| ANKA_BASE_PATH | (string) | Set the registry data’s base path | . |
| ANKA_GRACEFUL_SHUTDOWN_TIMEOUT | (duration) | The duration to wait for graceful shutdown when receiving SIGINT/SIGTERM | 10s |
| ANKA_IMAGE_DIR_PATH | (string) | Set the path to put images directory (relative to base) | images_dir |
| ANKA_LISTEN_ADDR | (string) | The address and port to listen on (format: “address:[port]”). | |
| ANKA_STATE_FILE_DIR_PATH | (string) | Set the path to put the state files directory (relative to base) | state_file_dir |
| ANKA_VM_DIR_PATH | (string) | Set the path to put vm directory (relative to base) | vm_dir |
| ANKA_VM_LIST_CACHE_TTL | (duration) | Template list cache TTL | 30s |
| ANKA_VM_LIST_CONCURRENCY | (int) | Template list concurrency | 10 |