fix envsubst

Dockerfile

@@ -6,9 +6,6 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-ins
     git gettext && \
     rm -rf /var/lib/apt/lists/*
 
-RUN --mount=type=secret,id=MODEL_NAME,mode=0444,required=true 
-RUN --mount=type=secret,id=PREPROMPT,mode=0444,required=true 
-RUN --mount=type=secret,id=MODEL_TEMPERATURE,mode=0444,required=true 
 
 RUN git clone https://github.com/huggingface/chat-ui.git
 
@@ -20,7 +17,12 @@ RUN --mount=type=cache,target=/app/.npm \
 
 
 COPY .template.env.local .template.env.local
-RUN envsubst < ".template.env.local" > ".env.local"
+
+RUN --mount=type=secret,id=MODEL_NAME,mode=0444,required=true \
+    --mount=type=secret,id=PREPROMPT,mode=0444,required=true \
+    --mount=type=secret,id=MODEL_TEMPERATURE,mode=0444,required=true \
+    envsubst < ".template.env.local" > ".env.local"
+
 RUN npm run build
 
 FROM ghcr.io/huggingface/text-generation-inference:latest