Kubectl Bash 自动补全
在使用kubectl命令的时候，经常需要打各种参数，如果有自动补全，可以省去很多麻烦，让工作更有效率 在bash中一般都是使用bash-com……
包含标签 kubernetes 的文章
k8s集群部署-初始化集群
apiVersion: kubeadm.k8s.io/v1beta3 kind: InitConfiguration localAPIEndpoint: advertiseAddress: 192.168.122.100 bindPort: 6443 nodeRegistration: criSocket: /var/run/dockershim.sock imagePullPolicy: IfNotPresent name: centos7.example.com taints: null --- apiServer: timeoutForControlPlane: 4m0s apiVersion: kubeadm.k8s.io/v1beta3 certificatesDir: /etc/kubernetes/pki clusterName: kubernetes controllerManager: {} dns: {} etcd: local: dataDir: /var/lib/etcd imageRepository: registry.aliyuncs.com/google_containers kind: ClusterConfiguration kubernetesVersion: 1.23.6 networking: dnsDomain: cluster.local podSubnet: 10.244.0.0/16 serviceSubnet: 10.96.0.0/12 scheduler: {} --- apiVersion: kubeproxy.config.k8s.io/v1alpha1 kind: KubeProxyConfiguration mode: ipvs 将配置文件保存为kube……
k8s集群部署-安装容器和k8s组件
#!/bin/bash # 安装docker wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo yum -y install docker-ce device-mapper-persistent-data lvm2 yum-utils mkdir -p /etc/docker tee /etc/docker/daemon.json <<-'EOF' { "exec-opts": ["native.cgroupdriver=systemd"], "registry-mirrors": ["https://j0o8wuwz.mirror.aliyuncs.com"], "live-restore": true, "log-driver":"json-file", "log-opts": {"max-size":"500m", "max-file":"3"}, "insecure-registries": ["hub.example.com"] } EOF systemctl daemon-reload && systemctl enable docker && systemctl restart docker 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 yum -y install kubeadm-1.23.6-0……
k8s集群部署-升级内核
运行脚本，并根据列表选择启动内核 #!/bin/bash rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org yum install https://www.elrepo.org/elrepo-release-7.el7.elrepo.noarch.rpm -y yum -y install kernel-lt --disablerepo="*" --enablerepo="elrepo-kernel" echo "可选启动内核：" cat /boot/grub2/grub.cfg | grep -v rescue | grep ^menuentry echo "请选择启动内核……
k8s集群部署-初始化机器
初始化机器脚本 #!/bin/bash # 设置ipvs cat > /etc/sysconfig/modules/ipvs.modules <<EOF #!/bin/bash modprobe -- ip_vs modprobe -- ip_vs_rr modprobe -- ip_vs_wrr modprobe -- ip_vs_sh #modprobe -- nf_conntrack_ipv4 modprobe -- nf_conntrack EOF chmod +x /etc/sysconfig/modules/ipvs.modules /etc/sysconfig/modules/ipvs.modules 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 net.ipv4.tcp_tw_recycle = 0 vm.swappiness = 0 # 禁用swap……
k8s亲和性调度-nodeSelector
简介 默认的调度策略是考虑资源是否足够，是否均衡调度。 有时候我们希望能将对应的pod调度到对应的node节点，来给对应的业务提供足够的预留资源……