feature(backend): Add QPS and Burst settings (kubeflow#1055)

Add QPS and Burst settings for the RestClient
in api-server and tekton-pipelines-controllers.
Set both values to 50 for a medium workload.

Signed-off-by: Yihong Wang <[email protected]>

Signed-off-by: Yihong Wang <[email protected]>

Author: yhwang

install/v1.3.1/kfp-tekton.yaml

@@ -2518,6 +2518,10 @@ spec:
               name: pipeline-install-config
         - name: OBJECTSTORECONFIG_SECURE
           value: "false"
+        - name: CLIENTQPS
+          value: "50"
+        - name: CLIENTBURST
+          value: "50"
         - name: OBJECTSTORECONFIG_BUCKETNAME
           valueFrom:
             configMapKeyRef:

manifests/kustomize/base/pipeline/apiserver-deployment.yaml

@@ -24,6 +24,10 @@ spec:
               key: objectStorePort
         - name: OBJECTSTORECONFIG_SECURE
           value: "false"
+        - name: CLIENTQPS
+          value: "50"
+        - name: CLIENTBURST
+          value: "50"
         - name: OBJECTSTORECONFIG_BUCKETNAME
           valueFrom:
             configMapKeyRef:

manifests/kustomize/third-party/tekton/upstream/manifests/base/tektoncd-install/kustomization.yaml

@@ -5,6 +5,14 @@ resources:
 patchesStrategicMerge:
 - tekton-config.yaml
 - tekton-default.yaml
+patchesJson6902:
+- target:
+    group: apps
+    version: v1
+    kind: Deployment
+    name: tekton-pipelines-controller
+    namespace: tekton-pipelines
+  path: tekton-controller.yaml
 images:
 - name: $(registry)/$(controller)
   newName: $(registry)/$(controller)

manifests/kustomize/third-party/tekton/upstream/manifests/base/tektoncd-install/tekton-controller.yaml

@@ -0,0 +1,18 @@
+- op: add
+  path: /spec/template/spec/containers/0/args/0
+  value: "4"
+- op: add
+  path: /spec/template/spec/containers/0/args/0
+  value: "-threads-per-controller"
+- op: add
+  path: /spec/template/spec/containers/0/args/0
+  value: "50"
+- op: add
+  path: /spec/template/spec/containers/0/args/0
+  value: "-kube-api-burst"
+- op: add
+  path: /spec/template/spec/containers/0/args/0
+  value: "50"
+- op: add
+  path: /spec/template/spec/containers/0/args/0
+  value: "-kube-api-qps"