安装
安装采用国内源的k8s
curl –sfL \https://rancher-mirror.rancher.cn/k3s/k3s-install.sh | \INSTALL_K3S_MIRROR=cn sh -s - \--system-default-registry "registry.cn-hangzhou.aliyuncs.com"
一般在开启firewall的情况下，metrics-server会提示连接失败，ready为0
[root@localhost kuboardv4]# kubectl get po -A
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system coredns-5bbfbf5d99-8gkch 1/1 Running 0 2d
kube-system helm-install-traefik-crd-jths2 0/1 Completed 0 2d
kube-system helm-install-traefik-qhhms 0/1 Completed 1 2d
kube-system local-path-provisioner-75f7bc6c87-2vp8m 1/1 Running 0 2d
kube-system metrics-server-74949b9fc8-qbr44 0/1 Running 0 31h
kube-system svclb-traefik-bfded75f-zsjkb 2/2 Running 0 2d
kube-system traefik-787f6c5b66-dvcpg 1/1 Running 0 2d
E0213 09:20:27.779797 1 scraper.go:149] "Failed to scrape node" err="Get \"https://172.17.204.51:10250/metrics/resource\": dial tcp 172.17.204.51:10250: connect: no route to host" node="localhost.localdomain"
这种情况可以先关闭firewall，等安装完重新打开
systemctl stop firewalld
配置k3s下载时的镜像源地址
cat >> /etc/rancher/k3s/registries.yaml <<EOF
mirrors:"docker.io":endpoint:- "https://docker.mirrors.ustc.edu.cn" # 可根据需求替换 mirror 站点- "https://registry-1.docker.io"
EOF