Rename interface to device in netclass collector (#1224)

* Rename interface to device in netclass collector

This makes it consistent with other networking metrics like node_network_receive_bytes_total

This closes #1223 

Signed-off-by: Johannes 'fish' Ziemke <github@freigeist.org>

3 files changed, 26 insertions, 23 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index b3c464d..7d95bc2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,11 +2,14 @@
 
 ### **Breaking changes**
 
-The cpufreq metrics now separate the `cpufreq` and `scaling` data based on what the driver provides. #1248
+* Renamed `interface` label to `device` in netclass collector for consistency with
+  other network metrics #1224
+* The cpufreq metrics now separate the `cpufreq` and `scaling` data based on what the driver provides. #1248
 
 ### Changes
 
 * [BUGFIX]
+* [CHANGE] Renamed `interface` label to `device` in netclass collector #1224
 * [BUGFIX] Add fallback for missing /proc/1/mounts #1172
 * [CHANGE] Add TCPSynRetrans to netstat default filter #1143
 * [CHANGE] Add a limit to the number of in-flight requests #1166
diff --git a/collector/fixtures/e2e-output.txt b/collector/fixtures/e2e-output.txt
index ba11e23..2f9e097 100644
--- a/collector/fixtures/e2e-output.txt
+++ b/collector/fixtures/e2e-output.txt
@@ -1804,49 +1804,49 @@ node_netstat_Udp_NoPorts 120
 node_netstat_Udp_OutDatagrams 53028
 # HELP node_network_address_assign_type address_assign_type value of /sys/class/net/<iface>.
 # TYPE node_network_address_assign_type gauge
-node_network_address_assign_type{interface="eth0"} 3
+node_network_address_assign_type{device="eth0"} 3
 # HELP node_network_carrier carrier value of /sys/class/net/<iface>.
 # TYPE node_network_carrier gauge
-node_network_carrier{interface="eth0"} 1
+node_network_carrier{device="eth0"} 1
 # HELP node_network_carrier_changes_total carrier_changes_total value of /sys/class/net/<iface>.
 # TYPE node_network_carrier_changes_total counter
-node_network_carrier_changes_total{interface="eth0"} 2
+node_network_carrier_changes_total{device="eth0"} 2
 # HELP node_network_carrier_down_changes_total carrier_down_changes_total value of /sys/class/net/<iface>.
 # TYPE node_network_carrier_down_changes_total counter
-node_network_carrier_down_changes_total{interface="eth0"} 1
+node_network_carrier_down_changes_total{device="eth0"} 1
 # HELP node_network_carrier_up_changes_total carrier_up_changes_total value of /sys/class/net/<iface>.
 # TYPE node_network_carrier_up_changes_total counter
-node_network_carrier_up_changes_total{interface="eth0"} 1
+node_network_carrier_up_changes_total{device="eth0"} 1
 # HELP node_network_device_id device_id value of /sys/class/net/<iface>.
 # TYPE node_network_device_id gauge
-node_network_device_id{interface="eth0"} 32
+node_network_device_id{device="eth0"} 32
 # HELP node_network_dormant dormant value of /sys/class/net/<iface>.
 # TYPE node_network_dormant gauge
-node_network_dormant{interface="eth0"} 1
+node_network_dormant{device="eth0"} 1
 # HELP node_network_flags flags value of /sys/class/net/<iface>.
 # TYPE node_network_flags gauge
-node_network_flags{interface="eth0"} 4867
+node_network_flags{device="eth0"} 4867
 # HELP node_network_iface_id iface_id value of /sys/class/net/<iface>.
 # TYPE node_network_iface_id gauge
-node_network_iface_id{interface="eth0"} 2
+node_network_iface_id{device="eth0"} 2
 # HELP node_network_iface_link iface_link value of /sys/class/net/<iface>.
 # TYPE node_network_iface_link gauge
-node_network_iface_link{interface="eth0"} 2
+node_network_iface_link{device="eth0"} 2
 # HELP node_network_iface_link_mode iface_link_mode value of /sys/class/net/<iface>.
 # TYPE node_network_iface_link_mode gauge
-node_network_iface_link_mode{interface="eth0"} 1
+node_network_iface_link_mode{device="eth0"} 1
 # HELP node_network_mtu_bytes mtu_bytes value of /sys/class/net/<iface>.
 # TYPE node_network_mtu_bytes gauge
-node_network_mtu_bytes{interface="eth0"} 1500
+node_network_mtu_bytes{device="eth0"} 1500
 # HELP node_network_name_assign_type name_assign_type value of /sys/class/net/<iface>.
 # TYPE node_network_name_assign_type gauge
-node_network_name_assign_type{interface="eth0"} 2
+node_network_name_assign_type{device="eth0"} 2
 # HELP node_network_net_dev_group net_dev_group value of /sys/class/net/<iface>.
 # TYPE node_network_net_dev_group gauge
-node_network_net_dev_group{interface="eth0"} 0
+node_network_net_dev_group{device="eth0"} 0
 # HELP node_network_protocol_type protocol_type value of /sys/class/net/<iface>.
 # TYPE node_network_protocol_type gauge
-node_network_protocol_type{interface="eth0"} 1
+node_network_protocol_type{device="eth0"} 1
 # HELP node_network_receive_bytes_total Network device statistic receive_bytes.
 # TYPE node_network_receive_bytes_total counter
 node_network_receive_bytes_total{device="docker0"} 6.4910168e+07
@@ -1945,7 +1945,7 @@ node_network_receive_packets_total{device="wlan0"} 1.3899359e+07
 node_network_receive_packets_total{device="💩0"} 105557
 # HELP node_network_speed_bytes speed_bytes value of /sys/class/net/<iface>.
 # TYPE node_network_speed_bytes gauge
-node_network_speed_bytes{interface="eth0"} 1.25e+08
+node_network_speed_bytes{device="eth0"} 1.25e+08
 # HELP node_network_transmit_bytes_total Network device statistic transmit_bytes.
 # TYPE node_network_transmit_bytes_total counter
 node_network_transmit_bytes_total{device="docker0"} 2.681662018e+09
@@ -2044,10 +2044,10 @@ node_network_transmit_packets_total{device="wlan0"} 1.17262e+07
 node_network_transmit_packets_total{device="💩0"} 304261
 # HELP node_network_transmit_queue_length transmit_queue_length value of /sys/class/net/<iface>.
 # TYPE node_network_transmit_queue_length gauge
-node_network_transmit_queue_length{interface="eth0"} 1000
-# HELP node_network_up Valid operstate for interface.
+node_network_transmit_queue_length{device="eth0"} 1000
+# HELP node_network_up Valid operstate for device.
 # TYPE node_network_up gauge
-node_network_up{address="01:01:01:01:01:01",broadcast="ff:ff:ff:ff:ff:ff",duplex="full",ifalias="",interface="eth0",operstate="up"} 1
+node_network_up{address="01:01:01:01:01:01",broadcast="ff:ff:ff:ff:ff:ff",device="eth0",duplex="full",ifalias="",operstate="up"} 1
 # HELP node_nf_conntrack_entries Number of currently allocated flow entries for connection tracking.
 # TYPE node_nf_conntrack_entries gauge
 node_nf_conntrack_entries 123
diff --git a/collector/netclass_linux.go b/collector/netclass_linux.go
index a71f302..fffbd84 100644
--- a/collector/netclass_linux.go
+++ b/collector/netclass_linux.go
@@ -57,8 +57,8 @@ func (c *netClassCollector) Update(ch chan<- prometheus.Metric) error {
         for _, ifaceInfo := range netClass {
                 upDesc := prometheus.NewDesc(
                         prometheus.BuildFQName(namespace, c.subsystem, "up"),
-                        "Valid operstate for interface.",
-                        []string{"interface", "address", "broadcast", "duplex", "operstate", "ifalias"},
+                        "Valid operstate for device.",
+                        []string{"device", "address", "broadcast", "duplex", "operstate", "ifalias"},
                         nil,
                 )
                 upValue := 0.0
@@ -145,7 +145,7 @@ func pushMetric(ch chan<- prometheus.Metric, subsystem string, name string, valu
         fieldDesc := prometheus.NewDesc(
                 prometheus.BuildFQName(namespace, subsystem, name),
                 fmt.Sprintf("%s value of /sys/class/net/<iface>.", name),
-                []string{"interface"},
+                []string{"device"},
                 nil,
         )