Docker image (#42)

Reviewed-on: #42
Reviewed-by: Alexey Skobkin <skobkin-ru@ya.ru>

.dockerignore

@@ -0,0 +1,17 @@
+# Python
+.venv
+__pycache__
+
+# GIT
+.gitignore
+
+#CI configuration
+.drone.yml
+pylama.ini
+
+# Bot documentation
+README.md
+
+# Environment
+.env
+.env.dist

.env.dist

@@ -0,0 +1,8 @@
+RSSBOT_TG_TOKEN=1234567890:yourbotstoken
+
+# Optional variables
+# RSSBOT_DSN=xxx
+# POSTGRES_USER=xxx
+# POSTGRES_PASSWORD=xxx
+# POSTGRES_DB=xxx
+# LOG_LEVEL=INFO

.gitignore

@@ -5,5 +5,5 @@
 /.venv
 /__pycache__
 
-# Database
-/*.db
+# Environment
+.env

Dockerfile

@@ -0,0 +1,21 @@
+FROM python:3.10-alpine
+
+WORKDIR /bot
+
+COPY . .
+
+RUN pip install -r requirements.txt
+
+ENV PYTHONUNBUFFERED=1
+
+# App settings
+# https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-CONNSTRING
+ENV RSSBOT_DSN=postgres://username:password@hostname/database_name
+# https://core.telegram.org/bots#6-botfather
+ENV RSSBOT_TG_TOKEN=1234567890:yourbotstoken
+# https://docs.python.org/3/howto/logging.html#logging-levels
+ENV LOG_LEVEL=INFO
+
+ENTRYPOINT [ "python" ]
+
+CMD [ "bot.py" ]

README.md

@@ -43,4 +43,43 @@ python bot.py
 export RSSBOT_TG_TOKEN=xxx
 export RSSBOT_DSN=xxx
 python update.py
-```
+```
+
+## Running prebuild Docker Image
+
+### Running the bot
+```shell
+docker run -e RSSBOT_DSN=yyy RSSBOT_TG_TOKEN=xxx miroslavskaya/tg_rss_bot bot.py
+```
+
+### Running update
+```shell
+docker run -e RSSBOT_DSN=yyy RSSBOT_TG_TOKEN=xxx miroslavskaya/tg_rss_bot update.py
+```
+## Building and running Docker image from source
+
+```shell
+docker build . -t tg_rss_bot
+```
+
+### Running the bot
+```shell
+docker run -e RSSBOT_DSN=yyy RSSBOT_TG_TOKEN=xxx tg_rss_bot bot.py
+```
+
+### Running update
+```shell
+docker run -e RSSBOT_DSN=yyy RSSBOT_TG_TOKEN=xxx tg_rss_bot update.py
+```
+
+## Using Docker Compose
+
+### Running the bot
+```shell
+docker-compose up
+```
+
+### Running the update
+```shell
+docker-compose run app update.py
+```

docker-compose.yml

@@ -0,0 +1,32 @@
+version: '3.7'
+
+services:
+  app:
+    build: .
+    image: miroslavsckaya/tg_rss_bot
+    environment:
+      # DSN schema: postgres://username:password@hostname/database_name
+      # https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-CONNSTRING
+      - "RSSBOT_DSN=postgres://${BOT_DB_USER:-bot}:${BOT_DB_PASSWORD:-dev}@${BOT_DB_HOST:-db}/${BOT_DB_NAME:-bot}"
+      # https://core.telegram.org/bots#6-botfather
+      - "RSSBOT_TG_TOKEN=${RSSBOT_TG_TOKEN}"
+      # https://docs.python.org/3/howto/logging.html#logging-levels
+      - "LOG_LEVEL=${LOG_LEVEL:-INFO}"
+    depends_on: 
+      - postgres
+    restart: unless-stopped
+
+  db:
+    image: postgres:14-alpine
+    environment:
+      # Postgres settings
+      # https://hub.docker.com/_/postgres
+      - "POSTGRES_USER=${BOT_DB_USER:-bot}"
+      - "POSTGRES_PASSWORD=${BOT_DB_PASSWORD:-dev}"
+      - "POSTGRES_DB=${BOT_DB_NAME:-bot}"
+    volumes:
+      - db-data:/var/lib/postgresql/data
+    restart: unless-stopped
+  
+volumes:
+  db-data: