container_fs_usage_bytes metrics miss pod/container label

[tripitakav]

container_fs_usage_bytes metrics miss pod/container label

[chengjoey]

cadvisor/container/containerd/handler.go

Lines 174 to 185 in 570d8a7

	func (h *containerdContainerHandler) GetSpec() (info.ContainerSpec, error) {
	// TODO: Since we dont collect disk usage stats for containerd, we set hasFilesystem
	// to false. Revisit when we support disk usage stats for containerd
	hasFilesystem := false
	hasNet := h.includedMetrics.Has(container.NetworkUsageMetrics)
	spec, err := common.GetSpec(h.cgroupPaths, h.machineInfoFactory, hasNet, hasFilesystem)
	spec.Labels = h.labels
	spec.Envs = h.envs
	spec.Image = h.image
	return spec, err
	}

containerd not support fs disk usage yet

[chengjoey]

when use containerd cri, we could get mountinfo from proc/self/mountinfo like this:

2826 28 0:478 / /run/containerd/io.containerd.runtime.v2.task/k8s.io/02f14690a20e38c89d9f1c251b2b043c542e49d9aa62baa3408fb3e51d369819/rootfs rw,relatime shared:811 - overlay overlay rw,lowerdir=/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/66230/fs:/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/66153/fs:/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/66152/fs:/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/66151/fs:/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/59780/fs,upperdir=/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/66239/fs,workdir=/var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/66239/work,index=off

Therefore, when we query the disk usage of contianerd, we can use this directory/run/containerd/io.containerd.runtime.v2.task/k8s.io/02f14690a20e38c89d9f1c251b2b043c542e49d9aa62baa3408fb3e51d369819/rootfs

[chengjoey]

get disk usage by containerd rootfs:

[chengjoey]

#3502