Encryption: Use secrets service (#40251)

* Use secrets service in pluginproxy

* Use secrets service in pluginxontext

* Use secrets service in pluginsettings

* Use secrets service in provisioning

* Use secrets service in authinfoservice

* Use secrets service in api

* Use secrets service in sqlstore

* Use secrets service in dashboardshapshots

* Use secrets service in tsdb

* Use secrets service in datasources

* Use secrets service in alerting

* Use secrets service in ngalert

* Break cyclic dependancy

* Refactor service

* Break cyclic dependancy

* Add FakeSecretsStore

* Setup Secrets Service in sqlstore

* Fix

* Continue secrets service refactoring

* Fix cyclic dependancy in sqlstore tests

* Fix secrets service references

* Fix linter errors

* Add fake secrets service for tests

* Refactor SetupTestSecretsService

* Update setting up secret service in tests

* Fix missing secrets service in multiorg_alertmanager_test

* Use fake db in tests and sort imports

* Use fake db in datasources tests

* Fix more tests

* Fix linter issues

* Attempt to fix plugin proxy tests

* Pass secrets service to getPluginProxiedRequest in pluginproxy tests

* Fix pluginproxy tests

* Revert using secrets service in alerting and provisioning

* Update decryptFn in alerting migration

* Rename defaultProvider to currentProvider

* Use fake secrets service in alert channels tests

* Refactor secrets service test helper

* Update setting up secrets service in tests

* Revert alerting changes in api

* Add comments

* Remove secrets service from background services

* Convert global encryption functions into vars

* Revert "Convert global encryption functions into vars"

This reverts commit 498eb19859.

* Add feature toggle for envelope encryption

* Rename toggle

Co-authored-by: Emil Tullstedt <emil.tullstedt@grafana.com>
Co-authored-by: Joan López de la Franca Beltran <joanjan14@gmail.com>

pkg/services/encryption/ossencryption/ossencryption.go

@@ -14,6 +14,8 @@ import (
 	"golang.org/x/crypto/pbkdf2"
 )
 
+// Service must not be used for encryption,
+// use secrets.Service implementing envelope encryption instead.
 type Service struct{}
 
 func ProvideService() *Service {