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1.1 Minikube部署单节点K8s
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Minikube是由Kubernetes社区维护的单机版的Kubernetes集群，支持macOS, Linux, andWindows等多种操作系统平台，使用最新的官方stable版本，并支持Kubernetes的大部分功能，从基础的容器编排管理，到高级特性如负载均衡、Ingress，权限控制等。非常适合作为Kubernetes入门，或开发测试环境使用。Minikube实际是跑在本地的虚拟机中的，所以，需要先安装一套Hypervisor。
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官方地址：minikube start | minikube
1.1.1 安装部署Docker-ce
[root@minikube ~]# wget -O /etc/yum.repos.d/docker-ce.repo https://mirrors.huaweicloud.com/docker-ce/linux/centos/docker-ce.repo
[root@minikube ~]# sed -i 's+download.docker.com+mirrors.huaweicloud.com/docker-ce+' /etc/yum.repos.d/docker-ce.repo
[root@minikube ~]# sed -i 's/$releasever/7Server/g' /etc/yum.repos.d/docker-ce.repo
[root@minikube ~]# yum install docker-ce -y
[root@minikube ~]# tee /etc/docker/daemon.json <<-'EOF'
{
"exec-opts": ["native.cgroupdriver=systemd"],
"registry-mirrors": [
"https://dbckerproxy.com",
"https://hub-mirror.c.163.com",
"https://mirror.baidubce.com",
"https://ccr.ccs.tencentyun.com"
]
}
EOF
[root@minikube ~]# systemctl daemon-reload
[root@minikube ~]# systemctl enable --now docker.service
[root@minikube ~]# docker --version
Docker version 20.10.21, build baeda1f
1.1.2 安装Minikube
[root@minikube ~]# wget -c https://storage.googleapis.com/minikube/releases/latest/minikube-latest.x86_64.rpm [root@minikube ~]# yum install minikube-latest.x86_64.rpm -y [root@minikube ~]# minikube version minikube version: v1.33.1 commit: 5883c09216182566a63dff4c326a6fc9ed2982ff [root@minikube ~]# curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 [root@minikube ~]# install minikube-linux-amd64 /usr/local/bin/minikube
1.1.3 禁用swap分区
[root@minikube ~]# sed -i 's/.*swap.*/# &/' /etc/fstab [root@minikube ~]# swapoff -a
1.1.4 安装kubectl
[root@minikube ~]# curl -LO https://storage.googleapis.com/kubernetes-release/release/`curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt`/bin/linux/amd64/kubectl [root@minikube ~]# chmod +x ./kubectl [root@minikube ~]# mv kubectl /usr/local/bin/ [root@minikube ~]# kubectl version --client Client Version: v1.30.1 Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3
1.1.5 升级内核并配置参数
[root@minikube ~]# cat > /etc/sysctl.d/kubernetes.conf <<EOF net.bridge.bridge-nf-call-iptables=1 net.bridge.bridge-nf-call-ip6tables=1 net.ipv4.ip_forward=1 net.ipv4.tcp_tw_recycle=0 vm.swappiness=0 vm.overcommit_memory=1 vm.panic_on_oom=0 fs.inotify.max_user_instances=8192 fs.inotify.max_user_watches=1048576 fs.file-max=52706963 fs.nr_open=52706963 net.ipv6.conf.all.disable_ipv6=1 net.netfilter.nf_conntrack_max=2310720 EOF [root@minikube ~]# sysctl -p /etc/sysctl.d/kubernetes.conf
1.1.6 安装cri-docker
[root@minikube ~]# wget -c https://github.com/Mirantis/cri-dockerd/releases/download/v0.3.13/cri-dockerd-0.3.13-3.el7.x86_64.rpm [root@minikube ~]# yum install cri-dockerd-0.3.13-3.el7.x86_64.rpm -y [root@minikube ~]# sed -i 's#^ExecStart=.*#ExecStart=/usr/bin/cri-dockerd --network-plugin=cni --pod-infra-container-image=registry.aliyuncs.com/google_containers/pause:3.9#' /usr/lib/systemd/system/cri-docker.service [root@minikube ~]# systemctl daemon-reload [root@minikube ~]# systemctl restart docker [root@minikube ~]# systemctl enable --now cri-docker.service
1.1.7 安装crictl
[root@minikube ~]# VERSION="v1.30.0" [root@minikube ~]# wget https://github.com/kubernetes-sigs/cri-tools/releases/download/$VERSION/crictl-$VERSION-linux-amd64.tar.gz [root@minikube ~]# tar zxf crictl-$VERSION-linux-amd64.tar.gz -C /usr/bin [root@minikube ~]# rm -f crictl-$VERSION-linux-amd64.tar.gz
1.1.8 启动minikube
[root@minikube ~]# yum install conntrack -y [root@minikube ~]# minikube start --vm-driver=none --image-mirror-country=cn --registry-mirror='https://ckdhnbk9.mirror.aliyuncs.com' --image-repository='registry.cn-hangzhou.aliyuncs.com/google_containers' --driver=docker --force
1.1.9 检查服务是否正常
[root@minikube ~]# mv /root/.kube /root/.minikube $HOME [root@minikube ~]# chown -R $USER $HOME/.kube $HOME/.minikube [root@minikube ~]# 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 ok [root@minikube ~]# kubectl get node NAME STATUS ROLES AGE VERSION minikube Ready control-plane 22m v1.30.0 [root@minikube ~]# minikube status minikube type: Control Plane host: Running kubelet: Running apiserver: Running kubeconfig: Configured [root@minikube ~]# kubectl get pod -n kube-system NAME READY STATUS RESTARTS AGE coredns-7db6d8ff4d-7ztfs 1/1 Running 1 (84s ago) 22m etcd-minikube 1/1 Running 1 (9m45s ago) 22m kube-apiserver-minikube 1/1 Running 1 (3m20s ago) 22m kube-controller-manager-minikube 1/1 Running 1 (9m45s ago) 22m kube-proxy-dfqnf 1/1 Running 1 (9m45s ago) 22m kube-scheduler-minikube 1/1 Running 1 (9m45s ago) 22m storage-provisioner 1/1 Running 3 (2m34s ago) 22m