Added docker-related stuff

.dockerignore

@@ -0,0 +1,40 @@
+### OS-specific
+
+# Linux
+*~
+*.swp
+.fuse_hidden*
+.directory
+
+# Windows
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+*.stackdump
+[Dd]esktop.ini
+$RECYCLE.BIN/
+*.lnk
+
+### Python
+__pycache__/
+*.py[cod]
+*$py.class
+.env
+.venv
+env/
+venv/
+ENV/
+*.egg
+dist/
+build/
+
+### Pycharm
+.idea/
+
+# Misc
+*log
+*.bak
+
+### Git repo
+.git*
+*.md

.gitignore

@@ -2,6 +2,7 @@
 
 # Linux
 *~
+*.swp
 .fuse_hidden*
 .directory
 

Dockerfile

@@ -0,0 +1,36 @@
+FROM python:3-alpine AS builder
+
+COPY . /bot
+
+WORKDIR /bot
+
+RUN apk upgrade --no-cache \
+ && apk add --no-cache alpine-sdk \
+                       openssl openssl-dev \
+					   libffi libffi-dev \
+ && python -m venv venv \
+ && . ./venv/bin/activate \
+ && pip install -r requirements.txt
+
+# ===
+
+FROM python:3-alpine
+
+RUN apk upgrade --no-cache \
+ && apk add --no-cache bash openssl libffi \
+ && adduser potato --disabled-password \
+	               --shell /bin/false \
+				   --home /bot \
+				   --no-create-home
+
+WORKDIR /bot
+
+COPY --from=builder /bot/entrypoint.sh .
+COPY --from=builder /bot/bot.py .
+COPY --from=builder /bot/venv venv
+COPY --from=builder /bot/LICENSE .
+
+USER potato
+
+ENTRYPOINT ["/bot/entrypoint.sh"]
+

entrypoint.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+# Send SIGTERM to all running processes on exit
+trap "/bin/kill -s TERM -1" SIGTERM SIGQUIT
+
+case "${1}" in
+    '')
+        source /bot/venv/bin/activate
+        python /bot/bot.py
+    ;;
+    *) exec ${@} ;;
+esac
+