fix dockerfile

Dockerfile

@@ -1,48 +1,25 @@
 # syntax=docker/dockerfile:1
 
-# Comments are provided throughout this file to help you get started.
-# If you need more help, visit the Dockerfile reference guide at
-# https://docs.docker.com/engine/reference/builder/
-
-################################################################################
-# Create a stage for building the application.
-
-ARG APP_NAME=mastodon-image-uploader-bot
 FROM rust:1.79.0-slim-bullseye AS build
 WORKDIR /app
+ARG APP_NAME=mastodon-image-uploader-bot
+
 RUN apt update && apt install pkg-config openssl libssl-dev -y
-# Build the application.
-# Leverage a cache mount to /usr/local/cargo/registry/
-# for downloaded dependencies and a cache mount to /app/target/ for
-# compiled dependencies which will speed up subsequent builds.
-# Leverage a bind mount to the src directory to avoid having to copy the
-# source code into the container. Once built, copy the executable to an
-# output directory before the cache mounted /app/target is unmounted.
+
 RUN --mount=type=bind,source=src,target=src \
     --mount=type=bind,source=Cargo.toml,target=Cargo.toml \
     --mount=type=bind,source=Cargo.lock,target=Cargo.lock \
     <<EOF
 set -e
 cargo build --locked --release
+ls ./target/release/$APP_NAME
 cp ./target/release/$APP_NAME /bin/bot
 EOF
 
-################################################################################
-# Create a new stage for running the application that contains the minimal
-# runtime dependencies for the application. This often uses a different base
-# image from the build stage where the necessary files are copied from the build
-# stage.
-#
-# The example below uses the debian bullseye image as the foundation for running the app.
-# By specifying the "bullseye-slim" tag, it will also use whatever happens to be the
-# most recent version of that tag when you build your Dockerfile. If
-# reproducability is important, consider using a digest
-# (e.g., debian@sha256:ac707220fbd7b67fc19b112cee8170b41a9e97f703f588b2cdbbcdcecdd8af57).
 FROM debian:bullseye-slim AS final
 WORKDIR /app
 RUN apt update && apt install pkg-config openssl libssl-dev curl -y
-# Create a non-privileged user that the app will run under.
-# See https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#user
+
 ARG UID=10001
 RUN adduser \
     --disabled-password \
@@ -52,8 +29,6 @@ RUN adduser \
     botuser
 USER botuser
 
-# Copy the executable from the "build" stage.
 COPY --from=build /bin/bot /bin/
 
-# What the container should run when it is started.
 CMD ["/bin/bot"]