Merge pull request #2 from mia-platform/feat/traefik-pdb

feat: added poddisruptionbudget

charts/traefik-ingress/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 name: traefik-ingress
-version: 1.4.2
+version: 1.5.0
 kubeVersion: ">= 1.17.0-0"
 appVersion: 2.5.4
 description: "A Kubernetes Ingress Controller based on Traefik"

charts/traefik-ingress/templates/poddisruptionbudget.yaml

@@ -0,0 +1,17 @@
+{{- if and (eq .Values.podDisruptionBudget.enabled true) (lt .Values.podDisruptionBudget.minAvailable .Values.deploy.replicas) -}}
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ include "mia-traefik-ingress.fullname" . | quote }}
+  labels:
+    {{- include "mia-traefik-ingress.labels" . | nindent 4 }}
+spec:
+  selector:
+    matchLabels: {{- include "mia-traefik-ingress.selectorLabels" . | nindent 6 }}
+  {{- if .Values.podDisruptionBudget.minAvailable }}
+  minAvailable: {{ .Values.podDisruptionBudget.minAvailable }}
+  {{- end }}
+  {{- if .Values.podDisruptionBudget.maxUnavailable }}
+  maxUnavailable: {{ .Values.podDisruptionBudget.maxUnavailable }}
+  {{- end }}
+{{- end }}

charts/traefik-ingress/values.schema.json

@@ -29,6 +29,24 @@
       "description": "Enable the Pod Security Policy for allowing the execution of the traefik pods",
       "type": "boolean"
     },
+    "podDisruptionBudget": {
+      "description": "PodDisruptionBudget configuration for traefik pods",
+      "type": "object",
+      "properties": {
+        "enabled": {
+          "description": "If PodDisruptionBudget must be enabled",
+          "type": "boolean"
+        },
+        "minAvailable": {
+          "description": "Number of pods from that set that must still be available after the eviction",
+          "type": "integer"
+        },
+        "maxUnavailable": {
+          "description": "Number of pods from that set that can be unavailable after the eviction",
+          "type": "integer"
+        }
+      }
+    },
     "defaultIngressClass": {
       "description": "Set as default ingressClass of the cluster, setting it up only in kubernetes >= 1.18 and if the traefik version is >= 2.3",
       "type": "boolean"

charts/traefik-ingress/values.yaml

@@ -16,6 +16,11 @@ defaultIngressClass: false
 allowCrossNamespaceResources: true
 # Enable the usage of ExternalName services
 allowExternalNameServices: false
+# Enable PodDisruptionBudget for traefik
+podDisruptionBudget:
+  enabled: false
+  minAvailable: 1
+  # maxUnavailable: 1
 
 image:
   # Override the default Docker image name if you use a custom image or a repository mirror