Env variables

Docker image supports the following env variables:

• DB_USER - database username. defaults to postgres
• DB_PASS - database password. required
• DB_PASS_FILE - alternative for DB_PASS. accepts a file path, and uses file contents as DB password
• DB_HOST - database hostname. required
• DB_PORT - database port. defaults to 5432
• DB_NAME - database name. defaults to postgres
• COOKIE_SECRET - magic string used to sign cookies. required. must be at least 64 characters long. you can use openssl rand -base64 64 to generate it
• COOKIE_SECRET_FILE - alternative for COOKIE_SECRET. same as DB_PASS/DB_PASS_FILE pair
• APP_URL - public URL of deployed application (e.g. https://news.example.com). required
• DISABLE_SECURE_COOKIE - makes auth cookie non-Secure. defaults to false. this variable is generally not recommended to be used, but can be useful when your self-hosted infrastructure doesn't have HTTPS yet (see issue #94)