make minimum limits boundaries configurable

manifests/complete-postgres-manifest.yaml

@@ -42,8 +42,8 @@ spec:
       cpu: 10m
       memory: 100Mi
     limits:
-      cpu: 300m
-      memory: 300Mi
+      cpu: 500m
+      memory: 500Mi
   patroni:
     initdb:
       encoding: "UTF8"

manifests/configmap.yaml

@@ -15,9 +15,9 @@ data:
   # custom_pod_annotations: "keya:valuea,keyb:valueb"
   db_hosted_zone: db.example.com
   debug_logging: "true"
-  # default_cpu_limit: "3"
+  # default_cpu_limit: "1"
   # default_cpu_request: 100m
-  # default_memory_limit: 1Gi
+  # default_memory_limit: 500Mi
   # default_memory_request: 100Mi
   docker_image: registry.opensource.zalan.do/acid/spilo-cdp-12:1.6-p16
   # enable_admin_role_for_users: "true"
@@ -48,6 +48,8 @@ data:
   # master_pod_move_timeout: 10m
   # max_instances: "-1"
   # min_instances: "-1"
+  # min_cpu_limit: 250m
+  # min_memory_limit: 250Mi
   # node_readiness_label: ""
   # oauth_token_secret_name: postgresql-operator
   # pam_configuration: |

manifests/operatorconfiguration.crd.yaml

@@ -155,6 +155,12 @@ spec:
                 default_memory_request:
                   type: string
                   pattern: '^(\d+(e\d+)?|\d+(\.\d+)?(e\d+)?[EPTGMK]i?)$'
+                min_cpu_limit:
+                  type: string
+                  pattern: '^(\d+m|\d+(\.\d{1,3})?)$'
+                min_memory_limit:
+                  type: string
+                  pattern: '^(\d+(e\d+)?|\d+(\.\d+)?(e\d+)?[EPTGMK]i?)$'
             timeouts:
               type: object
               properties:

manifests/postgres-operator.yaml

@@ -19,10 +19,10 @@ spec:
         imagePullPolicy: IfNotPresent
         resources:
           requests:
-            cpu: 500m
+            cpu: 100m
             memory: 250Mi
           limits:
-            cpu: 2000m
+            cpu: 500m
             memory: 500Mi
         securityContext:
           runAsUser: 1000

manifests/postgresql-operator-default-configuration.yaml

@@ -54,10 +54,12 @@ configuration:
     # toleration: {}
     # watched_namespace: ""
   postgres_pod_resources:
-    default_cpu_limit: "3"
+    default_cpu_limit: "1"
     default_cpu_request: 100m
-    default_memory_limit: 1Gi
+    default_memory_limit: 500Mi
     default_memory_request: 100Mi
+    # min_cpu_limit: 250m
+    # min_memory_limit: 250Mi
   timeouts:
     pod_label_wait_timeout: 10m
     pod_deletion_wait_timeout: 10m
@@ -115,6 +117,6 @@ configuration:
     scalyr_cpu_limit: "1"
     scalyr_cpu_request: 100m
     # scalyr_image: ""
-    scalyr_memory_limit: 1Gi
+    scalyr_memory_limit: 500Mi
     scalyr_memory_request: 50Mi
     # scalyr_server_url: ""