feat(cgroups.plugin): add k8s_qos_class label (#12737)

* add k8s_qos_class label

* simplify

1 files changed, 9 insertions, 0 deletions

diff --git a/collectors/cgroups.plugin/cgroup-name.sh.in b/collectors/cgroups.plugin/cgroup-name.sh.in
index 1f31c49a73..0911df4313 100755
--- a/collectors/cgroups.plugin/cgroup-name.sh.in
+++ b/collectors/cgroups.plugin/cgroup-name.sh.in
@@ -273,12 +273,20 @@ function k8s_get_kubepod_name() {
     return 1
   fi
 
+  local qos_class
+  if [[ $clean_id =~ .+(besteffort|burstable) ]]; then
+    qos_class="${BASH_REMATCH[1]}"
+  else
+    qos_class="guaranteed"
+  fi
+
   # available labels:
   # namespace, pod_name, pod_uid, container_name, container_id, node_name
   local labels
   if [ -n "$cntr_id" ]; then
     if labels=$(grep "$cntr_id" <<< "$containers" 2> /dev/null); then
       labels+=',kind="container"'
+      labels+=",qos_class=\"$qos_class\""
       [ -n "$kube_system_uid" ] && [ "$kube_system_uid" != "null" ] && labels+=",cluster_id=\"$kube_system_uid\""
       name="cntr"
       name+="_$(get_lbl_val "$labels" namespace)"
@@ -291,6 +299,7 @@ function k8s_get_kubepod_name() {
     if labels=$(grep "$pod_uid" -m 1 <<< "$containers" 2> /dev/null); then
       labels="${labels%%,container_*}"
       labels+=',kind="pod"'
+      labels+=",qos_class=\"$qos_class\""
       [ -n "$kube_system_uid" ] && [ "$kube_system_uid" != "null" ] && labels+=",cluster_id=\"$kube_system_uid\""
       name="pod"
       name+="_$(get_lbl_val "$labels" namespace)"