feat(hermitcrab): use ephemeral storage or emptydir + sharding (#290)

Author: LucasMrqes

deploy/charts/burrito/templates/hermitcrab.yaml

@@ -1,25 +1,5 @@
 {{- if .Values.config.burrito.hermitcrab.enabled }}
 {{- with mergeOverwrite (deepCopy .Values.global) .Values.hermitcrab }}
-{{- if .persistence.enabled }}
-apiVersion: v1
-kind: PersistentVolumeClaim
-metadata:
-  name: burrito-hermitcrab
-  annotations:
-    {{- toYaml .metadata.annotations | nindent 4 }}
-  labels:
-    {{- toYaml .metadata.labels | nindent 4 }}
-spec:
-  accessModes:
-    - ReadWriteOnce
-  resources:
-    requests:
-      storage: {{ .persistence.size }}
-  {{- if .persistence.storageClassName }}
-  storageClassName: {{ .persistence.storageClassName }}
-  {{- end }}
-{{- end }}
----
 apiVersion: v1
 kind: Service
 metadata:
@@ -42,7 +22,7 @@ metadata:
   labels:
     {{- toYaml .metadata.labels | nindent 4 }}
 spec:
-  replicas: 1
+  replicas: {{ .deployment.replicas }}
   selector:
     matchLabels:
       {{- toYaml .metadata.labels | nindent 6 }}
@@ -68,9 +48,10 @@ spec:
             {{- toYaml .deployment.livenessProbe | nindent 12 }}
           readinessProbe:
             {{- toYaml .deployment.readinessProbe | nindent 12 }}
+          {{- if or .storage.emptyDir.enabled .storage.ephemeral.enabled .tls.certManager.use .deployment.extraVolumeMounts }}
           volumeMounts:
-            {{- if .persistence.enabled }}
-            - name: data
+            {{- if or .storage.emptyDir.enabled .storage.ephemeral.enabled }}
+            - name: provider-cache
               mountPath: /var/run/hermitcrab
             {{- end }}
             {{- if .tls.certManager.use }}
@@ -80,11 +61,25 @@ spec:
             {{- if .deployment.extraVolumeMounts }}
             {{- toYaml .deployment.extraVolumeMounts | nindent 12 }}
             {{- end }}
+          {{- end }}
+      {{- if or .storage.emptyDir.enabled .storage.ephemeral.enabled .tls.certManager.use .deployment.extraVolumes }}
       volumes:
-        {{- if .persistence.enabled }}
-        - name: data
-          persistentVolumeClaim:
-            claimName: burrito-hermitcrab
+        {{- if or .storage.emptyDir.enabled .storage.ephemeral.enabled }}
+        - name: provider-cache
+          {{- if .storage.emptyDir.enabled }}
+          emptyDir:
+            medium: {{ .storage.emptyDir.medium }}
+            sizeLimit: {{ .storage.emptyDir.sizeLimit }}
+          {{- else if .storage.ephemeral.enabled }}
+          ephemeral:
+            volumeClaimTemplate:
+              spec:
+                accessModes: [ "ReadWriteOnce" ]
+                storageClassName: {{ .storage.ephemeral.storageClassName }}
+                resources:
+                  requests:
+                    storage: {{ .storage.ephemeral.size }}
+          {{- end }}
         {{- end }}
         {{- if .tls.certManager.use }}
         - name: burrito-hermitcrab-tls
@@ -94,6 +89,7 @@ spec:
         {{- if .deployment.extraVolumes }}
         {{- toYaml .deployment.extraVolumes | nindent 8 }}
         {{- end }}
+      {{- end }}
 ---
 {{- if .tls.certManager.use }}
 apiVersion: cert-manager.io/v1

deploy/charts/burrito/values.yaml

@@ -69,9 +69,15 @@ hermitcrab:
     labels:
       app.kubernetes.io/component: hermitcrab
       app.kubernetes.io/name: burrito-hermitcrab
-  persistence:
-    enabled: true
-    size: 1Gi
+  storage:
+    emptyDir:
+      enabled: true
+      medium: ""
+      sizeLimit: "2Gi"
+    ephemeral:
+      enabled: false
+      size: "2Gi"
+      storageClassName: ""
   tls:
     certManager:
       use: true
@@ -88,6 +94,7 @@ hermitcrab:
             kind: Issuer
 
   deployment:
+    replicas: 1
     image:
       pullPolicy: Always
       repository: sealio/hermitcrab
@@ -99,11 +106,11 @@ hermitcrab:
         value: /etc/hermitcrab/tls/tls.key
     resources:
       limits:
-        cpu: '2'
-        memory: '4Gi'
+        cpu: '1'
+        memory: '2Gi'
       requests:
-        cpu: '500m'
-        memory: '512Mi'
+        cpu: '300m'
+        memory: '256Mi'
     ports:
       - name: http
         containerPort: 80