[COMMON] Add limits to cassandra statefulsets.

Having limits is important in order to have safe deployment.
cassandra didn't had one so let's add them.

Issue-ID: OOM-2230
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Change-Id: Id3fef8c351f1be977eab49abd111304b9edd9151

2 files changed, 11 insertions, 14 deletions

diff --git a/kubernetes/common/cassandra/templates/statefulset.yaml b/kubernetes/common/cassandra/templates/statefulset.yaml
index 2bcafd9ade..8c49b697e6 100644
--- a/kubernetes/common/cassandra/templates/statefulset.yaml
+++ b/kubernetes/common/cassandra/templates/statefulset.yaml
@@ -112,15 +112,12 @@ spec:
         {{- else }}
               command: ["/bin/sh", "-c", "PID=$(pidof java) && kill $PID && while ps -p $PID > /dev/null; do sleep 1; done"]
         {{- end }}
-        resources:
-{{ toYaml .Values.resources | indent 10 }}
+        resources: {{ toYaml .Values.resources | nindent 10 }}
       {{- if .Values.nodeSelector }}
-      nodeSelector:
-{{ toYaml .Values.nodeSelector | indent 8 }}
+      nodeSelector: {{ toYaml .Values.nodeSelector | nindent 8 }}
       {{- end -}}
       {{- if .Values.affinity }}
-      affinity:
-{{ toYaml .Values.affinity | indent 8 }}
+      affinity: {{ toYaml .Values.affinity | nindent 8 }}
       {{- end }}
       volumes:
       - name: localtime
diff --git a/kubernetes/common/cassandra/values.yaml b/kubernetes/common/cassandra/values.yaml
index 959e243638..d0ada59061 100644
--- a/kubernetes/common/cassandra/values.yaml
+++ b/kubernetes/common/cassandra/values.yaml
@@ -131,7 +131,7 @@ persistence:
 
 configOverrides: {}
 
-resources: {}
+# resources: {}
   # We usually recommend not to specify default resources and to leave this as a conscious
   # choice for the user. This also increases chances charts run on environments with little
   # resources, such as Minikube. If you do want to specify resources, uncomment the following
@@ -142,13 +142,13 @@ resources: {}
   # ref: http://kubernetes.io/docs/user-guide/compute-resources/
   # Minimum memory for development is 2 CPU cores and 4GB memory
   # Minimum memory for production is 4 CPU cores and 8GB memory
-#resources:
-#  limits:
-#    cpu: 2
-#    memory: 4Gi
-#  requests:
-#    cpu: 2
-#    memory: 4Gi
+resources:
+  limits:
+    cpu: 0.8
+    memory: 4Gi
+  requests:
+    cpu: 0.2
+    memory: 2.5Gi
 backup:
   enabled: false
   cron: "00 00 * * *"