Environment Variables

0DIN Scanner uses environment variables for two purposes:

1. System configuration: set in your .env file (read by Docker Compose)
2. AI provider API keys: managed via the 0DIN Scanner UI and stored encrypted per-target

System Configuration

Set these in your root .env file before starting 0DIN Scanner.

Required

Variable	Description
SECRET_KEY_BASE	Secret key for sessions and encryption. Generate with openssl rand -hex 64.
POSTGRES_PASSWORD	PostgreSQL database password.
ADMIN_INITIAL_PASSWORD	Initial admin password used only when creating the first admin account. Generate with openssl rand -base64 24.

Network & Port

Variable	Default	Description
PORT	80	Host port 0DIN Scanner is accessible on. Change if port 80 is unavailable.
ASSUME_SSL	false	Set to true when running behind a TLS-terminating proxy.
SESSION_COOKIE_DOMAIN	—	Required when ACTION_CABLE_URL uses a different subdomain (e.g., .scanner.example.com).
ACTION_CABLE_URL	—	WebSocket URL when WebSockets are on a different host (e.g., wss://ws.scanner.example.com/cable).

Database

Variable	Default	Description
POSTGRES_USER	scanner	Database username.
POSTGRES_HOST	postgres	Hostname (only needed for external PostgreSQL).
POSTGRES_PORT	5432	Port number.
DATABASE_URL	—	Full PostgreSQL URL. Overrides individual POSTGRES_* vars.

See Database Configuration for DATABASE_URL format and managed PostgreSQL setup.

Scanning Behavior

Variable	Default	Description
EVALUATION_THRESHOLD	0.2	Controls vulnerability detection strictness. Lower = stricter.
RETENTION_DAYS	90	Days to keep reports before automatic deletion.
DEBUG_LOG_TAIL_BYTES	131072	Maximum bytes synced into live report execution-log tails. Set to 0 to disable live-tail reads. Blank, non-integer, or negative values fall back to the default. This is read by the Python runner at startup, applies globally, and requires restarting 0DIN Scanner after changes.

Logging

Variable	Default	Description
RAILS_LOG_LEVEL	info	Log verbosity: debug, info, warn, error.

Admin Seed Account

Variable	Default	Description
ADMIN_EMAIL	admin@example.com	Initial admin email (used only on first boot).
ADMIN_INITIAL_PASSWORD	—	Required outside development/test; initial admin password used only on first boot.

---

AI Provider API Keys (via UI)

API keys for AI providers are configured through the 0DIN Scanner UI, not in .env. This keeps secrets scoped per-tenant and encrypted at rest.

How to Configure API Keys

1. Log in to 0DIN Scanner
2. Navigate to Configuration → Environment Variables
3. Click New Environment Variable
4. Set:
   • Target: leave blank for global, or select a specific target
   • Name: the variable name (see table below)
   • Value: your API key

Supported API Key Variables

OpenAI

• OPENAI_API_KEY: Your OpenAI API key (sk-...)
  • Get it: platform.openai.com/account/api-keys

OpenRouter

• OPENROUTER_API_KEY
  • Get it: openrouter.ai/keys

Azure OpenAI

• AZURE_API_KEY
• AZURE_ENDPOINT: Your Azure resource endpoint URL
• AZURE_MODEL_NAME: Deployment name

Anthropic

• ANTHROPIC_API_KEY
  • Get it: console.anthropic.com/account/keys

Groq

• GROQ_API_KEY
  • Get it: console.groq.com/keys

Replicate

• REPLICATE_API_TOKEN (r8-...)
  • Get it: replicate.com/account/api-tokens

Hugging Face

• HF_TOKEN
  • Get it: huggingface.co/settings/tokens

Cohere

• COHERE_API_KEY
  • Get it: dashboard.cohere.ai/api-keys

Global vs. Target-Specific Variables

Global variables (no target selected) apply to all scans. Target-specific variables override globals for that target only.

Use target-specific keys to:

• Use different credentials for production vs. test targets
• Limit credential exposure if a key is compromised
• Test the same model with different API plans

Priority: target-specific → global (target-specific always wins)

Evaluation Threshold Tuning

Environment	Recommended EVALUATION_THRESHOLD
Production (strict)	0.1 – 0.15
Development / testing	0.2 – 0.3
Initial exploration	0.3 – 0.5