Are any data or settings from previous deployments preserved when deploying a new environment or updating the system?

When deploying a new environment or updating a system, saving data and settings depends on the specific process and tools used.

• Containers (e.g., Docker): When creating a new container, data inside it is not saved after deletion unless volumes are used to store data outside the container.
• System update: Usually, system updates preserve user data and settings but may modify configuration files if necessary.
• Infrastructure as code: When automatically deploying an environment from scratch, all settings and data are recreated unless a state preservation mechanism is provided (e.g., through databases, storage).

Therefore, to preserve data and settings, external storage, backups, or special state preservation mechanisms are typically used.