Environment variables
Configuration reference for all environment variables used by the Signet builder.
The Builder is configured via environment variables. The following values are supported for configuration.
| Key | Required | Description |
|---|---|---|
HOST_CHAIN_ID | Required | Host-chain ID (e.g. 3151908) |
RU_CHAIN_ID | Required | Rollup-chain ID (e.g. 88888) |
HOST_RPC_URL | Required | RPC endpoint for the host chain |
ROLLUP_RPC_URL | Required | RPC endpoint for the rollup chain |
TX_POOL_URL | Required | Transaction pool URL (must end with /) |
FLASHBOTS_ENDPOINT | Optional | When configured, the Builder will send Signet blocks to this URL as transaction bundles |
TX_BROADCAST_URLS | Optional | Additional endpoints for blob txs (comma-separated, slash required) |
ZENITH_ADDRESS | Required | Zenith contract address |
BUILDER_HELPER_ADDRESS | Required | Builder helper contract address |
QUINCEY_URL | Required | Remote sequencer signing endpoint |
BUILDER_PORT | Required | HTTP port for the Builder (default: 8080) |
SEQUENCER_KEY | Required | AWS KMS key ID or local private key for sequencer signing |
BUILDER_KEY | Required | AWS KMS key ID or local private key for builder signing |
BUILDER_REWARDS_ADDRESS | Required | Address receiving builder rewards |
ROLLUP_BLOCK_GAS_LIMIT | Optional | Override for block gas limit |
CONCURRENCY_LIMIT | Optional | Max concurrent tasks the simulator uses |
OAUTH_CLIENT_ID | Required | Oauth client ID for the builder |
OAUTH_CLIENT_SECRET | Required | Oauth client secret for the builder |
OAUTH_AUTHENTICATE_URL | Required | Oauth authenticate URL for the builder for performing OAuth logins |
OAUTH_TOKEN_URL | Required | Oauth token URL for the builder to get an Oauth2 access token |
AUTH_TOKEN_REFRESH_INTERVAL | Required | The OAuth token refresh interval in seconds. |
CHAIN_NAME | Required | The name of the chain (e.g. parmigiana) |