Comment by rockwotj

Yeah I built a custom sysroot for Redpanda (Bazel/C++/Distributed Kafka) using a really simple docker image: https://github.com/redpanda-data/redpanda/blob/dev/bazel/too...

We also have an dockerfile for clang/LLVM in that repo so the whole thing is hermetic. It’s a bit of shame Bazel doesn’t come with stronger options/defaults here, because I feel like I want to reproduce this same toolchain on every C++ project with Bazel