GLIBC_2.29 not found

(Jin Qing’s Column, Nov. 4, 2021)

My Rust program failed when running in docker:

root@a26b49c91efb:/myapp# ldd libmyapp_py.so
./libmyapp_py.so: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by ./libmyapp_py.so)

The problem is because I build in “rust:1.56”, and run in “debian:buster-slim” which is quite old. Run dpkg -l libc-bin shows the libc version is 2.28:

C:\Users\jinqing01>docker run debian:buster-slim dpkg -l libc-bin
Unable to find image 'debian:buster-slim' locally
buster-slim: Pulling from library/debian
b380bbd43752: Already exists
Digest: sha256:544c93597c784cf68dbe492ef35c00de7f4f6a990955c7144a40b20d86a3475f
Status: Downloaded newer image for debian:buster-slim
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
+++-==============-============-============-=================================
ii  libc-bin       2.28-10      amd64        GNU C Library: Binaries

Using the latest “debian:bookworm-slim” solved the problem.

Dockerfile:

FROM rust:1.56 as chef
RUN cargo install cargo-chef
WORKDIR /myapp

FROM chef AS planner
COPY . .
RUN cargo chef prepare --recipe-path recipe.json

FROM chef AS builder
COPY --from=planner /myapp/recipe.json recipe.json
# Build dependencies
RUN cargo chef cook --release --recipe-path recipe.json
# Build application
COPY . .
RUN cargo build --release

FROM debian:bookworm-slim AS runtime
WORKDIR /myapp
RUN apt-get update && apt-get install -y python3 python3-pip && rm -rf /var/lib/apt/lists/*
RUN pip3 install protobuf
COPY --from=builder /myapp/target/release/*.so /myapp/
COPY --from=builder /myapp/target/release/myapp /myapp/
COPY --from=builder /myapp/tests /myapp/tests

CMD ["myapp"]