95、k8s之rancher可视化

ly14356786192024-09-15 16:35

一、ranker 图形化界面

图形化界面进行k8s集群的管理

rancher自带监控----普罗米修斯

[root@master01 opt]# docker load -i rancher.tar   ##所有节点
[root@master01 opt]# docker pull rancher/rancher:v2.5.7      ##主节点

[root@master01 opt]# vim /etc/docker/daemon.json 

{
  "registry-mirrors": [
                "https://hub-mirror.c.163.com",
                "https://docker.m.daocloud.io",
                "https://ghcr.io",
                "https://mirror.baidubce.com",
                "https://docker.nju.edu.cn",
                "https://hub.littlediary.cn/",
                "https://dockerproxy.cn"
   ],
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  }
}
~   
[root@master01 opt]# systemctl daemon-reload 
[root@master01 opt]# systemctl restart docker
[root@master01 opt]# docker pull rancher/rancher:v2.5.7
[root@master01 opt]# docker run -d --restart=unless-stopped -p 80:80 -p 443:443 --privileged --name rancher rancher/rancher:v2.5.7
95247bfb683e8008b249d237603ef520527b2ec00cc261b6d2ebfc6e51321207

[root@master01 opt]# curl --insecure -sfL https://192.168.168.81/v3/import/6pmp9w44gs678l24ln45r84frtcs2pl7txl6hcz57cqlclstlpsx6s_c-2bhzq.yaml | kubectl apply -f -
error: no objects passed to apply
[root@master01 opt]# curl --insecure -sfL https://192.168.168.81/v3/import/6pmp9w44gs678l24ln45r84frtcs2pl7txl6hcz57cqlclstlpsx6s_c-2bhzq.yaml | kubectl apply -f -
clusterrole.rbac.authorization.k8s.io/proxy-clusterrole-kubeapiserver created
clusterrolebinding.rbac.authorization.k8s.io/proxy-role-binding-kubernetes-master created
namespace/cattle-system created
serviceaccount/cattle created
clusterrolebinding.rbac.authorization.k8s.io/cattle-admin-binding created
secret/cattle-credentials-4134134 created
clusterrole.rbac.authorization.k8s.io/cattle-admin created
deployment.apps/cattle-cluster-agent created
[root@master01 opt]# kubectl get ns
NAME              STATUS   AGE
cattle-system     Active   119s
default           Active   18d
ingress-nginx     Active   41h
kube-node-lease   Active   18d
kube-public       Active   18d
kube-system       Active   18d
lucky-cloud       Active   22h
xy102             Active   47h
[root@master01 opt]# kubectl get pod -n cattle-system 
NAME                                  READY   STATUS    RESTARTS   AGE
cattle-cluster-agent-cf684455-bd8bs   1/1     Running   0          2m36s

nfs进行挂载----hostPath

1、声明挂载卷

2、健康检查

3、调度策略

4、扩缩容以及升级策略

5、

调度

Last login: Sat Sep 14 08:55:59 2024 from 192.168.168.168
[root@master01 ~]# kubectl get pod
NAME                        READY   STATUS    RESTARTS   AGE
hpa-test2-0                 1/1     Running   16         2d
nfs1-76f66b958-68wpl        1/1     Running   12         8d
test1-11-785f6847f9-mtdnw   1/1     Running   0          3m49s
[root@master01 ~]# kubectl get svc
NAME         TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
kubernetes   ClusterIP   10.96.0.1    <none>        443/TCP   18d

[root@master01 ~]# kubectl get svc
NAME         TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
kubernetes   ClusterIP   10.96.0.1      <none>        443/TCP        18d
nginx1-11    NodePort    10.96.48.229   <none>        80:31000/TCP   41s

访问(http://192.168.168.81:31000/)

[root@k8s5 k8s]# rm -rf *
[root@k8s5 k8s]# ls
[root@k8s5 k8s]# echo 123 > index.html
[root@k8s5 k8s]# 

[root@master01 k8s-yaml]# kubectl get pod -n cattle-prometheus 
NAME                                                       READY   STATUS                  RESTARTS   AGE
exporter-kube-state-cluster-monitoring-79c667fdc9-ds9jr    0/1     ErrImagePull            0          5m13s
exporter-node-cluster-monitoring-2xrgh                     0/1     ImagePullBackOff        0          5m13s
exporter-node-cluster-monitoring-8knvz                     1/1     Running                 0          5m13s
exporter-node-cluster-monitoring-92rkf                     0/1     ImagePullBackOff        0          5m13s
grafana-cluster-monitoring-575d64fcf-2c4xg                 0/2     Init:ImagePullBackOff   0          5m13s
operator-init-cluster-monitoring-2pv7x                     0/1     ContainerCreating       0          5m13s
operator-init-monitoring-operator-tw9zm                    0/1     ImagePullBackOff        0          5m15s
prometheus-operator-monitoring-operator-6dd84ddd49-b9scc   0/1     ImagePullBackOff        0          5m15s

[root@master01 k8s-yaml]# kubectl describe pod -n cattle-prometheus exporter-node-cluster-monitoring-92rkf 
##查看镜像拉不下来的原因，注意在哪一个节点，然后去节点上拉取



[root@node01 ~]# vim /etc/docker/daemon.json 

{
  "registry-mirrors": [
                "https://hub-mirror.c.163.com",
                "https://docker.m.daocloud.io",
                "https://ghcr.io",
                "https://mirror.baidubce.com",
                "https://docker.nju.edu.cn"
                "https://hub.littlediary.cn/",
                "https://dockerproxy.cn"
   ],
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  }
}
[root@node01 ~]# systemctl daemon-reload
[root@node01 ~]# systemctl restart docker

[root@node01 ~]# docker pull rancher/prom-node-exporter:v1.0.1
v1.0.1: Pulling from rancher/prom-node-exporter
86fa074c6765: Pull complete 
ed1cd1c6cd7a: Pull complete 
ff1bb132ce7b: Pull complete 
Digest: sha256:ae4d849cc4b14c15dcd7dc47621b577ae14767444ed62add3fe0d9b3b9e032f8
Status: Downloaded newer image for rancher/prom-node-exporter:v1.0.1
docker.io/rancher/prom-node-exporter:v1.0.1

[root@master01 k8s-yaml]# kubectl get pod -n cattle-prometheus 
NAME                                                       READY   STATUS                  RESTARTS   AGE
exporter-kube-state-cluster-monitoring-79c667fdc9-ds9jr    0/1     ImagePullBackOff        0          6m21s
exporter-node-cluster-monitoring-2xrgh                     0/1     ImagePullBackOff        0          6m21s
exporter-node-cluster-monitoring-8knvz                     1/1     Running                 0          6m21s
exporter-node-cluster-monitoring-92rkf                     0/1     ImagePullBackOff        0          6m21s
grafana-cluster-monitoring-575d64fcf-2c4xg                 0/2     Init:ImagePullBackOff   0          6m21s
operator-init-cluster-monitoring-xgsn9                     1/1     Running                 0          46s




[root@master01 opt]# kubectl describe pod -n cattle-prometheus operator-init-monitoring-operator-tw9zm 
Name:         operator-init-monitoring-operator-tw9zm
Namespace:    cattle-prometheus
Priority:     0
Node:         node01/192.168.168.82


[root@node01 ~]# docker pull rancher/istio-kubectl:1.5.10


[root@master01 k8s-yaml]# kubectl describe pod -n cattle-prometheus grafana-cluster-monitoring-575d64fcf-2c4xg 

[root@node01 ~]# docker pull rancher/grafana-grafana:7.1.5


[root@master01 opt]# kubectl describe pod -n cattle-prometheus exporter-node-cluster-monitoring-2xrgh 
Name:         exporter-node-cluster-monitoring-2xrgh
Namespace:    cattle-prometheus
Priority:     0
Node:         node02/192.168.168.83

[root@node02 ~]# docker pull rancher/prom-node-exporter:v1.0.1


[root@node02 ~]# vim /etc/docker/daemon.json

{
  "registry-mirrors": [
                "https://hub-mirror.c.163.com",
                "https://docker.m.daocloud.io",
                "https://ghcr.io",
                "https://mirror.baidubce.com",
                "https://docker.nju.edu.cn",
                "https://hub.littlediary.cn/",
                "https://dockerproxy.cn"
   ],
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  }
}

[root@node02 ~]# systemctl daemon-reload
[root@node02 ~]# systemctl restart docker
[root@node02 ~]# docker pull rancher/prom-node-exporter:v1.0.1



[root@master01 opt]# kubectl get pod -n cattle-prometheus
NAME                                                       READY   STATUS    RESTARTS   AGE
exporter-kube-state-cluster-monitoring-79c667fdc9-ds9jr    1/1     Running   0          49m
exporter-node-cluster-monitoring-2xrgh                     1/1     Running   0          49m
exporter-node-cluster-monitoring-8knvz                     1/1     Running   0          49m
exporter-node-cluster-monitoring-92rkf                     1/1     Running   0          49m
grafana-cluster-monitoring-575d64fcf-2c4xg                 2/2     Running   0          49m
prometheus-cluster-monitoring-0                            5/5     Running   1          33m
prometheus-operator-monitoring-operator-6dd84ddd49-b9scc   1/1     Running   0          49m
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