Class: Deploio::PostgresDatabaseBackupService

Inherits:
Object
  • Object
show all
Defined in:
lib/deploio/postgres_database_backup_service.rb

Overview

Backups for the economy tier (kind: PostgresDatabase), where the database lives on a shared server we have no access to. The naming is confusing, but this is how Nine names them and how the resources appear, so prefer to stay consistent with that

Constant Summary collapse

DEFAULT_EXTENSION = 
".sql.zst"
BACKUP_SCHEDULE_LABEL = 
"DatabaseBackupSchedule"

Instance Method Summary collapse

Constructor Details

#initialize(db_ref:, data:, nctl_client:, name: nil, rclone_client_factory: nil) ⇒ PostgresDatabaseBackupService

Returns a new instance of PostgresDatabaseBackupService.



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# File 'lib/deploio/postgres_database_backup_service.rb', line 13

def initialize(db_ref:, data:, nctl_client:, name: nil, rclone_client_factory: nil)
  @db_ref = db_ref
  @data = data || {}
  @nctl = nctl_client
  @name = name || db_ref.full_name
  @rclone_client_factory = rclone_client_factory || method(:build_rclone_client)
end

Instance Method Details

#backups ⇒ Object 



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# File 'lib/deploio/postgres_database_backup_service.rb', line 35

def backups
  @backups ||= begin
    entries = rclone.list(bucket_name)
    entries = entries.select { |e| own_backup?(e["Name"].to_s) }
    entries.sort_by { |e| e["ModTime"].to_s }.reverse
  end
end

#capture ⇒ Object

Nine takes these backups on a schedule (you can even see them using kubectl get databasebackupschedules.storage.nine.ch -n renuo-chess-tracker -o json) => there is no way to trigger one.

Raises:



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# File 'lib/deploio/postgres_database_backup_service.rb', line 28

def capture
  raise Deploio::UnsupportedBackupOperationError,
    "'#{@db_ref.full_name}' is an economy-tier database. Those are backed up automatically " \
    "on their configured schedule and cannot be captured manually.\n" \
    "Use 'deploio pg backups list #{@name}' to see the available backups."
end

#default_destination ⇒ Object 



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# File 'lib/deploio/postgres_database_backup_service.rb', line 21

def default_destination
  "./#{@name}-latest-backup#{DEFAULT_EXTENSION}"
end

#download(destination:, db_name: nil) ⇒ Object 



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# File 'lib/deploio/postgres_database_backup_service.rb', line 43

def download(destination:, db_name: nil)
  backup = backups.first
  unless backup
    raise Deploio::Error, "No backups found for '#{@db_ref.full_name}' in bucket '#{bucket_name}'."
  end

  rclone.download(bucket_name, backup["Name"], destination)
  backup
end