Add config hash metric (#751)
Add config hash metric (#751)


prometheus/alertmanager,tyrken/alertmanager,tinytub/alertmanager,tinytub/alertmanager,GoogleCloudPlatform/alertmanager,joehandzik/alertmanager,GoogleCloudPlatform/alertmanager,tyrken/alertmanager,Aloomaio/alertmanager,joehandzik/alertmanager,tinytub/alertmanager,Aloomaio/alertmanager,Kellel/alertmanager,prometheus/alertmanager,Aloomaio/alertmanager,GoogleCloudPlatform/alertmanager,prometheus/alertmanager,tyrken/alertmanager,prometheus/alertmanager,Kellel/alertmanager,Kellel/alertmanager,tyrken/alertmanager,joehandzik/alertmanager,GoogleCloudPlatform/alertmanager