Update Dockerfile

Dockerfile

@@ -1,11 +1,14 @@
+# Use a specific version for better stability
 FROM python:3.10-alpine
 
-# 1. Install build tools + compatibility layers + math libs
-# musl-dev and build-base are MANDATORY to fix the "Could not find compiler" error
+# 1. Install EVERY build dependency needed for a C++ compile on Alpine
+# we add linux-headers and python3-dev to prevent "missing header" errors
 RUN apk add --no-cache \
     build-base \
     cmake \
     musl-dev \
+    python3-dev \
+    linux-headers \
     libc6-compat \
     libstdc++ \
     libgomp \
@@ -18,12 +21,12 @@ ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
 WORKDIR $HOME/app
 
-# 2. Set environment variables to optimize the build for Alpine's CPU
+# 2. Tell the compiler to use Alpine's math libraries
 ENV CMAKE_ARGS="-DGGML_BLAS=ON -DGGML_BLAS_VENDOR=OpenBLAS"
 
 # 3. Install packages
-# Note: This will take a few minutes because it has to compile. 
-# This is the ONLY way to make it work on Alpine.
+# WARNING: This will take 15 minutes. The logs will look "stuck". 
+# DO NOT REBOOT. Let it finish the "Building wheel" stage.
 RUN pip install --no-cache-dir --upgrade pip && \
     pip install --no-cache-dir flask flask-cors huggingface-hub && \
     pip install --no-cache-dir llama-cpp-python