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Environment

Variable Purpose
CAUTEM_DRIVER docker (default) | podman
CAUTEM_PODMAN_SOCKET Explicit Podman API socket
DOCKER_HOST Engine API endpoint
CAUTEM_DEFAULT_MEMORY Soft create default when --memory unset
CAUTEM_DEFAULT_CPU Soft create default when --cpu unset
CAUTEM_SANDBOX_PIDS_LIMIT Gateway driver PIDs default (0 = unlimited)
CAUTEM_DOCKER_LOG_DRIVER json-file | none
CAUTEM_DOCKER_LOG_MAX_SIZE json-file max-size (default 10m)
CAUTEM_DOCKER_LOG_MAX_FILE json-file max-file (default 3)
CAUTEM_SECRETS_KEK Gateway secrets key
OPENSHELL_LOG_LEVEL Gateway daemon log level

Config file: ~/.config/cautem/config.yaml (defaults:, images:, gateways).