']]}) => { 
    "item": { 
     "changed": false, 
     "invocation": { 
      "module_args": { 
       "auth_pass": null, 
       "authorize": false, 
       "commands": [ 
        "show run int Fa0/2 | incl switchport access vlan" 
       ], 
       "host": "192.168.0.33", 
       "interval": 1, 
       "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER", 
       "port": 22, 
       "provider": "{'username': 'admin', 'host': '192.168.0.33', 'password': '********'}", 
       "retries": 10, 
       "ssh_keyfile": null, 
       "timeout": 10, 
       "username": "admin", 
       "waitfor": null 
      }, 
      "module_name": "ios_command" 
     }, 
     "item": "2", 
     "stdout": [ 
      " switchport access vlan 12" 
     ], 
     "stdout_lines": [ 
      [ 
       " switchport access vlan 12" 
      ] 
     ] 
    }, 
    "msg": "" 
} 
ok: [192.168.0.33] => (item={u'changed': False, '_ansible_no_log': False, u'stdout': [u' switchport access vlan 12'], '_ansible_item_result': True, 'item': u'3', 'invocation': {'module_name': u'ios_command', u'module_args': {u'authorize': False, u'username': u'admin', u'commands': [u'show run int Fa0/3 | incl switchport access vlan'], u'auth_pass': None, u'retries': 10, u'waitfor': None, u'interval': 1, u'host': u'192.168.0.33', u'ssh_keyfile': None, u'timeout': 10, u'provider': u"{'username': 'admin', 'host': '192.168.0.33', 'password': '********'}", u'password': u'VALUE_SPECIFIED_IN_NO_LOG_PARAMETER', u'port': 22}}, u'stdout_lines': [[u' switchport access vlan 12']]}) => { 
    "item": { 
     "changed": false, 
     "invocation": { 
      "module_args": { 
       "auth_pass": null, 
       "authorize": false, 
       "commands": [ 
        "show run int Fa0/3 | incl switchport access vlan" 
       ], 
       "host": "192.168.0.33", 
       "interval": 1, 
       "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER", 
       "port": 22, 
       "provider": "{'username': 'admin', 'host': '192.168.0.33', 'password': '********'}", 
       "retries": 10, 
       "ssh_keyfile": null, 
       "timeout": 10, 
       "username": "admin", 
       "waitfor": null 
      }, 
      "module_name": "ios_command" 
     }, 
     "item": "3", 
     "stdout": [ 
      " switchport access vlan 12" 
     ], 
     "stdout_lines": [ 
      [ 
       " switchport access vlan 12" 
      ] 
     ] 
    }, 
    "msg": "" 
} 

但是當我運行的代碼一樣這樣的：

- debug: msg="{{int_out.results[1].stdout}}" 

我得到這樣的迴應：

TASK [debug] ******************************************************************* 
ok: [192.168.0.33] => { 
    "msg": [ 
     " switchport access vlan 12" 
    ] 
} 

任何想法什麼是wron'g，我怎樣才能實現我的目標？

Answer 1

如果仔細查看int_out.results元素，您會注意到stdout是一個字符串列表，而stdout_lines是一個列表列表。
我懷疑ios_config模塊返回一個列表stdout（而不是command/shell模塊中的多行字符串），並且Ansible的標準結果處理器將任何stdout變量拆分成新列表。

所以，你只需要調整您的when:聲明如下：

when: item.stdout[0] == " switchport access vlan 12" 

訪問stdout列表的第一個元素。