Prometheus bad units export

[nicola-strappazzon]

Error gathering metrics: 7 error(s) occurred:

• collected metric zenit_os
  label:<name:"device" value:"/dev/xvda1" >
  label:<name:"name" value:"disk" >
  untyped:<value:7.48 >
  has label dimensions inconsistent with previously collected metrics in the same metric family

• collected metric zenit_os
  label:<name:"device" value:"lo" >
  label:<name:"name" value:"net" >
  label:<name:"type" value:"receive" >
  untyped:<value:2.62588484339e+12 >
  has label dimensions inconsistent with previously collected metrics in the same metric family

• collected metric zenit_os
  label:<name:"device" value:"lo" >
  label:<name:"name" value:"net" >
  label:<name:"type" value:"transmit" >
  untyped:<value:2.62588484339e+12 >
  has label dimensions inconsistent with previously collected metrics in the same metric family

• collected metric zenit_os
  label:<name:"device" value:"eth0" >
  label:<name:"name" value:"net" >
  label:<name:"type" value:"receive" >
  untyped:<value:5.31028131819e+12 >
  has label dimensions inconsistent with previously collected metrics in the same metric family

• collected metric zenit_os
  label:<name:"device" value:"eth0" >
  label:<name:"name" value:"net" >
  label:<name:"type" value:"transmit" >
  untyped:<value:5.345703981086e+12 >
  has label dimensions inconsistent with previously collected metrics in the same metric family

• collected metric zenit_os
  label:<name:"name" value:"sysctl" >
  label:<name:"type" value:"nr_open" >
  untyped:<value:1.048576e+06 >
  has label dimensions inconsistent with previously collected metrics in the same metric family

• collected metric zenit_os
  label:<name:"name" value:"sysctl" >
  label:<name:"type" value:"file_max" >
  untyped:<value:382744 >
  has label dimensions inconsistent with previously collected metrics in the same metric family

Adapt all metrics to this standard: https://prometheus.io/docs/practices/naming/