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Archive

Where the archive is written, and the key that encrypts it.

Setting	Engine default	Shipped	What it does
ARCHIVE_ENABLED	false	true	Writes the archive
S3_ENDPOINT_URL, S3_BUCKET, S3_REGION	empty, empty, nyc3	http://archive-store:8333, ememory-archive, us-east-1 (the bundled archive store)	Where the archive lives
ARCHIVE_DIR	empty	required	The absolute path of the host folder the bundled archive store writes to. It is bind-mounted, so it must exist before the first start
S3_ACCESS_KEY, S3_SECRET_KEY	empty	required	How the engine reaches the archive
S3_KEY_PREFIX	empty	—	A prefix for every object name, to share one bucket between stacks
ARCHIVE_KEY	empty	required	The archive encryption key (32 bytes, base64). Object bodies are encrypted with AES-256-GCM
ARCHIVE_READ_ONLY	false	—	Restores from the archive and never writes to it
RESTORE_FETCH_CONCURRENCY, RESTORE_FETCH_TIMEOUT_SECONDS	16, 30	—	How many archive objects a restore fetches at once, and how long one fetch may take