Allow importing data when the SurrealDB server starts

[geraname]

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What is the motivation?

To address uses cases that require that certain resources exist in the datastore when the server is started.

What does this change do?

This feature will import a file containing SurrealQL queries to the datastore with owner permissions on ROOT before the server is started. This feature functions similarly to the import sub-command. While the flag is present, the file will be imported every time that the server is started; this allows creating users, access methods and any other resources or data that clients may need to rely on. An informational message is logged on the server whenever data is imported from a file on start.

From a security perspective, this feature is used when starting the server and hence already requires complete access to the datastore, which is extended to the import file. On the other hand, this feature provides an alternative to the -u and -p flags that would create a root-level owner user when starting the server for the first time, allowing users to instead rely on more secure paswordless access methods, which can also be kept updated when restarting the server.

What is your testing strategy?

Implement integration tests for the basic import functionality, the effect on a restart in any imported resources, the creation of resources at different levels and the requirement of providing an existent file.

Is this related to any issues?

No.

Does this change need documentation?

Yes, this requires updating the CLI documentation for the start command.

Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines