[COMMON] Harmonize resource settings

Update all resource settings to the kubernetes recommended
normalized form. Fix ReadinessCheck resource limits.

Issue-ID: OOM-3273

Change-Id: Ie10903b801e4dc1689bcec092162d711a431a7a6
Signed-off-by: Andreas Geissler <andreas-geissler@telekom.de>
diff --git a/kubernetes/common/elasticsearch/values.yaml b/kubernetes/common/elasticsearch/values.yaml
index c3352ae..e1c8f72 100644
--- a/kubernetes/common/elasticsearch/values.yaml
+++ b/kubernetes/common/elasticsearch/values.yaml
@@ -94,11 +94,11 @@
   ## choice for the user. This also increases chances charts run on environments with little
   ## resources, such as Minikube.
   limits: {}
-  #   cpu: 100m
-  #   memory: 128Mi
+  #   cpu: "100m"
+  #   memory: "0.1Gi"
   requests:
-    cpu: 25m
-    memory: 256Mi
+    cpu: "25m"
+    memory: "0.2Gi"
 ## Elasticsearch coordinating-only container's liveness and readiness probes
 ## ref: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#container-probes
 ##