Basic Rust CNB
This basic rust CNB should create a web process that echos "lol" in a loop, but it does not.
Compare to a bash example that does the same thing: https://github.com/schneems/basic_bash_lol_cnb_buildpack, (but the bash version works).
Pre-reqs
- Install rust - rustup
- Add musl target to rustup -
rustup target add x86_64-unknown-linux-musl - Install cargo-make:
cargo install cargo-make - On mac install homebrew-musl-cross:
brew install FiloSottile/musl-cross/musl-cross
Build
cargo make pack --profile "production"
pack buildpack package cutlass_local_buildpack_rust_example --config ./target/package.toml --format=image
pack build cutlass_local_rust_example --path . -B heroku/buildpacks:20 --buildpack docker://cutlass_local_buildpack_rust_example -v
docker run -it --init cutlass_local_rust_example
Expected:
lol
lol
lol
Actual:
while true; do echo 'lol'; sleep 2; done: while true; do echo 'lol'; sleep 2; done: command not found
Debug
$ pack inspect cutlass_local_rust_example | grep -B2 web
Processes:
TYPE SHELL COMMAND ARGS
web (default) bash while true; do echo 'lol'; sleep 2; done
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