Added Dockerfile and docker-compose config

Dockerfile

@@ -0,0 +1,17 @@
+FROM python:3.9
+
+WORKDIR /usr/src/app
+
+COPY . .
+RUN pip install --no-cache-dir poetry
+RUN poetry install
+
+ENV TZ="America/Toronto" \
+	BOT_TOKEN=-1 \
+	CHAT_ID=0 \
+	POSTGRES_USER=postgres \
+	POSTGRES_PASSWORD=password \
+	POSTGRES_HOST=db \
+	POSTGRES_DB=telegram_bot
+
+CMD [ "sh", "-c", "poetry run python -m telegram_stats_bot.main --tz=$TZ $BOT_TOKEN $CHAT_ID postgresql://$POSTGRES_USER:$POSTGRES_PASSWORD@$POSTGRES_HOST/$POSTGRES_DB" ]

README.rst

@@ -35,6 +35,8 @@ Table of contents
 
 - `Installation`_
 
+- `Docker`_
+
 - `Setup`_
 
 - `Fetching Stats`_
@@ -133,6 +135,13 @@ Or you can install the latest git version using `poetry <https://python-poetry.o
     
 Installing directly with ``setup.py`` should also work from the Pypi sdist (but why?).
 
+------
+Docker
+------
+
+A Docker image is available under ``mkdryden/telegram-stats-bot`` and a sample ``docker-compose.yml`` is in the root of the repository including database setup.
+Be sure to set the ``TZ``, ``BOT_TOKEN``, and ``CHAT_ID`` environment variable appropriately in your ``docker-run`` command or the ``docker-compose.yml`` file.
+
 -----
 Setup
 -----

docker-compose.yml

@@ -0,0 +1,29 @@
+version: "3.8"
+
+services:
+  telegram-stats-bot:
+    # Uncomment to use local version
+    # build:
+      # context: .
+    image: mkdryden/telegram-stats-bot:latest
+    depends_on:
+      - db
+    environment:
+      TZ: "America/Toronto"
+      BOT_TOKEN: 111111111:AAA-MpBVQ7i2cIRfwedfsfesdg6webc0r-Y
+      CHAT_ID: 0
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: password
+      POSTGRES_HOST: db
+      POSTGRES_DB: telegram_bot
+  db:
+    image: postgres:12
+    restart: always
+    volumes:
+      - db-data:/var/lib/postgresql/data
+    environment:
+      POSTGRES_PASSWORD: password
+      POSTGRES_DB: telegram_bot
+
+volumes:
+  db-data: