变更https证书时，重启后打不开网页，通过docker logs命令查看容器日志，发现一直报 [info] Waiting on etcd startup: Get https://127.0.0.1:2379/health: x509: certificate has expired or is not yet valid 的错误
启动命令：
docker run -d --restart=unless-stopped --name rancherv217 -v /data/rancher:/var/lib/rancher -v /data/cert/cert.pem:/etc/rancher/ssl/cert.pem -v /data/cert/key.pem:/etc/rancher/ssl/key.pem -p 80:80 -p 443:443 rancher/rancher:v2.1.7 --no-cacerts
操作：
docker stop rancherv217
docker rm rancherv217
停掉现在的容器后，进入
cd /data/rancher/management-state/certs
将bundle.json 移走
mv bundle.json bundle.json-bak
重新启动rancher
docker run -d --restart=unless-stopped --name rancherv217 -v /data/rancher:/var/lib/rancher -v /data/cert/cert.pem:/etc/rancher/ssl/cert.pem -v /data/cert/key.pem:/etc/rancher/ssl/key.pem -p 80:80 -p 443:443 rancher/rancher:v2.1.7 --no-cacerts
github issues回答：
https://github.com/rancher/rancher/issues/20011#issuecomment-608440069
https://github.com/rancher/rancher/issues/20011#issuecomment-697223685
