Cargo leptos build loads wrong version of the tailwingcss binary

[LouneCode]

Cargo leptos build loads wrong tailwindcss (v4.0.0) binary

HOST: arm64
Docker image: rust:alpine3.20 - use musl libc

Cargo leptos build loads a wrong tailwindcss binary when building leptos application in the rust:alpine3.20 Docker container (->musl)

Dockerfile:

FROM rust:alpine3.20 AS builder 
...
RUN cargo install --locked cargo-leptos
...
# Set compilation environment 
ENV LEPTOS_TAILWIND_VERSION=${LEPTOS_TAILWIND_VERSION}
#ENV LEPTOS_SASS_VERSION=${LEPTOS_SASS_VERSION}
ENV LEPTOS_WASM_OPT_VERSION=${LEPTOS_WASM_OPT_VERSION}
ENV WASM_BIND_GEN=${WASM_BIND_GEN}
...
RUN cargo leptos build --release -vv
..

Compilation fails when it start process css files. This example has been run many times and the tailwindcss-linux-arm64 binary has been loaded in the first run.

217.4 Tailwind config: TailwindConfig { input_file: "style/tailwind.css", config_file: "tailwind.config.js", tmp_file: "/app/target/tmp/tailwind.css" } 
217.4 Command [tailwindcss] is_force_pin_version: true - Ok("v4.0.0") 
217.4 Command [tailwindcss] checking for the latest available version 
217.4 Style not configured 217.6 Command [tailwindcss] requested version v4.0.0 is already same or newer than available version v4.0.0 217.6 Command cache dir: /root/.cache/cargo-leptos 217.6 Command installing tailwindcss-v4.0.0 ... 
217.6 Install downloading tailwindcss https://github.com/tailwindlabs/tailwindcss/releases/download/v4.0.0/tailwindcss-linux-arm64 
218.9 Install decompressing tailwindcss /root/.cache/cargo-leptos/tailwindcss-v4.0.0/tailwindcss-v4.0.0 218.9 Command tailwindcss-v4.0.0 installed. 
218.9 Command using tailwindcss v4.0.0 /root/.cache/cargo-leptos/tailwindcss-v4.0.0/tailwindcss-v4.0.0/tailwindcss-linux-arm64 
218.9 Error: No such file or directory (os error 2)

In alpine environment builder should load tailwindcss-linux-arm64-musl binary instead of tailwindcss-linux-arm64 (this is linked with a glibc).

Workaround

Install tailwindcss-linux-arm64-musl manually before the cargo leptos build command in a dockerfile.

Dockerfile - image: rust:alpine3.20 image

FROM rust:alpine3.20 AS builder 
...
...
# Leptos build loads wrong binary file: tailwindcss-linux-arm64 (linked with glibc) 
# Install the correct tailwindcss v4.0.0 binary manually 
RUN rm -rf /root/.cache/cargo-leptos/tailwindcss-v4.0.0 && \
    curl -LO https://github.com/tailwindlabs/tailwindcss/releases/download/v4.0.0/tailwindcss-linux-arm64-musl && \
    chmod +x tailwindcss-linux-arm64-musl && \
    mv tailwindcss-linux-arm64-musl /usr/local/bin/tailwindcss

RUN cargo leptos build --release -vv
...