Environment Variables

All configuration is done through environment variables. Set them in a .env file in the project root or pass them directly to Docker.

Core

Variable	Default	Required	Description
PORT	8080	No	Port the application listens on
APP_ENV	development	No	Set to production for production deployments
LOG_LEVEL	info	No	Log verbosity: debug, info, warn, error

Database

Variable	Default	Required	Description
DATABASE_URL	postgresql://regen:secret@localhost:5432/regen?sslmode=disable	Yes (production)	PostgreSQL connection string
DB_MAX_OPEN_CONNS	25	No	Maximum open database connections
DB_MAX_IDLE_CONNS	5	No	Maximum idle database connections
DB_CONN_MAX_LIFE	5m	No	Maximum connection lifetime

Migrations run automatically on startup. No manual migration step required.

Redis

Variable	Default	Required	Description
REDIS_URL	redis://localhost:6379	No	Redis connection URL (ignored when Sentinel is configured)
REDIS_PASSWORD	-	No	Redis password (used in both single and Sentinel mode)
REDIS_SENTINEL_ADDRS	-	No	Comma-separated Sentinel addresses for HA: sentinel1:26379,sentinel2:26379
REDIS_SENTINEL_MASTER	mymaster	No	Sentinel master name (only used when REDIS_SENTINEL_ADDRS is set)

Slack

Variable	Default	Required	Description
SLACK_BOT_TOKEN	-	Yes (Slack)	Bot token starting with xoxb-
SLACK_SIGNING_SECRET	-	Yes (Slack)	Signing secret from your Slack app
SLACK_APP_TOKEN	-	Yes (Slack)	App-level token starting with xapp- - required for interactive buttons (Make me Lead, Add Note)

See Connecting Slack for how to obtain these values.

Microsoft Teams

Variable	Default	Required	Description
TEAMS_APP_ID	-	Yes (Teams)	Azure App Registration Application ID
TEAMS_APP_PASSWORD	-	Yes (Teams)	Azure App Registration client secret
TEAMS_TENANT_ID	-	Yes (Teams)	Azure AD Tenant ID
TEAMS_TEAM_ID	-	Yes (Teams)	ID of the Team where incident channels are created
TEAMS_BOT_USER_ID	-	Yes (Teams)	AAD object ID of the bot user (required for DMs)
TEAMS_SERVICE_URL	https://smba.trafficmanager.net/amer/	No	Bot Framework relay URL - change for non-US tenants: /emea/, /apac/, /in/

Teams integration is disabled when TEAMS_APP_ID is not set.

AI (OpenAI)

Variable	Default	Required	Description
OPENAI_API_KEY	-	No	Your OpenAI API key - AI features are disabled when not set
OPENAI_MODEL	gpt-4o-mini	No	Model to use for summaries and post-mortem generation
OPENAI_MAX_TOKENS	1000	No	Token limit for summaries
OPENAI_POSTMORTEM_MAX_TOKENS	3000	No	Token limit for post-mortem generation

The API key can also be set through Settings → System in the UI without a container restart.

SAML SSO

SAML SSO is free and included in the Community edition.

Variable	Default	Required	Description
SAML_IDP_METADATA_URL	-	Yes (SSO)	Your IdP metadata URL - SSO is disabled when not set
SAML_BASE_URL	http://localhost:8080	Yes (SSO)	Externally reachable base URL of this instance (e.g. https://incidents.yourcompany.com)
SAML_ENTITY_ID	-	No	SP EntityID - defaults to <SAML_BASE_URL>/saml/metadata
SAML_CERT_FILE	-	No	Path to SP certificate PEM - auto-generated self-signed cert used if not set
SAML_KEY_FILE	-	No	Path to SP private key PEM - auto-generated if not set
SAML_ALLOW_IDP_INITIATED	false	No	Allow IdP-initiated flows (e.g. Okta tile clicks)

See SAML SSO for setup guides for Okta, Azure AD, and Google Workspace.

CORS

Variable	Default	Required	Description
CORS_ALLOWED_ORIGINS	-	No	Comma-separated list of allowed origins for API requests (e.g. https://incidents.yourcompany.com). Leave empty when the frontend and API are on the same origin (default with make start).

Example .env file

# Required
DATABASE_URL=postgresql://regen:strongpassword@db:5432/regen?sslmode=disable
REDIS_URL=redis://redis:6379

# Slack
SLACK_BOT_TOKEN=xoxb-...
SLACK_SIGNING_SECRET=...
SLACK_APP_TOKEN=xapp-...

# AI (optional)
OPENAI_API_KEY=sk-...

# Production
APP_ENV=production
PORT=8080