* tsdb: add support for setting debug flag of tsdb query
* alerting: adds debug flag in eval context
Debug flag is set when testing an alert rule and this debug
flag is used to return more debug information in test aler rule
response. This debug flag is also provided to tsdb queries so
datasources can optionally add support for returning additional
debug data
* alerting: improve test alert rule ui
Adds buttons for expand/collapse json and copy json to clipboard,
very similar to how the query inspector works.
* elasticsearch: implement support for tsdb query debug flag
* elasticsearch: embedding client response in struct
* alerting: return proper query model when testing rule
* tech(routines): move the async logic from notification to alerting notifier
* tech(notification): reduce code dupe
* fix(notification): dont touch the response unless its an error
* feat(alerting): make alerting exeuction async but flow sync
* tech(alerting): remove commented code
* tech(alerting): remove unused code
* tech(alerting): fix typo
* tech(alerting): implement Context on EvalContext
* tech(alerting): wait for all alerts to return
* feat(alerting): dont allow alert responses to cancel
* Revert "feat(alerting): dont allow alert responses to cancel"
This reverts commit 324b006c96.
* feat(alerting): give alerts some time to finish before closing down
