CentOS7.8 安装kubernates 、dashboard、ingress记录
一、基础环境
1、 yum update
更新系统内核 参考 centos7 更新内核
1.1 修改主机名
#master节点:
hostnamectl set-hostname k8s-master
#node1节点：
hostnamectl set-hostname k8s-node1
#node2节点:
hostnamectl set-hostname k8s-node21.2 在master添加hosts【ip和name依据自己的虚机设置】
cat >> /etc/hosts << EOF
192.168.92.56 k8s-master
192.168.92.57 k8s-node1
192.168.92.58 k8s-node2
EOF
1.3 关闭防火墙、selinux、swap
#关闭防火墙
systemctl stop firewalld && systemctl disable firewalld
#关闭selinux
sed -i 's/^SELINUX=enforcing$/SELINUX=disabled/' /etc/selinux/config && setenforce 0
$ swapoff -a # 临时
$ sed -ri 's/.*swap.*/#&/' /etc/fstab # 永久
即在 vim /etc/fstab 中注释掉：/dev/mapper/centos-swap swap swap defaults 0 0
1.4 配置时间同步
使用chrony同步时间，配置master节点与网络NTP服务器同步时间，所有node节点与master节点同步时间。
配置master节点：
#安装chrony：
yum install -y chrony
#注释默认ntp服务器
sed -i 's/^server/#&/' /etc/chrony.conf
#指定上游公共 ntp 服务器，并允许其他节点同步时间
cat >> /etc/chrony.conf << EOF
server 0.asia.pool.ntp.org iburst
server 1.asia.pool.ntp.org iburst
server 2.asia.pool.ntp.org iburst
server 3.asia.pool.ntp.org iburst
allow all
EOF
#重启chronyd服务并设为开机启动：
systemctl enable chronyd && systemctl restart chronyd
#开启网络时间同步功能
timedatectl set-ntp true
配置所有node节点：
(注意修改master IP地址)
#安装chrony：
yum install -y chrony
#注释默认服务器
sed -i 's/^server/#&/' /etc/chrony.conf
#指定内网 master节点为上游NTP服务器
echo server 192.168.92.56 iburst >> /etc/chrony.conf
#重启服务并设为开机启动：
systemctl enable chronyd && systemctl restart chronyd
所有节点执行chronyc sources命令，查看存在以^*开头的行，说明已经与服务器时间同步
1.5 修改iptables相关参数
RHEL / CentOS 7上的一些用户报告了由于iptables被绕过而导致流量路由不正确的问题。创建/etc/sysctl.d/k8s.conf文件，添加如下内容：
cat < /etc/sysctl.d/k8s.conf
vm.swappiness = 0
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
EOF
# 使配置生效
modprobe br_netfilter
sysctl -p /etc/sysctl.d/k8s.conf
1.6 加载ipvs相关模块
由于ipvs已经加入到了内核的主干，所以为kube-proxy开启ipvs的前提需要加载以下的内核模块：
在所有的Kubernetes节点执行以下脚本:
cat > /etc/sysconfig/modules/ipvs.modules <上面脚本创建了/etc/sysconfig/modules/ipvs.modules文件，保证在节点重启后能自动加载所需模块。 使用lsmod | grep -e ip_vs -e nf_conntrack_ipv4命令查看是否已经正确加载所需的内核模块。
接下来还需要确保各个节点上已经安装了ipset软件包。 为了便于查看ipvs的代理规则，最好安装一下管理工具ipvsadm。
yum install ipset ipvsadm -y二、所有节点安装Docker / kubeadm-引导集群的工具 / kubelet-容器管理
2.1 docker 安装
yum install -y yum-utils device-mapper-persistent-data lvm2 wget
wget -O /etc/yum.repos.d/docker-ce.repo https://download.docker.com/linux/centos/docker-ce.repo
sed -i 's+download.docker.com+mirrors.tuna.tsinghua.edu.cn/docker-ce+' /etc/yum.repos.d/docker-ce.repo
yum install docker-ce -y
配置docker 增加docker国内镜像加速下载
vim /etc/docker/daemon.json
{
"registry-mirrors": [
"https://q2gr04ke.mirror.aliyuncs.com",
"https://docker.mirrors.ustc.edu.cn",
"https://registry.docker-cn.com"
],
"exec-opts": ["native.cgroupdriver=systemd"]
}
2.2 安装cri-dockerd
sudo rpm -ivh https://github.com/Mirantis/cri-dockerd/releases/download/v0.3.4/cri-dockerd-0.3.4-3.el7.x86_64.rpm
如命令下载不下来，可以先将 github的文件下载下来上传到服务器中，然后执行
sudo rpm -ivh cri-dockerd-0.3.4-3.el7.x86_64.rpm
启动文件修改
vim /usr/lib/systemd/system/cri-docker.service
修改
ExecStart=/usr/bin/cri-dockerd --network-plugin=cni --pod-infra-container-image=registry.aliyuncs.com/google_containers/pause:3.7 --container-runtime-endpoint fd:// 增加 “--network-plugin=cni --pod-infra-container-image=registry.aliyuncs.com/google_containers/pause:3.7”
2.3 启动docker
sudo systemctl start docker
sudo systemctl enable docker
sudo systemctl start cri-docker
sudo systemctl enable cri-docker2.4 安装kubelet kubeadm kubectl
配置kubernates 安装源（使用阿里镜像）
cat > /etc/yum.repos.d/kubernetes.repo <安装 kubelet、kubeadm、kubectl
yum install kubelet-1.24.0 kubeadm-1.24.0 kubectl-1.24.0 -y
systemctl enable kubelet更新模块
cat <对模块使用modprobe
sudo modprobe overlay
sudo modprobe br_netfilter
sudo modprobe ip_tables
sudo modprobe iptable_filter
为 k8s.conf 设置 sysctl.d
cat <应用 sysctl 参数，无需重启
sysctl --system2.5 拉取镜像
kubeadm config images pull --image-repository registry.aliyuncs.com/google_containers --kubernetes-version v1.24.0 --cri-socket unix:///var/run/cri-dockerd.sock三、初始化集群
3.1 初始化k8s主节点
kubeadm init --control-plane-endpoint 192.168.92.56:6443 --kubernetes-version=v1.24.0 --image-repository=registry.aliyuncs.com/google_containers --pod-network-cidr=172.90.0.0/16 --service-cidr=10.96.0.0/12 --cri-socket unix:///var/run/cri-dockerd.sock --upload-certs
看到以下提示，表示初始化成功：
然后按提示执行
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
export KUBECONFIG=/etc/kubernetes/admin.conf
3.2 节点加入
节点上执行提示中最后的命令进行加入， 提示 需要指定 cri （ --cri-socket unix:///var/run/cri-dockerd.sock ）
如
kubeadm join masterNode --token xxx --discovery-token-ca-cert-hash xxx --cri-socket unix:///var/run/cri-dockerd.sock3.3 安装网络插件flannel
下载配置文件
wget https://github.com/flannel-io/flannel/releases/latest/download/kube-flannel.yml
修改
net-conf.json: |
{
"Network": "10.244.0.0/16", //修改为 172.90.0.0/16 与podSubnet一致
"Backend": {
"Type": "vxlan"
}
}
应用配置
kubectl apply -f kube-flannel.yml3.4 安装ingress
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.8.0/deploy/static/provider/cloud/deploy.yamlyaml文件全文如下（如下载不下来，复制内容到本地 deploy.yaml）
apiVersion: v1
kind: Namespace
metadata:
labels:
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
name: ingress-nginx
---
apiVersion: v1
automountServiceAccountToken: true
kind: ServiceAccount
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx
namespace: ingress-nginx
---
apiVersion: v1
kind: ServiceAccount
metadata:
labels:
app.kubernetes.io/component: admission-webhook
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-admission
namespace: ingress-nginx
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx
namespace: ingress-nginx
rules:
- apiGroups:
- ""
resources:
- namespaces
verbs:
- get
- apiGroups:
- ""
resources:
- configmaps
- pods
- secrets
- endpoints
verbs:
- get
- list
- watch
- apiGroups:
- ""
resources:
- services
verbs:
- get
- list
- watch
- apiGroups:
- networking.k8s.io
resources:
- ingresses
verbs:
- get
- list
- watch
- apiGroups:
- networking.k8s.io
resources:
- ingresses/status
verbs:
- update
- apiGroups:
- networking.k8s.io
resources:
- ingressclasses
verbs:
- get
- list
- watch
- apiGroups:
- coordination.k8s.io
resourceNames:
- ingress-nginx-leader
resources:
- leases
verbs:
- get
- update
- apiGroups:
- coordination.k8s.io
resources:
- leases
verbs:
- create
- apiGroups:
- ""
resources:
- events
verbs:
- create
- patch
- apiGroups:
- discovery.k8s.io
resources:
- endpointslices
verbs:
- list
- watch
- get
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
labels:
app.kubernetes.io/component: admission-webhook
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-admission
namespace: ingress-nginx
rules:
- apiGroups:
- ""
resources:
- secrets
verbs:
- get
- create
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
labels:
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx
rules:
- apiGroups:
- ""
resources:
- configmaps
- endpoints
- nodes
- pods
- secrets
- namespaces
verbs:
- list
- watch
- apiGroups:
- coordination.k8s.io
resources:
- leases
verbs:
- list
- watch
- apiGroups:
- ""
resources:
- nodes
verbs:
- get
- apiGroups:
- ""
resources:
- services
verbs:
- get
- list
- watch
- apiGroups:
- networking.k8s.io
resources:
- ingresses
verbs:
- get
- list
- watch
- apiGroups:
- ""
resources:
- events
verbs:
- create
- patch
- apiGroups:
- networking.k8s.io
resources:
- ingresses/status
verbs:
- update
- apiGroups:
- networking.k8s.io
resources:
- ingressclasses
verbs:
- get
- list
- watch
- apiGroups:
- discovery.k8s.io
resources:
- endpointslices
verbs:
- list
- watch
- get
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
labels:
app.kubernetes.io/component: admission-webhook
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-admission
rules:
- apiGroups:
- admissionregistration.k8s.io
resources:
- validatingwebhookconfigurations
verbs:
- get
- update
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx
namespace: ingress-nginx
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: ingress-nginx
subjects:
- kind: ServiceAccount
name: ingress-nginx
namespace: ingress-nginx
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
labels:
app.kubernetes.io/component: admission-webhook
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-admission
namespace: ingress-nginx
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: ingress-nginx-admission
subjects:
- kind: ServiceAccount
name: ingress-nginx-admission
namespace: ingress-nginx
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
labels:
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: ingress-nginx
subjects:
- kind: ServiceAccount
name: ingress-nginx
namespace: ingress-nginx
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
labels:
app.kubernetes.io/component: admission-webhook
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-admission
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: ingress-nginx-admission
subjects:
- kind: ServiceAccount
name: ingress-nginx-admission
namespace: ingress-nginx
---
apiVersion: v1
data:
allow-snippet-annotations: "true"
kind: ConfigMap
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-controller
namespace: ingress-nginx
---
apiVersion: v1
kind: Service
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-controller
namespace: ingress-nginx
spec:
externalTrafficPolicy: Local
ipFamilies:
- IPv4
ipFamilyPolicy: SingleStack
ports:
- appProtocol: http
name: http
port: 80
protocol: TCP
targetPort: http
- appProtocol: https
name: https
port: 443
protocol: TCP
targetPort: https
selector:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
type: LoadBalancer
---
apiVersion: v1
kind: Service
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-controller-admission
namespace: ingress-nginx
spec:
ports:
- appProtocol: https
name: https-webhook
port: 443
targetPort: webhook
selector:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
type: ClusterIP
---
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-controller
namespace: ingress-nginx
spec:
minReadySeconds: 0
revisionHistoryLimit: 10
selector:
matchLabels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
template:
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
spec:
containers:
- args:
- /nginx-ingress-controller
- --publish-service=$(POD_NAMESPACE)/ingress-nginx-controller
- --election-id=ingress-nginx-leader
- --controller-class=k8s.io/ingress-nginx
- --ingress-class=nginx
- --configmap=$(POD_NAMESPACE)/ingress-nginx-controller
- --validating-webhook=:8443
- --validating-webhook-certificate=/usr/local/certificates/cert
- --validating-webhook-key=/usr/local/certificates/key
env:
- name: POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
- name: LD_PRELOAD
value: /usr/local/lib/libmimalloc.so
image: registry.cn-hangzhou.aliyuncs.com/leonlf/k8s:v1.8.1
imagePullPolicy: IfNotPresent
lifecycle:
preStop:
exec:
command:
- /wait-shutdown
livenessProbe:
failureThreshold: 5
httpGet:
path: /healthz
port: 10254
scheme: HTTP
initialDelaySeconds: 10
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
name: controller
ports:
- containerPort: 80
name: http
protocol: TCP
- containerPort: 443
name: https
protocol: TCP
- containerPort: 8443
name: webhook
protocol: TCP
readinessProbe:
failureThreshold: 3
httpGet:
path: /healthz
port: 10254
scheme: HTTP
initialDelaySeconds: 10
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
resources:
requests:
cpu: 100m
memory: 90Mi
securityContext:
allowPrivilegeEscalation: true
capabilities:
add:
- NET_BIND_SERVICE
drop:
- ALL
runAsUser: 101
volumeMounts:
- mountPath: /usr/local/certificates/
name: webhook-cert
readOnly: true
dnsPolicy: ClusterFirst
nodeSelector:
kubernetes.io/os: linux
serviceAccountName: ingress-nginx
terminationGracePeriodSeconds: 300
volumes:
- name: webhook-cert
secret:
secretName: ingress-nginx-admission
---
apiVersion: batch/v1
kind: Job
metadata:
labels:
app.kubernetes.io/component: admission-webhook
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-admission-create
namespace: ingress-nginx
spec:
template:
metadata:
labels:
app.kubernetes.io/component: admission-webhook
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-admission-create
spec:
containers:
- args:
- create
- --host=ingress-nginx-controller-admission,ingress-nginx-controller-admission.$(POD_NAMESPACE).svc
- --namespace=$(POD_NAMESPACE)
- --secret-name=ingress-nginx-admission
env:
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
image: registry.cn-hangzhou.aliyuncs.com/google_containers/kube-webhook-certgen:v20230407@sha256:543c40fd093964bc9ab509d3e791f9989963021f1e9e4c9c7b6700b02bfb227b
imagePullPolicy: IfNotPresent
name: create
securityContext:
allowPrivilegeEscalation: false
nodeSelector:
kubernetes.io/os: linux
restartPolicy: OnFailure
securityContext:
fsGroup: 2000
runAsNonRoot: true
runAsUser: 2000
serviceAccountName: ingress-nginx-admission
---
apiVersion: batch/v1
kind: Job
metadata:
labels:
app.kubernetes.io/component: admission-webhook
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-admission-patch
namespace: ingress-nginx
spec:
template:
metadata:
labels:
app.kubernetes.io/component: admission-webhook
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-admission-patch
spec:
containers:
- args:
- patch
- --webhook-name=ingress-nginx-admission
- --namespace=$(POD_NAMESPACE)
- --patch-mutating=false
- --secret-name=ingress-nginx-admission
- --patch-failure-policy=Fail
env:
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
image: registry.cn-hangzhou.aliyuncs.com/google_containers/kube-webhook-certgen:v20230407@sha256:543c40fd093964bc9ab509d3e791f9989963021f1e9e4c9c7b6700b02bfb227b
imagePullPolicy: IfNotPresent
name: patch
securityContext:
allowPrivilegeEscalation: false
nodeSelector:
kubernetes.io/os: linux
restartPolicy: OnFailure
securityContext:
fsGroup: 2000
runAsNonRoot: true
runAsUser: 2000
serviceAccountName: ingress-nginx-admission
---
apiVersion: networking.k8s.io/v1
kind: IngressClass
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: nginx
spec:
controller: k8s.io/ingress-nginx
---
apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingWebhookConfiguration
metadata:
labels:
app.kubernetes.io/component: admission-webhook
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.8.1
name: ingress-nginx-admission
webhooks:
- admissionReviewVersions:
- v1
clientConfig:
service:
name: ingress-nginx-controller-admission
namespace: ingress-nginx
path: /networking/v1/ingresses
failurePolicy: Fail
matchPolicy: Equivalent
name: validate.nginx.ingress.kubernetes.io
rules:
- apiGroups:
- networking.k8s.io
apiVersions:
- v1
operations:
- CREATE
- UPDATE
resources:
- ingresses
sideEffects: None
使用 国内镜像源 registry.cn-hangzhou.aliyuncs.com/google_containers 替换 k8s.gcr.io/ingress-nginx
3.5 安装dashboard
因为官方声称的1.24.0完全支持版本最高版本是 v2.6.1 ，故我们使用 此版本的dashboard；
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.6.1/aio/deploy/recommended.yaml创建一个管理员用户，yaml配置如下
apiVersion: v1
kind: ServiceAccount
metadata:
name: k8sadmin
namespace: kubernetes-dashboard
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: k8sadmin
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: k8sadmin
namespace: kubernetes-dashboardkubectl apply -f dashboard-user.yaml 获取用户的token令牌
kubectl -n kubernetes-dashboard create token k8sadmin3.6 使用ingress 发布dashboard
3.6.1 创建自签证书，并创建tls类型Secrets
openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout kube-dashboard.key -out kube-dashboard.crt -subj "/CN=dashboard.kube.com/O=k8s.dashboard.local"
创建tls类型的Secret为ingress提供配置
kubectl create secret tls kubernetes-dashboard-certs --key kube-dashboard.key --cert kube-dashboard.crt -n kubernetes-dashboard查看secrets 可以看到tls类型的
kubectl get secret -n kubernetes-dashboard
修改 下dashboard的deploy
kubectl edit deployments kubernetes-dashboard -n kubernetes-dashboard加入以下参数：
containers:
- args:
- --tls-cert-file=/tls.crt
- --tls-key-file=/tls.key
3.6.2 配置Ingress规则
# cat ingress-dashboard.yaml
apiVersion: networking.k8s.io/v1 # 类型为v1
kind: Ingress
metadata:
name: dashboard-ingress
namespace: kubernetes-dashboard
annotations:
nginx.ingress.kubernetes.io/backend-protocol: "HTTPS" #注意这里：必须指定后端服务为HTTPS服务。
spec:
ingressClassName: "nginx" #控制器的类型为nginx
tls:
- hosts:
- k8s.dashboard.local #主机名
secretName: kubernetes-dashboard-certs #这里引用创建的secrets
rules:
- host: k8s.dashboard.local
http:
paths:
- path: /
pathType: Prefix #起始与根都进行代理。
backend:
service:
name: kubernetes-dashboard #service名称
port: #后端端口
number: 443
--------
加载配置文件
# kubectl apply -f ingress-dashboard.yaml
ingress.networking.k8s.io/dashboard-ingress created检查配置
# kubectl describe ingress -n kubernetes-dashboard
Name: dashboard-ingress
Namespace: kubernetes-dashboard
Address: xxxxx
Default backend: default-http-backend:80 ()
TLS:
dashboard-tls terminates k8s.dashboard.local
Rules:
Host Path Backends
---- ---- --------
k8s.dashboard.local 可以看到后端的服务已被代理到。
/ kubernetes-dashboard:443 (192.168.3.56:8443)
Annotations: nginx.ingress.kubernetes.io/backend-protocol: HTTPS
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Sync 6s (x2 over 54s) nginx-ingress-controller Scheduled for sync 访问配置的域名就可以使用dashboard了；
祝顺利！！！
参考：
centos7安装k8s 1.24.3版本 Error getting node“ err=“node “master01“ not found_docker_肉小盾-华为云开发者联盟
flannel GitHub地址
k8s 1.24 配置cri-dockerd 使用docker_k8s cri-dockerd_wuxingge的博客-CSDN博客
kubeadm安装k8s高可用集群_dns: type: coredns_wuxingge的博客-CSDN博客
kubernetes之Ingress发布Dashboard(二) - 梨花海棠 - 博客园 (cnblogs.com)
Kubernetes-dashboard搭建+整合Ingress+权限管理_dashboard ingress_刷闲书的莉莉的博客-CSDN博客