来自F5 bigip_command的可能的筛选器标准输出

Question

bigip_command:
  commands:
    - "tmsh list ltm policy {{ item }}"

这是我得到的输出：

    TASK [f5_maintenance : tmsh list policies] *************************************
task path: /tmp/bwrap_107256_wsbqhduw/awx_107256_ltm6_eq5/requirements_roles/f5_maintenance/tasks/f5_gather_facts.yml:125
<localhost> Using network group action bigip for bigip_command
<localhost> connection transport is rest
Using module file /usr/lib/python2.7/site-packages/ansible/modules/network/f5/bigip_command.py
Pipelining is enabled.
<localhost> ESTABLISH LOCAL CONNECTION FOR USER: awx
<localhost> EXEC /bin/sh -c '/usr/bin/python2 && sleep 0'
ok: [LSEL2401.site -> localhost] => (item=policy_test.net_policy) => {
    "ansible_loop_var": "item", 
    "changed": false, 
    "executed_commands": [
        "tmsh -c \\\\\\"list ltm policy policy_test.net_policy\\\\\\""
    ], 
    "invocation": {
        "module_args": {
            "chdir": null, 
            "commands": [
                "tmsh list ltm policy policy_test.net_policy"
            ], 
            "interval": 1, 
            "match": "all", 
            "provider": {
                "auth_provider": null, 
                "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER", 
                "server": "LSEL2401.site", 
                "server_port": 443, 
                "ssh_keyfile": null, 
                "timeout": null, 
                "transport": "rest", 
                "user": "TOWER", 
                "validate_certs": false
            }, 
            "retries": 10, 
            "transport": "rest", 
            "wait_for": null, 
            "warn": true
        }
    }, 
    "item": "policy_test.net_policy", 
    "stdout": [
        "ltm policy policy_test.net_policy {\\n    controls { forwarding persistence }\\n    last-modified 2021-09-24:21:53:22\\n    requires { http }\\n    rules {\\n        policy_test.net_rule1 {\\n            actions {\\n                0 {\\n                    forward\\n                    select\\n                    pool policy_test.net_pool1\\n                }\\n                1 {\\n                    persist\\n                    cookie-insert\\n                    name FSdefault\\n                }\\n            }\\n            conditions {\\n                0 {\\n                    http-uri\\n                    path\\n                    starts-with\\n                    values { / }\\n                }\\n            }\\n            ordinal 1\\n        }\\n        policy_test.net_rule2 {\\n            actions {\\n                0 {\\n                    forward\\n                    select\\n                    pool policy_test.net_pool2\\n                }\\n                1 {\\n                    persist\\n                    cookie-insert\\n                    name KSexpress\\n                }\\n            }\\n            conditions {\\n                0 {\\n                    http-uri\\n                    path\\n                    starts-with\\n                    values { /test }\\n                }\\n            }\\n        }\\n    }\\n    status published\\n    strategy first-match\\n}"
    ], 
    "stdout_lines": [
        [
            "ltm policy policy_test.net_policy {", 
            "    controls { forwarding persistence }", 
            "    last-modified 2021-09-24:21:53:22", 
            "    requires { http }", 
            "    rules {", 
            "        policy_test.net_rule1 {", 
            "            actions {", 
            "                0 {", 
            "                    forward", 
            "                    select", 
            "                    pool policy_test.net_pool1", 
            "                }", 
            "                1 {", 
            "                    persist", 
            "                    cookie-insert", 
            "                    name FSdefault", 
            "                }", 
            "            }", 
            "            conditions {", 
            "                0 {", 
            "                    http-uri", 
            "                    path", 
            "                    starts-with", 
            "                    values { / }", 
            "                }", 
            "            }", 
            "            ordinal 1", 
            "        }", 
            "        policy_test.net_rule2 {", 
            "            actions {", 
            "                0 {", 
            "                    forward", 
            "                    select", 
            "                    pool policy_test.net_pool2", 
            "                }", 
            "                1 {", 
            "                    persist", 
            "                    cookie-insert", 
            "                    name KSexpress", 
            "                }", 
            "            }", 
            "            conditions {", 
            "                0 {", 
            "                    http-uri", 
            "                    path", 
            "                    starts-with", 
            "                    values { /test }", 
            "                }", 
            "            }", 
            "        }", 
            "    }", 
            "    status published", 
            "    strategy first-match", 
            "}"
        ]
    ]
}

这是我的任务。

- name: Collect bigip facts
  bigip_device_info:
    gather_subset: 
      - ltm-policies
    provider: "{{ cli }}"
  register: policy_facts

- name: Policies
  set_fact:
    policy: "{{ policy_facts.ltm_policies|default({}) | to_json | from_json | json_query(query_string) }}"
  vars:
   query_string: "[?contains(name, '{{ app_fqdn }}')].name"

- name: policy name 
  debug:
    msg: "{{ policy }}"

- name: tmsh list policies
  bigip_command:
    commands:
     - "tmsh list ltm policy {{ item }} "
    provider: "{{ cli }}"
  delegate_to: localhost
  loop: "{{ policy }}"
  register: layer7_pools

- name: VIP Results stdout_lines
  debug: msg="{{ layer7_pools.results }}"

Answer 1

经过研究，我从F5文档中了解到，tmsh list的输出是声明性的，但不是JSON。对于JSON输出，他们引用了REST API。

由于stdout_lines的值是一个只有一个元素的列表，而stdout只是一个只包含换行符(\n)的字符串元素的列表，所以我将重点放在通过在字符串中进行搜索来获得所需的结果。

为此，我根据您提供的结果设置了一个测试

- name: Set result value for bigip_command tmsh list
  set_fact:
    layer7_pools:
      stdout: [
        "ltm policy policy_test.net {\n ... controls  strategy first-match\n}"
      ]
      stdout_lines: [
        [
          "ltm policy policy_test.net {",
          "    controls { forwarding }",
          ...
          "    strategy first-match",
          "}"
        ]
      ]

并设置以下过滤器。

- name: Show result, filter for pool names
  debug:
    msg: "{{ layer7_pools.stdout[0] | regex_findall('pool .*', multiline=True) }}"

TASK [Show result, filter for pool names] **********************************************************************************************************************
ok: [test.example.com] =>
  msg:
  - pool policy_test_rule1.net_pool
  - pool policy_test_rule2_pool

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