Add CLI args for snapshot intervals (#2849)
Add CLI args for snapshot intervals (#2849)

* Add CLI args for snapshot intervals

Signed-off-by: sed-i <8cc97233a07f59d083d82b99a72fb9a62c424617@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Simon Pasquier <38e2d22e48be18381a59028f88390cad04670376@redhat.com>
Signed-off-by: sed-i <8cc97233a07f59d083d82b99a72fb9a62c424617@users.noreply.github.com>

* use same flag for silences and nflogs intervals

Signed-off-by: sed-i <8cc97233a07f59d083d82b99a72fb9a62c424617@users.noreply.github.com>

Co-authored-by: Simon Pasquier <38e2d22e48be18381a59028f88390cad04670376@redhat.com>
GoogleCloudPlatform/alertmanager,GoogleCloudPlatform/alertmanager,prometheus/alertmanager,GoogleCloudPlatform/alertmanager,prometheus/alertmanager,prometheus/alertmanager,GoogleCloudPlatform/alertmanager,prometheus/alertmanager