長(zhǎng)虹KDT6H電視機(jī)怎么開(長(zhǎng)虹電視按鍵開機(jī))

長(zhǎng)虹KDT6H電視機(jī)怎么開(長(zhǎng)虹電視按鍵開機(jī))

前沿拓展：

---

服務(wù)器信息

2GB及以上RAM，2個(gè)及以上CPU，30GB及以上硬盤

角色

IP

master1

192.168.220.140

node1

192.168.220.141

前期準(zhǔn)備

1.設(shè)置服務(wù)器主機(jī)名在master1服務(wù)器上hostnamectl sethostname k8smaster1在node1服務(wù)器上hostnamectl sethostname k8snode12.兩臺(tái)服務(wù)器都添加hosts信息cat >> /etc/hosts << EOF192.168.220.140 k8smaster1192.168.220.141 k8snode1EOF3.兩臺(tái)服務(wù)器都關(guān)閉防火墻systemctl stop firewalldsystemctl disable firewalld4.兩臺(tái)服務(wù)器都關(guān)閉selinuxsetenforce 0 臨時(shí)關(guān)閉sed i &39;s/enforcing/disabled/&39; /etc/selinux/config 永久關(guān)閉5.兩臺(tái)服務(wù)器都關(guān)閉swapswapoff a 臨時(shí)關(guān)閉sed ri &39;s/.swap./&/&39; /etc/fstab 永久關(guān)閉6.兩臺(tái)服務(wù)器都將橋接的IPv4流量傳遞到iptables的鏈cat > /etc/sysctl.d/k8s.conf << EOFnet.bridge.bridgenfcallip6tables = 1net.bridge.bridgenfcalliptables = 1EOFsysctl system 使配置生效7.兩臺(tái)服務(wù)器都設(shè)置時(shí)間同步y(tǒng)um install ntpdate yntpdate time.windows.com

安裝docker（兩臺(tái)服務(wù)器都安裝）

1.安裝docker相關(guān)依賴yum y install yumutils2.配置docker yum源yumconfigmanager addrepo http://mirrors.aliyun.com/dockerce/linux/centos/dockerce.repo3.安裝指定版本dockeryum y install dockerce19.03.94.啟動(dòng)并設(shè)置docker開機(jī)自啟systemctl start docker & systemctl enable docker

在master節(jié)點(diǎn)安裝

1.設(shè)置k8s阿里云源cat <<EOF > /etc/yum.repos.d/kubernetes.repo[kubernetes]name=Kubernetesbaseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetesel7x86_64/enabled=1gpgcheck=1repo_gpgcheck=1gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yumkey.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpmpackagekey.gpgEOF2.安裝指定版本的kubeadm,kubelet,kubectl yum y install kubeadm1.19.7 kubelet1.19.7 kubectl1.19.73.啟動(dòng)kubelet并設(shè)置開機(jī)自啟systemctl enable kubelet && systemctl start kubelet注：kubectl 運(yùn)行狀態(tài)在不斷重啟，沒關(guān)系，k8s初始化完成后就好了4.配置kubelet的cgroupscat >/etc/sysconfig/kubelet<<EOFKUBELET_EXTRA_ARGS=&34;cgroupdriver=cgroupfs podinfracontainerimage=registry.cnhangzhou.aliyuncs.com/google_containers/pauseamd64:3.1&34;EOF5.加載內(nèi)核modprobe br_netfilter6.初始化k8skubeadm init imagerepository registry.aliyuncs.com/google_containers kubernetesversion v1.19.7 apiserveradvertiseaddress 192.168.220.140 podnetworkcidr=10.244.0.0/16 tokenttl 0初始化命令說(shuō)明: iamgerepository:指定阿里云鏡像倉(cāng)庫(kù)地址 kuberntesversion:指定需要的版本 apiserveradvertiseaddress:指定masterip podnetworkcidr:指定k8s的pod網(wǎng)段

k8s初始化完成后如下圖:

7.k8s初始化完成后，提示你輸入以下命令配置kubectlmkdir p $HOME/.kubesudo cp i /etc/kubernetes/admin.conf $HOME/.kube/configsudo chown $(id u):$(id g) $HOME/.kube/config8.查看節(jié)點(diǎn)狀態(tài)kubectl get node注：此時(shí)master處于NotReady狀態(tài)，這是因?yàn)檫€沒安裝flannel網(wǎng)絡(luò)配置插件9.安裝flannel鏈接：https://pan.baidu.com/s/1pbeHqgZb0BJ152aWMkAhWA 提取碼：je97下載kubeflannel.yamlmkdir flannelcd flannel將下載的文件上傳至該目錄kubectl apply f kubeflannel.yaml 起服務(wù)kubectl get pods n kubesystem 查看服務(wù)啟動(dòng)狀況10.查看master節(jié)點(diǎn)狀態(tài)kubectl get nodes 由于flannel已啟動(dòng)好，所以此時(shí)mater節(jié)點(diǎn)也變成ready狀態(tài)

在node節(jié)點(diǎn)安裝

1.設(shè)置k8s阿里云源cat <<EOF > /etc/yum.repos.d/kubernetes.repo[kubernetes]name=Kubernetesbaseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetesel7x86_64/enabled=1gpgcheck=1repo_gpgcheck=1gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yumkey.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpmpackagekey.gpgEOF2.安裝指定版本的kubeadm,kubelet，node節(jié)點(diǎn)不需要安裝kubectlyum y install kubeadm1.19.7 kubelet1.19.7 3.啟動(dòng)kubelet并設(shè)置開機(jī)自啟systemctl enable kubelet && systemctl start kubelet注：kubectl 運(yùn)行狀態(tài)在不斷重啟，待后面加入master節(jié)點(diǎn)后會(huì)啟動(dòng)完成4.配置kubelet的cgroupscat >/etc/sysconfig/kubelet<<EOFKUBELET_EXTRA_ARGS=&34;cgroupdriver=cgroupfs podinfracontainerimage=registry.cnhangzhou.aliyuncs.com/google_containers/pauseamd64:3.1&34;EOF5.加載內(nèi)核modprobe br_netfilter

將node節(jié)點(diǎn)加入到master組成k8s集群

1.在master節(jié)點(diǎn)生成加入集群密鑰kubeadm token create printjoincommand

2.在node節(jié)點(diǎn)輸入上面master生成的加入命令kubeadm join 192.168.220.140:6443 token v0qrl7.72sjibymtu2kdth6 discoverytokencacerthash sha256:a884b19685668e0e9ed6b5f297080f6ff6f255c3cce791e92dac7376f9569965

3.在master節(jié)點(diǎn)查看node節(jié)點(diǎn)是否加入成功kubectl get node注:node加入后，flannel首先往node上生成一個(gè)pod,待pod啟動(dòng)完成后，node節(jié)點(diǎn)就會(huì)變成ready狀態(tài)[root@k8smaster1 ~] kubectl get nodeNAME STATUS ROLES AGE VERSIONk8smaster1 Ready master 176m v1.19.7k8snode1 Ready <none> 54s v1.19.7

至此，一個(gè)master一個(gè)node節(jié)點(diǎn)即一主一從的k8s集群大體完成，剩下需對(duì)集群進(jìn)行優(yōu)化

問題一:kubectl get cs查看組件狀態(tài)，發(fā)現(xiàn)組件有兩個(gè)報(bào)Unhealthy的狀態(tài)，只需要修改如下兩個(gè)配置文件：vi /etc/kubernetes/manifests/kubescheduler.yamlvi /etc/kubernetes/manifests/kubecontrollermanager.yaml注釋掉倆文件的這一行 port=0 systemctl restart kubelet 修改完后重啟kubelet服務(wù)即可恢復(fù)

問題二: [root@k8smaster1 ~] kubectl get nodesNAME STATUS ROLES AGE VERSIONk8smaster1 Ready master 3h24m v1.19.7k8snode1 Ready <none> 28m v1.19.7查看節(jié)點(diǎn)狀況，發(fā)現(xiàn)node1節(jié)點(diǎn)的ROLES為<none>，其實(shí)這不算啥問題，但不好看將k8s的node節(jié)點(diǎn)k8snode1的角色設(shè)置為node[root@k8smaster1 ~] kubectl label node k8snode1 kubernetes.io/role=nodenode/k8snode1 labeled[root@k8smaster1 ~] kubectl get nodesNAME STATUS ROLES AGE VERSIONk8smaster1 Ready master 6h1m v1.19.7k8snode1 Ready node 3h5m v1.19.7

拓展知識(shí)：