Environment variables

Charlie will read its configuration from environment variables. If deployed in a Cloud Foundry environment, it will read environment variables from an associated custom user-provided service (CUPS) as well. Charlie will also populate environment variables with the values defined in .env, if present.

CUPS variables are highest priority. .env variables are second. Local variables have the lowest precedence.

name	purpose
SLACK_TOKEN	Required to connect to Slack. This is the bot user OAuth access token.
SLACK_SIGNING_SECRET	Required to receive events from Slack. This is available from the Slack app configuration page, under "Basic Information."
DATABASE_URL	Required to connect to the database used to store Charlie's "brain"
PORT	What port Charlie should listen to incoming webhook requests on. Slack will call these webhooks when it receives events. Defaults to port 3000.
TOCK_API	Required for Angry and Optimistic Tock bots. If not set, those bots will not start.
TOCK_TOKEN	Required for Angry and Optimistic Tock bots. If not set, those bots will not start.
ANGRY_TOCK_TIMEZONE	The timezone used for Angry Tock notifications for truant users. Defaults to America/New_York if unset.
ANGRY_TOCK_FIRST_TIME	The time of day for the first reminder to Tock truants. This is sent at the same time to all truants, based on the timezone in ANGRY_TOCK_TIMEZONE. Defaults to 10:00 am.
ANGRY_TOCK_SECOND_TIME	The time of day for the second reminder to Tock truants as well as supervisors. This is sent at the same time to all truants, based on the timezone in ANGRY_TOCK_TIMEZONE. Defaults to 4:00 pm.
ANGRY_TOCK_REPORT_TO	A comma-delimited list of channels or users to send the second truancy report to. Defaults to #18f-supes. Specify users with their Slack member ID (Uxxxxxxxxxx).
HAPPY_TOCK_REPORT_TO	A comma-delimited list of channels or users to celebrate with if nobody is truant. Defaults to #18f. Specify users with their Slack member ID (Uxxxxxxxxxx).
HOLIDAY_REMINDER_CHANNEL	What channel Charlie will post upcoming holiday reminders into. Defaults to general. Channel name should not include a hash sign.
HOLIDAY_REMINDER_TIME	What time to post holiday reminders. Defaults to 3:00 pm.
HOLIDAY_REMINDER_TIMEZONE	The timezone used to determine when to post the reminder. Defaults to America/New_York.
VOTING_REMINDER_CHANNEL	What channel Charlie will post upcoming election day reminders into. Defaults to general-talk. Channel name should not include a hash sign.
VOTING_REMINDER_TIME	What time to post election day reminders. Defaults to 10:00 am. Expects 24-hour times. All times Eastern.
LOG_LEVEL	Log level. When using Docker, this is set to debug. Otherwise defaults to log level info.