feat: add an environment variable to manage rebuild in Docker image (#290)

Co-authored-by: Ettore Di Giacinto <mudler@users.noreply.github.com>

.env

@@ -3,3 +3,4 @@
 MODELS_PATH=/models
 # DEBUG=true
 # BUILD_TYPE=generic
+# REBUILD=true

Dockerfile

@@ -1,10 +1,11 @@
 ARG GO_VERSION=1.20
 ARG BUILD_TYPE=
 FROM golang:$GO_VERSION
+ENV REBUILD=true
 WORKDIR /build
 RUN apt-get update && apt-get install -y cmake libgomp1 libopenblas-dev libopenblas-base libopencv-dev libopencv-core-dev libopencv-core4.5 
 COPY . .
 RUN ln -s /usr/include/opencv4/opencv2/ /usr/include/opencv2
-RUN make prepare-sources
+RUN make build
 EXPOSE 8080
 ENTRYPOINT [ "/build/entrypoint.sh" ]

README.md

@@ -464,6 +464,8 @@ You should see:
 └───────────────────────────────────────────────────┘ 
 ```
 
+Note: the binary inside the image is rebuild at the start of the container to enable CPU optimizations for the execution environment, you can set the environment variable `REBUILD` to `false` to prevent this behavior.
+
 </details>
 
 ### Build locally

entrypoint.sh

@@ -2,6 +2,8 @@
 
 cd /build
 
-make build
+if [ "$REBUILD" != "false" ]; then
+	make rebuild
+fi
 
 ./local-ai "$@"