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Kubernetes(k8s)中Pod资源的健康检查

1、Pod的健康检查,也叫做探针,探针的种类有两种。

答:1)、livenessProbe,健康状态检查,周期性检查服务是否存活,检查结果失败,将重启容器。
2)、readinessProbe,可用性检查,周期性检查服务是否可用,不可用将从service的endpoints中移除。

 

2、探针的检测方法。

答:1)、exec,执行一段命令。
2)、httpGet,检测某个http请求的返回状态码。
3)、tcpSocket,测试某个端口是否能够连接。

 

3、创建exec的探针检测方法。

1 [root@k8s-master health]# vim pod_nginx_exec.yaml
 1 apiVersion: v1
 2 kind: Pod
 3 metadata:
 4   name: exec
 5 spec:
 6   containers:
 7     - name: nginx
 8       image: 192.168.110.133:5000/nginx:1.13
 9       ports:
10         - containerPort: 80
11       args:
12         - /bin/sh
13         - -c
14         - touch /tmp/healthy; sleep 30; rm -rf /tmp/healthy; sleep 600
15       livenessProbe:
16         exec:
17           command:
18             - cat
19             - /tmp/healthy
20         initialDelaySeconds: 5
21         periodSeconds: 5
22       

开始创建这个Pod,操作如下所示:

 1 [root@k8s-master health]# kubectl create -f pod_nginx_exec.yaml 
 2 pod "exec" created
 3 [root@k8s-master health]# kubectl get all -o wide
 4 NAME       DESIRED   CURRENT   READY     AGE       CONTAINER(S)   IMAGE(S)                             SELECTOR
 5 rc/mysql   1         1         1         1h        mysql          192.168.110.133:5000/mysql:5.7.30    app=mysql
 6 rc/myweb   1         1         1         1h        myweb          192.168.110.133:5000/tomcat:latest   app=myweb
 7 
 8 NAME             CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE       SELECTOR
 9 svc/kubernetes   10.254.0.1       <none>        443/TCP          13d       <none>
10 svc/mysql        10.254.207.238   <none>        3306/TCP         1h        app=mysql
11 svc/myweb        10.254.29.22     <nodes>       8080:30008/TCP   1h        app=myweb
12 
13 NAME             READY     STATUS    RESTARTS   AGE       IP            NODE
14 po/busybox2      1/1       Running   1          35m       172.16.16.3   k8s-master
15 po/exec          1/1       Running   0          15s       172.16.59.4   k8s-node2
16 po/mysql-lmx4s   1/1       Running   0          1h        172.16.59.2   k8s-node2
17 po/myweb-hsdwn   1/1       Running   0          1h        172.16.32.3   k8s-node3
18 [root@k8s-master health]# 

可用通过详细查看Pod的启动状况。

 1 [root@k8s-master health]# kubectl describe pod exec
 2 Name:        exec
 3 Namespace:    default
 4 Node:        k8s-node2/192.168.110.134
 5 Start Time:    Thu, 18 Jun 2020 16:36:16 +0800
 6 Labels:        <none>
 7 Status:        Running
 8 IP:        172.16.59.4
 9 Controllers:    <none>
10 Containers:
11   nginx:
12     Container ID:    docker://54e08c980bd1ad05c756de4de50b0f61c448a01b7ffcda2b97dc8b5c3a6e2749
13     Image:        192.168.110.133:5000/nginx:1.13
14     Image ID:        docker-pullable://192.168.110.133:5000/nginx@sha256:e4f0474a75c510f40b37b6b7dc2516241ffa8bde5a442bde3d372c9519c84d90
15     Port:        80/TCP
16     Args:
17       /bin/sh
18       -c
19       touch /tmp/healthy; sleep 30; rm -rf /tmp/healthy; sleep 600
20     State:            Running
21       Started:            Thu, 18 Jun 2020 16:37:32 +0800
22     Last State:            Terminated
23       Reason:            Error
24       Exit Code:        137
25       Started:            Thu, 18 Jun 2020 16:36:18 +0800
26       Finished:            Thu, 18 Jun 2020 16:37:32 +0800
27     Ready:            True
28     Restart Count:        1
29     Liveness:            exec [cat /tmp/healthy] delay=5s timeout=1s period=5s #success=1 #failure=3
30     Volume Mounts:        <none>
31     Environment Variables:    <none>
32 Conditions:
33   Type        Status
34   Initialized     True 
35   Ready     True 
36   PodScheduled     True 
37 No volumes.
38 QoS Class:    BestEffort
39 Tolerations:    <none>
40 Events:
41   FirstSeen    LastSeen    Count    From            SubObjectPath        Type        Reason        Message
42   ---------    --------    -----    ----            -------------        --------    ------        -------
43   1m        1m        1    {default-scheduler }                Normal        Scheduled    Successfully assigned exec to k8s-node2
44   1m        1m        1    {kubelet k8s-node2}    spec.containers{nginx}    Normal        Created        Created container with docker id ff079949b2cb; Security:[seccomp=unconfined]
45   1m        1m        1    {kubelet k8s-node2}    spec.containers{nginx}    Normal        Started        Started container with docker id ff079949b2cb
46   1m        1m        3    {kubelet k8s-node2}    spec.containers{nginx}    Warning        Unhealthy    Liveness probe failed: cat: /tmp/healthy: No such file or directory
47 
48   1m    33s    2    {kubelet k8s-node2}    spec.containers{nginx}    Normal    Pulled    Container image "192.168.110.133:5000/nginx:1.13" already present on machine
49   33s    33s    1    {kubelet k8s-node2}    spec.containers{nginx}    Normal    Killing    Killing container with docker id ff079949b2cb: pod "exec_default(c69fbd14-b13e-11ea-80b4-000c2919d52d)" container "nginx" is unhealthy, it will be killed and re-created.
50   33s    33s    1    {kubelet k8s-node2}    spec.containers{nginx}    Normal    Created    Created container with docker id 54e08c980bd1; Security:[seccomp=unconfined]
51   33s    33s    1    {kubelet k8s-node2}    spec.containers{nginx}    Normal    Started    Started container with docker id 54e08c980bd1
52 [root@k8s-master health]# kubectl get all -o wide
53 NAME       DESIRED   CURRENT   READY     AGE       CONTAINER(S)   IMAGE(S)                             SELECTOR
54 rc/mysql   1         1         1         1h        mysql          192.168.110.133:5000/mysql:5.7.30    app=mysql
55 rc/myweb   1         1         1         1h        myweb          192.168.110.133:5000/tomcat:latest   app=myweb
56 
57 NAME             CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE       SELECTOR
58 svc/kubernetes   10.254.0.1       <none>        443/TCP          13d       <none>
59 svc/mysql        10.254.207.238   <none>        3306/TCP         1h        app=mysql
60 svc/myweb        10.254.29.22     <nodes>       8080:30008/TCP   1h        app=myweb
61 
62 NAME             READY     STATUS    RESTARTS   AGE       IP            NODE
63 po/busybox2      1/1       Running   1          37m       172.16.16.3   k8s-master
64 po/exec          1/1       Running   1          2m        172.16.59.4   k8s-node2
65 po/mysql-lmx4s   1/1       Running   0          1h        172.16.59.2   k8s-node2
66 po/myweb-hsdwn   1/1       Running   0          1h        172.16.32.3   k8s-node3
67 [root@k8s-master health]# 

pod重启的次数,可以看到这个Pod的重启了多少次了。

 

4、创建httpGet的探针检测方法,liveness探针的httpGet使用。

1 [root@k8s-master health]# vim nginx_pod_httpGet.yaml

具体内容,如下所示:

 1 apiVersion: v1
 2 kind: Pod
 3 metadata:
 4   name: httpget
 5 spec:
 6   containers:
 7     - name: nginx
 8       image: 192.168.110.133:5000/nginx:1.13
 9       ports:
10         - containerPort: 80
11       livenessProbe:
12         httpGet:
13           path: /index.html
14           port: 80
15         initialDelaySeconds: 3
16         periodSeconds: 3
17       

创建httpGet的探针检测方法,liveness探针的httpGet使用。

 1 [root@k8s-master health]# kubectl get all -o wide
 2 NAME       DESIRED   CURRENT   READY     AGE       CONTAINER(S)   IMAGE(S)                             SELECTOR
 3 rc/mysql   1         1         1         1h        mysql          192.168.110.133:5000/mysql:5.7.30    app=mysql
 4 rc/myweb   1         1         1         1h        myweb          192.168.110.133:5000/tomcat:latest   app=myweb
 5 
 6 NAME             CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE       SELECTOR
 7 svc/kubernetes   10.254.0.1       <none>        443/TCP          13d       <none>
 8 svc/mysql        10.254.207.238   <none>        3306/TCP         1h        app=mysql
 9 svc/myweb        10.254.29.22     <nodes>       8080:30008/TCP   1h        app=myweb
10 
11 NAME             READY     STATUS             RESTARTS   AGE       IP            NODE
12 po/busybox2      1/1       Running            1          46m       172.16.16.3   k8s-master
13 po/exec          0/1       CrashLoopBackOff   6          11m       172.16.59.4   k8s-node2
14 po/httpget       1/1       Running            0          22s       172.16.16.4   k8s-master
15 po/mysql-lmx4s   1/1       Running            0          1h        172.16.59.2   k8s-node2
16 po/myweb-hsdwn   1/1       Running            0          1h        172.16.32.3   k8s-node3
17 [root@k8s-master health]# kubectl describe pod httpget
18 Name:        httpget
19 Namespace:    default
20 Node:        k8s-master/192.168.110.133
21 Start Time:    Thu, 18 Jun 2020 16:47:03 +0800
22 Labels:        <none>
23 Status:        Running
24 IP:        172.16.16.4
25 Controllers:    <none>
26 Containers:
27   nginx:
28     Container ID:        docker://f9e0ea6a16a26d3fca57b1e1b521f642f89eb05e6951a05830933e68dce1253a
29     Image:            192.168.110.133:5000/nginx:1.13
30     Image ID:            docker-pullable://docker.io/nginx@sha256:b1d09e9718890e6ebbbd2bc319ef1611559e30ce1b6f56b2e3b479d9da51dc35
31     Port:            80/TCP
32     State:            Running
33       Started:            Thu, 18 Jun 2020 16:47:04 +0800
34     Ready:            True
35     Restart Count:        0
36     Liveness:            http-get http://:80/index.html delay=3s timeout=1s period=3s #success=1 #failure=3
37     Volume Mounts:        <none>
38     Environment Variables:    <none>
39 Conditions:
40   Type        Status
41   Initialized     True 
42   Ready     True 
43   PodScheduled     True 
44 No volumes.
45 QoS Class:    BestEffort
46 Tolerations:    <none>
47 Events:
48   FirstSeen    LastSeen    Count    From            SubObjectPath        Type        Reason        Message
49   ---------    --------    -----    ----            -------------        --------    ------        -------
50   1m        1m        1    {default-scheduler }                Normal        Scheduled    Successfully assigned httpget to k8s-master
51   1m        1m        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Pulled        Container image "192.168.110.133:5000/nginx:1.13" already present on machine
52   1m        1m        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Created        Created container with docker id f9e0ea6a16a2; Security:[seccomp=unconfined]
53   1m        1m        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Started        Started container with docker id f9e0ea6a16a2
54 [root@k8s-master health]# 

默认,这个首页index.html是可以访问到的,这里也可以让它访问不到的。

  1 [root@k8s-master health]# kubectl exec -it httpget bash
  2 root@httpget:/# cd /usr/share/html
  3 bash: cd: /usr/share/html: No such file or directory
  4 root@httpget:/# cd /usr/share/nginx/html
  5 root@httpget:/usr/share/nginx/html# ls
  6 50x.html  index.html
  7 root@httpget:/usr/share/nginx/html# mv index.html /tmp/
  8 root@httpget:/usr/share/nginx/html# exit
  9 exit
 10 [root@k8s-master health]# kubectl get pod httpget
 11 NAME      READY     STATUS    RESTARTS   AGE
 12 httpget   1/1       Running   1          3m
 13 [root@k8s-master health]# kubectl describe pod httpget
 14 Name:        httpget
 15 Namespace:    default
 16 Node:        k8s-master/192.168.110.133
 17 Start Time:    Thu, 18 Jun 2020 16:47:03 +0800
 18 Labels:        <none>
 19 Status:        Running
 20 IP:        172.16.16.4
 21 Controllers:    <none>
 22 Containers:
 23   nginx:
 24     Container ID:        docker://7bb1ef7b33b24e16aad18053b3238077baac8e4b507ba85a6943dc9e9ae3ea29
 25     Image:            192.168.110.133:5000/nginx:1.13
 26     Image ID:            docker-pullable://docker.io/nginx@sha256:b1d09e9718890e6ebbbd2bc319ef1611559e30ce1b6f56b2e3b479d9da51dc35
 27     Port:            80/TCP
 28     State:            Running
 29       Started:            Thu, 18 Jun 2020 16:50:07 +0800
 30     Last State:            Terminated
 31       Reason:            Completed
 32       Exit Code:        0
 33       Started:            Thu, 18 Jun 2020 16:47:04 +0800
 34       Finished:            Thu, 18 Jun 2020 16:50:06 +0800
 35     Ready:            True
 36     Restart Count:        1
 37     Liveness:            http-get http://:80/index.html delay=3s timeout=1s period=3s #success=1 #failure=3
 38     Volume Mounts:        <none>
 39     Environment Variables:    <none>
 40 Conditions:
 41   Type        Status
 42   Initialized     True 
 43   Ready     True 
 44   PodScheduled     True 
 45 No volumes.
 46 QoS Class:    BestEffort
 47 Tolerations:    <none>
 48 Events:
 49   FirstSeen    LastSeen    Count    From            SubObjectPath        Type        Reason        Message
 50   ---------    --------    -----    ----            -------------        --------    ------        -------
 51   3m        3m        1    {default-scheduler }                Normal        Scheduled    Successfully assigned httpget to k8s-master
 52   3m        3m        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Created        Created container with docker id f9e0ea6a16a2; Security:[seccomp=unconfined]
 53   3m        3m        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Started        Started container with docker id f9e0ea6a16a2
 54   3m        13s        2    {kubelet k8s-master}    spec.containers{nginx}    Normal        Pulled        Container image "192.168.110.133:5000/nginx:1.13" already present on machine
 55   19s        13s        3    {kubelet k8s-master}    spec.containers{nginx}    Warning        Unhealthy    Liveness probe failed: HTTP probe failed with statuscode: 404
 56   13s        13s        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Killing        Killing container with docker id f9e0ea6a16a2: pod "httpget_default(4857d09b-b140-11ea-80b4-000c2919d52d)" container "nginx" is unhealthy, it will be killed and re-created.
 57   13s        13s        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Created        Created container with docker id 7bb1ef7b33b2; Security:[seccomp=unconfined]
 58   12s        12s        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Started        Started container with docker id 7bb1ef7b33b2
 59 [root@k8s-master health]# kubectl describe pod httpget
 60 Name:        httpget
 61 Namespace:    default
 62 Node:        k8s-master/192.168.110.133
 63 Start Time:    Thu, 18 Jun 2020 16:47:03 +0800
 64 Labels:        <none>
 65 Status:        Running
 66 IP:        172.16.16.4
 67 Controllers:    <none>
 68 Containers:
 69   nginx:
 70     Container ID:        docker://7bb1ef7b33b24e16aad18053b3238077baac8e4b507ba85a6943dc9e9ae3ea29
 71     Image:            192.168.110.133:5000/nginx:1.13
 72     Image ID:            docker-pullable://docker.io/nginx@sha256:b1d09e9718890e6ebbbd2bc319ef1611559e30ce1b6f56b2e3b479d9da51dc35
 73     Port:            80/TCP
 74     State:            Running
 75       Started:            Thu, 18 Jun 2020 16:50:07 +0800
 76     Last State:            Terminated
 77       Reason:            Completed
 78       Exit Code:        0
 79       Started:            Thu, 18 Jun 2020 16:47:04 +0800
 80       Finished:            Thu, 18 Jun 2020 16:50:06 +0800
 81     Ready:            True
 82     Restart Count:        1
 83     Liveness:            http-get http://:80/index.html delay=3s timeout=1s period=3s #success=1 #failure=3
 84     Volume Mounts:        <none>
 85     Environment Variables:    <none>
 86 Conditions:
 87   Type        Status
 88   Initialized     True 
 89   Ready     True 
 90   PodScheduled     True 
 91 No volumes.
 92 QoS Class:    BestEffort
 93 Tolerations:    <none>
 94 Events:
 95   FirstSeen    LastSeen    Count    From            SubObjectPath        Type        Reason        Message
 96   ---------    --------    -----    ----            -------------        --------    ------        -------
 97   3m        3m        1    {default-scheduler }                Normal        Scheduled    Successfully assigned httpget to k8s-master
 98   3m        3m        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Created        Created container with docker id f9e0ea6a16a2; Security:[seccomp=unconfined]
 99   3m        3m        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Started        Started container with docker id f9e0ea6a16a2
100   3m        18s        2    {kubelet k8s-master}    spec.containers{nginx}    Normal        Pulled        Container image "192.168.110.133:5000/nginx:1.13" already present on machine
101   24s        18s        3    {kubelet k8s-master}    spec.containers{nginx}    Warning        Unhealthy    Liveness probe failed: HTTP probe failed with statuscode: 404
102   18s        18s        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Killing        Killing container with docker id f9e0ea6a16a2: pod "httpget_default(4857d09b-b140-11ea-80b4-000c2919d52d)" container "nginx" is unhealthy, it will be killed and re-created.
103   18s        18s        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Created        Created container with docker id 7bb1ef7b33b2; Security:[seccomp=unconfined]
104   17s        17s        1    {kubelet k8s-master}    spec.containers{nginx}    Normal        Started        Started container with docker id 7bb1ef7b33b2
105 [root@k8s-master health]# 

 

5、liveness探针的tcpSocket使用。

1 [root@k8s-master health]# vim nginx_pod_tcpSocket.yaml

使用tcpSocket监控的是80的端口,配置文件的内容如下所示:

 1 apiVersion: v1
 2 kind: Pod
 3 metadata:
 4   name: tcpsocket
 5 spec:
 6   containers:
 7     - name: nginx
 8       image: 192.168.110.133:5000/nginx:1.13
 9       ports:
10         - containerPort: 80
11       livenessProbe:
12         tcpSocket:
13           port: 80
14         initialDelaySeconds: 3
15         periodSeconds: 3
16       

创建,如下所示:

 1 [root@k8s-master health]# kubectl create -f nginx_pod_tcpSocket.yaml 
 2 pod "tcpsocket" created
 3 [root@k8s-master health]# kubectl get all -o wide
 4 NAME             CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE       SELECTOR
 5 svc/kubernetes   10.254.0.1   <none>        443/TCP   13d       <none>
 6 
 7 NAME           READY     STATUS             RESTARTS   AGE       IP            NODE
 8 po/busybox2    1/1       Running            1          54m       172.16.16.3   k8s-master
 9 po/exec        0/1       CrashLoopBackOff   7          18m       172.16.59.4   k8s-node2
10 po/httpget     1/1       Running            1          8m        172.16.16.4   k8s-master
11 po/tcpsocket   1/1       Running            0          6s        172.16.59.2   k8s-node2

 

6、readiness探针的httpGet使用。

1 [root@k8s-master health]# vim nginx_rc_readiness.yaml

具体内容,如下所示:

需要访问qiangge.html,如果不存在就一直加入不到svc中。

 1 apiVersion: v1
 2 kind: ReplicationController
 3 metadata:
 4   name: readiness
 5 spec:
 6   replicas: 2
 7   selector:
 8     app: readiness
 9   template:
10     metadata:
11       labels:
12         app: readiness
13     spec:
14       containers:
15         - name: readiness
16           image: 192.168.110.133:5000/nginx:1.13
17           ports:
18             - containerPort: 80
19           readinessProbe:
20             httpGet:
21               path: /qiangge.html
22               port: 80
23             initialDelaySeconds: 3
24             periodSeconds: 3

创建完rc之后,需要创建一个svc的,这里使用命令创建,不再使用配置文件进行创建了。

 1 [root@k8s-master health]# kubectl expose rc readiness --port=80
 2 service "readiness" exposed
 3 [root@k8s-master health]# kubectl describe svc readiness
 4 Name:            readiness
 5 Namespace:        default
 6 Labels:            app=readiness
 7 Selector:        app=readiness
 8 Type:            ClusterIP
 9 IP:            10.254.218.107
10 Port:            <unset>    80/TCP
11 Endpoints:        
12 Session Affinity:    None
13 No events.
14 [root@k8s-master health]# kubectl get all -o wide
15 NAME           DESIRED   CURRENT   READY     AGE       CONTAINER(S)   IMAGE(S)                          SELECTOR
16 rc/readiness   2         2         0         2m        readiness      192.168.110.133:5000/nginx:1.13   app=readiness
17 
18 NAME             CLUSTER-IP       EXTERNAL-IP   PORT(S)   AGE       SELECTOR
19 svc/kubernetes   10.254.0.1       <none>        443/TCP   13d       <none>
20 svc/readiness    10.254.218.107   <none>        80/TCP    28s       app=readiness
21 
22 NAME                 READY     STATUS    RESTARTS   AGE       IP            NODE
23 po/busybox2          1/1       Running   1          1h        172.16.16.3   k8s-master
24 po/exec              1/1       Running   11         28m       172.16.59.4   k8s-node2
25 po/httpget           1/1       Running   1          18m       172.16.16.4   k8s-master
26 po/readiness-66j6c   0/1       Running   0          2m        172.16.59.5   k8s-node2
27 po/readiness-l2v6z   0/1       Running   0          2m        172.16.32.3   k8s-node3
28 po/tcpsocket         1/1       Running   0          10m       172.16.59.2   k8s-node2
29 [root@k8s-master health]# 

可以看到readiness已经启动了两个Pod了,但是后端节点里面是空的。此时可以创建一个指定的html文件,就可以了。

此时发现后端节点也不为空了,Pod也正常启动了,另外一个可以类似出来,就可以将两个Pod正常启动起来了。

 1 [root@k8s-master health]# kubectl exec -it readiness-66j6c bash
 2 root@readiness-66j6c:/# cd /usr/share/nginx/html/
 3 root@readiness-66j6c:/usr/share/nginx/html# echo hello nginx > qiangge.html
 4 root@readiness-66j6c:/usr/share/nginx/html# cat qiangge.html 
 5 hello nginx
 6 root@readiness-66j6c:/usr/share/nginx/html# exit
 7 exit
 8 [root@k8s-master health]# kubectl describe svc readiness
 9 Name:            readiness
10 Namespace:        default
11 Labels:            app=readiness
12 Selector:        app=readiness
13 Type:            ClusterIP
14 IP:            10.254.218.107
15 Port:            <unset>    80/TCP
16 Endpoints:        172.16.59.5:80
17 Session Affinity:    None
18 No events.
19 [root@k8s-master health]# kubectl get all -o wide
20 NAME           DESIRED   CURRENT   READY     AGE       CONTAINER(S)   IMAGE(S)                          SELECTOR
21 rc/readiness   2         2         1         6m        readiness      192.168.110.133:5000/nginx:1.13   app=readiness
22 
23 NAME             CLUSTER-IP       EXTERNAL-IP   PORT(S)   AGE       SELECTOR
24 svc/kubernetes   10.254.0.1       <none>        443/TCP   13d       <none>
25 svc/readiness    10.254.218.107   <none>        80/TCP    4m        app=readiness
26 
27 NAME                 READY     STATUS             RESTARTS   AGE       IP            NODE
28 po/busybox2          1/1       Running            1          1h        172.16.16.3   k8s-master
29 po/exec              0/1       CrashLoopBackOff   11         32m       172.16.59.4   k8s-node2
30 po/httpget           1/1       Running            1          21m       172.16.16.4   k8s-master
31 po/readiness-66j6c   1/1       Running            0          6m        172.16.59.5   k8s-node2
32 po/readiness-l2v6z   0/1       Running            0          6m        172.16.32.3   k8s-node3
33 po/tcpsocket         1/1       Running            0          13m       172.16.59.2   k8s-node2
34 [root@k8s-master health]# 

 

posted on 2020-06-21 13:22  别先生  阅读(182)  评论(0编辑  收藏