Back up DynamoDB versions table

[achave11-ucsc]

Enable https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/dynamodb_table#point_in_time_recovery

This can be used to restore a deleted table to the time the table was deleted.

• [x] Security design review completed; the Resolution of this issue does not …
  • [x] … affect authentication; for example:
  • OAuth 2.0 with the application (API or Swagger UI)
  • Authentication of developers with Google Cloud APIs
  • Authentication of developers with AWS APIs
  • Authentication with a GitLab instance in the system
  • Password and 2FA authentication with GitHub
  • API access token authentication with GitHub
  • Authentication with
  • [x] … affect the permissions of internal users like access to
  • Cloud resources on AWS and GCP
  • GitLab repositories, projects and groups, administration
  • an EC2 instance via SSH
  • GitHub issues, pull requests, commits, commit statuses, wikis, repositories, organizations
  • [x] … affect the permissions of external users like access to
  • TDR snapshots
  • [x] … affect permissions of service or bot accounts
  • Cloud resources on AWS and GCP
  • [x] … affect audit logging in the system, like
  • adding, removing or changing a log message that represents an auditable event
  • changing the routing of log messages through the system
  • [x] … affect monitoring of the system
  • [x] … introduce a new software dependency like
  • Python packages on PYPI
  • Command-line utilities
  • Docker images
  • Terraform providers
  • [x] … add an interface that exposes sensitive or confidential data at the security boundary
  • [x] … affect the encryption of data at rest
  • [x] … require persistence of sensitive or confidential data that might require encryption at rest
  • [x] … require unencrypted transmission of data within the security boundary
  • [x] … affect the network security layer; for example by
  • modifying, adding or removing firewall rules
  • modifying, adding or removing security groups
  • changing or adding a port a service, proxy or load balancer listens on
• [x] Documentation on any unchecked boxes is provided in comments below

[hannes-ucsc]

For demo, delete the table in a personal deployment and restore it again from the system backup.