fix: Add priorityClass and maxUnavailable to sysdig-agent helm chart (#398)

* feat: Add priorityClass to sysdig helm chart

* feat: Configure maxUnavailable to 25% for sysdig-agent

* Change sysdig priority value to 999999

---------

Co-authored-by: Daniel Butler <[email protected]>

Author: kulmannf

chart/sysdig-agent/templates/daemonset.yaml

@@ -16,6 +16,8 @@ spec:
       app: "{{ .Values.metadata.name }}"
   updateStrategy:
     type: RollingUpdate
+    rollingUpdate:
+      maxUnavailable: 25%
   template:
     metadata:
       labels:
@@ -86,6 +88,7 @@ spec:
       {{- end}}
       # The following line is necessary for RBAC
       serviceAccountName: "{{ .Values.metadata.name }}"
+      priorityClassName: "{{ .Values.metadata.name }}-ds-priority"
       terminationGracePeriodSeconds: 5
       containers:
       - name: "{{ .Values.metadata.name }}"

chart/sysdig-agent/templates/priorityclass.yaml

@@ -0,0 +1,9 @@
+apiVersion: scheduling.k8s.io/v1
+kind: PriorityClass
+metadata:
+  name: "{{ .Values.metadata.name }}-ds-priority"
+  namespace: {{ .Release.Namespace }}
+value: 999999
+preemptionPolicy: PreemptLowerPriority
+globalDefault: false
+description: "Sysdig Agent"