Strip down docker container size

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.11-slim
+FROM python:3.12
 
 LABEL org.opencontainers.image.source https://git.i-am.nexus/nex/college-bot-v2
 LABEL org.opencontainers.image.url https://git.i-am.nexus/nex/college-bot-v2
@@ -11,50 +11,50 @@ WORKDIR /app
 RUN DEBIAN_FRONTEND=noninteractive apt-get update
 
 # Install chrome dependencies
-RUN DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-webext-ublock-origin-chromium \
-gconf-service \
-libasound2 \
-libatk1.0-0 \
-libc6 \
-libcairo2 \
-libcups2 \
-libdbus-1-3 \
-libexpat1 \
-libfontconfig1 \
-libgcc1 \
-libgconf-2-4 \
-libgdk-pixbuf2.0-0 \
-libglib2.0-0 \
-libgtk-3-0 \
-libnspr4 \
-libpango-1.0-0 \
-libpangocairo-1.0-0 \
-libstdc++6 \
-libx11-6 \
-libx11-xcb1 \
-libxcb1 \
-libxcomposite1 \
-libxcursor1 \
-libxdamage1 \
-libxext6 \
-libxfixes3 \
-libxi6 \
-libxrandr2 \
-libxrender1 \
-libxss1 \
-libxtst6 \
-ca-certificates \
-fonts-liberation \
-libappindicator1 \
-libnss3 \
-lsb-release \
-xdg-utils 
-
-RUN DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-    chromium-common \
-    chromium-driver \
-    chromium-sandbox 
+#RUN DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+#webext-ublock-origin-chromium \
+#gconf-service \
+#libasound2 \
+#libatk1.0-0 \
+#libc6 \
+#libcairo2 \
+#libcups2 \
+#libdbus-1-3 \
+#libexpat1 \
+#libfontconfig1 \
+#libgcc1 \
+#libgconf-2-4 \
+#libgdk-pixbuf2.0-0 \
+#libglib2.0-0 \
+#libgtk-3-0 \
+#libnspr4 \
+#libpango-1.0-0 \
+#libpangocairo-1.0-0 \
+#libstdc++6 \
+#libx11-6 \
+#libx11-xcb1 \
+#libxcb1 \
+#libxcomposite1 \
+#libxcursor1 \
+#libxdamage1 \
+#libxext6 \
+#libxfixes3 \
+#libxi6 \
+#libxrandr2 \
+#libxrender1 \
+#libxss1 \
+#libxtst6 \
+#ca-certificates \
+#fonts-liberation \
+#libappindicator1 \
+#libnss3 \
+#lsb-release \
+#xdg-utils
+#
+#RUN DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+#    chromium-common \
+#    chromium-driver \
+#    chromium-sandbox
 
 # Install general utilities
 RUN DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
@@ -67,11 +67,6 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
     curl \
     libmagic-dev
 
-# Install image dependencies
-RUN DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-    ffmpeg \
-    imagemagick 
-
 RUN python3 -m venv /app/venv
 RUN /app/venv/bin/pip install --upgrade --no-input pip wheel setuptools
 

docker-compose.yml

@@ -9,6 +9,11 @@ services:
       - ./jimmy.log:/app/jimmy.log
       - /dev/dri:/dev/dri
       - jimmy-data:/app/data
+      - /etc/localtime:/etc/localtime:ro
+      - /etc/timezone:/etc/timezone:ro
+      - /usr/bin/nmap:/usr/bin/nmap:ro
+      - /usr/bin/ffmpeg:/usr/bin/ffmpeg:ro
+      - /usr/bin/ffprobe:/usr/bin/ffprobe:ro
     extra_hosts:
       - host.docker.internal:host-gateway
     depends_on:

src/cogs/auto_responder.py

@@ -1,5 +1,11 @@
+# In order to use commands in this system, the following things must be installed (ideally in /usr/local/bin):
+# - `ffmpeg`, usually `ffmpeg`, sometimes `ffmpeg-full`.
+#   - /dev/dri should be passed through to the container for hardware acceleration.
+# - `ffprobe`, usually `ffmpeg`, sometimes `ffmpeg-full`.
+# In docker, you can just bind these as volumes, and read-only too.
 import asyncio
 import io
+import shutil
 import typing
 from collections.abc import Iterable
 import logging
@@ -105,6 +111,12 @@ class AutoResponder(commands.Cog):
         :param uri: The URI to transcode
         :return: A transcoded file
         """
+        if not shutil.which("ffmpeg"):
+            self.log.error("ffmpeg not installed")
+            return
+        if not shutil.which("ffprobe"):
+            self.log.error("ffprobe not installed")
+            return
         last_reaction: str | None = None
 
         def update_reaction(new: str | None = None) -> None:
@@ -118,9 +130,7 @@ class AutoResponder(commands.Cog):
                 last_reaction = new
         self.log.info("Waiting for transcode lock to release")
         async with self.transcode_lock:
-            cog: FFMeta = self.bot.get_cog("FFMeta")
-            if not cog:
-                raise RuntimeError("FFMeta cog not loaded")
+            cog = FFMeta(self.bot)
             if not isinstance(uri, str):
                 uri = str(uri)
 
@@ -240,6 +250,12 @@ class AutoResponder(commands.Cog):
         *domains: str,
         additional: Iterable[str] = None
     ) -> None:
+        if not shutil.which("ffmpeg"):
+            self.log.error("ffmpeg not installed")
+            return
+        if not shutil.which("ffprobe"):
+            self.log.error("ffprobe not installed")
+            return
         if self.allow_hevc_to_h264 is False:
             self.log.debug("hevc_to_h264 is disabled, not engaging.")
             return

src/cogs/election.py

@@ -2,7 +2,6 @@
 This module is only meant to be loaded during election times.
 """
 import asyncio
-import datetime
 import logging
 import re
 

src/cogs/ffmeta.py

@@ -1,8 +1,14 @@
+# In order to use commands in this system, the following things must be installed (ideally in /usr/local/bin):
+# - `ffmpeg`, usually `ffmpeg`, sometimes `ffmpeg-full`.
+#   - /dev/dri should be passed through to the container for hardware acceleration.
+# - `ffprobe`, usually `ffmpeg`, sometimes `ffmpeg-full`.
+# In docker, you can just bind these as volumes, and read-only too.
 import asyncio
 import io
 import json
 import logging
 import pathlib
+import shutil
 import sys
 import tempfile
 import typing
@@ -56,6 +62,8 @@ class FFMeta(commands.Cog):
     @commands.slash_command()
     async def ffprobe(self, ctx: discord.ApplicationContext, url: str = None, attachment: discord.Attachment = None):
         """Runs ffprobe on a given URL or attachment"""
+        if not shutil.which("ffprobe"):
+            return await ctx.respond("ffprobe is not installed on this system.")
         if url is None:
             if attachment is None:
                 return await ctx.respond("No URL or attachment provided")
@@ -142,6 +150,10 @@ class FFMeta(commands.Cog):
         ] = False,
     ):
         """Converts a given URL or attachment to an Opus file"""
+        if not shutil.which("ffmpeg"):
+            return await ctx.respond("ffmpeg is not installed on this system.")
+        if not shutil.which("ffprobe"):
+            return await ctx.respond("ffprobe is not installed on this system.")
         if bitrate == 0:
             bitrate = 0.5
         if mono:
@@ -244,6 +256,8 @@ class FFMeta(commands.Cog):
         rbh = Path("assets/right-behind-you.ogg").resolve()
         if not rbh.exists():
             return await ctx.respond("The file `right-behind-you.ogg` is missing.")
+        if not shutil.which("ffmpeg"):
+            return await ctx.respond("ffmpeg is not installed on this system.")
         if not image.content_type.startswith("image"):
             return await ctx.respond("That's not an image!")
         with tempfile.NamedTemporaryFile(suffix=Path(image.filename).suffix) as temp:

src/cogs/net.py

@@ -1,3 +1,9 @@
+# In order to use commands in this system, the following things must be installed (ideally in /usr/local/bin):
+# - `ping`, usually iputils-ping
+# - `whois`, usually whois
+# - `traceroute`, usually traceroute
+# - `nmap`, usually nmap
+# In docker, you can just bind these as volumes, and read-only too.
 import asyncio
 import io
 import json
@@ -49,6 +55,8 @@ class NetworkCog(commands.Cog):
     @commands.slash_command()
     async def ping(self, ctx: discord.ApplicationContext, target: str = None):
         """Get the bot's latency, or the network latency to a target."""
+        if not shutil.which("ping"):
+            return await ctx.respond("Ping is not installed on this system.")
         if target is None:
             return await ctx.respond(f"Pong! {round(self.bot.latency * 1000)}ms")
         else:
@@ -75,6 +83,8 @@ class NetworkCog(commands.Cog):
     @commands.slash_command()
     async def whois(self, ctx: discord.ApplicationContext, target: str):
         """Get information about a user."""
+        if not shutil.which("whois"):
+            return await ctx.respond("Whois is not installed on this system.")
 
         async def run_command(with_disclaimer: bool = False):
             args = [] if with_disclaimer else ["-H"]
@@ -221,6 +231,8 @@ class NetworkCog(commands.Cog):
         await ctx.defer()
         if re.search(r"\s+", url):
             return await ctx.respond("URL cannot contain spaces.")
+        if not shutil.which("traceroute"):
+            return await ctx.respond("Traceroute is not installed on this system.")
 
         args = ["sudo", "-E", "-n", "traceroute"]
         flags = {

src/cogs/ytdl.py

@@ -3,6 +3,7 @@ import functools
 import hashlib
 import logging
 import math
+import shutil
 import time
 import datetime
 
@@ -190,6 +191,8 @@ class YTDLCog(commands.Cog):
         :param file: The file to convert
         :return: The converted file
         """
+        if not shutil.which("ffmpeg"):
+            raise RuntimeError("ffmpeg is not installed.")
         new_file = file.with_suffix(".m4a")
         args = [
             "-vn",
@@ -319,8 +322,9 @@ class YTDLCog(commands.Cog):
                 else:
                     chosen_format = user_format
 
+            ffmpeg_installed = bool(shutil.which("ffmpeg"))
             options.setdefault("postprocessors", [])
-            if audio_only:
+            if audio_only and ffmpeg_installed:
                 # Overwrite format here to be best audio under 25 megabytes.
                 chosen_format = "ba[filesize<20M]"
                 # Also force sorting by the best audio bitrate first.
@@ -332,7 +336,7 @@ class YTDLCog(commands.Cog):
             options["format"] = chosen_format
             options["paths"] = paths
 
-            if subtitles:
+            if subtitles and ffmpeg_installed:
                 subtitles, burn = subtitles.split("+", 1) if "+" in subtitles else (subtitles, "0")
                 burn = burn[0].lower() in ("y", "1", "t")
                 if subtitles.lower() == "auto":