Kubernetes
kubeadm 之k8s 多node 部署
本文主要是介绍kubeadm 之k8s 多node 部署，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！
主机名修改
hostnamectl set-hostname master-1 && exec bash hostnamectl set-hostname node-1 && exec bash hostnamectl set-hostname node-2 && exec bash
host 文件修改
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.10.29 master-1 192.168.10.30 node-1 192.168.10.31 node-2
配置双机互信
ssh-keygen ssh-copy-id master-1 ssh-copy-id node-1 ssh-copy-id node-2
关闭交换分区
swapoff -a vim /etc/fstab # # /etc/fstab # Created by anaconda on Sun Feb 7 10:14:45 2021 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/centos-root / xfs defaults 0 0 UUID=ec65c557-715f-4f2b-beae-ec564c71b66b /boot xfs defaults 0 0 #/dev/mapper/centos-swap swap swap defaults 0 0
加载内核参数并加以设置
modprobe br_netfilter echo "modprobe br_netfilter" >> /etc/profile cat > /etc/sysctl.d/k8s.conf <<EOF net.bridge.bridge-nf-call-ip6tables = 1 net.bridge.bridge-nf-call-iptables = 1 net.ipv4.ip_forward = 1 EOF sysctl -p /etc/sysctl.d/k8s.conf
关闭防火墙
systemctl disable firewalld.service systemctl stop firewalld.service
配置docker仓库源
# step 1: 安装必要的一些系统工具 yum install -y yum-utils device-mapper-persistent-data lvm2 # Step 2: 添加软件源信息 yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo # Step 3: 更新并安装 Docker-CE yum makecache fast yum -y install docker-ce # Step 4: 开启Docker服务 service docker start
设置时间同步计划任务
yum -y install ntpdate crontab -e crontab -l * */1 * * * /usr/sbin/ntpdate time.windows.com >/dev/null 您在 /var/spool/mail/root 中有新邮件 systemctl restart crond.service
加载ipvs 模块
cd /etc/sysconfig/modules/
cat /etc/sysconfig/modules/ipvs.modules
#!/bin/bash
ipvs_modules="ip_vs ip_vs_lc ip_vs_wlc ip_vs_rr ip_vs_wrr ip_vs_lblc ip_vs_lblcr ip_vs_dh ip_vs_sh ip_vs_nq ip_vs_sed ip_vs_ftp nf_conntrack"
for kernel_module in ${ipvs_modules}; do
/sbin/modinfo -F filename ${kernel_module} > /dev/null 2>&1
if [ 0 -eq 0 ]; then
/sbin/modprobe ${kernel_module}
fi
done
chmod +x ipvs.modules
bash ipvs.modules
lsmod | grep ip_vs
ip_vs_ftp 13079 0
nf_nat 26787 1 ip_vs_ftp
ip_vs_sed 12519 0
ip_vs_nq 12516 0
ip_vs_sh 12688 0
ip_vs_dh 12688 0
ip_vs_lblcr 12922 0
ip_vs_lblc 12819 0
ip_vs_wrr 12697 0
ip_vs_rr 12600 0
ip_vs_wlc 12519 0
ip_vs_lc 12516 0
ip_vs 145497 22 ip_vs_dh,ip_vs_lc,ip_vs_nq,ip_vs_rr,ip_vs_sh,ip_vs_ftp,ip_vs_sed,ip_vs_wlc,ip_vs_wrr,ip_vs_lblcr,ip_vs_lblc
nf_conntrack 133095 2 ip_vs,nf_nat
libcrc32c 12644 4 xfs,ip_vs,nf_nat,nf_conntrack
配置镜像加速器及修改docker启动驱动
cat /etc/docker/daemon.json
{
"registry-mirrors": ["http://f1361db2.m.daocloud.io"],"exec-opts": ["native.cgroupdriver=systemd"]
}
systemctl start docker.service && systemctl enable docker.service
配置k8s 仓库
cat <<EOF > /etc/yum.repos.d/kubernetes.repo [kubernetes] name=Kubernetes baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/ enabled=1 gpgcheck=1 repo_gpgcheck=1 gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg EOF setenforce 0
安装k8s 初始化所需安装包
yum install -y kubelet-1.20.6 kubeadm-1.20.6 kubectl-1.20.6
设置开机自启
systemctl enable kubelet
kubeadm初始化k8s集群master-1操作
kubeadm init --kubernetes-version=1.20.6 --apiserver-advertise-address=192.168.10.29 --image-repository registry.aliyuncs.com/google_containers --pod-network-cidr=10.244.0.0/16 --ignore-preflight-errors=SystemVerification
[kubelet-finalize] Updating "/etc/kubernetes/kubelet.conf" to point to a rotatable kubelet client certificate and key
[addons] Applied essential addon: CoreDNS
[addons] Applied essential addon: kube-proxy
Your Kubernetes control-plane has initialized successfully!
To start using your cluster, you need to run the following as a regular user:
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
Alternatively, if you are the root user, you can run:
export KUBECONFIG=/etc/kubernetes/admin.conf
You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
https://kubernetes.io/docs/concepts/cluster-administration/addons/
Then you can join any number of worker nodes by running the following on each as root:
kubeadm join 192.168.10.29:6443 --token dhwkd2.n73yo7rt3x6bsdm8 \
--discovery-token-ca-cert-hash sha256:2a85fc7081360f0d61dbb9930800951a8aa7bca0163cff236ce5da9b8c35ad50
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
node节点加入集群
kubeadm join 192.168.10.29:6443 --token dhwkd2.n73yo7rt3x6bsdm8 \
--discovery-token-ca-cert-hash sha256:2a85fc7081360f0d61dbb9930800951a8aa7bca0163cff236ce5da9b8c35ad50
查看集群状态
[root@master-1 modules]# kubectl get nodes NAME STATUS ROLES AGE VERSION master-1 NotReady control-plane,master 7m26s v1.20.6 node-1 NotReady <none> 2m v1.20.6 node-2 NotReady <none> 111s v1.20.6
设置node角色
[root@master-1 modules]# kubectl label node node-1 node-role.kubernetes.io/worker=worker node/node-1 labeled [root@master-1 modules]# kubectl label node node-2 node-role.kubernetes.io/worker=worker node/node-2 labeled [root@master-1 modules]# kubectl get nodes NAME STATUS ROLES AGE VERSION master-1 NotReady control-plane,master 10m v1.20.6 node-1 NotReady worker 4m51s v1.20.6 node-2 NotReady worker 4m42s v1.20.6
上面状态都是NotReady状态，说明没有安装网络插件
安装kubernetes网络组件-Calico
kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml [root@master-1 modules]# kubectl get nodes NAME STATUS ROLES AGE VERSION master-1 Ready control-plane,master 13m v1.20.6 node-1 Ready worker 8m24s v1.20.6 node-2 Ready worker 8m15s v1.20.6
测试在k8s创建pod是否可以正常访问网络
[root@master-1 modules]# kubectl run busybox --image busybox:1.28 --restart=Never --rm -it busybox -- sh If you don't see a command prompt, try pressing enter. / # ping baidu.com PING baidu.com (220.181.38.148): 56 data bytes 64 bytes from 220.181.38.148: seq=0 ttl=127 time=365.628 ms 64 bytes from 220.181.38.148: seq=1 ttl=127 time=384.185 ms ^C --- baidu.com ping statistics --- 2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max = 365.628/374.906/384.185 ms
测试coredns是否正常
[root@master-1 modules]# kubectl run busybox --image busybox:1.28 --restart=Never --rm -it busybox -- sh If you don't see a command prompt, try pressing enter. / # ping baidu.com PING baidu.com (220.181.38.148): 56 data bytes 64 bytes from 220.181.38.148: seq=0 ttl=127 time=365.628 ms 64 bytes from 220.181.38.148: seq=1 ttl=127 time=384.185 ms ^C --- baidu.com ping statistics --- 2 packets transmitted, 2 packets received, 0% packet loss round-trip min/avg/max = 365.628/374.906/384.185 ms / # nslookup kubernetes.default.svc.cluster.local Server: 10.96.0.10 Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local Name: kubernetes.default.svc.cluster.local Address 1: 10.96.0.1 kubernetes.default.svc.cluster.local
安装dasboard
[root@master-1 ~]# cat kubernetes-dashboard.yaml
'# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
apiVersion: v1
kind: Namespace
metadata:
name: kubernetes-dashboard
---
apiVersion: v1
kind: ServiceAccount
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
ports:
- port: 443
targetPort: 8443
selector:
k8s-app: kubernetes-dashboard
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-certs
namespace: kubernetes-dashboard
type: Opaque
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-csrf
namespace: kubernetes-dashboard
type: Opaque
data:
csrf: ""
---
apiVersion: v1
kind: Secret
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-key-holder
namespace: kubernetes-dashboard
type: Opaque
---
kind: ConfigMap
apiVersion: v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard-settings
namespace: kubernetes-dashboard
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
rules:
# Allow Dashboard to get, update and delete Dashboard exclusive secrets.
- apiGroups: [""]
resources: ["secrets"]
resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs", "kubernetes-dashboard-csrf"]
verbs: ["get", "update", "delete"]
# Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map.
- apiGroups: [""]
resources: ["configmaps"]
resourceNames: ["kubernetes-dashboard-settings"]
verbs: ["get", "update"]
# Allow Dashboard to get metrics.
- apiGroups: [""]
resources: ["services"]
resourceNames: ["heapster", "dashboard-metrics-scraper"]
verbs: ["proxy"]
- apiGroups: [""]
resources: ["services/proxy"]
resourceNames: ["heapster", "http:heapster:", "https:heapster:", "dashboard-metrics-scraper", "http:dashboard-metrics-scraper"]
verbs: ["get"]
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
rules:
# Allow Metrics Scraper to get metrics from the Metrics server
- apiGroups: ["metrics.k8s.io"]
resources: ["pods", "nodes"]
verbs: ["get", "list", "watch"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: kubernetes-dashboard
subjects:
- kind: ServiceAccount
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: kubernetes-dashboard
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: kubernetes-dashboard
subjects:
- kind: ServiceAccount
name: kubernetes-dashboard
namespace: kubernetes-dashboard
---
kind: Deployment
apiVersion: apps/v1
metadata:
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
spec:
replicas: 1
revisionHistoryLimit: 10
selector:
matchLabels:
k8s-app: kubernetes-dashboard
template:
metadata:
labels:
k8s-app: kubernetes-dashboard
spec:
containers:
- name: kubernetes-dashboard
image: kubernetesui/dashboard:v2.0.0-beta8
imagePullPolicy: IfNotPresent
ports:
- containerPort: 8443
protocol: TCP
args:
- --auto-generate-certificates
- --namespace=kubernetes-dashboard
# Uncomment the following line to manually specify Kubernetes API server Host
# If not specified, Dashboard will attempt to auto discover the API server and connect
# to it. Uncomment only if the default does not work.
# - --apiserver-host=http://my-address:port
volumeMounts:
- name: kubernetes-dashboard-certs
mountPath: /certs
# Create on-disk volume to store exec logs
- mountPath: /tmp
name: tmp-volume
livenessProbe:
httpGet:
scheme: HTTPS
path: /
port: 8443
initialDelaySeconds: 30
timeoutSeconds: 30
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
runAsUser: 1001
runAsGroup: 2001
volumes:
- name: kubernetes-dashboard-certs
secret:
secretName: kubernetes-dashboard-certs
- name: tmp-volume
emptyDir: {}
serviceAccountName: kubernetes-dashboard
nodeSelector:
"beta.kubernetes.io/os": linux
# Comment the following tolerations if Dashboard must not be deployed on master
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
---
kind: Service
apiVersion: v1
metadata:
labels:
k8s-app: dashboard-metrics-scraper
name: dashboard-metrics-scraper
namespace: kubernetes-dashboard
spec:
ports:
- port: 8000
targetPort: 8000
selector:
k8s-app: dashboard-metrics-scraper
---
kind: Deployment
apiVersion: apps/v1
metadata:
labels:
k8s-app: dashboard-metrics-scraper
name: dashboard-metrics-scraper
namespace: kubernetes-dashboard
spec:
replicas: 1
revisionHistoryLimit: 10
selector:
matchLabels:
k8s-app: dashboard-metrics-scraper
template:
metadata:
labels:
k8s-app: dashboard-metrics-scraper
annotations:
seccomp.security.alpha.kubernetes.io/pod: 'runtime/default'
spec:
containers:
- name: dashboard-metrics-scraper
image: kubernetesui/metrics-scraper:v1.0.1
imagePullPolicy: IfNotPresent
ports:
- containerPort: 8000
protocol: TCP
livenessProbe:
httpGet:
scheme: HTTP
path: /
port: 8000
initialDelaySeconds: 30
timeoutSeconds: 30
volumeMounts:
- mountPath: /tmp
name: tmp-volume
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
runAsUser: 1001
runAsGroup: 2001
serviceAccountName: kubernetes-dashboard
nodeSelector:
"beta.kubernetes.io/os": linux
# Comment the following tolerations if Dashboard must not be deployed on master
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
volumes:
- name: tmp-volume
emptyDir: {}
[root@master-1 ~]# kubectl apply -f kubernetes-dashboard.yaml
namespace/kubernetes-dashboard created
serviceaccount/kubernetes-dashboard created
service/kubernetes-dashboard created
secret/kubernetes-dashboard-certs created
secret/kubernetes-dashboard-csrf created
secret/kubernetes-dashboard-key-holder created
configmap/kubernetes-dashboard-settings created
role.rbac.authorization.k8s.io/kubernetes-dashboard created
clusterrole.rbac.authorization.k8s.io/kubernetes-dashboard created
rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
clusterrolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
deployment.apps/kubernetes-dashboard created
service/dashboard-metrics-scraper created
deployment.apps/dashboard-metrics-scraper created
查看dashboard的状态
[root@master-1 ~]# kubectl get pods -n kubernetes-dashboard NAME READY STATUS RESTARTS AGE dashboard-metrics-scraper-7445d59dfd-kldp7 1/1 Running 0 38h kubernetes-dashboard-54f5b6dc4b-4v2np 1/1 Running 0 38h
查看dashboard前端的service
[root@master-1 ~]# kubectl get svc -n kubernetes-dashboard NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE dashboard-metrics-scraper ClusterIP 10.108.226.98 <none> 8000/TCP 38h kubernetes-dashboard ClusterIP 10.108.44.41 <none> 443/TCP 38h
修改service type类型变成NodePort
kubectl edit svc kubernetes-dashboard -n kubernetes-dashboard
# Please edit the object below. Lines beginning with a '#' will be ignored,
# Please edit the object below. Lines beginning with a '#' will be ignored,
# and an empty file will abort the edit. If an error occurs while saving this file will be
# reopened with the relevant failures.
#
apiVersion: v1
kind: Service
metadata:
annotations:
kubectl.kubernetes.io/last-applied-configuration: |
{"apiVersion":"v1","kind":"Service","metadata":{"annotations":{},"labels":{"k8s-app":"kubernetes-dashboard"},"name":"kubernetes-dashboard","namespace":"kubernetes-dashboard"},"spec":{"ports":[{"port":443
,"targetPort":8443}],"selector":{"k8s-app":"kubernetes-dashboard"}}} creationTimestamp: "2021-12-15T14:27:58Z"
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
resourceVersion: "2903"
uid: 94758740-9210-46bb-939b-2b742e9b01e6
spec:
clusterIP: 10.108.44.41
clusterIPs:
- 10.108.44.41
ports:
- port: 443
protocol: TCP
targetPort: 8443
selector:
k8s-app: kubernetes-dashboard
sessionAffinity: None
#type: ClusterIP
type: NodePort
status:
loadBalancer: {}
保存退出查看
[root@master-1 ~]# kubectl get svc -n kubernetes-dashboard NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE dashboard-metrics-scraper ClusterIP 10.108.226.98 <none> 8000/TCP 38h kubernetes-dashboard NodePort 10.108.44.41 <none> 443:32341/TCP 38h
浏览器访问https://192.168.10.29:32341/#/login
通过token令牌访问dashboard创建管理员token，具有查看任何空间的权限，可以管理所有资源对象
[root@master-1 ~]# kubectl create clusterrolebinding dashboard-cluster-admin --clusterrole=cluster-admin --serviceaccount=kubernetes-dashboard:kubernetes-dashboard
clusterrolebinding.rbac.authorization.k8s.io/dashboard-cluster-admin created
[root@master-1 ~]# kubectl get secret -n kubernetes-dashboard
NAME TYPE DATA AGE
default-token-b8sqn kubernetes.io/service-account-token 3 38h
kubernetes-dashboard-certs Opaque 0 38h
kubernetes-dashboard-csrf Opaque 1 38h
kubernetes-dashboard-key-holder Opaque 2 38h
kubernetes-dashboard-token-jh4sz kubernetes.io/service-account-token 3 38h
[root@master-1 ~]# kubectl describe secret kubernetes-dashboard-token-jh4sz -n kubernetes-dashboard
Name: kubernetes-dashboard-token-jh4sz
Namespace: kubernetes-dashboard
Labels: <none>
Annotations: kubernetes.io/service-account.name: kubernetes-dashboard
kubernetes.io/service-account.uid: 6a0320fb-d304-43ca-898b-59156d2ee4a9
Type: kubernetes.io/service-account-token
Data
====
token: eyJhbGciOiJSUzI1NiIsImtpZCI6InlJM3BCZ2hXSGJNZVhMekFPaDlFRnJYVlhfeHpOWXVyODBOdlhrQlBCSXcifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdW
Jlcm5ldGVzLWRhc2hib2FyZCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJrdWJlcm5ldGVzLWRhc2hib2FyZC10b2tlbi1qaDRzeiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50Lm5hbWUiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50LnVpZCI6IjZhMDMyMGZiLWQzMDQtNDNjYS04OThiLTU5MTU2ZDJlZTRhOSIsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlcm5ldGVzLWRhc2hib2FyZDprdWJlcm5ldGVzLWRhc2hib2FyZCJ9.FMp3-Vudcl4UeTfZkNVDfrc3kGVQjKG1T6b3cufZG1T5t7BFMIhtBIUm2WeSlTy3tCrh95u-Ei5O-S_O6UolUAjZwDm4ncsjknBHenubAq_A9meAT9Jzvsp7g2pxpXobnNcF4_jJTt0FhQtSNwCzA7IgzxPwZLFOdY88p0YED0mpLk5wODZBnrmsj9rLNZ-u_vprFEnUhrJ5nRxk4W9-sHLFKzyZhyu2T4hf2E3Ahi0FzVT0kMBpg9lPcI02NTv4zq1GPe4y87IbzCP9Uwz8iJNkTQCB-DS8WWT_hs2Y0CUhgQimp39qLfoLX6Eqg2IG2vk0atLZFL5lft403-ONZAca.crt: 1066 bytes
namespace: 20 bytes
注意命令行复制有换行符
eyJhbGciOiJSUzI1NiIsImtpZCI6InlJM3BCZ2hXSGJNZVhMekFPaDlFRnJYVlhfeHpOWXVyODBOdlhrQlBCSXcifQ.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.FMp3-Vudcl4UeTfZkNVDfrc3kGVQjKG1T6b3cufZG1T5t7BFMIhtBIUm2WeSlTy3tCrh95u-Ei5O-S_O6UolUAjZwDm4ncsjknBHenubAq_A9meAT9Jzvsp7g2pxpXobnNcF4_jJTt0FhQtSNwCzA7IgzxPwZLFOdY88p0YED0mpLk5wODZBnrmsj9rLNZ-u_vprFEnUhrJ5nRxk4W9-sHLFKzyZhyu2T4hf2E3Ahi0FzVT0kMBpg9lPcI02NTv4zq1GPe4y87IbzCP9Uwz8iJNkTQCB-DS8WWT_hs2Y0CUhgQimp39qLfoLX6Eqg2IG2vk0atLZFL5lft403-ONZA
通过kubeconfig文件访问dashboard
[root@master-1 ~]# cd /etc/kubernetes/pki
[root@master-1 pki]# ls
apiserver.crt apiserver-etcd-client.key apiserver-kubelet-client.crt ca.crt etcd front-proxy-ca.key front-proxy-client.key sa.pub
apiserver-etcd-client.crt apiserver.key apiserver-kubelet-client.key ca.key front-proxy-ca.crt front-proxy-client.crt sa.key
[root@master-1 pki]# kubectl config set-cluster kubernetes --certificate-authority=./ca.crt --server="https://192.168.40.180:6443" --embed-certs=true --kubeconfig=/root/dashboard-admin.conf
Cluster "kubernetes" set.
[root@master-1 pki]# vim /root/dashboard-admin.conf
[root@master-1 pki]# DEF_NS_ADMIN_TOKEN=$(kubectl get secret kubernetes-dashboard-token-jh4sz -n kubernetes-dashboard -o jsonpath={.data.token}|base64 -d)
[root@master-1 pki]# kubectl config set-credentials dashboard-admin --token=$DEF_NS_ADMIN_TOKEN --kubeconfig=/root/dashboard-admin.conf
User "dashboard-admin" set.
[root@master-1 pki]# kubectl config set-context dashboard-admin@kubernetes --cluster=kubernetes --user=dashboard-admin --kubeconfig=/root/dashboard-admin.conf
Context "dashboard-admin@kubernetes" created.
[root@master-1 pki]# kubectl config use-context dashboard-admin@kubernetes --kubeconfig=/root/dashboard-admin.conf
Switched to context "dashboard-admin@kubernetes".
[root@master-1 pki]# cat /root/dashboard-admin.conf
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUM1ekNDQWMrZ0F3SUJBZ0lCQURBTkJna3Foa2lHOXcwQkFRc0ZBREFWTVJNd0VRWURWUVFERXdwcmRXSmwKY201bGRHVnpNQjRYRFRJeE1USXhOVEUwTURFMU1sb1hEVE14TVRJe
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 server: https://192.168.40.180:6443
name: kubernetes
contexts:
- context:
cluster: kubernetes
user: dashboard-admin
name: dashboard-admin@kubernetes
current-context: dashboard-admin@kubernetes
kind: Config
preferences: {}
users:
- name: dashboard-admin
user:
token: eyJhbGciOiJSUzI1NiIsImtpZCI6InlJM3BCZ2hXSGJNZVhMekFPaDlFRnJYVlhfeHpOWXVyODBOdlhrQlBCSXcifQ.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJrdWJ
lcm5ldGVzLWRhc2hib2FyZCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VjcmV0Lm5hbWUiOiJrdWJlcm5ldGVzLWRhc2hib2FyZC10b2tlbi1qaDRzeiIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50Lm5hbWUiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsImt1YmVybmV0ZXMuaW8vc2VydmljZWFjY291bnQvc2VydmljZS1hY2NvdW50LnVpZCI6IjZhMDMyMGZiLWQzMDQtNDNjYS04OThiLTU5MTU2ZDJlZTRhOSIsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlcm5ldGVzLWRhc2hib2FyZDprdWJlcm5ldGVzLWRhc2hib2FyZCJ9.FMp3-Vudcl4UeTfZkNVDfrc3kGVQjKG1T6b3cufZG1T5t7BFMIhtBIUm2WeSlTy3tCrh95u-Ei5O-S_O6UolUAjZwDm4ncsjknBHenubAq_A9meAT9Jzvsp7g2pxpXobnNcF4_jJTt0FhQtSNwCzA7IgzxPwZLFOdY88p0YED0mpLk5wODZBnrmsj9rLNZ-u_vprFEnUhrJ5nRxk4W9-sHLFKzyZhyu2T4hf2E3Ahi0FzVT0kMBpg9lPcI02NTv4zq1GPe4y87IbzCP9Uwz8iJNkTQCB-DS8WWT_hs2Y0CUhgQimp39qLfoLX6Eqg2IG2vk0atLZFL5lft403-ONZA
安装metrics-server组件注意：这个是k8s在1.17的新特性，如果是1.16版本的可以不用添加，1.17以后要添加。这个参数的作用是Aggregation允许在不修改Kubernetes核心代码的同时扩展Kubernetes API。
[root@master-1 ~]# cat /etc/kubernetes/manifests/kube-apiserver.yaml
apiVersion: v1
kind: Pod
metadata:
annotations:
kubeadm.kubernetes.io/kube-apiserver.advertise-address.endpoint: 192.168.10.29:6443
creationTimestamp: null
labels:
component: kube-apiserver
tier: control-plane
name: kube-apiserver
namespace: kube-system
spec:
containers:
- command:
- kube-apiserver
- --advertise-address=192.168.10.29
- --allow-privileged=true
- --authorization-mode=Node,RBAC
- --client-ca-file=/etc/kubernetes/pki/ca.crt
- --enable-admission-plugins=NodeRestriction
- --enable-bootstrap-token-auth=true
- --enable-aggregator-routing=true # 添加这个参数
- --etcd-cafile=/etc/kubernetes/pki/etcd/ca.crt
- --etcd-certfile=/etc/kubernetes/pki/apiserver-etcd-client.crt
- --etcd-keyfile=/etc/kubernetes/pki/apiserver-etcd-client.key
- --etcd-servers=https://127.0.0.1:2379
- --insecure-port=0
- --kubelet-client-certificate=/etc/kubernetes/pki/apiserver-kubelet-client.crt
- --kubelet-client-key=/etc/kubernetes/pki/apiserver-kubelet-client.key
- --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
- --proxy-client-cert-file=/etc/kubernetes/pki/front-proxy-client.crt
- --proxy-client-key-file=/etc/kubernetes/pki/front-proxy-client.key
- --requestheader-allowed-names=front-proxy-client
- --requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.crt
- --requestheader-extra-headers-prefix=X-Remote-Extra-
- --requestheader-group-headers=X-Remote-Group
- --requestheader-username-headers=X-Remote-User
- --secure-port=6443
- --service-account-issuer=https://kubernetes.default.svc.cluster.local
- --service-account-key-file=/etc/kubernetes/pki/sa.pub
- --service-account-signing-key-file=/etc/kubernetes/pki/sa.key
- --service-cluster-ip-range=10.96.0.0/12
- --tls-cert-file=/etc/kubernetes/pki/apiserver.crt
- --tls-private-key-file=/etc/kubernetes/pki/apiserver.key
image: registry.aliyuncs.com/google_containers/kube-apiserver:v1.20.6
imagePullPolicy: IfNotPresent
livenessProbe:
failureThreshold: 8
httpGet:
host: 192.168.10.29
path: /livez
port: 6443
scheme: HTTPS
initialDelaySeconds: 10
periodSeconds: 10
timeoutSeconds: 15
name: kube-apiserver
readinessProbe:
failureThreshold: 3
httpGet:
host: 192.168.10.29
path: /readyz
port: 6443
scheme: HTTPS
periodSeconds: 1
timeoutSeconds: 15
resources:
requests:
cpu: 250m
startupProbe:
failureThreshold: 24
httpGet:
host: 192.168.10.29
path: /livez
port: 6443
scheme: HTTPS
initialDelaySeconds: 10
periodSeconds: 10
timeoutSeconds: 15
volumeMounts:
- mountPath: /etc/ssl/certs
name: ca-certs
readOnly: true
- mountPath: /etc/pki
name: etc-pki
readOnly: true
- mountPath: /etc/kubernetes/pki
name: k8s-certs
readOnly: true
hostNetwork: true
priorityClassName: system-node-critical
volumes:
- hostPath:
path: /etc/ssl/certs
type: DirectoryOrCreate
name: ca-certs
- hostPath:
path: /etc/pki
type: DirectoryOrCreate
name: etc-pki
- hostPath:
path: /etc/kubernetes/pki
type: DirectoryOrCreate
name: k8s-certs
status: {}
重新更新apiserver配置：
[root@master-1 ~]# kubectl apply -f /etc/kubernetes/manifests/kube-apiserver.yaml pod/kube-apiserver created [root@master-1 ~]# kubectl get pods -n kube-system NAME READY STATUS RESTARTS AGE calico-kube-controllers-558995777d-7g9x7 1/1 Running 0 2d12h calico-node-2qrpn 1/1 Running 0 2d12h calico-node-6zh2p 1/1 Running 0 2d12h calico-node-thfh7 1/1 Running 0 2d12h coredns-7f89b7bc75-jbl2h 1/1 Running 0 2d12h coredns-7f89b7bc75-nr24n 1/1 Running 0 2d12h etcd-master-1 1/1 Running 0 2d12h kube-apiserver 0/1 CrashLoopBackOff 1 12s kube-apiserver-master-1 1/1 Running 0 2m1s kube-controller-manager-master-1 1/1 Running 1 2d12h kube-proxy-5h29b 1/1 Running 0 2d12h kube-proxy-thxv4 1/1 Running 0 2d12h kube-proxy-txm52 1/1 Running 0 2d12h kube-scheduler-master-1 1/1 Running 1 2d12h [root@master-1 ~]# kubectl delete pods kube-apiserver -n kube-system #把CrashLoopBackOff状态的pod删除 pod "kube-apiserver" deleted
查看metrics.yaml 并更新
[root@master-1 ~]# cat metrics.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: metrics-server:system:auth-delegator
labels:
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: system:auth-delegator
subjects:
- kind: ServiceAccount
name: metrics-server
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
name: metrics-server-auth-reader
namespace: kube-system
labels:
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: extension-apiserver-authentication-reader
subjects:
- kind: ServiceAccount
name: metrics-server
namespace: kube-system
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: metrics-server
namespace: kube-system
labels:
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: system:metrics-server
labels:
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
rules:
- apiGroups:
- ""
resources:
- pods
- nodes
- nodes/stats
- namespaces
verbs:
- get
- list
- watch
- apiGroups:
- "extensions"
resources:
- deployments
verbs:
- get
- list
- update
- watch
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: system:metrics-server
labels:
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: system:metrics-server
subjects:
- kind: ServiceAccount
name: metrics-server
namespace: kube-system
---
apiVersion: v1
kind: ConfigMap
metadata:
name: metrics-server-config
namespace: kube-system
labels:
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: EnsureExists
data:
NannyConfiguration: |-
apiVersion: nannyconfig/v1alpha1
kind: NannyConfiguration
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: metrics-server
namespace: kube-system
labels:
k8s-app: metrics-server
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
version: v0.3.6
spec:
selector:
matchLabels:
k8s-app: metrics-server
version: v0.3.6
template:
metadata:
name: metrics-server
labels:
k8s-app: metrics-server
version: v0.3.6
annotations:
scheduler.alpha.kubernetes.io/critical-pod: ''
seccomp.security.alpha.kubernetes.io/pod: 'docker/default'
spec:
priorityClassName: system-cluster-critical
serviceAccountName: metrics-server
containers:
- name: metrics-server
image: k8s.gcr.io/metrics-server-amd64:v0.3.6
imagePullPolicy: IfNotPresent
command:
- /metrics-server
- --metric-resolution=30s
- --kubelet-preferred-address-types=InternalIP
- --kubelet-insecure-tls
ports:
- containerPort: 443
name: https
protocol: TCP
- name: metrics-server-nanny
image: k8s.gcr.io/addon-resizer:1.8.4
imagePullPolicy: IfNotPresent
resources:
limits:
cpu: 100m
memory: 300Mi
requests:
cpu: 5m
memory: 50Mi
env:
- name: MY_POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: MY_POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
volumeMounts:
- name: metrics-server-config-volume
mountPath: /etc/config
command:
- /pod_nanny
- --config-dir=/etc/config
- --cpu=300m
- --extra-cpu=20m
- --memory=200Mi
- --extra-memory=10Mi
- --threshold=5
- --deployment=metrics-server
- --container=metrics-server
- --poll-period=300000
- --estimator=exponential
- --minClusterSize=2
volumes:
- name: metrics-server-config-volume
configMap:
name: metrics-server-config
tolerations:
- key: "CriticalAddonsOnly"
operator: "Exists"
- key: node-role.kubernetes.io/master
effect: NoSchedule
---
apiVersion: v1
kind: Service
metadata:
name: metrics-server
namespace: kube-system
labels:
addonmanager.kubernetes.io/mode: Reconcile
kubernetes.io/cluster-service: "true"
kubernetes.io/name: "Metrics-server"
spec:
selector:
k8s-app: metrics-server
ports:
- port: 443
protocol: TCP
targetPort: https
---
apiVersion: apiregistration.k8s.io/v1
kind: APIService
metadata:
name: v1beta1.metrics.k8s.io
labels:
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
spec:
service:
name: metrics-server
namespace: kube-system
group: metrics.k8s.io
version: v1beta1
insecureSkipTLSVerify: true
groupPriorityMinimum: 100
versionPriority: 100
[root@master-1 ~]# kubectl apply -f metrics.yaml
clusterrolebinding.rbac.authorization.k8s.io/metrics-server:system:auth-delegator created
rolebinding.rbac.authorization.k8s.io/metrics-server-auth-reader created
serviceaccount/metrics-server created
clusterrole.rbac.authorization.k8s.io/system:metrics-server created
clusterrolebinding.rbac.authorization.k8s.io/system:metrics-server created
configmap/metrics-server-config created
deployment.apps/metrics-server created
service/metrics-server created
apiservice.apiregistration.k8s.io/v1beta1.metrics.k8s.io created
[root@master-1 ~]# kubectl get pods -n kube-system | grep metrics
metrics-server-6595f875d6-jhf9p 2/2 Running 0 14s
测试kubectl top命令
[root@master-1 ~]# kubectl top pods -n kube-system NAME CPU(cores) MEMORY(bytes) calico-kube-controllers-558995777d-7g9x7 2m 16Mi calico-node-2qrpn 33m 81Mi calico-node-6zh2p 23m 94Mi calico-node-thfh7 40m 108Mi coredns-7f89b7bc75-jbl2h 4m 25Mi coredns-7f89b7bc75-nr24n 3m 9Mi etcd-master-1 14m 122Mi kube-apiserver-master-1 112m 380Mi kube-controller-manager-master-1 21m 48Mi kube-proxy-5h29b 1m 29Mi kube-proxy-thxv4 1m 17Mi kube-proxy-txm52 1m 15Mi kube-scheduler-master-1 3m 20Mi metrics-server-6595f875d6-jhf9p 1m 16Mi [root@master-1 ~]# kubectl top pods -n kube-system NAME CPU(cores) MEMORY(bytes) calico-kube-controllers-558995777d-7g9x7 2m 16Mi calico-node-2qrpn 33m 81Mi calico-node-6zh2p 23m 94Mi calico-node-thfh7 40m 108Mi coredns-7f89b7bc75-jbl2h 4m 25Mi coredns-7f89b7bc75-nr24n 3m 9Mi etcd-master-1 14m 122Mi kube-apiserver-master-1 112m 380Mi kube-controller-manager-master-1 21m 48Mi kube-proxy-5h29b 1m 29Mi kube-proxy-thxv4 1m 17Mi kube-proxy-txm52 1m 15Mi kube-scheduler-master-1 3m 20Mi metrics-server-6595f875d6-jhf9p 1m 16Mi [root@master-1 ~]# kubectl top node NAME CPU(cores) CPU% MEMORY(bytes) MEMORY% master-1 181m 9% 2049Mi 55% node-1 81m 4% 1652Mi 45% node-2 97m 4% 1610Mi 43%
把scheduler、controller-manager端口变成物理机可以监听的端口
[root@master-1 ~]# kubectl get cs
Warning: v1 ComponentStatus is deprecated in v1.19+
NAME STATUS MESSAGE ERROR
scheduler Unhealthy Get "http://127.0.0.1:10251/healthz": dial tcp 127.0.0.1:10251: connect: connection refused
controller-manager Unhealthy Get "http://127.0.0.1:10252/healthz": dial tcp 127.0.0.1:10252: connect: connection refused
etcd-0 Healthy {"health":"true"}
默认在1.19之后10252和10251都是绑定在127的，如果想要通过prometheus监控，会采集不到数据，所以可以把端口绑定到物理机
可按如下方法处理：
vim /etc/kubernetes/manifests/kube-scheduler.yaml
修改如下内容：
把--bind-address=127.0.0.1变成--bind-address=192.168.10.29
把httpGet:字段下的hosts由127.0.0.1变成192.168.10.29
把—port=0删除
#注意：192.168.40.180是k8s的控制节点xianchaomaster1的ip
vim /etc/kubernetes/manifests/kube-controller-manager.yaml
把--bind-address=127.0.0.1变成--bind-address=192.168.10.29
把httpGet:字段下的hosts由127.0.0.1变成192.168.10.29
[root@master-1 ~]# cat /etc/kubernetes/manifests/kube-scheduler.yaml
apiVersion: v1
kind: Pod
metadata:
creationTimestamp: null
labels:
component: kube-scheduler
tier: control-plane
name: kube-scheduler
namespace: kube-system
spec:
containers:
- command:
- kube-scheduler
- --authentication-kubeconfig=/etc/kubernetes/scheduler.conf
- --authorization-kubeconfig=/etc/kubernetes/scheduler.conf
- --bind-address=192.168.10.29
- --kubeconfig=/etc/kubernetes/scheduler.conf
- --leader-elect=true
image: registry.aliyuncs.com/google_containers/kube-scheduler:v1.20.6
imagePullPolicy: IfNotPresent
livenessProbe:
failureThreshold: 8
httpGet:
host: 192.168.10.29
path: /healthz
port: 10259
scheme: HTTPS
initialDelaySeconds: 10
periodSeconds: 10
timeoutSeconds: 15
name: kube-scheduler
resources:
requests:
cpu: 100m
startupProbe:
failureThreshold: 24
httpGet:
host: 192.168.10.29
path: /healthz
port: 10259
scheme: HTTPS
initialDelaySeconds: 10
periodSeconds: 10
timeoutSeconds: 15
volumeMounts:
- mountPath: /etc/kubernetes/scheduler.conf
name: kubeconfig
readOnly: true
hostNetwork: true
priorityClassName: system-node-critical
volumes:
- hostPath:
path: /etc/kubernetes/scheduler.conf
type: FileOrCreate
name: kubeconfig
status: {}
修改之后在k8s各个节点重启下kubelet
systemctl restart kubelet
[root@master-1 ~]# ss -antulp | grep 10251
tcp LISTEN 0 128 :::10251 :::* users:(("kube-scheduler",pid=7512,fd=7))
[root@master-1 ~]# ss -antulp | grep 10251
tcp LISTEN 0 128 :::10251 :::* users:(("kube-scheduler",pid=7512,fd=7))
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