ansible - 当每个匹配的键/值对时，在 Ansible 中合并列表

Question

我有两个字典列表(port_info 和 int_trunk)，当“端口”键的值匹配时，我试图合并它们，但并非每个端口都将在“int_trunk”中表示。在这种情况下，只需将“trunked_vlans”值留空即可。我正在使用“with_nested”来遍历列表。我似乎无法让输出做我想做的事。我已经尝试了 combine() 过滤器以及手动尝试创建变量但不能完全理解它。如何合并这两个列表？

---
- hosts: localhost
  connection: local
  gather_facts: no

  vars:
    trunk_ports: []
    non_trunk_ports: []
    new_port_info: []
    port_info: 
      - desc: "*** Voice Server Port ***"
        duplex: "a-full"
        port: "Gi1/0/1"
        speed: "a-1000"
        status: connected
        trunk_vlans: ""
        type: "10/100/1000BaseTX"
        vlan: 3
      - desc: "*** Voice Server Port ***"
        duplex: "a-full"
        port: "Gi1/0/2"
        speed: "a-1000"
        status: connected
        trunk_vlans: ""
        type: "10/100/1000BaseTX"
        vlan: 3
      - desc: "Some Port"
        duplex: auto
        port: "Gi1/0/3"
        speed: auto
        status: notconnect
        trunk_vlans: ""
        type: "10/100/1000BaseTX"
        vlan: 23
    int_trunk:
      - port: "Gi1/0/1"
        vlans: "1-50"
      - port: "Gi1/0/2"
        vlans: "50-60"

这个输出应该是:

port_info: 
  - desc: "*** Voice Server Port ***"
    duplex: "a-full"
    port: "Gi1/0/1"
    speed: "a-1000"
    status: connected
    trunk_vlans: "1-50"
    type: "10/100/1000BaseTX"
    vlan: 3
  - desc: "*** Voice Server Port ***"
    duplex: "a-full"
    port: "Gi1/0/2"
    speed: "a-1000"
    status: connected
    trunk_vlans: "50-60"
    type: "10/100/1000BaseTX"
    vlan: 3
  - desc: "Some Port"
    duplex: auto
    port: "Gi1/0/3"
    speed: auto
    status: notconnect
    trunk_vlans: ""
    type: "10/100/1000BaseTX"
    vlan: 23

这是我尝试过的事情之一:

---
- hosts: localhost
  connection: local
  gather_facts: no

  vars:
    trunk_ports: []
    non_trunk_ports: []
    new_port_info: []
    port_info: 
      - desc: "*** Voice Server Port ***"
        duplex: "a-full"
        port: "Gi1/0/1"
        speed: "a-1000"
        status: connected
        trunk_vlans: ""
        type: "10/100/1000BaseTX"
        vlan: 3
      - desc: "*** Voice Server Port ***"
        duplex: "a-full"
        port: "Gi1/0/2"
        speed: "a-1000"
        status: connected
        trunk_vlans: ""
        type: "10/100/1000BaseTX"
        vlan: 3
      - desc: " "
        duplex: auto
        port: "Gi1/0/3"
        speed: auto
        status: notconnect
        trunk_vlans: ""
        type: "10/100/1000BaseTX"
        vlan: 23
    int_trunk:
      - port: "Gi1/0/1"
        vlans: "1-50"
      - port: "Gi1/0/2"
        vlans: "50-60"

  tasks:
    - name: Merge trunk ports
      set_fact:
        trunk_ports: "{{ trunk_ports + [ { 'desc': item.0.desc, 'duplex': item.0.duplex, 'port': item.0.port, 'speed': item.0.speed, 'status
': item.0.status, 'trunk_vlans': item.1.vlans, 'type': item.0.type, 'vlan': item.0.vlan } ] }}"
      with_nested:
        - "{{ port_info }}"
        - "{{ int_trunk }}"
      when: item.0.port == item.1.port 

    - name: Merge non-trunk ports
      set_fact:
        non_trunk_ports: "{{ non_trunk_ports + [ { 'desc': item.0.desc, 'duplex': item.0.duplex, 'port': item.0.port, 'speed': item.0.speed,
 'status': item.0.status, 'trunk_vlans': item.0.trunk_vlans, 'type': item.0.type, 'vlan': item.0.vlan } ] }}"
      with_nested:
        - "{{ port_info }}"
        - "{{ int_trunk }}"
      when: item.0.port != item.1.port

    - name: Merge all ports
      set_fact:
        new_port_info: "{{ new_port_info + [item.0|combine(item.1)] }}"
      with_nested:
        - "{{ port_info }}"
        - "{{ trunk_ports }}"
      when: item.0.port == item.1.port

    - name: Echo
      debug: var=trunk_ports


    - name: Echo
      debug: var=non_trunk_ports

    - name: Echo
      debug: var=new_port_info

我最终得到端口 Gi1/0/1 和 Gi1/0/2，但没有 Gi1/0/3。

Answer 1

不确定是否有可以执行此操作的“一行”过滤。这是我想出的，首先解释流程:

1. 我们使用 2 个 set_fact 步骤填充 2 个列表中所有公共(public)端口的列表。
2. 我们将两个列表一起解析，当来自 port_info 的元素的端口属性等于来自 int_trunk 的元素时，我们合并/合并这两个字典。<
3. 完成了公共(public)条目的合并。现在我们需要再次解析 port_info 列表，并将所有在 int_trunk 中没有匹配元素的元素添加到 port_info_final 列表中。

我们在 port_info_final 列表中获得了合并元素和唯一元素。

剧本:

---
- hosts: localhost
  connection: local
  gather_facts: false
  vars:
    trunk_ports: []
    non_trunk_ports: []
    new_port_info: []
    port_info: 
      - desc: "*** Voice Server Port ***"
        duplex: "a-full"
        port: "Gi1/0/1"
        speed: "a-1000"
        status: connected
        trunk_vlans: ""
        type: "10/100/1000BaseTX"
        vlan: 3
      - desc: "*** Voice Server Port ***"
        duplex: "a-full"
        port: "Gi1/0/2"
        speed: "a-1000"
        status: connected
        trunk_vlans: ""
        type: "10/100/1000BaseTX"
        vlan: 3
      - desc: "Some Port"
        duplex: auto
        port: "Gi1/0/3"
        speed: auto
        status: notconnect
        trunk_vlans: ""
        type: "10/100/1000BaseTX"
        vlan: 23
    int_trunk:
      - port: "Gi1/0/1"
        vlans: "1-50"
      - port: "Gi1/0/2"
        vlans: "50-60"
    port_info_final: []

  tasks:

  - name: get the lists of ports per list
    set_fact:
      portlist_1: "{{ port_info | map(attribute='port') | list }}"
      portlist_2: "{{ int_trunk | map(attribute='port') | list }}"

  - name: get the ports that exist in port_info but not in int_trunk
    set_fact:
      ports_not_in_int_trunk: "{{ portlist_1 | difference(portlist_2) }}"

  - name: merge the dictionaries when the port is matched
    set_fact:
      port_info_final: "{{ port_info_final + [item[0] | combine(item[1])] }}"
    when: item[0].port == item[1].port
    loop: "{{ query('nested', int_trunk, port_info) }}"

  - name: add all the port_info elements that dont have entry in int_trunk
    set_fact:
      port_info_final: "{{ port_info_final + [item] }}"
    when: item.port in ports_not_in_int_trunk
    loop: "{{ port_info }}"

  - name: print results
    debug:
      msg: "{{ port_info_final }}"

结果:

TASK [print results] ************************************************************************************************************************************************************************************************
ok: [localhost] => {
    "msg": [
        {
            "desc": "*** Voice Server Port ***", 
            "duplex": "a-full", 
            "port": "Gi1/0/1", 
            "speed": "a-1000", 
            "status": "connected", 
            "trunk_vlans": "", 
            "type": "10/100/1000BaseTX", 
            "vlan": 3, 
            "vlans": "1-50"
        }, 
        {
            "desc": "*** Voice Server Port ***", 
            "duplex": "a-full", 
            "port": "Gi1/0/2", 
            "speed": "a-1000", 
            "status": "connected", 
            "trunk_vlans": "", 
            "type": "10/100/1000BaseTX", 
            "vlan": 3, 
            "vlans": "50-60"
        }, 
        {
            "desc": "Some Port", 
            "duplex": "auto", 
            "port": "Gi1/0/3", 
            "speed": "auto", 
            "status": "notconnect", 
            "trunk_vlans": "", 
            "type": "10/100/1000BaseTX", 
            "vlan": 23
        }
    ]
}

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

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