Make workers report their stastd metrics to prometheus exporter
And then:
$ kubectl exec -ti deployments/loaders-git -n ns-loaders-git -- curl prometheus-statsd-exporter.default:9102/metrics 2>&1 | grep swh | head -5 swh_loader_git_ignored_refs_percent_bucket{has_parent_origins="False",has_parent_snapshot="False",has_previous_snapshot="False",incremental_enabled="True",visit_type="git",le="0"} 107 swh_loader_git_ignored_refs_percent_bucket{has_parent_origins="False",has_parent_snapshot="False",has_previous_snapshot="False",incremental_enabled="True",visit_type="git",le="0.05"} 107 swh_loader_git_ignored_refs_percent_bucket{has_parent_origins="False",has_parent_snapshot="False",has_previous_snapshot="False",incremental_enabled="True",visit_type="git",le="0.1"} 107
Related to T4144