Add dragonfly to the deployment

Signed-off-by: Nikolai Rodionov <iam@allanger.xyz>

helm/softplayer-backend/templates/deployment.yaml

@@ -66,6 +66,8 @@ spec:
                 secretKeyRef:
                   name: {{ include "softplayer-backend.fullname" . }}-db-creds
                   key: CONNECTION_STRING
+            - name: SOFTPLAYER_REDIS_HOST
+              value: {{ include "softplayer-backend.fullname" . }}-dragonfly:6379
           args:
             - serve
             - --dev-mode

helm/softplayer-backend/templates/extra/dragonfly.yaml

@@ -0,0 +1,17 @@
+apiVersion: dragonflydb.io/v1alpha1
+kind: Dragonfly
+metadata:
+  name: {{ include "softplayer-backend.fullname" . }}-dragonfly
+  labels:
+    {{- include "softplayer-backend.labels" . | nindent 4 }}
+spec:
+  imagePullPolicy: Always
+  networkPolicyEnabled: true
+  replicas: 1
+  resources:
+    limits:
+      cpu: 20m
+      memory: 256Mi
+    requests:
+      cpu: 20m
+      memory: 128Mi