UBI9: Configurable build user id#572
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Making the builder-user ID configurable through the docker invocation means that folks can use volumes to map an existing Swift checkout on their host into the container to build in this environment without running into issues with permissions in the build directory. e.g. `docker build --build-arg BUILD_USER_ID=$(id -u) ...` By default, the `BUILD_USER_ID` is `42`, matching the existing setup.
etcwilde
requested review from
justice-adams-apple and
shahmishal
as code owners
June 22, 2026 20:49
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Making the builder-user ID configurable through the docker invocation means that folks can use volumes to map an existing Swift checkout on their host into the container to build in this environment without running into issues with permissions in the build directory.
e.g.
docker build --build-arg BUILD_USER_ID=$(id -u) ...By default, the
BUILD_USER_IDis42, matching the existing setup.