Storage and programs

Each of these is a variable, read when the server starts. The System tab of Settings shows the value in effect.

Setting	Variable	Settings key	Default	Values	What it does	Changes
Data directory	DEZFIL_DATA_DIR		./data; /data in the container	A folder path	The single durable directory for tables, tiles and metadata.	By variable, after a restart
Encryption key	DEZFIL_SECRET_KEY		generated	64 hex characters (32 bytes)	The key that encrypts saved connection passwords and service addresses.	By variable, after a restart
Tile builder	DEZFIL_TIPPECANOE		tippecanoe	A program name, looked up on PATH, or a path to the program	The program that builds vector tiles.	By variable, after a restart
Image renderer	DEZFIL_CHROMIUM_PATH		/usr/bin/chromium	A path to a headless Chromium or Chrome	The headless browser that draws image exports and map pictures.	By variable, after a restart

• Without DEZFIL_SECRET_KEY, Dezfil makes a key the first time it needs one, such as when someone saves a connection password, and keeps it as secret.key in the data folder. Until then, System shows Not created yet. With a lost or changed key, Dezfil cannot read the saved connection passwords and service addresses. Back it up with the data, as Back up and restore says.
• The image ships the tile builder and the image renderer where these defaults find them.
• The data folder also holds the optional model catalogue file: see Offer other models.

Configuration shows how to set a variable.