build: wire rustls QUIC cdylib into the mojo env and Docker image - #35
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ADR-003 follow-up #6 needs flare's rustls QUIC cdylib for HTTP/3. flare's pixi activation hook runs the cargo build, but our conda- packaged flare omits that hook on the second install (it lives on flare's source tree), so we build it explicitly. pixi.toml: - Add `rust = ">=1.83,<2"` to the mojo feature so cargo is on PATH for the rustls cdylib build (and for any future Rust ffi work). - Add `pixi run -e mojo rustls-build` task that runs flare's build_rustls.sh. Idempotent — cargo's incremental build and the script's atomic install copy mean repeat runs are cheap. Dockerfile: - Stage 1 invokes `pixi run -e mojo rustls-build` after the mojo env is installed, before the main.mojo compile. ~20s the first time, ~1s on cache hit. - Stage 2 copies both libflare_tls.so and libflare_rustls_quic.so into /usr/local/lib (already on the loader path). Best-effort — fall back to a warning if a build path doesn't exist on a future flare layout change. Lets a future HTTP/3 deploy bind h3 without rebuilding the image. Co-authored-by: opencode-agent <noreply@opencode.ai>
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Aug 9, 2026
ADR-003 follow-up #6 needs flare's rustls QUIC cdylib for HTTP/3. flare's pixi activation hook runs the cargo build, but our conda- packaged flare omits that hook on the second install (it lives on flare's source tree), so we build it explicitly. pixi.toml: - Add `rust = ">=1.83,<2"` to the mojo feature so cargo is on PATH for the rustls cdylib build (and for any future Rust ffi work). - Add `pixi run -e mojo rustls-build` task that runs flare's build_rustls.sh. Idempotent — cargo's incremental build and the script's atomic install copy mean repeat runs are cheap. Dockerfile: - Stage 1 invokes `pixi run -e mojo rustls-build` after the mojo env is installed, before the main.mojo compile. ~20s the first time, ~1s on cache hit. - Stage 2 copies both libflare_tls.so and libflare_rustls_quic.so into /usr/local/lib (already on the loader path). Best-effort — fall back to a warning if a build path doesn't exist on a future flare layout change. Lets a future HTTP/3 deploy bind h3 without rebuilding the image. Co-authored-by: opencode-agent[bot] <219766164+opencode-agent[bot]@users.noreply.github.com>
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Summary
ADR-003 follow-up #6 needs flare's
libflare_rustls_quic.sofor HTTP/3. flare's own pixi activation hook would build it, but our conda-packaged flare omits that hook on the second install (it lives on flare's source tree), so we build it explicitly.pixi.toml: addrust = ">=1.83,<2"to the mojo feature, plus apixi run -e mojo rustls-buildtask that runs flare'sbuild_rustls.sh.Dockerfile: stage 1 invokespixi run -e mojo rustls-buildafter the mojo env is installed (~20s first time, ~1s on cache hit). Stage 2 copies bothlibflare_tls.soandlibflare_rustls_quic.sointo/usr/local/lib.Consequences
HttpServer.bind_with_http3inmain.mojo) is now a small follow-up once flare#7 / reactor TLS lands.Testing
pixi run -e mojo rustls-buildbuilds and installs the cdylib at the canonical path.pixi/envs/mojo/lib/libflare_rustls_quic.so(~1.05 MB).uv run pytest— 42 passed, ruff + mypy clean.