mount the secret

Dockerfile

@@ -16,11 +16,11 @@ WORKDIR /app
 
 # Clone the private repo using the GitHub token
 # We'll use build arguments and ARGs to pass the token
-ARG GITHUB_TOKEN
 ARG REPO_URL="github.com/Jhsmit/instagibbs.git"
 
-# Clone the repo
-RUN git clone https://${GITHUB_TOKEN}@${REPO_URL} instagibbs
+# The secret 'github_token' must be provided during the build
+RUN --mount=type=secret,id=GITHUB_TOKEN \
+    git clone https://$(cat /run/secrets/GITHUB_TOKEN)@${REPO_URL} instagibbs
 
 # Install requirements
 WORKDIR /app/instagibbs