Try to create metrics root directory if missing
Try to create metrics root directory if missing

This change tries to be nice and create the metrics directoy first
before erroring out.

Change-Id: I72691cdc32469708cd671c6ef1fb7db55fe60430

wndhydrnt/prometheus,prasincs/prometheus,wrouesnel/prometheus,amorken/prometheus,abhishekamralkar/prometheus,fabric8io/prometheus,AlekSi/prometheus,eliothedeman/prometheus,msiebuhr/prometheus,mrwacky42/prometheus,Colstuwjx/prometheus,Dieterbe/prometheus,nicr9/prometheus,bluecmd/prometheus,keegancsmith/prometheus,sudhi-vm/prometheus,GoogleCloudPlatform/prometheus,fabric8io/prometheus,justintung/prometheus,gesellix/prometheus,nicr9/prometheus,justintung/prometheus,RobertKielty/prometheus,mtanda/prometheus,wxdublin/prometheus,PrFalken/prometheus,ton31337/prometheus,Colstuwjx/prometheus,rajthilakmca/prometheus,dpatel06/prometheus,mtanda/prometheus,msiebuhr/prometheus,slok/prometheus,dpatel06/prometheus,sudhi-vm/prometheus,flier/prometheus,jimmidyson/prometheus,fabxc/prometheus,mrwacky42/prometheus,cit-lab/prometheus,mtanda/prometheus,robbiet480/prometheus,JavierZunzunegui/prometheus,agaoglu/prometheus,amorken/prometheus,SaltedMan/prometheus-annotated,dmilstein/prometheus,rajthilakmca/prometheus,thachmai/prometheus,sudhi-vm/prometheus,brancz/prometheus,brian-brazil/prometheus,cit-lab/prometheus,RobertKielty/prometheus,thachmai/prometheus,gesellix/prometheus,tomwilkie/prometheus,kangwoo/prometheus,hustbill/prometheus,jimmidyson/prometheus,prometheus/prometheus,datajet-io/prometheus,dsymonds/prometheus,Gouthamve/prometheus,agaoglu/prometheus,tomwilkie/prometheus,dln/prometheus,prasincs/prometheus,Dieterbe/prometheus,AlekSi/prometheus,Conorbro/prometheus,msiebuhr/prometheus,yanghongkjxy/prometheus,SaltedMan/prometheus-annotated,mtanda/prometheus,kangwoo/prometheus,prometheus/prometheus,thachmai/prometheus,SaltedMan/prometheus-annotated,RobertKielty/prometheus,keegancsmith/prometheus,wxdublin/prometheus,eliothedeman/prometheus,gcnonato/prometheus,jbdalido/prometheus,bluecmd/prometheus,gottwald/prometheus,jimmidyson/prometheus,smyrman/prometheus,SaltedMan/prometheus-annotated,smyrman/prometheus,datajet-io/prometheus,jbdalido/prometheus,kzittritsch/prometheus,rajthilakmca/prometheus,wndhydrnt/prometheus,JavierZunzunegui/prometheus,PrFalken/prometheus,GoogleCloudPlatform/prometheus,fabxc/prometheus,slok/prometheus,alileza/prometheus,dsymonds/prometheus,Gouthamve/prometheus,dln/prometheus,dalanlan/prometheus,dmilstein/prometheus,trigrass2/prometheus,abhishekamralkar/prometheus,iksaif/prometheus,flier/prometheus,robbiet480/prometheus,wrouesnel/prometheus,wxdublin/prometheus,jmcfarlane/prometheus,jbdalido/prometheus,jbdalido/prometheus,tattsun/prometheus,fabxc/prometheus,adamron1/prometheus,cit-lab/prometheus,yanghongkjxy/prometheus,GoogleCloudPlatform/prometheus,dln/prometheus,slok/prometheus,jmcfarlane/prometheus,brian-brazil/prometheus,alileza/prometheus,amorken/prometheus,gottwald/prometheus,AlekSi/prometheus,q3k/prometheus,trigrass2/prometheus,trigrass2/prometheus,Conorbro/prometheus,ton31337/prometheus,thachmai/prometheus,fabric8io/prometheus,gcnonato/prometheus,keegancsmith/prometheus,alileza/prometheus,robbiet480/prometheus,dsymonds/prometheus,gcnonato/prometheus,tomwilkie/prometheus,Conorbro/prometheus,gottwald/prometheus,Colstuwjx/prometheus,fabric8io/prometheus,Stackdriver/stackdriver-prometheus,Gouthamve/prometheus,dln/prometheus,amorken/prometheus,iksaif/prometheus,adamron1/prometheus,bluecmd/prometheus,ton31337/prometheus,tomwilkie/prometheus,tattsun/prometheus,datajet-io/prometheus,alileza/prometheus,dalanlan/prometheus,brian-brazil/prometheus,justintung/prometheus,eliothedeman/prometheus,yanghongkjxy/prometheus,flier/prometheus,eliothedeman/prometheus,laushinka/prometheus,hustbill/prometheus,sudhi-vm/prometheus,keegancsmith/prometheus,jmcfarlane/prometheus,kangwoo/prometheus,brancz/prometheus,prometheus/prometheus,kzittritsch/prometheus,keegancsmith/prometheus,wndhydrnt/prometheus,jmcfarlane/prometheus,iksaif/prometheus,PrFalken/prometheus,GoogleCloudPlatform/prometheus,tattsun/prometheus,abhishekamralkar/prometheus,laushinka/prometheus,kangwoo/prometheus,Conorbro/prometheus,adamron1/prometheus,q3k/prometheus,abhishekamralkar/prometheus,prometheus/prometheus,PrFalken/prometheus,dalanlan/prometheus,gcnonato/prometheus,q3k/prometheus,justintung/prometheus,hustbill/prometheus,brancz/prometheus,prasincs/prometheus,datajet-io/prometheus,prasincs/prometheus,mrwacky42/prometheus,hustbill/prometheus,Gouthamve/prometheus,smyrman/prometheus,rajthilakmca/prometheus,AlekSi/prometheus,adamron1/prometheus,msiebuhr/prometheus,gesellix/prometheus,agaoglu/prometheus,Dieterbe/prometheus,tattsun/prometheus,JavierZunzunegui/prometheus,gottwald/prometheus,yanghongkjxy/prometheus,prometheus/prometheus,fabxc/prometheus,Stackdriver/stackdriver-prometheus,brancz/prometheus,laushinka/prometheus,gesellix/prometheus,iksaif/prometheus,nicr9/prometheus,Stackdriver/stackdriver-prometheus,kzittritsch/prometheus,dmilstein/prometheus,ton31337/prometheus,GoogleCloudPlatform/prometheus,smyrman/prometheus,dpatel06/prometheus,Colstuwjx/prometheus,wrouesnel/prometheus,cit-lab/prometheus,Stackdriver/stackdriver-prometheus,JavierZunzunegui/prometheus,slok/prometheus,dsymonds/prometheus,trigrass2/prometheus,kzittritsch/prometheus,q3k/prometheus,agaoglu/prometheus,RobertKielty/prometheus,laushinka/prometheus,dmilstein/prometheus,alileza/prometheus,robbiet480/prometheus,bluecmd/prometheus,wrouesnel/prometheus