Homebrew done the smart way
Brewing beer at home is a really cool hobby. Sometimes, it can be a bit tedious, but nothing can compete with the taste of the beer that you brewed yourself.
To help myself with this task, I'm building a microBrew suite that will help me to automate some of the tasks, and hopefully make the whole process a bit easier.
This project containe the source code for the server used for temperature monitoring and heating element control. It communicates with microBrew-controller using very simple text based protocol.
Before you can get started with development, you need to make sure that all prerequisites are installed on your system. Project uses InfluxDB for recording temperatures, and CouchDB for storing brew batch metadata and recipes in the future. Those can be either installed on your system or run inside Docker container using provided docker-compose.yml file.
Next, create Python virtual environment that will be used for development, and install required dependencies:
# Create virtual environment
virtualenv venv
# Activate virtual environment
venv/Scripts/activate.sh # linux
# or
venv\Scripts\activate.bat # windows
# Finally install dependencies
pip install requirements.txtRunning docker-compose up for the first time will fetch pull all required images from docker hub and create containers for InfluxDB and CouchDB. However, initial configuration needs to be performed to set up initial accounts that will be used by the application.
Open following link in a browser and configure admin account.
For development just use root as username and password.
InfluxDB doesn't require authentication by default, let's leave it this way for development.
Chronograf is a dashboard that can be used for viewing records in InfluxDB database.
Open following link in a browser. In setup wizard update connection url to http://timeseries-db:8086.
Server reads its configuration from environment variables. All of the variables listed below, need to be set up on your dev machine before running the server. Take a look at docker-compose.yml to see how those are configured in docker environment.
| Variable Name | Description |
|---|---|
| TS_DB_HOST | InfluxDB hostname |
| TS_DB_PORT | InfluxDB port |
| TS_DB_USERNAME | InfluxDB username |
| TS_DB_PASSWORD | InfluxDB password |
| TS_DB_DATABASE | IndluxDB database name |
| BR_DB_HOST | CouchDB hostname |
| BR_DB_PORT | CouchDB port |
| BR_DB_USERNAME | CouchDB username |
| BR_DB_PASSWORD | CouchDB password |
| BR_DB_DATABASE | CouchDB database name |