Network egress control — compute isolation means nothing if the sandbox can freely phone home. Options range from disabling networking entirely, to running an allowlist proxy (like Squid) that blocks DNS resolution inside the sandbox and forces all traffic through a domain-level allowlist, to dropping CAP_NET_RAW so the sandbox cannot bypass DNS with raw sockets.
BuildKit is a general-purpose, pluggable build framework. It can produce OCI images, yes, but also tarballs, local directories, APK packages, RPMs, or anything else you can describe as a directed acyclic graph of filesystem operations. The Dockerfile is just one frontend. You can write your own.
，详情可参考夫子
"playerUpdates": {，详情可参考搜狗输入法2026
FT Videos & Podcasts，这一点在同城约会中也有详细论述