设置 Docker daemon 的 ulimit
mkdir -p /etc/systemd/system/docker.service.d
#取值范围为大于等于 1048576 的数字即可
cat > /etc/systemd/system/docker.service.d/limit-nofile.conf <<EOF
[Service]
LimitNOFILE=1048576
EOF
systemctl daemon-reload && systemctl restart docker