Merge pull request #19758 from Huawei-PaaS/node-affinity-part1

NodeSelector, HardNodeAffinity and SoftNodeAffinity implementation

docs/user-guide/node-selection/pod-with-node-affinity.yaml

@@ -0,0 +1,28 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: with-labels
+  annotations:
+    scheduler.alpha.kubernetes.io/affinity: >
+      {
+        "nodeAffinity": {
+          "requiredDuringSchedulingIgnoredDuringExecution": {
+            "nodeSelectorTerms": [
+              {
+                "matchExpressions": [
+                  {
+                    "key": "kubernetes.io/e2e-az-name",
+                    "operator": "In",
+                    "values": ["e2e-az1", "e2e-az2"]
+                  }
+                ]
+              }
+            ]
+          }
+        }
+      }
+    another-annotation-key: another-annotation-value
+spec:
+  containers:
+  - name: with-labels
+    image: gcr.io/google_containers/pause:2.0