Add priority class configuration for Kubeshark components (#1775)

* Add priority class into templates

* upd readme

* upd

---------

Co-authored-by: Alon Girmonsky <1990761+alongir@users.noreply.github.com>

config/configStructs/tapConfig.go

@@ -328,6 +328,7 @@ type TapConfig struct {
 	Tolerations                    TolerationsConfig       `yaml:"tolerations" json:"tolerations" default:"{}"`
 	Auth                           AuthConfig              `yaml:"auth" json:"auth"`
 	Ingress                        IngressConfig           `yaml:"ingress" json:"ingress"`
+	PriorityClass                  string                  `yaml:"priorityClass" json:"priorityClass" default:""`
 	Routing                        RoutingConfig           `yaml:"routing" json:"routing"`
 	IPv6                           bool                    `yaml:"ipv6" json:"ipv6" default:"true"`
 	Debug                          bool                    `yaml:"debug" json:"debug" default:"false"`

helm-chart/README.md

@@ -180,6 +180,7 @@ Example for overriding image names:
 | `tap.nodeSelectorTerms.workers`                   | Node selector terms for workers components                       | `[{"matchExpressions":[{"key":"kubernetes.io/os","operator":"In","values":["linux"]}]}]` |
 | `tap.nodeSelectorTerms.hub`                   | Node selector terms for hub component                 | `[{"matchExpressions":[{"key":"kubernetes.io/os","operator":"In","values":["linux"]}]}]` |
 | `tap.nodeSelectorTerms.front`                   | Node selector terms for front-end component                         | `[{"matchExpressions":[{"key":"kubernetes.io/os","operator":"In","values":["linux"]}]}]` |
+| `tap.priorityClass`                   | Priority class name for Kubeshark components                         | `""`                                                |
 | `tap.tolerations.workers`                  | Tolerations for workers components                         | `[ {"operator": "Exists", "effect": "NoExecute"}` |
 | `tap.tolerations.hub`                  | Tolerations for hub component                         | `[]` |
 | `tap.tolerations.front`                  | Tolerations for front-end component                         | `[]` |

helm-chart/templates/04-hub-deployment.yaml

@@ -25,6 +25,9 @@ spec:
     spec:
       dnsPolicy: ClusterFirstWithHostNet
       serviceAccountName: {{ include "kubeshark.serviceAccountName" . }}
+      {{- if .Values.tap.priorityClass }}
+      priorityClassName: {{ .Values.tap.priorityClass | quote }}
+      {{- end }}
       containers:
         - name: hub
           command:

helm-chart/templates/06-front-deployment.yaml

@@ -177,3 +177,6 @@ spec:
             name: kubeshark-nginx-config-map
       dnsPolicy: ClusterFirstWithHostNet
       serviceAccountName: {{ include "kubeshark.serviceAccountName" . }}
+      {{- if .Values.tap.priorityClass }}
+      priorityClassName: {{ .Values.tap.priorityClass | quote }}
+      {{- end }}

helm-chart/templates/09-worker-daemon-set.yaml

@@ -331,6 +331,9 @@ spec:
       dnsPolicy: ClusterFirstWithHostNet
       hostNetwork: true
       serviceAccountName: {{ include "kubeshark.serviceAccountName" . }}
+      {{- if .Values.tap.priorityClass }}
+      priorityClassName: {{ .Values.tap.priorityClass | quote }}
+      {{- end }}
       {{- if .Values.tap.tolerations.workers }}
       tolerations:
       {{- range .Values.tap.tolerations.workers }}

helm-chart/templates/18-cleanup-job.yaml

@@ -10,6 +10,9 @@ spec:
   template:
     spec:
       serviceAccountName: {{ include "kubeshark.serviceAccountName" . }}
+      {{- if .Values.tap.priorityClass }}
+      priorityClassName: {{ .Values.tap.priorityClass | quote }}
+      {{- end }}
       restartPolicy: Never
       containers:
         - name: cleanup
@@ -21,4 +24,4 @@ spec:
           image: '{{ .Values.tap.docker.registry }}/hub:{{ not (eq .Values.tap.docker.tag "") | ternary .Values.tap.docker.tag (include "kubeshark.defaultVersion" .) }}'
         {{- end }}
           command: ["/app/cleanup"]
-{{ end -}}
+{{ end -}}

helm-chart/templates/18-dex-deployment.yaml

@@ -106,5 +106,7 @@ spec:
             secretName: kubeshark-dex-conf-secret
       dnsPolicy: ClusterFirstWithHostNet
       serviceAccountName: {{ include "kubeshark.serviceAccountName" . }}
-
+      {{- if .Values.tap.priorityClass }}
+      priorityClassName: {{ .Values.tap.priorityClass | quote }}
+      {{- end }}
 {{- end }}

helm-chart/values.yaml

@@ -139,6 +139,7 @@ tap:
     host: ks.svc.cluster.local
     tls: []
     annotations: {}
+  priorityClass: ""
   routing:
     front:
       basePath: ""