Khushi/microservice

charts/microservice/Chart.yaml

@@ -2,8 +2,9 @@ apiVersion: v2
 name: microservice
 description: Basic helm chart for deploying microservices on kubernetes with best practices
 type: application
-version: 0.1.5
+version: 0.1.6
 appVersion: "0.1.2"
 maintainers:
   - name: ashwani-opstree
   - name: tripathishikha1
+  - name: khushimalhoz

charts/microservice/examples/deploy-nginx.yaml

@@ -30,4 +30,3 @@ deployment:
         data:
           index.html: |
             Hello! Opstree
-

charts/microservice/templates/deployment.yaml

@@ -40,7 +40,7 @@ spec:
       {{- end }}
       serviceAccountName: {{ include "microservice.serviceAccountName" . }}
       containers:
-        - name: {{ include "microservice.fullname" . }}
+        - name: {{ include "microservice.fullname" . }}-app
           image: "{{ .Values.deployment.image.name }}:{{ .Values.deployment.image.tag }}"
           imagePullPolicy: {{ .Values.deployment.image.pullPolicy }}
           {{- if .Values.deployment.command }}
@@ -100,11 +100,34 @@ spec:
       nodeSelector:
         {{- toYaml . | nindent 8 }}
       {{- end }}
-      {{- with .Values.deployment.affinity }}
+      {{- if and .Values.deployment.affinity.enabled (or .Values.deployment.affinity.preferred.enabled .Values.deployment.affinity.required.enabled) }}
       affinity:
-        {{- toYaml . | nindent 8 }}
+        podAntiAffinity:
+          {{- if .Values.deployment.affinity.preferred.enabled }}
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - weight: 100
+            podAffinityTerm:
+              labelSelector:
+                matchLabels:
+                  app: {{ include "microservice.fullname" . }}
+              topologyKey: {{ .Values.deployment.affinity.topologyKey }}
+          {{- end }}
+          {{- if and .Values.deployment.affinity.required.enabled (not .Values.deployment.affinity.preferred.enabled) }}
+          requiredDuringSchedulingIgnoredDuringExecution:
+          - labelSelector:
+              matchLabels:
+                app: {{ include "microservice.fullname" . }}
+            topologyKey: {{ .Values.deployment.affinity.topologyKey }}
+          {{- end }}
       {{- end }}
-      {{- with .Values.deployment.tolerations }}
-      tolerations:
-        {{- toYaml . | nindent 8 }}
+      {{- if .Values.deployment.topologySpreadConstraints.enabled }}
+      topologySpreadConstraints:
+        - maxSkew: 1
+          topologyKey: {{ .Values.deployment.topologySpreadConstraints.topologyKey }}
+          whenUnsatisfiable: "{{ .Values.deployment.topologySpreadConstraints.whenUnsatisfiable }}"
+          labelSelector:
+            matchLabels:
+              app: {{ include "microservice.fullname" . }}
+          minDomains: 2
       {{- end }}
+

charts/microservice/values.yaml

@@ -120,12 +120,23 @@
 
   tolerations: []
 
-  affinity: {}
+  affinity:
+    enabled: true
+    preferred:
+      enabled: true
+    required:
+      enabled: false
+    topologyKey: "topology.kubernetes.io/zone"
+
+  topologySpreadConstraints:
+    enabled: true
+    whenUnsatisfiable: "ScheduleAnyway" # Options: "DoNotSchedule", "ScheduleAnyway"
+    topologyKey: "topology.kubernetes.io/zone"
 
 hpa:
   enabled: true
-  minReplicas: 1
-  maxReplicas: 1
+  minReplicas: 2
+  maxReplicas: 3
   targetCPU: 80
   targetMemory: 80
 
@@ -138,10 +149,6 @@
 
 serviceAccount:
   create: false
-  # Automatically mount a ServiceAccount's API credentials?
   automount: true
-  # Annotations to add to the service account
   annotations: {}
-  # The name of the service account to use.
-  # If not set and create is true, a name is generated using the fullname template
   name: ""