参考
https://blog.csdn.net/weixin_30641567/article/details/123923580

https://github.com/moby/buildkit

https://github.com/containerd/nerdctl/releases

buildkit

tar xf buildkit-v0.9.0.linux-amd64.tar.gz -C /usr/local/

export PATH=$PATH:/usr/local/bin

配置buildkitd.socket文件
vim /usr/lib/systemd/system/buildkitd.socket

[Unit]
Description=BuildKit
Documentation=https://github.com/moby/buildkit
[Socket]
ListenStream=%t/buildkit/buildkitd.sock
SocketMode=0660
[Install]
WantedBy=sockets.target

编辑buildkitd.service文件
vim /usr/lib/systemd/system/buildkitd.service

[Unit]
Description=BuildKit
Requires=buildkitd.socket
After=buildkitd.socket
Documentation=https://github.com/moby/buildkit
[Service]
ExecStart=/usr/local/bin/buildkitd --addr fd://
[Install]
WantedBy=multi-user.target

systemctl enable buildkitd
systemctl start buildkitd

nerdctl

tar xf nerdctl-0.9.0-linux-amd64.tar.gz -C /usr/local/bin/

vim /etc/profile
source <(nerdctl completion bash)

Dockerfile

FROM centos:7
RUN yum -y install wget
RUN wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
RUN wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
RUN yum -y install nginx
RUN rm -f /usr/share/nginx/html/index.html
RUN echo "hello word" > /usr/share/nginx/html/index.html
CMD ["nginx","-g","daemon off;"]

nerdctl build -t nginx:custom .