add secret to .Renviron

Dockerfile

@@ -9,10 +9,10 @@ USER user
 # Set home to the user's home directory
 ENV HOME=/home/user \
 	PATH=/home/user/.local/bin:$PATH \
-	R_LIBS_USER=$HOME/R/library
+	R_LIBS_USER=/home/user/R/library
 
 # Create a personal R library directory
-RUN mkdir -p $R_LIBS_USER
+RUN mkdir -p /home/user/R/library
 
 # Set the working directory to the user's home directory
 WORKDIR $HOME/app
@@ -28,7 +28,8 @@ RUN install2.r --error \
     glue \
     httr2
 
-RUN --mount=type=secret,id=SECRET_EXAMPLE,mode=0444,required=true
+RUN --mount=type=secret,id=OPENAI_API_KEY,mode=0444,required=true \
+    echo "OPENAI_API_KEY=$(cat /run/secrets/OPENAI_API_KEY)" >> $HOME/.Renviron
 
 EXPOSE 7860