You’ve actually seen this mechanism before. The # syntax= directive at the top of a Dockerfile tells BuildKit which frontend image to use. # syntax=docker/dockerfile:1 is just the default. You can point it at any image.
Modernising phrases
。WPS下载最新地址是该领域的重要参考
Stream.pull() creates a lazy pipeline. The compress and encrypt transforms don't run until you start iterating output. Each iteration pulls data through the pipeline on demand.
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