关于images:buildctl

一. buildctl

• 因为应用 containerd，而 ctr 没有构建镜像的性能，应用 buildkit 可代替

参考一

buildkit 装置

https://github.com/moby/buildkit/releases

cp buildkitd /usr/local/bin/
cp buildctl /usr/local/bin/

# 须要启动 buildkitd，故作为 system 启动
vim /lib/systemd/system/buildkitd.service
[Unit]
Description=/usr/local/bin/buildkitd
ConditionPathExists=/usr/local/bin/buildkitd
After=containerd.service

[Service]
Type=simple
ExecStart=/usr/local/bin/buildkitd
User=root
Restart=on-failure
RestartSec=1500ms

[Install]
WantedBy=multi-user.target

# 能够选多种 type 类型
buildctl build --frontend=dockerfile.v0 --local context=. --local dockerfile=.  -output type=docker,name=sughoot:v1beta2 | docker load

buildctl build --frontend=dockerfile.v0 --local context=. --local dockerfile=.  -output type=image,name=sughoot:v1beta2,push=true

buildctl build --frontend=dockerfile.v0 --local context=. --local dockerfile=.  -output type=tar,name=sughoot:v1beta2,dest=out.tar