worker01:~ # tree /var/lib/containers/storage/ -L 1
/var/lib/containers/storage/
├── mounts
├── overlay
├── overlay-containers
├── overlay-images
├── overlay-layers
├── storage.lock
└── tmp
# kubectl describe nodes master01
Name: master01
Roles: master
Labels: beta.kubernetes.io/arch=amd64
beta.kubernetes.io/os=linux
kubernetes.io/arch=amd64
kubernetes.io/hostname=master01
kubernetes.io/os=linux
node-role.kubernetes.io/master=
Annotations: io.cilium.network.ipv4-cilium-host: 10.244.0.1
io.cilium.network.ipv4-health-ip: 10.244.0.144
io.cilium.network.ipv4-pod-cidr: 10.244.0.0/24
io.cilium.network.ipv6-cilium-host: f00d::af4:0:0:1
io.cilium.network.ipv6-health-ip: f00d::af4:0:0:8ce1
io.cilium.network.ipv6-pod-cidr: f00d::af4:0:0:0/96
kubeadm.alpha.kubernetes.io/cri-socket: /var/run/crio/crio.sock
node.alpha.kubernetes.io/ttl: 0
volumes.kubernetes.io/controller-managed-attach-detach: true
CreationTimestamp: Sun, 06 Oct 2019 16:03:08 +0800
Taints: node-role.kubernetes.io/master:NoSchedule
Unschedulable: false
Conditions:
Type Status LastHeartbeatTime LastTransitionTime Reason Message
---- ------ ----------------- ------------------ ------ -------
NetworkUnavailable False Wed, 09 Oct 2019 09:48:15 +0800 Wed, 09 Oct 2019 09:48:15 +0800 CiliumIsUp Cilium is running on this node
MemoryPressure False Wed, 09 Oct 2019 10:41:58 +0800 Sun, 06 Oct 2019 16:03:00 +0800 KubeletHasSufficientMemory kubelet has sufficient memory available
DiskPressure False Wed, 09 Oct 2019 10:41:58 +0800 Sun, 06 Oct 2019 16:03:00 +0800 KubeletHasNoDiskPressure kubelet has no disk pressure
PIDPressure False Wed, 09 Oct 2019 10:41:58 +0800 Sun, 06 Oct 2019 16:03:00 +0800 KubeletHasSufficientPID kubelet has sufficient PID available
Ready True Wed, 09 Oct 2019 10:41:58 +0800 Sun, 06 Oct 2019 16:08:28 +0800 KubeletReady kubelet is posting ready status. AppArmor enabled
Addresses:
InternalIP: 172.200.50.70
Hostname: master01
Capacity:
cpu: 4
ephemeral-storage: 17394Mi
hugepages-1Gi: 0
hugepages-2Mi: 0
memory: 3746524Ki
pods: 110
Allocatable:
cpu: 4
ephemeral-storage: 16415037823
hugepages-1Gi: 0
hugepages-2Mi: 0
memory: 3644124Ki
pods: 110
System Info:
Machine ID: 21c43aad5388499bba20966cf4aad01a
System UUID: e5744d56-fe06-ebb8-779a-ed0dfc4f6e07
Boot ID: bff71ca7-f8d5-40ec-823a-017cda604703
Kernel Version: 4.12.14-197.18-default
OS Image: SUSE Linux Enterprise Server 15 SP1
Operating System: linux
Architecture: amd64
Container Runtime Version: cri-o://1.15.0
Kubelet Version: v1.15.2
Kube-Proxy Version: v1.15.2
PodCIDR: 10.244.0.0/24
Non-terminated Pods: (9 in total)
Namespace Name CPU Requests CPU Limits Memory Requests Memory Limits AGE
--------- ---- ------------ ---------- --------------- ------------- ---
kube-system cilium-d6krt 0 (0%) 0 (0%) 0 (0%) 0 (0%) 2d18h
kube-system coredns-69c4947958-jq5fj 100m (2%) 0 (0%) 70Mi (1%) 170Mi (4%) 2d18h
kube-system coredns-69c4947958-m29fz 100m (2%) 0 (0%) 70Mi (1%) 170Mi (4%) 2d18h
kube-system etcd-master01 0 (0%) 0 (0%) 0 (0%) 0 (0%) 2d18h
kube-system kube-apiserver-master01 250m (6%) 0 (0%) 0 (0%) 0 (0%) 2d18h
kube-system kube-controller-manager-master01 200m (5%) 0 (0%) 0 (0%) 0 (0%) 2d18h
kube-system kube-proxy-2f57p 0 (0%) 0 (0%) 0 (0%) 0 (0%) 2d18h
kube-system kube-scheduler-master01 100m (2%) 0 (0%) 0 (0%) 0 (0%) 2d18h
kube-system kured-5vhdw 0 (0%) 0 (0%) 0 (0%) 0 (0%) 2d18h
Allocated resources:
(Total limits may be over 100 percent, i.e., overcommitted.)
Resource Requests Limits
-------- -------- ------
cpu 750m (18%) 0 (0%)
memory 140Mi (3%) 340Mi (9%)
ephemeral-storage 0 (0%) 0 (0%)
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Starting 54m kubelet, master01 Starting kubelet.
Normal NodeHasSufficientMemory 54m (x8 over 54m) kubelet, master01 Node master01 status is now: NodeHasSufficientMemory
Normal NodeHasNoDiskPressure 54m (x8 over 54m) kubelet, master01 Node master01 status is now: NodeHasNoDiskPressure
Normal NodeHasSufficientPID 54m (x7 over 54m) kubelet, master01 Node master01 status is now: NodeHasSufficientPID
Normal NodeAllocatableEnforced 54m kubelet, master01 Updated Node Allocatable limit across pods
Warning readOnlySysFS 54m kube-proxy, master01 CRI error: /sys is read-only: cannot modify conntrack limits, problems may arise later (If running Docker, see docker issue #24000)
Normal Starting 54m kube-proxy, master01 Starting kube-proxy.
# cat /etc/crio/crio.conf | grep -A 10 crio.network
# The crio.network table containers settings pertaining to the management of
# CNI plugins.
[crio.network]
# Path to the directory where CNI configuration files are located.
network_dir = "/etc/cni/net.d/"