Aleksandr Chudinov

Currently, trying to disable the next high-cardinality metrics using command-line argument --disable-metric keystone-identity_project_info neutron-subnet neutron-router neutron-port neutron-network neutron-l3_agent_of_router causes exporter crash with an error like this: ` /go/pkg/mod/github.com/prometheus/[email protected]/prometheus/registry.go:547 +0xbab created...

Add image_created_at metric

6

This change adds metric glance_image_created_at with unix timestamp of images creation dates. ``` # HELP openstack_glance_image_created_at image_created_at # TYPE openstack_glance_image_created_at gauge openstack_glance_image_created_at{id="781b3762-9469-4cec-b58d-3349e5de4e9c",name="F17-x86_64-cfntools",tenant_id="5ef70662f8b34079a6eddb8da9d75fe8",visibility="public",hidden="false"} 1.414657419e+09 openstack_glance_image_created_at{id="1bea47ed-f6a9-463b-b423-14b9cca9ad27",name="cirros-0.3.2-x86_64-disk",tenant_id="5ef70662f8b34079a6eddb8da9d75fe8",visibility="public",hidden="false"} 1.415380026e+09 ``` This allows to monitor...