kubernetes部署第一个应用案例
对比有无-o wide参数的区别
kubectl get pod --all-namespaces
kubectl get pod --all-namespaces -o wide
如下，查看所有Pod信息，加上-o wide参数，能看到每个Pod的ip和k8s节点等信息，看的多了
[machangwei@mcw7 ~]$ kubectl get pod --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system coredns-6d8c4cb4d-2296m 1/1 Running 1 (4h52m ago) 8h
kube-system coredns-6d8c4cb4d-lphb2 1/1 Running 1 (4h52m ago) 8h
kube-system etcd-mcw7 1/1 Running 3 8h
kube-system kube-apiserver-mcw7 1/1 Running 2 8h
kube-system kube-controller-manager-mcw7 1/1 Running 4 (4h53m ago) 8h
kube-system kube-flannel-ds-5pxmj 0/1 CrashLoopBackOff 49 (59s ago) 3h51m
kube-system kube-flannel-ds-8gzfq 1/1 Running 0 4h57m
kube-system kube-flannel-ds-s4qmj 0/1 CrashLoopBackOff 42 (80s ago) 3h14m
kube-system kube-proxy-4lmsx 1/1 Running 0 3h51m
kube-system kube-proxy-c5zmm 1/1 Running 0 8h
kube-system kube-proxy-npmtv 1/1 Running 0 3h14m
kube-system kube-scheduler-mcw7 1/1 Running 3 (4h53m ago) 8h
[machangwei@mcw7 ~]$
[machangwei@mcw7 ~]$
[machangwei@mcw7 ~]$ kubectl get pod --all-namespaces -o wide
NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
kube-system coredns-6d8c4cb4d-2296m 1/1 Running 1 (4h59m ago) 8h 10.244.0.3 mcw7 <none> <none>
kube-system coredns-6d8c4cb4d-lphb2 1/1 Running 1 (4h59m ago) 8h 10.244.0.2 mcw7 <none> <none>
kube-system etcd-mcw7 1/1 Running 3 8h 10.0.0.137 mcw7 <none> <none>
kube-system kube-apiserver-mcw7 1/1 Running 2 8h 10.0.0.137 mcw7 <none> <none>
kube-system kube-controller-manager-mcw7 1/1 Running 4 (4h59m ago) 8h 10.0.0.137 mcw7 <none> <none>
kube-system kube-flannel-ds-5pxmj 0/1 CrashLoopBackOff 50 (2m18s ago) 3h58m 10.0.0.138 mcw8 <none> <none>
kube-system kube-flannel-ds-8gzfq 1/1 Running 0 5h4m 10.0.0.137 mcw7 <none> <none>
kube-system kube-flannel-ds-s4qmj 0/1 CrashLoopBackOff 43 (2m42s ago) 3h21m 10.0.0.139 mcw9 <none> <none>
kube-system kube-proxy-4lmsx 1/1 Running 0 3h58m 10.0.0.138 mcw8 <none> <none>
kube-system kube-proxy-c5zmm 1/1 Running 0 8h 10.0.0.137 mcw7 <none> <none>
kube-system kube-proxy-npmtv 1/1 Running 0 3h21m 10.0.0.139 mcw9 <none> <none>
kube-system kube-scheduler-mcw7 1/1 Running 3 (4h59m ago) 8h 10.0.0.137 mcw7 <none> <none>
[machangwei@mcw7 ~]$
查看kubelet服务
如下：普通用户加上sudo查看状态信息，展示的信息更多。这是kubernetes中，唯一没有以容器形式运行的Kubernertes组件
[machangwei@mcw7 ~]$ systemctl status kubelet.service
● kubelet.service - kubelet: The Kubernetes Node Agent
Loaded: loaded (/usr/lib/systemd/system/kubelet.service; enabled; vendor preset: disabled)
Drop-In: /usr/lib/systemd/system/kubelet.service.d
└─10-kubeadm.conf
Active: active (running) since Mon 2022-01-03 20:54:48 CST; 8h ago
Docs: https://kubernetes.io/docs/
Main PID: 41877 (kubelet)
Memory: 65.6M
CGroup: /system.slice/kubelet.service
└─41877 /usr/bin/kubelet --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf --config=/var/lib/kubelet/config.ya...
[machangwei@mcw7 ~]$
[machangwei@mcw7 ~]$
[machangwei@mcw7 ~]$ sudo systemctl status kubelet.service
● kubelet.service - kubelet: The Kubernetes Node Agent
Loaded: loaded (/usr/lib/systemd/system/kubelet.service; enabled; vendor preset: disabled)
Drop-In: /usr/lib/systemd/system/kubelet.service.d
└─10-kubeadm.conf
Active: active (running) since Mon 2022-01-03 20:54:48 CST; 8h ago
Docs: https://kubernetes.io/docs/
Main PID: 41877 (kubelet)
Memory: 65.6M
CGroup: /system.slice/kubelet.service
└─41877 /usr/bin/kubelet --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf --config=/var/lib/kubelet/config.ya... Jan 04 00:45:22 mcw7 kubelet[41877]: I0104 00:45:22.882382 41877 trace.go:205] Trace[1175956662]: "iptables ChainExists" (04-Jan-2022 00:45:06.975) (total time: 15906ms):
Jan 04 00:45:22 mcw7 kubelet[41877]: Trace[1175956662]: [15.906635619s] [15.906635619s] END
Jan 04 00:45:22 mcw7 kubelet[41877]: W0104 00:45:22.908527 41877 reflector.go:442] k8s.io/client-go/informers/factory.go:134: watch of *v1.RuntimeClass ended with: an error ...
Jan 04 00:45:22 mcw7 kubelet[41877]: W0104 00:45:22.908592 41877 reflector.go:442] k8s.io/kubernetes/pkg/kubelet/config/apiserver.go:66: watch of *v1.Pod ended with: an erro...
Jan 04 00:45:23 mcw7 kubelet[41877]: W0104 00:45:22.909431 41877 reflector.go:442] object-"kube-system"/"kube-flannel-cfg": watch of *v1.ConfigMap ended with: an error on th...
Jan 04 00:45:23 mcw7 kubelet[41877]: W0104 00:45:22.909490 41877 reflector.go:442] object-"kube-system"/"kube-proxy": watch of *v1.ConfigMap ended with: an error...m succeeding
Jan 04 00:45:23 mcw7 kubelet[41877]: E0104 00:45:22.685903 41877 event.go:276] Unable to write event: '&v1.Event{TypeMeta:v1.TypeMeta{Kind:"", APIVersion:""}, Ob...55", Generat
Jan 04 00:45:24 mcw7 kubelet[41877]: E0104 00:45:24.372904 41877 kubelet.go:2157] "Housekeeping took longer than 15s" err="housekeeping took too long" seconds=43.320536225
Jan 04 00:45:33 mcw7 kubelet[41877]: I0104 00:45:33.740561 41877 scope.go:110] "RemoveContainer" containerID="742e24b700514948f23ae7b06ded37b1c9234a05ac13fdd08f80aab0889c35ad"
Jan 04 00:45:33 mcw7 kubelet[41877]: I0104 00:45:33.879840 41877 scope.go:110] "RemoveContainer" containerID="de11102a90f955da94d5e316b3ada4adbfef6cc7b60cbae25c43f7396b0407a3"
Hint: Some lines were ellipsized, use -l to show in full.
应用部署案例：httpd(一个问题解决：/run/flannel/subnet.env: no such file or directory)
--replicas已经被弃用了，无法kubectl run指定副本数
下面包含遇到的 一个问题：/run/flannel/subnet.env: no such file or directory
部署应用
[machangwei@mcw7 ~]$ kubectl run httpd-app --image=httpd --replicas=1
Error: unknown flag: --replicas
See 'kubectl run --help' for usage.
[machangwei@mcw7 ~]$ kubectl run httpd-app --image=httpd --env="replicas=2" #将它放在里面，
pod/httpd-app created #但是副本是默认的1，这样env跟副本没关系
查看部署的应用
[machangwei@mcw7 ~]$ kubectl get deployment #当前没有部署好 的应用
No resources found in default namespace.
[machangwei@mcw7 ~]$ kubectl get pod #查看刚刚部署的应用情况，这里状态一直是这样的ContainerCreating，5分钟过去还是么有改变
NAME READY STATUS RESTARTS AGE
httpd-app 0/1 ContainerCreating 0 2m1s
[machangwei@mcw7 ~]$ kubectl get pod -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
httpd-app 0/1 ContainerCreating 0 1
查看跑起来的容器有哪些，看刚刚创建的容器POD详情
[machangwei@mcw7 ~]$ kubectl get pod --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
default httpd-app 0/1 ContainerCreating 0 6m3s
kube-system coredns-6d8c4cb4d-2296m 1/1 Running 1 (5h58m ago) 9h
kube-system coredns-6d8c4cb4d-lphb2 1/1 Running 1 (5h58m ago) 9h
kube-system etcd-mcw7 1/1 Running 3 9h
kube-system kube-apiserver-mcw7 1/1 Running 2 9h
kube-system kube-controller-manager-mcw7 1/1 Running 4 (5h58m ago) 9h
kube-system kube-flannel-ds-5pxmj 0/1 CrashLoopBackOff 61 (4m38s ago) 4h57m
kube-system kube-flannel-ds-8gzfq 1/1 Running 0 6h3m
kube-system kube-flannel-ds-s4qmj 0/1 CrashLoopBackOff 55 (30s ago) 4h20m
kube-system kube-proxy-4lmsx 1/1 Running 0 4h57m
kube-system kube-proxy-c5zmm 1/1 Running 0 9h
kube-system kube-proxy-npmtv 1/1 Running 0 4h20m
kube-system kube-scheduler-mcw7 1/1 Running 3 (5h58m ago) 9h
由上面可知，刚刚部署的应用是 httpd-app ，namespace是default。状态是ContainerCreating，没有ready。而且只有一个，不是两个副本
根据上面的信息查看部署详情。貌似我看到 Environment: replicas: 2，这里应该是当成系统环境变量了
[machangwei@mcw7 ~]$ kubectl describe pod httpd-app --namespace=default
Name: httpd-app
Namespace: default
Priority: 0
Node: mcw9/10.0.0.139
Start Time: Tue, 04 Jan 2022 06:38:04 +0800
Labels: run=httpd-app
Annotations: <none>
Status: Pending
IP:
IPs: <none>
Containers:
httpd-app:
Container ID:
Image: httpd
Image ID:
Port: <none>
Host Port: <none>
State: Waiting
Reason: ContainerCreating
Ready: False
Restart Count: 0
Environment:
replicas: 2
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-728h9 (ro)
Conditions:
Type Status
Initialized True
Ready False
ContainersReady False
PodScheduled True
Volumes:
kube-api-access-728h9:
Type: Projected (a volume that contains injected data from multiple sources)
TokenExpirationSeconds: 3607
ConfigMapName: kube-root-ca.crt
ConfigMapOptional: <nil>
DownwardAPI: true
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 7m3s default-scheduler Successfully assigned default/httpd-app to mcw9
Warning FailedCreatePodSandBox 6m56s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "80e204314b98b32c3ec47b12288e6888ef3a6cd4923a6e7ee9e77a072ef1189d" network for pod "httpd-app": networkPlugin cni failed to set up pod "httpd-app_default" network: open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m54s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "1db6657c883c79ff176ce5523f4e6e7dbd3a65278cf20777cf7e870f7b17473f" network for pod "httpd-app": networkPlugin cni failed to set up pod "httpd-app_default" network: open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m47s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "e2dc2971e915be8a693190d244bbd2b4c31a86ecc5ed7f11d48b89f913121cd2" network for pod "httpd-app": networkPlugin cni failed to set up pod "httpd-app_default" network: open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m34s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "c8a67cd41221a857c1795bf9739ecc68970fca82a06680b5093e915a48762b9c" network for pod "httpd-app": networkPlugin cni failed to set up pod "httpd-app_default" network: open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m33s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "574f061c8b01b9ac54a72d81dee6d8844cf375d7862335590a2a38ed66fcefa1" network for pod "httpd-app": networkPlugin cni failed to set up pod "httpd-app_default" network: open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m32s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "87f12760cfe8079bd3fc709327bd99f93b1cf2284b9832f748937a98db25a6d5" network for pod "httpd-app": networkPlugin cni failed to set up pod "httpd-app_default" network: open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m31s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "eb12e226a4233698e8aef1618910cfaad49be474363be9243fd2f9eced60f754" network for pod "httpd-app": networkPlugin cni failed to set up pod "httpd-app_default" network: open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m30s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "19c042430da85875f567bb9a872a559c423fc25acef91ffa154795e3bd8bbd75" network for pod "httpd-app": networkPlugin cni failed to set up pod "httpd-app_default" network: open /run/flannel/subnet.env: no such file or directory
Warning FailedCreatePodSandBox 6m29s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "670f4e24adcbe325b2b77a01a7a4e05d483ceb95dbcadf97bdf26dff1afd171d" network for pod "httpd-app": networkPlugin cni failed to set up pod "httpd-app_default" network: open /run/flannel/subnet.env: no such file or directory
Normal SandboxChanged 6m25s (x12 over 6m55s) kubelet Pod sandbox changed, it will be killed and re-created.
Warning FailedCreatePodSandBox 116s (x251 over 6m28s) kubelet (combined from similar events): Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "59edf6c07ceb9dc2db9eb5ba0a0b7263de5a2ab70099ba48c09a6867ef2e8084" network for pod "httpd-app": networkPlugin cni failed to set up pod "httpd-app_default" network: open /run/flannel/subnet.env: no such file or directory
[machangwei@mcw7 ~]$
journalctl -u kubelet
journalctl -u kubelet 这个命令普通用户不能用，root在各个节点都能用，但是不太方便找错误信息，我只会一点点往下拖进度
[root@mcw8 ~]$ journalctl -u kubelet
-- Logs begin at Mon 2022-01-03 17:32:08 CST, end at Tue 2022-01-04 06:58:19 CST. --
Jan 03 18:10:12 mcw8 systemd[1]: Started kubelet: The Kubernetes Node Agent.
Jan 03 18:10:12 mcw8 systemd[1]: Starting kubelet: The Kubernetes Node Agent...
Jan 03 18:10:13 mcw8 kubelet[1940]: E0103 18:10:13.589113 1940 server.go:205] "Failed to load kubelet config file" err="failed to load Kubelet config file /var/lib/kubelet/con
Jan 03 18:10:13 mcw8 systemd[1]: kubelet.service: main process exited, code=exited, status=1/FAILURE
Jan 03 18:10:13 mcw8 systemd[1]: Unit kubelet.service entered failed state.
上面看到错误信息是：Failed to create pod sandbox: ...open /run/flannel/subnet.env: no such file or directory
然后我用root看了下，这个文件是存在的，
因为我是普通用户执行部署应用的，部署报错没有这个文件，会不会是我没有它的写权限呢？我是修改这个文件设置其它人可以写或者是
用root去部署应用就可以了吗？试一下
[root@mcw7 ~]$ ls /run/flannel/subnet.env -l
-rw-r--r-- 1 root root 96 Jan 4 00:42 /run/flannel/subnet.env
试试root部署应用
[root@mcw7 ~]$ kubectl run mcw1httpd-app --image=httpd #我用root部署应用，但是报错了
The connection to the server localhost:8080 was refused - did you specify the right host or port?
[machangwei@mcw7 ~]$ kubectl run mcw1httpd-app --image=httpd #用普通用户就可以。果然root部署应用，好像哪里有点问题
pod/mcw1httpd-app created
[machangwei@mcw7 ~]$ kubectl get pod
NAME READY STATUS RESTARTS AGE
httpd-app 0/1 ContainerCreating 0 31m
mcw1httpd-app 0/1 ContainerCreating 0 66s
[machangwei@mcw7 ~]$ kubectl get pod --all-namespaces
[machangwei@mcw7 ~]$ kubectl describe pod httpd-app --namespace=default #根据命令查出容器创建所在的节点，
Name: httpd-app
Namespace: default
Priority: 0
Node: mcw9/10.0.0.139 #是mcw9节点。
于是从mcw9节点上去查看，发现有httpd-app容器不断的在销毁和重新创建。跟据kubectl describe pod httpd-app --namespace=default查出的后面的详情，那也是有很多个记录，应该是重试记录。
[root@mcw9 ~]$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
881e2618fa9d registry.aliyuncs.com/google_containers/kube-proxy "/usr/local/bin/kube…" 5 hours ago Up 5 hours k8s_kube-proxy_kube-proxy-npmtv_kube-system_7f6b0d03-0d35-48ae-b091-5f1e0618ba85_0
75e85cb833df registry.aliyuncs.com/google_containers/pause:3.6 "/pause" 5 hours ago Up 5 hours k8s_POD_kube-proxy-npmtv_kube-system_7f6b0d03-0d35-48ae-b091-5f1e0618ba85_0
625efe596472 registry.aliyuncs.com/google_containers/pause:3.6 "/pause" 5 hours ago Up 5 hours k8s_POD_kube-flannel-ds-s4qmj_kube-system_a8082592-8c92-4c48-98dc-c6b52ebb9498_0
[root@mcw9 ~]$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d7f65cd3d025 registry.aliyuncs.com/google_containers/pause:3.6 "/pause" 1 second ago Up Less than a second k8s_POD_httpd-app_default_bb6090a2-b5e4-48a3-99b5-082bcc8f8d13_1934
主节点上看kubectl describe pod httpd-app
--namespace=default报错信息，是没有/run/flannel/subnet.env文件。n，但是在node节点是不存在这个文件的。；这个文件是属于flannel网络的。那么，是否是主节点让node节点创建容器，node节点没有要在node本地找这个文件吗？如果是，那么岂不是node本地也应该创建flannel网络呢？刚刚看了下资料。貌似架构图中是，每个节点都需要部署flannel服务的
Warning FailedCreatePodSandBox 116s (x251 over 6m28s) kubelet (combined from similar events): Failed to create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "59edf6c07ceb9dc2db9eb5ba0a0b7263de5a2ab70099ba48c09a6867ef2e8084" network for pod "httpd-app": networkPlugin cni failed to set up pod "httpd-app_default" network: open /run/flannel/subnet.env: no such file or directory
可是我再node节点上 看了下，是部署了这个flannel网络的。那么为什么node节点没有/run/flannel/subnet.env这个文件呢，无法部署好应用是否和它有关系呢？
[root@mcw8 ~]$ docker ps |awk '{print $NF}'
NAMES
k8s_kube-proxy_kube-proxy-4lmsx_kube-system_fb743f5c-0f44-43a7-ad7e-78817ddafc12_0
k8s_POD_kube-flannel-ds-5pxmj_kube-system_0972d5b3-a774-44cc-94b1-6765ec8f4256_0
k8s_POD_kube-proxy-4lmsx_kube-system_fb743f5c-0f44-43a7-ad7e-78817ddafc12_0
[root@mcw8 ~]$
网上解决方案：open /run/flannel/subnet.env: no such file or directory
查看pod的信息时发现报错：open /run/flannel/subnet.env: no such file or directory
一是查看各个节点，包括master 节点是否有/run/flannel/subnet.env，内容应该是类似如下：
FLANNEL_NETWORK=10.244.0.0/16
FLANNEL_SUBNET=10.244.0.1/24
FLANNEL_MTU=1450
FLANNEL_IPMASQ=true
若有节点没有该文件那就拷贝一份。
二是在kubeadm init时是否添加标签--pod-network-cidr=10.244.0.0/16这样式的。如果环境允许可以 kubeadm reset，再重新init。
查看node节点，有目录但是没有文件
root@mcw8 ~]$ ls /run/flannel/
[root@mcw8 ~]$ [root@mcw9 ~]$ ls /run/flannel/
[root@mcw9 ~]$
在master节点，将这个文件复制过去
[root@mcw7 ~]$ ls /run/flannel/subnet.env
/run/flannel/subnet.env
[root@mcw7 ~]$ scp /run/flannel/subnet.env 10.0.0.138:/run/flannel/
root@10.0.0.138's password:
subnet.env 100% 96 230.1KB/s 00:00
[root@mcw7 ~]$ scp /run/flannel/subnet.env 10.0.0.139:/run/flannel/
root@10.0.0.139's password:
subnet.env 100% 96 88.6KB/s 00:00
[root@mcw7 ~]$
然后在master节点用普通用户获取pod，发现有一个部署的应用已经是ready了，状态已经是running了
[machangwei@mcw7 ~]$ kubectl get pod
NAME READY STATUS RESTARTS AGE
httpd-app 1/1 Running 0 63m
mcw1httpd-app 0/1 ContainerCreating 0 33m
打完上面的字再查看，部署的两个应用都好了
[machangwei@mcw7 ~]$ kubectl get pod
NAME READY STATUS RESTARTS AGE
httpd-app 1/1 Running 0 64m
mcw1httpd-app 1/1 Running 0 34m
部署的应用 POD 状态是running后信息查看
[machangwei@mcw7 ~]$ kubectl get pod #获取pod信息，刚刚部署的两个应用，状态running
NAME READY STATUS RESTARTS AGE
httpd-app 1/1 Running 0 67m
mcw1httpd-app 1/1 Running 0 37m
[machangwei@mcw7 ~]$ kubectl get pod -o wide #加上参数，可以看到ip和node节点，ip是一样的，不知道咋回事
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
httpd-app 1/1 Running 0 67m 10.244.0.2 mcw9 <none> <none>
mcw1httpd-app 1/1 Running 0 37m 10.244.0.2 mcw8 <none> <none>
[machangwei@mcw7 ~]$ kubectl get deployment
No resources found in default namespace.
[machangwei@mcw7 ~]$ kubectl get pod --all-namespaces #如下可以看到刚刚部署的两个应用，都是属于default的namespace
NAMESPACE NAME READY STATUS RESTARTS AGE
default httpd-app 1/1 Running 0 69m
default mcw1httpd-app 1/1 Running 0 39m
kube-system coredns-6d8c4cb4d-2296m 1/1 Running 1 (7h2m ago) 10h
kube-system coredns-6d8c4cb4d-lphb2 1/1 Running 1 (7h1m ago) 10h
kube-system etcd-mcw7 1/1 Running 3 10h
kube-system kube-apiserver-mcw7 1/1 Running 2 10h
kube-system kube-controller-manager-mcw7 1/1 Running 4 (7h2m ago) 10h
kube-system kube-flannel-ds-5pxmj 0/1 CrashLoopBackOff 74 (93s ago) 6h1m
kube-system kube-flannel-ds-8gzfq 1/1 Running 0 7h7m
kube-system kube-flannel-ds-s4qmj 0/1 CrashLoopBackOff 67 (2m17s ago) 5h23m
kube-system kube-proxy-4lmsx 1/1 Running 0 6h1m
kube-system kube-proxy-c5zmm 1/1 Running 0 10h
kube-system kube-proxy-npmtv 1/1 Running 0 5h23m
kube-system kube-scheduler-mcw7 1/1 Running 3 (7h2m ago) 10h [machangwei@mcw7 ~]$ kubectl get pod --all-namespaces -o wide #加上参数查看
NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
default httpd-app 1/1 Running 0 73m 10.244.0.2 mcw9 <none> <none>
default mcw1httpd-app 1/1 Running 0 43m 10.244.0.2 mcw8 <none> <none>
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