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Krzysztof Skrzętnicki 8a8537355b Database objects periodic import (#43790)
* Add periodic import of database objects from supported databases.

A single implementation is included: for Postgres, along with necessary changes.

Also refactors SQLAdminClient interface to accept cert expiry instead of pulling that information from `tlsca.Identity`.

* fix logging, imports

* add missing license

* review feedback
- several minor changes
- apply import rules for all registered object fetchers using wrapper type
- refactor DAC to use object fetcher
- adjust tests

* add comment and missing log call

* support config overrides through unstable env vars, including disabling the service entirely

* refactoring and minor changes

- be more specific about required API for ObjectFetcherConfig
- measure scan time
- bump default scan interval
- call StopImporter from stopDatabase to fix issue with dynamic db resource updates
- add comments

* Refactor `connectAsAdmin`, add `withDefaultDatabase()` method for clarity of implementation.

* Reduce surface area for fetcher config

* make the not-implemented case less noisy by skipping the error

* lint fix

* decrease verbosity of reporting for unsupported configurations

* make `reason` field private

* move `unregisterObjectFetcher` to tests

* avoid exceedingly long lines with log calls

* correct formatting leftover from slog conversion

* tighten logic around disabled importer

if the scan interval is zero or less, the importer becomes disabled, which avoids panic from interval.New().

add some tests and comments for clarity.

* drop unused method
2024-07-25 18:47:56 +00:00

41 lines
1.4 KiB
Go

// Teleport
// Copyright (C) 2024 Gravitational, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package objects
import "errors"
// ErrFetcherDisabled is a custom error that can be returned from fetcher constructor that will be reported with lower severity.
type ErrFetcherDisabled struct {
reason string
}
func (e ErrFetcherDisabled) Error() string {
return e.reason
}
// NewErrFetcherDisabled returns a new instance of ErrFetcherDisabled error.
func NewErrFetcherDisabled(reason string) *ErrFetcherDisabled {
return &ErrFetcherDisabled{reason: reason}
}
// IsErrFetcherDisabled returns true if the error is ErrFetcherDisabled.
func IsErrFetcherDisabled(err error) (bool, string) {
other := &ErrFetcherDisabled{}
matched := errors.As(err, &other)
return matched, other.reason
}