[QUESTION]:DaemonSet采集容器文件的最小化挂载配置

[scheshan]

按照文档，要采集容器文件，部署DaemonSet的时候还要挂载根目录。

        - hostPath:
            path: /
            type: Directory
          name: root

这个路径太大了，我们准备按需要挂载。我们CRI是containerd，我把rootfs、挂载卷、标准输出的几个路径都单独挂载了

        volumeMounts:
            - mountPath: /var/run                       # for container runtime socket
              name: run
            - mountPath: /logtail_host/home/containerd                  # for log access on the node
              mountPropagation: HostToContainer
              name: containerd
              readOnly: true
            - mountPath: /logtail_host/home/kubelet                  # for log access on the node
              mountPropagation: HostToContainer
              name: kubelet
              readOnly: true
            - mountPath: /logtail_host/var/log                  # for log access on the node
              mountPropagation: HostToContainer
              name: varlog
              readOnly: true
            - mountPath: /home/ilogtail/ilogtail-2.0.4/checkpoint # for checkpoint between container restart
              name: checkpoint

    volumes:
        - hostPath:
            path: /var/run
            type: Directory
          name: run
        - hostPath:
            path: /home/containerd/
            type: Directory
          name: containerd
        - hostPath:
            path: /home/kubelet/
            type: Directory
          name: kubelet
        - hostPath:
            path: /var/log/
            type: Directory
          name: varlog
        - hostPath:
            path: /etc/ilogtail/checkpoint
            type: DirectoryOrCreate
          name: checkpoint

这样的效果是，如果容器日志文件没有挂载，就采集不到了。还需要啥额外的文件要挂载嘛

[Takuka0311]

挂载/是因为loongcollector采集日志，是通过容器运行时socket获取容器内文件/标准输出在节点上的位置，然后实际采集的是节点的路径。如果不挂载/，且容器日志文件不挂载，那么即使通过socket获取到了文件位置，loongcollector也访问不到