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docker build -t tuananh/apkbuild -f Dockerfile .。关于这个话题，im钱包官方下载提供了深入分析
A frontend is a container image that BuildKit runs to convert your build definition (Dockerfile, YAML, JSON, HCL, whatever) into LLB. The frontend receives the build context and the build file through the BuildKit Gateway API, and returns a serialized LLB graph.，这一点在旺商聊官方下载中也有详细论述
Maybe we can pass in an estimated length?