chore(ci): Update docker file to use environment variable properly

.github/workflows/production.yml

@@ -2,7 +2,7 @@ name: Production
 
 on:
   push:
-    branches: [main, ci-aws] # Remove ci-aws after testing
+    branches: [main]
 
 env:
   AWS_REGION: ap-southeast-2

Dockerfile

@@ -6,16 +6,17 @@ WORKDIR /app
 # Install dependencies
 COPY pyproject.toml poetry.lock ./
 
-RUN pip install poetry \
+RUN --mount=type=secret,id=GUILD_ID,target=/run/secrets/GUILD_ID \
+    --mount=type=secret,id=BOT_TOKEN,target=/run/secrets/BOT_TOKEN \
+    GUILD_ID=$(cat /run/secrets/GUILD_ID) \
+    BOT_TOKEN=$(cat /run/secrets/BOT_TOKEN) \
+    && echo "Guild ID: $GUILD_ID" \
+    && pip install poetry \
     && poetry config virtualenvs.create false \
     && poetry install --no-dev
 
 # Copy the rest of the application code
 COPY . .
 
-# Define environment variables from secrets
-RUN echo "GUILD_ID=$(cat /run/secrets/GUILD_ID)" >> /etc/environment \
-    && echo "BOT_TOKEN=$(cat /run/secrets/BOT_TOKEN)" >> /etc/environment
-
 # Run the bot
 CMD ["poetry", "run", "python", "src/main.py"]