limit info for each resource

Author: Bharath Kaimal

docs/openshift/configuration/limit-ranges/index.md

@@ -58,3 +58,142 @@ spec:
       max:
         storage: "50Gi"
 ```
+
+### Container Limits
+
+```
+apiVersion: "v1"
+kind: "LimitRange"
+metadata:
+  name: "resource-limits" [1]
+spec:
+  limits:
+    - type: "Container"
+      max:
+        cpu: "2" [2]
+        memory: "1Gi" [3]
+      min:
+        cpu: "100m" [4]
+        memory: "4Mi" [5]
+      default:
+        cpu: "300m" [6]
+        memory: "200Mi" [7]
+      defaultRequest:
+        cpu: "200m" [8]
+        memory: "100Mi" [9]
+      maxLimitRequestRatio:
+        cpu: "10" [10]
+```
+
+[1] The name of the _LimitRange_ object
+
+[2] The maximum amount of CPU that a single container in a pod can request
+
+[3] The maximum amount of memory that a single container in a pod can request
+
+[4] The minimum amount of CPU that a single container in a pod can request
+
+[5] The minimum amount of memory that a single container in a pod can request
+
+[6] The default amount of CPU that a container can use if not specified in the _Pod_ spec
+
+[7] The default amount of memory that a container can use if not specified in teh _Pod_ spec
+
+[8] The default amount of CPU that a contianer can request if not specified in the _Pod_ spec
+
+[9] The default amount of memory that a container can request if not specified in the _Pod_ spec
+
+[10] The maximum limit-to-request ratio for a container
+
+### Pod Limits
+
+```
+apiVersion: "v1"
+kind: "LimitRange"
+metadata:
+  name: "resource-limits" [1]
+spec:
+  limits:
+    - type: "Pod"
+      max:
+        cpu: "2" [2]
+        memory: "1Gi" [3]
+      min:
+        cpu: "200m" [4]
+        memory: "6Mi" [5]
+      maxLimitRequestRatio:
+        cpu: "10" [6]
+```
+
+[1] The name of the _LimitRange_ object
+
+[2] The maximum amount of CPU that a pod can request across all containers
+
+[3] The maximum amount of memory that a pod can request across all containers
+
+[4] The minimum amount of CPU that a pod can request across all containers
+
+[5] The minimum amount of memory that a pod can request across all containers
+
+[6] The maximum limit-to-request ration for a container
+
+### Image Limits
+
+```
+apiVersion: "v1"
+kind: "LimitRange"
+metadata:
+  name: "resource-limits" [1]
+spec:
+  limits:
+    - type: openshift.io/Image
+      max:
+        storage: 1Gi [2]
+```
+
+[1] The name of the _LimitRange_ object
+
+[2] The maximum size of an image that can be pushed to a registry
+
+### Image Stream Limits
+
+```
+apiVersion: "v1"
+kind: "LimitRange"
+metadata:
+  name: "resource-limits" [1]
+spec:
+  limits:
+    - type: openshift.io/ImageStream
+      max:
+        openshift.io/image-tags: 20 [2]
+        openshift.io/images: 30 [3]
+```
+
+[1] The name of the _LimitRange_ object
+
+[2] The maximum number of unique image tags in the _imagestream.spec.tags_ parameter in _imagestream_ spec
+
+[3] The maximum number of unique image regerenes in the _imagestream.status.tags_ parameter in the _imagestream_ spec
+
+### Persistent Volume Claim Limits
+
+```
+apiVersion: "v1"
+kind: "LimitRange"
+metadata:
+  name: "resource-limits" [1]
+spec:
+  limits:
+    - type: "PersistentVolumeClaim"
+      min:
+        storage: "2Gi" [2]
+      max:
+        storage: "50Gi" [3]
+```
+
+[1] The name of the _LimitRange_ object
+
+[2] The minimum amount of storage that can be requested in a persistent volume claim
+
+[3] The maximum amount of storage that can be requested in a persistent volume claim