```yaml
# 区分收集csc,erp,oms等不同命名空间的日志
# 区分收集的原因为：同一个index中字段数据不同会导致冲突，若无冲突可以一起收集
output.conf: |-
    # <match **> ## 收集所有日志
    # <match kubernetes.var.**_csc_** kubernetes.var.**_erp_** kubernetes.var.**_oms_** kubernetes.var.**_platform_** kubernetes.var.**_srm_**> ## 收集确定的命名空间服务中的日志
    <match kubernetes.var.**_csc_**>  ## 收集csc命名空间日志
      @id elasticsearch-csc  ## 与其他配置不同
      @type elasticsearch
      @log_level info
      type_name _doc
      include_tag_key true
      host elasticsearch-headless
      port 9200
      logstash_format true  ## logstash格式化index名称，默认以logstash开头的index
      logstash_prefix csc  ## logstash_format开启以后，设置index名称，则index为csc-yyyy.MM.dd
      request_timeout 15s
      reload_connections false
      reconnect_on_error true
      reload_on_failure true
      suppress_type_name true
      <buffer>
        @type file
        path /var/log/fluentd-buffers/kubernetes.system.csc.buffer  ## 与其他配置不同
        flush_mode interval
        flush_thread_count 2
        flush_interval 5s
        retry_type exponential_backoff
        retry_forever
        retry_max_interval 30
        chunk_limit_size 10M
        queue_limit_length 1
        total_limit_size 500M
        overflow_action block
      </buffer>
    </match>

    <match **>
      @id elasticsearch
      @type elasticsearch
      @log_level info
      type_name _doc
      include_tag_key true
      host elasticsearch-headless
      port 9200
      logstash_format true
      request_timeout 15s
      reload_connections false
      reconnect_on_error true
      reload_on_failure true
      suppress_type_name true
      <buffer>
        @type file
        path /var/log/fluentd-buffers/kubernetes.system.buffer
        flush_mode interval
        flush_thread_count 2
        flush_interval 5s
        retry_type exponential_backoff
        retry_forever
        retry_max_interval 30
        chunk_limit_size 10M
        queue_limit_length 1
        total_limit_size 500M
        overflow_action block
      </buffer>
    </match>
```