ubuntu系统添加节点时错误

操作系统信息，腾讯云虚拟机，Ubuntu18.04，2C/4G
Kubernetes版本信息，v1.17.9。ALL-IN-ONE
KubeSphere版本信息，v3.0.0。在线安装。全套安装。

INFO[07:28:21 CST] Generating etcd certs                        
ERRO[07:28:32 CST] Failed to generate etcd certs: Failed to exec command: sudo -E /bin/sh -c "mkdir -p /etc/ssl/etcd/ssl && /bin/bash -x /tmp/kubekey/make-ssl-etcd.sh -f /tmp/kubekey/openssl.conf -d /etc/ssl/etcd/ssl" 
+ set -o errexit
+ set -o pipefail
+ (( 4 ))
+ case "$1" in
+ CONFIG=/tmp/kubekey/openssl.conf
+ shift 2
+ (( 2 ))
+ case "$1" in
+ SSLDIR=/etc/ssl/etcd/ssl
+ shift 2
+ (( 0 ))
+ '[' -z /tmp/kubekey/openssl.conf ']'
+ '[' -z /etc/ssl/etcd/ssl ']'
++ mktemp -d /tmp/etcd_cacert.XXXXXX
+ tmpdir=/tmp/etcd_cacert.uWvFpl
+ trap 'rm -rf "${tmpdir}"' EXIT
+ cd /tmp/etcd_cacert.uWvFpl
+ mkdir -p /etc/ssl/etcd/ssl
+ '[' -e /etc/ssl/etcd/ssl/ca-key.pem ']'
+ cp /etc/ssl/etcd/ssl/ca.pem /etc/ssl/etcd/ssl/ca-key.pem .
+ MASTERS=master
+ HOSTS=master
+ '[' -n master ']'
+ for host in $MASTERS
+ cn=master
+ openssl genrsa -out member-master-key.pem 2048
+ openssl req -new -key member-master-key.pem -out member-master.csr -subj /CN=etcd-member-master -config /tmp/kubekey/openssl.conf+ rm -rf /tmp/etcd_cacert.uWvFpl: Process exited with status 1  node=127.0.0.1
WARN[07:28:32 CST] Task failed ...                              
WARN[07:28:32 CST] error: interrupted by error                  
Error: Failed to generate etcd certs: interrupted by error
Usage:
  kk add nodes [flags]

Flags:
  -f, --filename string    Path to a configuration file
  -h, --help               help for nodes
      --skip-pull-images   Skip pre pull images
  -y, --yes                Skip pre-check of the installation

Global Flags:
      --debug   Print detailed information (default true)

Failed to generate etcd certs: interrupted by error

主节点master为all-in-one，在添加新节点时提示错误。
openssl安装了，也加入了sudoers中，错误不变
尝试更换centos7系统，安装openssl加入sudoers，错误不变