Ruby Project

A template for plain Ruby projects with database, backups, cronjobs, email and telegram support.

Usage

After cloning this template, customize the required gems in Gemfile then run bin/setup -d to install all development dependencies and duplicate the example configuration and env files.
In production, invoke it with bin/setup -p in order to locally configure bundler for deployment and skip development dependencies.

Run rake template:rename PROJECT=newname to rename the project and replace all occurrences across the repo files.

Customize config/config.yml with your credentials and variables.

Use the installed whenever gem to schedule recurring jobs via cron.
Customize the logic and the time interval in config/schedule.rb, then run bundle exec whenever --update-crontab.

The development console is available via bin/console.

The database supports migrations out-of-the-box: add progressive migration files in the db/migrations folder and run rake db:migrate to migrate.

To extend this template, simply add your custom code and logic in lib/ and in .rake files under the tasks/ directory.

HTML output

An optional rake task is available to create an HTML page from an ERB template that can be populated with database or other dynamic values and then served by a web server, functioning as visual output of the project.

First, customize your ERB template in web/template.html.erb, along with the css and javascript in the public folder if you need to. Then setup the variables binding in the web/variables.yml file. These variables will then be expanded in the template when running rake web:build and a web/public/index.html file will be created.
Don't forget to call the rake task in the schedule too if you want the page to be updated automatically.

Use rake web:serve to launch WEBrick locally and see your result.

In production you'll want to serve the web/public folder as a whole.

Environmental variables

Environmental variables have precedence over values defined in the configuration file and can be used to override them.

Configuration

• CONFIG_FILE: Path to YAML configuration file

Database

PostgreSQL/MySQL

• DATABASE_URL: Database URL (overrides all other database variables)
• POSTGRES_HOST or MYSQL_HOST: Database hostname or IP
• POSTGRES_PORT or MYSQL_PORT: Database port
• POSTGRES_USERNAME or MYSQL_USERNAME: Database username
• POSTGRES_PASSWORD or MYSQL_PASSWORD: Database password
• POSTGRES_DATABASE or MYSQL_DATABASE: Database name

SQLite

• SQLITE_FILE: Database file path

Redis

• REDIS_HOST: Database hostname or IP
• REDIS_PORT: Database port
• REDIS_DATABASE: Database number

Logs

• SUPPRESS_LOG: Suppress stdout/stderr log output
• LOG_TO_FILE: Log to file instead of stdout/stderr
• STDOUT_LOG: Standard output log file path
• STDERR_LOG: Standard error log file path

Telegram

• TELEGRAM_APP_NAME: Application name displayed in messages
• TELEGRAM_TOKEN: Bot token
• TELEGRAM_USER: Recipient user ID
• TELEGRAM_ENABLED: Whether Telegram notifications are enabled

AWS

S3

• AWS_S3_ACCESS_KEY_ID: Access key
• AWS_S3_SECRET_ACCESS_KEY: Secret access key
• AWS_S3_REGION: Region
• AWS_S3_BUCKET: Bucket name
• AWS_S3_PREFIX: Bucket prefix (with final slash)

SES

• AWS_SES_ACCESS_KEY_ID: Access key
• AWS_SES_SECRET_ACCESS_KEY: Secret access key
• AWS_SES_REGION: Region
• AWS_SES_FROM_NAME: Name of the sender
• AWS_SES_FROM_EMAIL: Email of the sender
• AWS_SES_TO_EMAIL: Email of the recipient(s)
• AWS_SES_ENCODING: Character encoding (default UTF-8)