Environment variables

Variable	Type	Required	Default	Description
NODE_ENV	string	optional	production	Possible values are development or production
PORT	number	optional	3000
TURBO_TOKEN	string	optional		Secret token used for the authentication. Required if AUTH_MODE is undefined or static. You can specify multiple tokens separated by comma (e.g. TURBO_TOKEN=token1,token2,token3). The value must be the same one provided for the token parameter of the build script. See enable custom remote caching in a Turborepo monorepo
AUTH_MODE	string	optional	static	Which authentication mode to use, possible values are static, jwt or none
JWKS_URL	string	optional		JWKS metadata url for retrieving public keys for verifying JWTs
JWT_ISSUER	string	optional		JWT Issuer, optional even if using JWT authentication, to match iss field in JWT.
JWT_AUDIENCE	string	optional		JWT Audience, optional even if using JWT authentication, to match aud field in JWT.
JWT_READ_SCOPES	string	optional		If specified, one of the scopes listed here must be present in order to read from the cache. You can specify multiple options with a comma-delimited string of scopes.
JWT_WRITE_SCOPES	string	optional		If specified, one of the scopes listed here must be present in order to write to the cache. You can specify multiple options with a comma-delimited string of scopes.
LOG_LEVEL	string	optional	'info'	Possibile values are one of these
ENABLE_STATUS_LOG	boolean	optional	'true'	Enable/Disable logging for the status endpoint
LOG_MODE	string	optional	stdout	Setting it to ‘file’ enables writing logs to file
LOG_FILE	string	optional	server.log	Path and file name where save .log file (e.g. /path/to/my/file.log)
STORAGE_PROVIDER	string	optional	local	Possible values are local, s3, google-cloud-storage or azure-blob-storage. Use this var to choose the storage provider.
STORAGE_PATH	string	optional		Caching folder under /tmp if STORAGE_PROVIDER is set to local. If STORAGE_PROVIDER is set to s3, google-cloud-storage or azure-blob-storage, this will be the name of the bucket.
STORAGE_PATH_USE_TMP_FOLDER	boolean	optional	true	Uses the system tmp folder as a prefix to STORAGE_PATH
BODY_LIMIT	number	optional	104857600	The limit for artifact upload size
HTTP2	boolean	optional	'false'	If set to true, the server will use the HTTP/2 protocol, which helps bypass the 32MB payload size limit in Cloud Run
SSL_KEY_PATH	string	optional	``	If set, enables HTTPS using the key file at the specified path.
SSL_CERT_PATH	string	optional	``	If set, enables HTTPS using the certificate file at the specified path.
TURBO_REMOTE_CACHE_SIGNATURE_KEY	string	optional		A secret key used to sign and verify remote cache artifacts. Must be the same for the Turborepo client and the cache server. See Artifact Integrity and Authenticity Verification for more info.

Both SSL_KEY_PATH and SSL_CERT_PATH must be set to enable HTTPS.