关闭防火墙
[root@gcv01 ~]# systemctl stop firewalld
[root@gcv01 ~]# systemctl disable firewalld
关闭selinux、关闭swap
sed -i 's/enforcing/disabled/' /etc/selinux/config
setenforce 0
sed -ri 's/.swap./#&/' /etc/fstab
swapoff -a
添加主机
cat >> /etc/hosts << EOF
192.168.10.1 node1
192.168.10.2 node0
EOF
同步时间
yum install ntpdate -y
ntpdate time.windows.com
k8s 部署
镜像
cat > /etc/yum.repos.d/kubernetes.repo << EOF
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
安装工具
j[root@gcv01 ~]# yum install yum-utils -y
报一下错误：1开外网 2换地址
http://yum.tbsite.net/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
docker 安装
yum install docker-ce -y
k8s 软件包下载
yum install -y kubelet-1.23.1 kubeadm-1.23.1 kubectl-1.23.1
开机启动
systemctl enable kubelet
关闭交换分区
swapoff -a
离线包制作
docker pull registry.aliyuncs.com/google_containers/kube-apiserver:v1.23.1
docker pull registry.aliyuncs.com/google_containers/kube-controller-manager:v1.23.1
docker pull registry.aliyuncs.com/google_containers/kube-scheduler:v1.23.1
docker pull registry.aliyuncs.com/google_containers/kube-proxy:v1.23.1
docker pull registry.aliyuncs.com/google_containers/pause:3.6
docker pull registry.aliyuncs.com/google_containers/etcd:3.5.1-0
docker pull registry.aliyuncs.com/google_containers/coredns:v1.8.6
docker save -o kube-apiserver.tar registry.aliyuncs.com/google_containers/kube-apiserver:v1.23.1
docker save -o kube-controller-manager.tar registry.aliyuncs.com/google_containers/kube-controller-manager:v1.23.1
docker save -o kube-scheduler.tar registry.aliyuncs.com/google_containers/kube-scheduler:v1.23.1
docker save -o kube-proxy.tar registry.aliyuncs.com/google_containers/kube-proxy:v1.23.1
docker save -o pause.tar registry.aliyuncs.com/google_containers/pause:3.6
docker save -o etcd.tar registry.aliyuncs.com/google_containers/etcd:3.5.1-0
docker save -o coredns.tar registry.aliyuncs.com/google_containers/coredns:v1.8.6
docker load -i kube-apiserver.tar
docker load -i kube-controller-manager.tar
docker load -i kube-scheduler.tar
docker load -i kube-proxy.tar
docker load -i pause.tar
docker load -i etcd.tar
docker load -i coredns.tar
初始化 master
jkubeadm init --kubernetes-version=1.23.1 \
--apiserver-advertise-address=10.xx.xx.xx \
--image-repository registry.aliyuncs.com/google_containers \
--pod-network-cidr=10.244.0.0/16 \
--ignore-preflight-errors=SystemVerification \
--ignore-preflight-errors=Swap
检查组件是否安装正常
kubectl get componentstatuses
如果出现安装失败
cgroup cubectl 与docker 不一致
更改docker 启动方式
daemon.json
{
"registry-mirrors": ["https://docker.mirrors.ustc.edu.cn"],
"exec-opts": ["native.cgroupdriver=systemd"]
}
master重装
sudo kubeadm reset -f
查看状态
journalctl -u kubelet
master获取证书
[root@gcv01 ~]# kubeadm token create --print-join-command
kubeadm join 10.251.95.25:6443 --token jgxiv1.kwjb17a74jj8rln4 --discovery-token-ca-cert-hash sha256:028c9db9273470f0fd28f3ccce8d241539a82818550a319ad31814cc9169ddf9
node 执行以上命令挂node, node 不挂之前sytemctl status kubelet 非active状态并且var/lib/kubelet/config.yaml文件为空
j[root@gcv05 ~]# kubeadm join 10.251.95.25:6443 --token jgxiv1.kwjb17a74jj8rln4 --discovery-token-ca-cert-hash sha256:028c9db9273470f0fd28f3ccce8d241539a82818550a319ad31814cc9169ddf9
[preflight] Running pre-flight checks
[WARNING Service-Docker]: docker service is not enabled, please run 'systemctl enable docker.service'
[WARNING SystemVerification]: this Docker version is not on the list of validated versions: 26.1.4. Latest validated version: 20.10
[preflight] Reading configuration from the cluster...
[preflight] FYI: You can look at this config file with 'kubectl -n kube-system get cm kubeadm-config -o yaml'
[kubelet-start] Writing kubelet configuration to file "/var/lib/kubelet/config.yaml"
[kubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubeadm-flags.env"
[kubelet-start] Starting the kubelet
[kubelet-start] Waiting for the kubelet to perform the TLS Bootstrap...
This node has joined the cluster:
* Certificate signing request was sent to apiserver and a response was received.
* The Kubelet was informed of the new secure connection details.
Run 'kubectl get nodes' on the control-plane to see this node join the cluster.
修改权限
kubectl label node node1 node-role.kubernetes.io/worker=worker
下载网络配置
wget https://docs.projectcalico.org/v3.23/manifests/calico.yaml --no-check-certificate
安装
kubectl apply -f calico.yaml
更改鏡像所有的地址 quay.io/flysangel/calico/kube-controllers:v3.25.0
安装面板 dashboard
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.7.0/aio/deploy/recommended.yaml
更改具體鏡像地址
# 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:
securityContext:
seccompProfile:
type: RuntimeDefault
containers:
- name: kubernetes-dashboard
image: quay.io/azimuth/docker.io/kubernetesui/dashboard:v2.7.0
imagePullPolicy: Always
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:
"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
spec:
securityContext:
seccompProfile:
type: RuntimeDefault
containers:
- name: dashboard-metrics-scraper
image: quay.io/platform9/dashboard-metrics-scraper:v1.0.8-pmk-2925185
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:
"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: {}
端口设置
2.1 type类型
默认Dashboard只能集群内部访问，修改Service为NodePort类型，暴露到外部
kubectl -n kubernetes-dashboard edit service kubernetes-dashboard
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: "2024-06-25T09:17:35Z"
labels:
k8s-app: kubernetes-dashboard
name: kubernetes-dashboard
namespace: kubernetes-dashboard
resourceVersion: "15816"
uid: c58cc193-b05c-4587-8d59-c027906a1e50
spec:
clusterIP: 10.97.190.52
clusterIPs:
- 10.97.190.52
externalTrafficPolicy: Cluster
internalTrafficPolicy: Cluster
ipFamilies:
- IPv4
ipFamilyPolicy: SingleStack
ports:
- nodePort: 30050
port: 443
protocol: TCP
targetPort: 8443
selector:
k8s-app: kubernetes-dashboard
sessionAffinity: None
type: NodePort
status:
loadBalancer: {}
将type对应的参数修改为NodePort
查看端口
kubectl get svc -A |grep kubernetes-dashboard
启动服务
[root@gcv01 yaml]# k apply -f dash.yaml
获取到token
kubectl -n kubernetes-dashboard get secret $(kubectl -n kubernetes-dashboard get sa/admin-user -o jsonpath="{.secrets[0].name}") -o go-template="{ {.data.token | base64decode}}"
jeyJhbGciOiJSUzI1NiIsImtpZCI6IkNURG92MzZhaldvMTdjeFc3RC1ENzdPenhnNVJGYzRLTGRVMERpZ0RzY0EifQ.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.CTX0-7obNu11jP1ehU3L_18jjaAZnOKfz-_AXfgNKbfZuNrhJpdO_QBZuETu7Q-z6lHb_7FS6RrXDuKFWSBKpvtybieCIX5y3VPFif4_UN-OKGLk54vjD4gdd263sb2--zqIrpo05qx-ZWvZPoyGmugYEk8MiCfbOdOCiHC9AYEhEmOX4NrymSM3AyR5y9OJmTfsYqrlwbaJvD1uHuH3j0aGHnLZUHZ2SNqB9YPtI5umtjdX00_q9Tq0-xMM7Irhes6YOAAECRjCJV1lONOrEBO7KKJ1I5V8fh2ALhMNibki5nhFceS5ugZGCwKLNnDPKnt2VUl9R_SSOGD8g7LMLA
