k8s集群基于Flannel网络插件部署凡人修仙传
作者：尹正杰
版权声明：原创作品，谢绝转载！否则将追究法律责任。
目录
一.K8S概述
1.什么是K8S
Kubernetes 也称为 K8s，是用于自动部署、扩缩和管理容器化应用程序的开源系统。
它将组成应用程序的容器组合成逻辑单元，以便于管理和服务发现。Kubernetes 源自 Google 15 年生产环境的运维经验，同时凝聚了社区的最佳创意和实践。
Google每周运行数十亿个容器，Kubernetes基于与之相同的原则来设计，能够在不扩张运维团队的情况下进行规模扩展。
2.K8S的市场如何
如上所示，k8s的市场相对来时还是处于薪资待遇偏高的方向。
二.K8S集群部署
1.环境准备
| 主机名 | IP地址 | 操作系统 | 硬件配置 |
|---|---|---|---|
| master231 | 10.0.0.231 | Ubuntu 22.04 LTS | 2core+，4GB+，50GB+ |
| worker232 | 10.0.0.232 | Ubuntu 22.04 LTS | 2core+，4GB+，50GB+ |
| worker233 | 10.0.0.233 | Ubuntu 22.04 LTS | 2core+，4GB+，50GB+ |
2.准备软件包
温馨提示:
没有资料包，视频，笔记的小伙伴，可以在点击抖音的'小风车'留资直接问客服小姐姐要即可。
1.上传文件到服务器
[root@master231 ~]# du -sh softwares/
2.7G softwares/
[root@master231 ~]#
[root@master231 ~]# ll softwares/
total 32
drwxr-xr-x 8 root root 4096 Dec 26 16:04 ./
drwx------ 7 root root 4096 Dec 26 15:55 ../
drwxr-xr-x 4 root root 4096 Dec 26 16:04 calico-v3.25.2/
drwxr-xr-x 3 root root 4096 Dec 26 15:37 Docker/
drwxr-xr-x 2 root root 4096 Dec 26 15:28 Flannel-v0.26.5/
drwxr-xr-x 2 root root 4096 Dec 26 15:28 Game/
drwxr-xr-x 2 root root 4096 Dec 26 15:48 Kubernetes/
drwxr-xr-x 2 root root 4096 Dec 26 15:29 MetallB-v0.15.2/
[root@master231 ~]#
2.将软件拷贝到其他主机
[root@master231 ~]# scp -r softwares/ 10.0.0.232:~
[root@master231 ~]# scp -r softwares/ 10.0.0.233:~
3.安装docker环境
1.进入到docker的软件目录
[root@master231 ~]# cd softwares/Docker/
[root@master231 Docker]#
[root@master231 Docker]# ll
total 82324
drwxr-xr-x 2 root root 4096 Dec 25 10:46 ./
drwxr-xr-x 6 root root 4096 Dec 25 10:46 ../
-rw-r--r-- 1 root root 84289454 Dec 25 10:46 oldboyedu-autoinstall-docker-docker-compose.tar.gz
[root@master231 Docker]#
2.解压压缩包
[root@master231 Docker]# tar xf oldboyedu-autoinstall-docker-docker-compose.tar.gz
[root@master231 Docker]#
[root@master231 Docker]# ll
total 82332
drwxr-xr-x 3 root root 4096 Dec 25 10:50 ./
drwxr-xr-x 6 root root 4096 Dec 25 10:46 ../
drwxr-xr-x 2 root root 4096 May 9 2024 download/
-rwxr-xr-x 1 root root 3513 Jul 19 2024 install-docker.sh*
-rw-r--r-- 1 root root 84289454 Dec 25 10:46 oldboyedu-autoinstall-docker-docker-compose.tar.gz
[root@master231 Docker]#
3.安装docker
[root@master231 Docker]# ./install-docker.sh i
4.检查docker版本
[root@master231 Docker]# docker version
Client:
Version: 20.10.24
API version: 1.41
Go version: go1.19.7
Git commit: 297e128
Built: Tue Apr 4 18:17:06 2023
OS/Arch: linux/amd64
Context: default
Experimental: true
Server: Docker Engine - Community
Engine:
Version: 20.10.24
API version: 1.41 (minimum version 1.12)
Go version: go1.19.7
Git commit: 5d6db84
Built: Tue Apr 4 18:23:02 2023
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: v1.6.20
GitCommit: 2806fc1057397dbaeefbea0e4e17bddfbd388f38
runc:
Version: 1.1.5
GitCommit: v1.1.5-0-gf19387a6
docker-init:
Version: 0.19.0
GitCommit: de40ad0
[root@master231 Docker]#
5.其他2个节点重复上述步骤即可
略，见视频。
[root@worker232 Docker]# docker version
Client:
Version: 20.10.24
API version: 1.41
Go version: go1.19.7
Git commit: 297e128
Built: Tue Apr 4 18:17:06 2023
OS/Arch: linux/amd64
Context: default
Experimental: true
Server: Docker Engine - Community
Engine:
Version: 20.10.24
API version: 1.41 (minimum version 1.12)
Go version: go1.19.7
Git commit: 5d6db84
Built: Tue Apr 4 18:23:02 2023
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: v1.6.20
GitCommit: 2806fc1057397dbaeefbea0e4e17bddfbd388f38
runc:
Version: 1.1.5
GitCommit: v1.1.5-0-gf19387a6
docker-init:
Version: 0.19.0
GitCommit: de40ad0
[root@worker232 Docker]#
[root@worker233 Docker]# docker version
Client:
Version: 20.10.24
API version: 1.41
Go version: go1.19.7
Git commit: 297e128
Built: Tue Apr 4 18:17:06 2023
OS/Arch: linux/amd64
Context: default
Experimental: true
Server: Docker Engine - Community
Engine:
Version: 20.10.24
API version: 1.41 (minimum version 1.12)
Go version: go1.19.7
Git commit: 5d6db84
Built: Tue Apr 4 18:23:02 2023
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: v1.6.20
GitCommit: 2806fc1057397dbaeefbea0e4e17bddfbd388f38
runc:
Version: 1.1.5
GitCommit: v1.1.5-0-gf19387a6
docker-init:
Version: 0.19.0
GitCommit: de40ad0
[root@worker233 Docker]#
4.Linux系统基础优化
1.k8s集群所有节点禁用不必要的服务
systemctl disable --now NetworkManager
2.k8s集群所有节点禁用swap分区【不禁用swap将会导致kubelet无法启动！】
swapoff -a && sysctl -w vm.swappiness=0
sed -ri '/^[^#]*swap/s@^@#@' /etc/fstab
grep swap /etc/fstab
3.安装ipvsadm相关工具
apt -y install ipvsadm ipset sysstat conntrack
4.创建要开机自动加载的模块配置文件
cat > /etc/modules-load.d/ipvs.conf << 'EOF'
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_fo
ip_vs_nq
ip_vs_sed
ip_vs_ftp
ip_vs_sh
nf_conntrack
ip_tables
ip_set
xt_set
ipt_set
ipt_rpfilter
ipt_REJECT
ipip
EOF
5.将"systemd-modules-load"服务设置为开机自启动
systemctl enable --now systemd-modules-load && systemctl status systemd-modules-load
6.启用模块
lsmod | grep --color=auto -e ip_vs -e nf_conntrack
7.内核参数调优
cat > /etc/sysctl.d/k8s.conf <<'EOF'
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
fs.may_detach_mounts = 1
vm.overcommit_memory=1
vm.panic_on_oom=0
fs.inotify.max_user_watches=89100
fs.file-max=52706963
fs.nr_open=52706963
net.netfilter.nf_conntrack_max=2310720
net.ipv4.tcp_keepalive_time = 600
net.ipv4.tcp_keepalive_probes = 3
net.ipv4.tcp_keepalive_intvl =15
net.ipv4.tcp_max_tw_buckets = 36000
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_max_orphans = 327680
net.ipv4.tcp_orphan_retries = 3
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.ip_conntrack_max = 65536
net.ipv4.tcp_max_syn_backlog = 16384
net.ipv4.tcp_timestamps = 0
net.core.somaxconn = 16384
EOF
sysctl --system
8.重启服务使得配置生效
reboot
9.验证配置是否生效【如上图所示】
free -h
lsmod | grep --color=auto -e ip_vs -e nf_conntrack
5.安装kubectl,kubeadm,kubelet组件
| 组件名称\作用 | 描述 |
|---|---|
| kubectl | 用来管理k8s集群的客户端工具。 |
| kubeadm | 用来快速初始化k8s集群工具。 |
| kubelet | 用静态Pod技术快速启动master各组件。 |
1.进入到k8s的软件目录
[root@master231 ~]# cd softwares/Kubernetes/
[root@master231 Kubernetes]#
[root@master231 Kubernetes]# ll
total 978684
drwxr-xr-x 2 root root 4096 Dec 25 10:46 ./
drwxr-xr-x 6 root root 4096 Dec 25 10:46 ../
-rw-r--r-- 1 root root 85038934 Dec 25 10:46 oldboyedu-kubeadm-kubectl-kubelet-1.23.17.tar.gz
-rw-r--r-- 1 root root 756698112 Dec 25 10:46 oldboyedu-master-1.23.17.tar.gz
-rw-r--r-- 1 root root 160419328 Dec 25 10:46 oldboyedu-slave-1.23.17.tar.gz
[root@master231 Kubernetes]#
2.解压软件包
[root@master231 Kubernetes]# tar xf oldboyedu-kubeadm-kubectl-kubelet-1.23.17.tar.gz
[root@master231 Kubernetes]#
[root@master231 Kubernetes]# ll
total 1061756
drwxr-xr-x 2 root root 4096 Dec 25 10:58 ./
drwxr-xr-x 6 root root 4096 Dec 25 10:46 ../
-rw-r--r-- 1 root root 1510 Mar 29 2025 apt-transport-https_2.4.14_all.deb
-rw-r--r-- 1 root root 33512 Mar 24 2022 conntrack_1%3a1.4.6-2build2_amd64.deb
-rw-r--r-- 1 root root 18944068 Jan 20 2023 cri-tools_1.26.0-00_amd64.deb
-rw-r--r-- 1 root root 84856 Mar 24 2022 ebtables_2.0.11-4build2_amd64.deb
-rw-r--r-- 1 root root 8874224 Mar 1 2023 kubeadm_1.23.17-00_amd64.deb
-rw-r--r-- 1 root root 9239020 Mar 1 2023 kubectl_1.23.17-00_amd64.deb
-rw-r--r-- 1 root root 19934760 Mar 1 2023 kubelet_1.23.17-00_amd64.deb
-rw-r--r-- 1 root root 27586224 Jan 20 2023 kubernetes-cni_1.2.0-00_amd64.deb
-rw-r--r-- 1 root root 85038934 Dec 25 10:46 oldboyedu-kubeadm-kubectl-kubelet-1.23.17.tar.gz
-rw-r--r-- 1 root root 756698112 Dec 25 10:46 oldboyedu-master-1.23.17.tar.gz
-rw-r--r-- 1 root root 160419328 Dec 25 10:46 oldboyedu-slave-1.23.17.tar.gz
-rw-r--r-- 1 root root 349118 Mar 26 2022 socat_1.7.4.1-3ubuntu4_amd64.deb
[root@master231 Kubernetes]#
3.安装软件包
[root@master231 Kubernetes]# dpkg -i *.deb
[root@master231 Kubernetes]# kubeadm version
kubeadm version: &version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.17", GitCommit:"953be8927218ec8067e1af2641e540238ffd7576", GitTreeState:"clean", BuildDate:"2023-02-22T13:33:14Z", GoVersion:"go1.19.6", Compiler:"gc", Platform:"linux/amd64"}
[root@master231 Kubernetes]#
[root@master231 Kubernetes]# kubelet --version
Kubernetes v1.23.17
[root@master231 Kubernetes]#
[root@master231 Kubernetes]# kubectl version
Client Version: version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.17", GitCommit:"953be8927218ec8067e1af2641e540238ffd7576", GitTreeState:"clean", BuildDate:"2023-02-22T13:34:27Z", GoVersion:"go1.19.6", Compiler:"gc", Platform:"linux/amd64"}
The connection to the server localhost:8080 was refused - did you specify the right host or port?
[root@master231 Kubernetes]#
4.其他节点重复此操作
略，见视频。
[root@worker232 Kubernetes]# kubeadm version
kubeadm version: &version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.17", GitCommit:"953be8927218ec8067e1af2641e540238ffd7576", GitTreeState:"clean", BuildDate:"2023-02-22T13:33:14Z", GoVersion:"go1.19.6", Compiler:"gc", Platform:"linux/amd64"}
[root@worker232 Kubernetes]#
[root@worker232 Kubernetes]# kubectl version
Client Version: version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.17", GitCommit:"953be8927218ec8067e1af2641e540238ffd7576", GitTreeState:"clean", BuildDate:"2023-02-22T13:34:27Z", GoVersion:"go1.19.6", Compiler:"gc", Platform:"linux/amd64"}
The connection to the server localhost:8080 was refused - did you specify the right host or port?
[root@worker232 Kubernetes]#
[root@worker232 Kubernetes]# kubelet --version
Kubernetes v1.23.17
[root@worker232 Kubernetes]#
[root@worker233 Kubernetes]# kubeadm version
kubeadm version: &version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.17", GitCommit:"953be8927218ec8067e1af2641e540238ffd7576", GitTreeState:"clean", BuildDate:"2023-02-22T13:33:14Z", GoVersion:"go1.19.6", Compiler:"gc", Platform:"linux/amd64"}
[root@worker233 Kubernetes]#
[root@worker233 Kubernetes]# kubectl version
Client Version: version.Info{Major:"1", Minor:"23", GitVersion:"v1.23.17", GitCommit:"953be8927218ec8067e1af2641e540238ffd7576", GitTreeState:"clean", BuildDate:"2023-02-22T13:34:27Z", GoVersion:"go1.19.6", Compiler:"gc", Platform:"linux/amd64"}
The connection to the server localhost:8080 was refused - did you specify the right host or port?
[root@worker233 Kubernetes]#
[root@worker233 Kubernetes]# kubelet --version
Kubernetes v1.23.17
[root@worker233 Kubernetes]#
5.启动kubelet组件
[root@master231 ~]# systemctl enable --now kubelet.service
6.生成k8s集群配置文件
1.生成默认的初始化信息
[root@master231 ~]# kubeadm config print init-defaults > k8s-cluster-init.yml
[root@master231 ~]#
2.修改配置文件
[root@master231 ~]# cat k8s-cluster-init.yml
apiVersion: kubeadm.k8s.io/v1beta3
bootstrapTokens:
- groups:
- system:bootstrappers:kubeadm:default-node-token
# 指定的是toekn信息
token: oldboy.yinzhengjiejason
ttl: 24h0m0s
usages:
- signing
- authentication
kind: InitConfiguration
localAPIEndpoint:
# 指定apiserver的IP地址
advertiseAddress: 10.0.0.231
# 指定apiserver的端口号
bindPort: 6443
nodeRegistration:
# 指定cri的底层运行时套接字文件
criSocket: /var/run/dockershim.sock
# 指定镜像的拉取策略
imagePullPolicy: IfNotPresent
# 指定master节点的名称
name: master231
taints: null
---
apiServer:
timeoutForControlPlane: 4m0s
apiVersion: kubeadm.k8s.io/v1beta3
certificatesDir: /etc/kubernetes/pki
clusterName: kubernetes
controllerManager: {}
dns: {}
etcd:
local:
dataDir: /var/lib/etcd
# 指定镜像仓库的地址
imageRepository: registry.aliyuncs.com/google_containers
kind: ClusterConfiguration
# 指定k8s的安装版本
kubernetesVersion: 1.23.17
networking:
# 指定DNS的域名
dnsDomain: oldboyedu.com
# 指定svc的网段地址
serviceSubnet: 10.200.0.0/16
# 指定Pod的网段地址
podSubnet: 10.100.0.0/16
scheduler: {}
---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
# kube-proxy 模式
mode: ipvs
---
apiVersion: kubelet.config.k8s.io/v1beta1
authentication:
anonymous:
enabled: false
webhook:
cacheTTL: 0s
enabled: true
x509:
clientCAFile: /etc/kubernetes/pki/ca.crt
authorization:
mode: Webhook
webhook:
cacheAuthorizedTTL: 0s
cacheUnauthorizedTTL: 0s
clusterDNS:
- 10.200.0.10
clusterDomain: oldboyedu.com
cpuManagerReconcilePeriod: 0s
evictionPressureTransitionPeriod: 0s
fileCheckFrequency: 0s
healthzBindAddress: 127.0.0.1
healthzPort: 10248
httpCheckFrequency: 0s
imageMinimumGCAge: 0s
kind: KubeletConfiguration
# 配置 cgroup driver
cgroupDriver: systemd
logging: {}
memorySwap: {}
nodeStatusReportFrequency: 0s
nodeStatusUpdateFrequency: 0s
rotateCertificates: true
runtimeRequestTimeout: 0s
shutdownGracePeriod: 0s
shutdownGracePeriodCriticalPods: 0s
staticPodPath: /etc/kubernetes/manifests
streamingConnectionIdleTimeout: 0s
syncFrequency: 0s
volumeStatsAggPeriod: 0s
[root@master231 ~]#
3.检查配置文件是否出错
[root@master231 ~]# kubeadm init --config k8s-cluster-init.yml --dry-run
参考链接:
https://kubernetes.io/docs/reference/config-api/kubeadm-config.v1beta3/
7.初始化master组件
1.导入master组件镜像
[root@master231 ~]# docker load -i softwares/Kubernetes/oldboyedu-master-1.23.17.tar.gz
2.初始化master
[root@master231 ~]# kubeadm init --config k8s-cluster-init.yml
...
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 10.0.0.231:6443 --token oldboy.yinzhengjiejason \
--discovery-token-ca-cert-hash sha256:9fd08c7958fbd8db78c64557050d334294961e4d48a2e9b09dc409913b27f1ec
[root@master231 ~]#
3.准备Kubeconfig认证文件
[root@master231 ~]# mkdir -p $HOME/.kube
[root@master231 ~]# sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
[root@master231 ~]# sudo chown $(id -u):$(id -g) $HOME/.kube/config
[root@master231 ~]#
4.查看master组件
[root@master231 ~]# kubectl get cs
Warning: v1 ComponentStatus is deprecated in v1.19+
NAME STATUS MESSAGE ERROR
controller-manager Healthy ok
scheduler Healthy ok
etcd-0 Healthy {"health":"true","reason":""}
[root@master231 ~]#
5.查看工作节点
[root@master231 ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
master231 NotReady control-plane,master 2m6s v1.23.17
[root@master231 ~]#
8.部署worker组件
1.导入镜像
[root@worker232 ~]# docker load -i softwares/Kubernetes/oldboyedu-slave-1.23.17.tar.gz
[root@worker233 ~]# docker load -i softwares/Kubernetes/oldboyedu-slave-1.23.17.tar.gz
2.worker加入集群
[root@worker232 ~]# kubeadm join 10.0.0.231:6443 --token oldboy.yinzhengjiejason \
--discovery-token-ca-cert-hash sha256:9fd08c7958fbd8db78c64557050d334294961e4d48a2e9b09dc409913b27f1ec
[root@worker233 ~]# kubeadm join 10.0.0.231:6443 --token oldboy.yinzhengjiejason \
--discovery-token-ca-cert-hash sha256:9fd08c7958fbd8db78c64557050d334294961e4d48a2e9b09dc409913b27f1ec
3.master查看node信息
[root@master231 ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
master231 NotReady control-plane,master 5m8s v1.23.17
worker232 NotReady <none> 2m10s v1.23.17
worker233 NotReady <none> 30s v1.23.17
[root@master231 ~]#
[root@master231 ~]#
[root@master231 ~]# kubectl get nodes -o wide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
master231 NotReady control-plane,master 5m20s v1.23.17 10.0.0.231 <none> Ubuntu 22.04.4 LTS 5.15.0-119-generic docker://20.10.24
worker232 NotReady <none> 2m22s v1.23.17 10.0.0.232 <none> Ubuntu 22.04.4 LTS 5.15.0-119-generic docker://20.10.24
worker233 NotReady <none> 42s v1.23.17 10.0.0.233 <none> Ubuntu 22.04.4 LTS 5.15.0-119-generic docker://20.10.24
[root@master231 ~]#
9.部署Calico网络插件
1.导入镜像
[root@master231 ~]# cd /root/softwares/calico-v3.25.2/images/ && for i in `ls -1 `;do docker load -i `pwd`/$i;done
[root@worker232 ~]# cd /root/softwares/calico-v3.25.2/images/ && for i in `ls -1 `;do docker load -i `pwd`/$i;done
[root@worker233 ~]# cd /root/softwares/calico-v3.25.2/images/ && for i in `ls -1 `;do docker load -i `pwd`/$i;done
2.修改Pod的网段
[root@master231 ~]# grep 16 softwares/calico-v3.25.2/custom-resources.yaml
cidr: 192.168.0.0/16
[root@master231 ~]#
[root@master231 ~]# sed -i '/16/s#192.168#10.100#' softwares/calico-v3.25.2/custom-resources.yaml
[root@master231 ~]#
[root@master231 ~]# grep 16 softwares/calico-v3.25.2/custom-resources.yaml
cidr: 10.100.0.0/16
[root@master231 ~]#
3.安装Calico的tigera-operator组件
[root@master231 ~]# kubectl create -f softwares/calico-v3.25.2/tigera-operator.yaml
[root@master231 ~]# kubectl get ns
NAME STATUS AGE
default Active 18m
kube-node-lease Active 18m
kube-public Active 18m
kube-system Active 18m
tigera-operator Active 18s
[root@master231 ~]#
[root@master231 ~]# kubectl get pods -n tigera-operator -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
tigera-operator-8d497bb9f-g2vdt 1/1 Running 0 31s 10.0.0.233 worker233 <none> <none>
[root@master231 ~]#
4.安装Calico组件
[root@master231 ~]# kubectl apply -f softwares/calico-v3.25.2/custom-resources.yaml
installation.operator.tigera.io/default created
apiserver.operator.tigera.io/default created
[root@master231 ~]#
5.检查Calico的Pod是否安装成功
[root@master231 ~]# kubectl get ns
NAME STATUS AGE
calico-apiserver Active 42s
calico-system Active 70s
default Active 21m
kube-node-lease Active 21m
kube-public Active 21m
kube-system Active 21m
tigera-operator Active 2m48s
[root@master231 ~]#
[root@master231 ~]# kubectl get pods -n calico-apiserver -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
calico-apiserver-748ff87c77-82jtk 1/1 Running 0 58s 10.100.203.130 worker232 <none> <none>
calico-apiserver-748ff87c77-rrkc7 1/1 Running 0 58s 10.100.140.69 worker233 <none> <none>
[root@master231 ~]#
[root@master231 ~]# kubectl get pods -n calico-system -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
calico-kube-controllers-76d5c7cfc-p72bk 1/1 Running 0 94s 10.100.140.68 worker233 <none> <none>
calico-node-pq956 1/1 Running 0 94s 10.0.0.231 master231 <none> <none>
calico-node-q9fjn 1/1 Running 0 94s 10.0.0.233 worker233 <none> <none>
calico-node-rzspq 1/1 Running 0 94s 10.0.0.232 worker232 <none> <none>
calico-typha-66684bc756-4bh8m 1/1 Running 0 88s 10.0.0.233 worker233 <none> <none>
calico-typha-66684bc756-jq9sj 1/1 Running 0 95s 10.0.0.232 worker232 <none> <none>
csi-node-driver-jknlw 2/2 Running 0 94s 10.100.160.129 master231 <none> <none>
csi-node-driver-pnxls 2/2 Running 0 94s 10.100.203.129 worker232 <none> <none>
csi-node-driver-zw2th 2/2 Running 0 94s 10.100.140.65 worker233 <none> <none>
[root@master231 ~]#
6.再次查看集群状态
[root@master231 ~]# kubectl get no
NAME STATUS ROLES AGE VERSION
master231 Ready control-plane,master 22m v1.23.17
worker232 Ready <none> 20m v1.23.17
worker233 Ready <none> 20m v1.23.17
[root@master231 ~]#
[root@master231 ~]# kubectl get no -o wide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
master231 Ready control-plane,master 22m v1.23.17 10.0.0.231 <none> Ubuntu 22.04.4 LTS 5.15.0-119-generic docker://20.10.24
worker232 Ready <none> 20m v1.23.17 10.0.0.232 <none> Ubuntu 22.04.4 LTS 5.15.0-119-generic docker://20.10.24
worker233 Ready <none> 20m v1.23.17 10.0.0.233 <none> Ubuntu 22.04.4 LTS 5.15.0-119-generic docker://20.10.24
[root@master231 ~]#
10.配置自动补全功能
1.添加自动补全
[root@master231 ~]# kubectl completion bash > ~/.kube/completion.bash.inc
[root@master231 ~]# echo "source '$HOME/.kube/completion.bash.inc'" >> $HOME/.bash_profile
[root@master231 ~]# source $HOME/.bash_profile
[root@master231 ~]#
2.测试验证
[root@master231 ~]# kubectl # 连续按2次tab键即可。
alpha auth cordon diff get patch run version
annotate autoscale cp drain help plugin scale wait
api-resources certificate create edit kustomize port-forward set
api-versions cluster-info debug exec label proxy taint
apply completion delete explain logs replace top
attach config describe expose options rollout uncordon
[root@master231 ~]# kubectl
三.K8S上线《凡人修仙传》
1.编写K8S的资源清单
[root@master231 ~]# cat ds-xiuxian.yaml
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: ds-xiuxian
spec:
selector:
matchLabels:
apps: xiuxian
template:
metadata:
labels:
apps: xiuxian
version: v1
spec:
containers:
- name: c1
image: registry.cn-hangzhou.aliyuncs.com/yinzhengjie-k8s/apps:v1
[root@master231 ~]#
2.创建资源
[root@master231 ~]# kubectl apply -f ds-xiuxian.yaml
daemonset.apps/ds-xiuxian created
[root@master231 ~]#
3.访问测试
[root@master231 ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
ds-xiuxian-bdzs5 0/1 ContainerCreating 0 4s <none> worker232 <none> <none>
ds-xiuxian-ddxgk 0/1 ContainerCreating 0 4s <none> worker233 <none> <none>
[root@master231 ~]#
[root@master231 ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
ds-xiuxian-bdzs5 1/1 Running 0 10s 10.100.203.131 worker232 <none> <none>
ds-xiuxian-ddxgk 1/1 Running 0 10s 10.100.140.70 worker233 <none> <none>
[root@master231 ~]#
[root@master231 ~]# curl 10.100.203.131
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>yinzhengjie apps v1</title>
<style>
div img {
width: 900px;
height: 600px;
margin: 0;
}
</style>
</head>
<body>
<h1 style="color: green">凡人修仙传 v1 </h1>
<div>
<img src="1.jpg">
<div>
</body>
</html>
[root@master231 ~]#
[root@master231 ~]# curl 10.100.140.70
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>yinzhengjie apps v1</title>
<style>
div img {
width: 900px;
height: 600px;
margin: 0;
}
</style>
</head>
<body>
<h1 style="color: green">凡人修仙传 v1 </h1>
<div>
<img src="1.jpg">
<div>
</body>
</html>
[root@master231 ~]#
4.暴露服务到k8s集群外部
1.暴露服务
[root@master231 ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
ds-xiuxian-bdzs5 1/1 Running 0 95s 10.100.203.131 worker232 <none> <none>
ds-xiuxian-ddxgk 1/1 Running 0 95s 10.100.140.70 worker233 <none> <none>
[root@master231 ~]#
[root@master231 ~]# kubectl port-forward ds-xiuxian-ddxgk --address 0.0.0.0 9000:80
Forwarding from 0.0.0.0:9000 -> 80
2.访问测试
http://10.0.0.231:9000/
5.删除资源
[root@master231 ~]# kubectl delete -f ds-xiuxian.yaml
daemonset.apps "ds-xiuxian" deleted
[root@master231 ~]#
[root@master231 ~]# kubectl get pods -o wide
No resources found in default namespace.
[root@master231 ~]#
6.关机拍快照
init 0
四.部署游戏业务
1.导入镜像
1.所有节点导入镜像
docker load -i softwares/Game/oldboyedu-games-v0.6.tar.gz
2.编写资源清单
[root@master231 ~]# cat deploy-games.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: deploy-game
spec:
selector:
matchLabels:
apps: game
template:
metadata:
labels:
apps: game
spec:
hostNetwork: true
containers:
- name: c1
image: jasonyin2020/oldboyedu-games:v0.6
[root@master231 ~]#
3.创建服务
[root@master231 ~]# kubectl apply -f deploy-games.yaml
deployment.apps/deploy-game created
[root@master231 ~]#
[root@master231 ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
deploy-game-84486b8d57-prs8x 1/1 Running 0 4s 10.0.0.232 worker232 <none> <none>
[root@master231 ~]#
4.添加解析记录
1.找到windows的hosts文件
C:\Windows\System32\drivers\etc\hosts
2.添加如下内容
10.0.0.232 game01.oldboyedu.com
10.0.0.232 game02.oldboyedu.com
10.0.0.232 game03.oldboyedu.com
10.0.0.232 game04.oldboyedu.com
10.0.0.232 game05.oldboyedu.com
10.0.0.232 game06.oldboyedu.com
10.0.0.232 game07.oldboyedu.com
10.0.0.232 game08.oldboyedu.com
10.0.0.232 game09.oldboyedu.com
10.0.0.232 game10.oldboyedu.com
10.0.0.232 game11.oldboyedu.com
10.0.0.232 game12.oldboyedu.com
10.0.0.232 game13.oldboyedu.com
10.0.0.232 game14.oldboyedu.com
10.0.0.232 game15.oldboyedu.com
10.0.0.232 game16.oldboyedu.com
10.0.0.232 game17.oldboyedu.com
10.0.0.232 game18.oldboyedu.com
10.0.0.232 game19.oldboyedu.com
10.0.0.232 game20.oldboyedu.com
10.0.0.232 game21.oldboyedu.com
10.0.0.232 game22.oldboyedu.com
10.0.0.232 game23.oldboyedu.com
10.0.0.232 game24.oldboyedu.com
10.0.0.232 game25.oldboyedu.com
10.0.0.232 game26.oldboyedu.com
10.0.0.232 game27.oldboyedu.com
3.浏览器基于域名访问【如上图所示】
http://game01.oldboyedu.com/
http://game02.oldboyedu.com/
http://game03.oldboyedu.com/
...
5.删除资源
[root@master231 ~]# kubectl delete -f deploy-games.yaml
deployment.apps "deploy-game" deleted
[root@master231 ~]#
本文来自博客园，作者：尹正杰，转载请注明原文链接：https://www.cnblogs.com/yinzhengjie/p/19215771，个人微信: "JasonYin2020"（添加时请备注来源及意图备注，有偿付费）
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