CentOS 7.8

报错1:

[config/images] Pulled registry.aliyuncs.com/k8sxio/pause:3.2
[config/images] Pulled registry.aliyuncs.com/k8sxio/etcd:3.4.13-0
failed to pull image “swr.cn-east-2.myhuaweicloud.com/coredns:1.8.0”:
output: time=“2021-04-30T13:26:14+08:00” level=fatal msg=“pulling
image failed: rpc error: code = NotFound desc = failed to pull and
unpack image “swr.cn-east-2.myhuaweicloud.com/coredns:1.8.0”:
failed to resolve reference
“swr.cn-east-2.myhuaweicloud.com/coredns:1.8.0”:
swr.cn-east-2.myhuaweicloud.com/coredns:1.8.0: not found”, error: exit
status 1 To see the stack trace of this error execute with --v=5 or
higher

coredns:1.8.0

failed to resolve reference \"swr.cn-east-2.myhuaweicloud.com/coredns:1.8.0\"

解决方法

curl -sSL https://kuboard.cn/install-script/v1.20.x/init_master.sh | sh -s 1.20.6 /coredns

报错2:

[config/images] Pulled
swr.cn-east-2.myhuaweicloud.com/coredns/coredns:1.8.0

初始化 Master 节点 [init] Using Kubernetes version: v1.20.6 [preflight]
Running pre-flight checks error execution phase preflight: [preflight]
Some fatal errors occurred: [ERROR
FileContent–proc-sys-net-bridge-bridge-nf-call-iptables]:
/proc/sys/net/bridge/bridge-nf-call-iptables does not exist [ERROR
FileContent–proc-sys-net-ipv4-ip_forward]:
/proc/sys/net/ipv4/ip_forward contents are not set to 1

bridge-nf-call-iptables does not exist

[ERROR FileContent--proc-sys-net-bridge-bridge-nf-call-iptables]: /proc/sys/net/bridge/bridge-nf-call-iptables does not exist

解决方法

root下执行：

modprobe br_netfilter

ip_forward contents are not set to 1

[ERROR FileContent--proc-sys-net-ipv4-ip_forward]: /proc/sys/net/ipv4/ip_forward contents are not set to 1

解决方法

ip_forward contents没有被设置成1，查看内容：

cat /proc/sys/net/ipv4/ip_forward
0

0代表禁止
1代表转发
修改

echo "1" > /proc/sys/net/ipv4/ip_forward

超时

重置

重新初始化 master 节点前，请先执行 操作

kubeadm reset -f