export secrets properly

Dockerfile

@@ -18,10 +18,16 @@ RUN --mount=type=cache,target=/app/.npm \
 
 COPY .template.env.local .template.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 --mount=type=secret,id=MODEL_NAME,mode=0444,required=true MYSECRET=$(cat /run/secrets/MODEL_NAME) \
+    && export MODEL_NAME 
+
+RUN --mount=type=secret,id=PREPROMPT,mode=0444,required=true MYSECRET=$(cat /run/secrets/PREPROMPT) \
+    && export PREPROMPT 
+
+RUN --mount=type=secret,id=MODEL_TEMPERATURE,mode=0444,required=true MYSECRET=$(cat /run/secrets/MODEL_TEMPERATURE) \
+    && export MODEL_TEMPERATURE 
+
+RUN envsubst < ".template.env.local" > ".env.local"
 
 RUN npm run build