ansible - 将字符串附加到 Ansible 中的列表

Question

我正在尝试将字符串附加到 ansible 的列表中，所以基本上我将构建一个有效负载以删除 F5 GTM 网络设备中的一些拓扑记录。

我能够创建一个列表，其中包括相应拓扑记录的所有输出。对于输出的每一行，我需要附加一个字符串“删除”。

- name: Lookup Topology Records  
  bigip_command:
    user: admin
    password: password
    server: gtm.abc.com
    commands: "list gtm topology | grep -i '{{ item }}'"
    warn: no
    validate_certs: no
  register: topology_info
  delegate_to: localhost
  loop: "{{ gtm_pool }}"

- debug: var=topology_info

- name: Sanitize the Topology records of the Pool
  set_fact:
    clean_topology_info: "{{ clean_topology_info | default ([]) + item.stdout_lines  }}"
  loop: "{{ topology_info.results }}"

- debug: var=clean_topology_info


- name: Sanitized Topology Info
  vars:
    topology_item: "{{ item }}"
   set_fact:
     sanitized_topology_info: "{{ sanitized_topology_info | default ([]) + topology_item }}"
  loop: "{{ clean_topology_info }}"

- name: Build payload to delete the Topology Record
  set_fact:
    topology_payload: "{{ topology_payload | default([]) + ['delete'] + item }}"
  loop: "{{ clean_topology_info }}"

- debug: var=topology_payload

------------------------------------------------------------
Debug outputs(stdout_lines) as below :-

"gtm_pool": [
        "test-poo1", 
        "test-pool2"
    ]

debug of "topology_info" :-

"stdout_lines": [
                    [
                        "gtm topology ldns: subnet 10.10.10.0/24 server: pool /Common/test-pool1 {", 
                        "gtm topology ldns: subnet 10.8.22.0/24 server: pool /Common/test-pool1 {"
                    ]
                ]

"stdout_lines": [
                    [
                        "gtm topology ldns: subnet 0.0.0.0/0 server: pool /Common/test-pool2 {"
                    ]


debug of "clean_topology_info":-

"clean_topology_info": [
        [
                        "gtm topology ldns: subnet 10.10.10.0/24 server: pool /Common/test-pool1 {", 
                        "gtm topology ldns: subnet 10.8.22.0/24 server: pool /Common/test-pool1 {", 
        ], 
        [
            "gtm topology ldns: subnet 0.0.0.0/0 server: pool /Common/test-pool2 {",
        ]
    ]

debug of "sanitized_topology_info":-

"sanitized_topology_info": [
             "gtm topology ldns: subnet 10.10.10.0/24 server: pool /Common/test-pool1 {", 
                        "gtm topology ldns: subnet 10.8.22.0/24 server: pool /Common/test-pool1 {", 
           "gtm topology ldns: subnet 0.0.0.0/0 server: pool /Common/test-pool2 {"
        ]



debug of "topology_payload":-

"topology_payload": [
        "delete", 
        "gtm topology ldns: subnet 10.10.10.0/24 server: pool /Common/test-pool1 {", 
                        "gtm topology ldns: subnet 10.8.22.0/24 server: pool /Common/test-pool1 {",  
        "delete", 
       "gtm topology ldns: subnet 0.0.0.0/0 server: pool /Common/test-pool2 {"
    ]


Expected output of topology_payload should be like :-

Basically i need to append a string 'delete' infront of the each output.

"topology_payload": [ 
        "delete gtm topology ldns: subnet 10.10.10.0/24 server: pool /Common/test-pool1 {", 
                        "delete gtm topology ldns: subnet 10.8.22.0/24 server: pool /Common/test-pool1 {",  
       "delete gtm topology ldns: subnet 0.0.0.0/0 server: pool /Common/test-pool2 {"
    ]

topology_payload 的预期输出应该是这样的：-

基本上我需要在每个输出前面附加一个字符串“删除”。

“topology_payload”：[“删除 gtm 拓扑 ldns：子网 10.10.10.0/24 服务器：池 /Common/test-pool1 {”，“删除 gtm 拓扑 ldns：子网 10.8.22.0/24 服务器：池 /Common/test-pool1 {",
"删除 gtm 拓扑 ldns: 子网 0.0.0.0/0 服务器: pool /Common/test-pool2 {" ]

标签： ansible

Answer 1

这是你要找的吗？

      vars:
        info: [ 'a', 'b', 'c' ]
      tasks:
        - set_fact:
            payload: "{{ payload|default([]) + [ 'delete ' ~ item ] }}"
          loop: "{{ info }}"
        - debug:
            var: payload

给出：

    "payload": [
        "delete a", 
        "delete b", 
        "delete c"
    ]

追加删除所有盯着的东西gtm topology

      vars:
        info: [ 'a', 'gtm topology', 'c' ]
      tasks:
        - set_fact:
            payload: "{{ payload|default([]) + [ 'delete ' ~ item ] }}"
          loop: "{{ info }}"
          when: item is search('^gtm topology')
        - debug:
            var: payload

给出：

      payload:
      - delete gtm topology

除了上述条件和

输出到 test-pool1

使用filter_plugins

    def list_search(l, x):
        r = re.compile(x)
        return list(filter(r.match, l))
    def list_index(l, x, *i):
        if len(i) == 0:
            return l.index(x) if x in l else -1
        elif len(i) == 1:
            return l.index(x, i[0]) if x in l[i[0]:] else -1
        else:
            return l.index(x, i[0], i[1]) if x in l[i[0]:i[1]] else -1

下面的戏

      vars:
        info: [ 'a', 'gtm topology 1', 'c', 'test-pool1', 'gtm topology 2', 'd' ]
        stop_regex: '.*pool1.*'
      tasks:
        - set_fact: # Find elements that match stop_regex
            stop_elements: "{{ info|list_search(stop_regex) }}"
        - set_fact: # Find index of the fist element that match stop_regex
            stop_index: "{{ info|list_index(stop_elements.0) }}"
        - set_fact: # Select and transform elements of the list
            payload: "{{ payload|default([]) + [ 'delete ' ~ item ] }}"
          loop: "{{ info[0:stop_index|int] }}"
          when: item is search('^gtm topology')
        - debug:
            var: payload

给出：

      payload:
      - delete gtm topology 1