Refactor Dockerfile to minimize image size

.pre-commit-config.yaml

@@ -26,10 +26,10 @@ repos:
     rev: v3.19.1
     hooks:
       - id: pyupgrade
-        args: ["--py311-plus"]
+        args: ["--py39-plus"]
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.9.5
+    rev: v0.11.5
     hooks:
       - id: ruff-format
       - id: ruff

Dockerfile

@@ -1,23 +1,25 @@
-FROM python:3.13-slim
+# syntax=docker/dockerfile:1
+# check=error=true;experimental=all
+
+FROM --platform=$BUILDPLATFORM ghcr.io/jrottenberg/ffmpeg:7.1-scratch
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
-RUN apt-get update && apt-get install ffmpeg -y --no-install-recommends && rm -rf /var/lib/apt/lists/*
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV UV_COMPILE_BYTECODE=1
+ENV UV_LINK_MODE=copy
+ENV UV_NO_CACHE=1
 
-RUN useradd --create-home botuser && mkdir /Uploads && chown botuser:botuser /Uploads
+RUN apk add --no-cache shadow python3 && useradd --create-home botuser && mkdir /Uploads && chown botuser:botuser /Uploads
 USER botuser
 
 WORKDIR /app
+ADD --chown=botuser:botuser discord_embed /app/discord_embed
 
-RUN --mount=type=cache,target=/root/.cache/uv \
+RUN --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
-    --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
+    uv sync --no-install-project --no-dev
-    uv sync --no-install-project
-
-COPY --chown=botuser:botuser discord_embed /app/discord_embed
 
 VOLUME ["/Uploads"]
 EXPOSE 5000
 
-ENV PYTHONUNBUFFERED=1
-ENV PYTHONDONTWRITEBYTECODE=1
-
 CMD ["uv", "run", "uvicorn", "discord_embed.main:app", "--host", "0.0.0.0", "--port", "5000", "--use-colors", "--proxy-headers", "--forwarded-allow-ips", "*", "--log-level", "debug"]

discord_embed/generate_html.py

@@ -29,7 +29,7 @@ def generate_html_for_videos(
     Returns:
         Returns HTML for video.
     """
-    time_now: datetime.datetime = datetime.datetime.now(tz=datetime.UTC)
+    time_now: datetime.datetime = datetime.datetime.now(tz=datetime.timezone.utc)
     time_now_str: str = time_now.strftime("%Y-%m-%d %H:%M:%S %Z")
 
     video_html: str = f"""

noxfile.py

@@ -0,0 +1,14 @@
+from __future__ import annotations
+
+import nox
+
+nox.options.default_venv_backend = "uv"
+
+
+@nox.session(python=["3.9", "3.10", "3.11", "3.12", "3.13"])
+def tests(session: nox.Session) -> None:
+    """Run the test suite."""
+    # pip install .
+    session.install(".")
+    session.install("pytest", "pytest-httpx")
+    session.run("pytest")

pyproject.toml

@@ -3,7 +3,7 @@ name = "discord-embed"
 version = "1.0.0"
 description = "Make nice embeds for Discord"
 readme = "README.md"
-requires-python = ">=3.13"
+requires-python = ">=3.9"
 dependencies = [
   "discord-webhook",
   "fastapi",
@@ -16,7 +16,7 @@ dependencies = [
 ]
 
 [dependency-groups]
-dev = ["pytest", "httpx"]
+dev = ["pytest", "httpx", "nox"]
 
 [build-system]
 build-backend = "poetry.core.masonry.api"
@@ -30,7 +30,7 @@ authors = ["Joakim Hellsén <tlovinator@gmail.com>"]
 license = "GPL-3.0-or-later"
 
 [tool.poetry.dependencies]
-python = "^3.13"
+python = "^3.9"
 discord-webhook = "*"
 fastapi = "*"
 ffmpeg-python = "*"
@@ -43,6 +43,7 @@ uvicorn = {extras = ["standard"], version = "*"}
 [tool.poetry.group.dev.dependencies]
 httpx = "*"
 pytest = "*"
+nox = "*"
 
 [tool.ruff]
 preview = true