> ## Documentation Index > Fetch the complete documentation index at: https://trigger-maxcomputeseconds.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Webapp > Environment variables for the webapp container. | Name | Required | Default | Description | | :----------------------------------------------- | :------- | :--------------------------------------------- | :----------------------------------------------------------------------------------------------------------------- | | **Secrets** | | | | | `SESSION_SECRET` | Yes | — | Session encryption secret. Run: `openssl rand -hex 16` | | `MAGIC_LINK_SECRET` | Yes | — | Magic link encryption secret. Run: `openssl rand -hex 16` | | `ENCRYPTION_KEY` | Yes | — | Secret store encryption key. Run: `openssl rand -hex 16` | | `MANAGED_WORKER_SECRET` | No | managed-secret | Managed worker secret. Should be changed and match supervisor. | | **Domains & ports** | | | | | `REMIX_APP_PORT` | No | 3030 | Remix app port. | | `APP_ORIGIN` | Yes | [http://localhost:3030](http://localhost:3030) | App origin URL. | | `LOGIN_ORIGIN` | Yes | [http://localhost:3030](http://localhost:3030) | Login origin URL. Most likely the same as `APP_ORIGIN`. | | `API_ORIGIN` | No | `APP_ORIGIN` | API origin URL. | | `STREAM_ORIGIN` | No | `APP_ORIGIN` | Realtime stream origin URL. | | `ELECTRIC_ORIGIN` | No | [http://localhost:3060](http://localhost:3060) | Electric origin URL. | | **Postgres** | | | | | `DATABASE_URL` | Yes | — | PostgreSQL connection string. | | `DIRECT_URL` | Yes | — | Direct DB connection string used for migrations etc. | | `DATABASE_CONNECTION_LIMIT` | No | 10 | Max DB connections. | | `DATABASE_POOL_TIMEOUT` | No | 60 | DB pool timeout (s). | | `DATABASE_CONNECTION_TIMEOUT` | No | 20 | DB connect timeout (s). | | `DATABASE_READ_REPLICA_URL` | No | `DATABASE_URL` | Read-replica DB string. | | **Redis** | | | | | `REDIS_HOST` | Yes | — | Redis host. | | `REDIS_PORT` | Yes | — | Redis port. | | `REDIS_READER_HOST` | No | `REDIS_HOST` | Redis reader host. | | `REDIS_READER_PORT` | No | `REDIS_PORT` | Redis reader port. | | `REDIS_USERNAME` | No | — | Redis username. | | `REDIS_PASSWORD` | No | — | Redis password. | | `REDIS_TLS_DISABLED` | No | — | Disable Redis TLS. | | **Auth** | | | | | `WHITELISTED_EMAILS` | No | — | Whitelisted emails regex. | | `AUTH_GITHUB_CLIENT_ID` | No | — | GitHub client ID. | | `AUTH_GITHUB_CLIENT_SECRET` | No | — | GitHub client secret. | | **Email** | | | | | `EMAIL_TRANSPORT` | No | — | Email transport type. One of `resend`, `smtp`, `aws-ses`. | | `FROM_EMAIL` | No | — | From email address. | | `REPLY_TO_EMAIL` | No | — | Reply-to email address. | | `RESEND_API_KEY` | No | — | Resend API key. | | `SMTP_HOST` | No | — | SMTP host. | | `SMTP_PORT` | No | — | SMTP port. | | `SMTP_SECURE` | No | — | SMTP secure flag. | | `SMTP_USER` | No | — | SMTP user. | | `SMTP_PASSWORD` | No | — | SMTP password. | | `AWS_REGION` | No | — | AWS region for SES. | | `AWS_ACCESS_KEY_ID` | No | — | AWS access key ID for SES. | | `AWS_SECRET_ACCESS_KEY` | No | — | AWS secret access key for SES. | | **Graphile & Redis worker** | | | | | `WORKER_CONCURRENCY` | No | 10 | Redis worker concurrency. | | `WORKER_POLL_INTERVAL` | No | 1000 | Redis worker poll interval (ms). | | `WORKER_SCHEMA` | No | graphile\_worker | Graphile worker schema. | | `GRACEFUL_SHUTDOWN_TIMEOUT` | No | 60000 (1m) | Graphile graceful shutdown timeout (ms). Affects shutdown time. | | **Concurrency limits** | | | | | `DEFAULT_ENV_EXECUTION_CONCURRENCY_LIMIT` | No | 100 | Default env execution concurrency. | | `DEFAULT_ORG_EXECUTION_CONCURRENCY_LIMIT` | No | 300 | Default org execution concurrency, needs to be 3x env concurrency. | | **Dev** | | | | | `DEV_MAX_CONCURRENT_RUNS` | No | 25 | Sets the max concurrency for dev runs via the CLI. | | `DEV_OTEL_EXPORTER_OTLP_ENDPOINT` | No | `APP_ORIGIN/otel` | OTel endpoint for dev runs. | | **Rate limiting** | | | | | `API_RATE_LIMIT_REFILL_INTERVAL` | No | 10s | API rate limit refill interval. | | `API_RATE_LIMIT_MAX` | No | 750 | API rate limit max. | | `API_RATE_LIMIT_REFILL_RATE` | No | 250 | API rate limit refill rate. | | `API_RATE_LIMIT_REQUEST_LOGS_ENABLED` | No | 0 | API rate limit request logs. | | `API_RATE_LIMIT_REJECTION_LOGS_ENABLED` | No | 1 | API rate limit rejection logs. | | `API_RATE_LIMIT_LIMITER_LOGS_ENABLED` | No | 0 | API rate limit limiter logs. | | `API_RATE_LIMIT_JWT_WINDOW` | No | 1m | API rate limit JWT window. | | `API_RATE_LIMIT_JWT_TOKENS` | No | 60 | API rate limit JWT tokens. | | **Deploy & Registry** | | | | | `DEPLOY_REGISTRY_HOST` | Yes | — | Deploy registry host. | | `DEPLOY_REGISTRY_USERNAME` | No | — | Deploy registry username. | | `DEPLOY_REGISTRY_PASSWORD` | No | — | Deploy registry password. | | `DEPLOY_REGISTRY_NAMESPACE` | No | trigger | Deploy registry namespace. | | `DEPLOY_IMAGE_PLATFORM` | No | linux/amd64 | Deploy image platform, same values as docker `--platform` flag. | | `DEPLOY_TIMEOUT_MS` | No | 480000 (8m) | Deploy timeout (ms). | | **Object store (S3)** | | | | | `OBJECT_STORE_BASE_URL` | No | — | Object store base URL. | | `OBJECT_STORE_ACCESS_KEY_ID` | No | — | Object store access key. | | `OBJECT_STORE_SECRET_ACCESS_KEY` | No | — | Object store secret key. | | `OBJECT_STORE_REGION` | No | — | Object store region. | | `OBJECT_STORE_SERVICE` | No | s3 | Object store service. | | **Alerts** | | | | | `ORG_SLACK_INTEGRATION_CLIENT_ID` | No | — | Slack client ID. Required for Slack alerts. | | `ORG_SLACK_INTEGRATION_CLIENT_SECRET` | No | — | Slack client secret. Required for Slack alerts. | | `ALERT_EMAIL_TRANSPORT` | No | — | Alert email transport. | | `ALERT_FROM_EMAIL` | No | — | Alert from email. | | `ALERT_REPLY_TO_EMAIL` | No | — | Alert reply-to email. | | `ALERT_RESEND_API_KEY` | No | — | Alert Resend API key. | | `ALERT_SMTP_HOST` | No | — | Alert SMTP host. | | `ALERT_SMTP_PORT` | No | — | Alert SMTP port. | | `ALERT_SMTP_SECURE` | No | — | Alert SMTP secure. | | `ALERT_SMTP_USER` | No | — | Alert SMTP user. | | `ALERT_SMTP_PASSWORD` | No | — | Alert SMTP password. | | **Limits** | | | | | `TASK_PAYLOAD_OFFLOAD_THRESHOLD` | No | 524288 (512KB) | Max task payload size before offloading to S3. | | `TASK_PAYLOAD_MAXIMUM_SIZE` | No | 3145728 (3MB) | Max task payload size. | | `BATCH_TASK_PAYLOAD_MAXIMUM_SIZE` | No | 1000000 (1MB) | Max batch payload size. | | `TASK_RUN_METADATA_MAXIMUM_SIZE` | No | 262144 (256KB) | Max metadata size. | | `MAX_BATCH_V2_TRIGGER_ITEMS` | No | 500 | Max batch size (legacy v2 API). | | `STREAMING_BATCH_MAX_ITEMS` | No | 1000 | Max items in streaming batch (v3 API, requires SDK 4.3.1+). | | `STREAMING_BATCH_ITEM_MAXIMUM_SIZE` | No | 3145728 (3MB) | Max size per item in streaming batch. | | `MAXIMUM_DEV_QUEUE_SIZE` | No | — | Max dev queue size. | | `MAXIMUM_DEPLOYED_QUEUE_SIZE` | No | — | Max deployed queue size. | | **OTel limits** | | | | | `TRIGGER_OTEL_SPAN_ATTRIBUTE_COUNT_LIMIT` | No | 1024 | OTel span attribute count limit. | | `TRIGGER_OTEL_LOG_ATTRIBUTE_COUNT_LIMIT` | No | 1024 | OTel log attribute count limit. | | `TRIGGER_OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT` | No | 131072 | OTel span attribute value length limit. | | `TRIGGER_OTEL_LOG_ATTRIBUTE_VALUE_LENGTH_LIMIT` | No | 131072 | OTel log attribute value length limit. | | `TRIGGER_OTEL_SPAN_EVENT_COUNT_LIMIT` | No | 10 | OTel span event count limit. | | `TRIGGER_OTEL_LINK_COUNT_LIMIT` | No | 2 | OTel link count limit. | | `TRIGGER_OTEL_ATTRIBUTE_PER_LINK_COUNT_LIMIT` | No | 10 | OTel attribute per link count limit. | | `TRIGGER_OTEL_ATTRIBUTE_PER_EVENT_COUNT_LIMIT` | No | 10 | OTel attribute per event count limit. | | `SERVER_OTEL_SPAN_ATTRIBUTE_VALUE_LENGTH_LIMIT` | No | 8192 | OTel span attribute value length limit. | | **Realtime** | | | | | `REALTIME_STREAM_MAX_LENGTH` | No | 1000 | Realtime stream max length. | | `REALTIME_STREAM_TTL` | No | 86400 (1d) | Realtime stream TTL (s). | | **Bootstrap** | | | | | `TRIGGER_BOOTSTRAP_ENABLED` | No | 0 | Trigger bootstrap enabled. | | `TRIGGER_BOOTSTRAP_WORKER_GROUP_NAME` | No | — | Trigger bootstrap worker group name. | | `TRIGGER_BOOTSTRAP_WORKER_TOKEN_PATH` | No | — | Trigger bootstrap worker token path. | | **Run engine** | | | | | `RUN_ENGINE_WORKER_COUNT` | No | 4 | Run engine worker count. | | `RUN_ENGINE_TASKS_PER_WORKER` | No | 10 | Run engine tasks per worker. | | `RUN_ENGINE_WORKER_CONCURRENCY_LIMIT` | No | 10 | Run engine worker concurrency limit. | | `RUN_ENGINE_WORKER_POLL_INTERVAL` | No | 100 | Run engine worker poll interval (ms). | | `RUN_ENGINE_WORKER_IMMEDIATE_POLL_INTERVAL` | No | 100 | Run engine worker immediate poll interval (ms). | | `RUN_ENGINE_WORKER_SHUTDOWN_TIMEOUT_MS` | No | 60000 (1m) | Run engine worker shutdown timeout (ms). | | `RUN_ENGINE_RATE_LIMIT_REFILL_INTERVAL` | No | 10s | Run engine rate limit refill interval. | | `RUN_ENGINE_RATE_LIMIT_MAX` | No | 1200 | Run engine rate limit max. | | `RUN_ENGINE_RATE_LIMIT_REFILL_RATE` | No | 400 | Run engine rate limit refill rate. | | `RUN_ENGINE_RATE_LIMIT_REQUEST_LOGS_ENABLED` | No | 0 | Run engine rate limit request logs. | | `RUN_ENGINE_RATE_LIMIT_REJECTION_LOGS_ENABLED` | No | 1 | Run engine rate limit rejection logs. | | `RUN_ENGINE_RATE_LIMIT_LIMITER_LOGS_ENABLED` | No | 0 | Run engine rate limit limiter logs. | | `RUN_ENGINE_DEFAULT_MAX_TTL` | No | — | Maximum TTL for all runs (e.g. "14d"). Runs without a TTL use this as default; runs with a larger TTL are clamped. | | `MAXIMUM_DEV_QUEUE_SIZE` | No | — | Maximum queued runs per queue in development environments. | | `MAXIMUM_DEPLOYED_QUEUE_SIZE` | No | — | Maximum queued runs per queue in deployed (staging/prod) environments. | | **Misc** | | | | | `TRIGGER_TELEMETRY_DISABLED` | No | — | Disable telemetry. | | `NODE_MAX_OLD_SPACE_SIZE` | No | 8192 | Maximum memory allocation for Node.js heap in MiB (e.g. "4096" for 4GB). | | `OPENAI_API_KEY` | No | — | OpenAI API key. | | `MACHINE_PRESETS_OVERRIDE_PATH` | No | — | Path to machine presets override file. See [machine overrides](/self-hosting/overview#machine-overrides). | | `APP_ENV` | No | `NODE_ENV` | App environment. Used for things like the title tag. | | `ADMIN_EMAILS` | No | — | Regex of user emails to automatically promote to admin on signup. Does not apply to existing users. | | `EVENT_LOOP_MONITOR_ENABLED` | No | 1 | Node.js event loop lag monitor. |