[QUESTION]: input_file插件采集容器日志，没有携带metadata信息

[PalanQu]

ilogtail通过daemonset部署，版本commit为d413393c79eae41c95bfce03b1e2c519372892ba，最后一个commit为2024年9月15日，采集配置如下，有两个问题

inputs:
  - Type: input_file
    FilePaths:
    - /log/*.info
    EnableContainerDiscovery: true
    AppendingLogPositionMeta: true
    AllowingIncludedByMultiConfigs: true
    CollectingContainersMeta: true
    ExternalK8sLabelTag:
      cluster: subApplication
    ContainerFilters: 
      IncludeK8sLabel:
        cluster: "^.*$"

1. 采集到的日志并没有携带metadata信息，例如采集到的日志如下

2024-10-17 19:44:21 {"__file_offset__":"4087590","logtime":"2024-10-17T19:44:20.109445","level":"INFO","logger":"src/allocator/free_space_syncer.cpp:119","thread":"00000085","bthread":"0000000100000916","xrayTraceId":"FACAFA77886CDEBA","msg":"sync free space info success, node num = 24","_prdline_":"base","expireDay":"14","__time__":"1729165460"}

2. ExternalK8sLabelTag没有按照预期将label中cluster放到subApplication字段