Allow QPS and Burst limits to be set for operator

For customers who have very large numbers of functions, this change enables configuration of QPS and Burst limits for the Kubernetes API for OpenFaaS for Enterprises. Signed-off-by: Alex Ellis (OpenFaaS Ltd) <[email protected]>
openfaas · Oct 11, 2023 · 69b7106 · 69b7106
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diff --git a/chart/openfaas/Chart.yaml b/chart/openfaas/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v2
 type: application
 description: OpenFaaS - Serverless Functions Made Simple
 name: openfaas
-version: 14.1.9
+version: 14.1.10
 sources:
 - https://github.com/openfaas/faas
 - https://github.com/openfaas/faas-netes

diff --git a/chart/openfaas/README.md b/chart/openfaas/README.md
@@ -493,6 +493,8 @@ yaml) |
 | `operator.image` | Container image used for the openfaas-operator | See [values.yaml](./values.yaml) |
 | `operator.resources` | Resource limits and requests for openfaas-operator containers | See [values.yaml](./values.yaml) |
 | `operator.image` | Container image used for the openfaas-operator | See [values.yaml](./values.yaml) |
+| `operator.kubeClientQPS` | QPS rate-limit for the Kubernetes client, (OpenFaaS for Enterprises) | `""` (defaults to 100) |
+| `operator.kubeClientBurst` | Burst rate-limit for the Kubernetes client (OpenFaaS for Enterprises) | `""` (defaults to 250) |
 
 ### Functions
 

diff --git a/chart/openfaas/templates/gateway-dep.yaml b/chart/openfaas/templates/gateway-dep.yaml
@@ -256,6 +256,10 @@ spec:
             value: "{{ .Values.functions.livenessProbe.failureThreshold }}"
           - name: cluster_role
             value: "{{ .Values.clusterRole }}"
+          - name: kube_client_qps
+            value: "{{ .Values.operator.kubeClientQPS }}"
+          - name: kube_client_burst
+            value: "{{ .Values.operator.kubeClientBurst }}"
           {{- if .Values.iam.enabled }}
           - name: issuer_key_path
             value: "/var/secrets/issuer-key/issuer.key"

diff --git a/chart/openfaas/values.yaml b/chart/openfaas/values.yaml
@@ -92,15 +92,21 @@ gateway:
 
 # For OpenFaaS Pro and the Function CRD
 operator:
-  image: ghcr.io/openfaasltd/faas-netes:0.4.21
+  image: ghcr.io/openfaasltd/faas-netes:0.4.22
   create: false
   resources:
     requests:
       memory: "120Mi"
       cpu: "50m"
 
+  # For OpenFaaS for Enterprises, these numbers can be set higher,
+  # if experiencing rate limiting due to a large number of functions
+  # within the cluster
+  kubeClientQPS: 100
+  kubeClientBurst: 250
+
 faasnetesPro:
-  image: ghcr.io/openfaasltd/faas-netes:0.4.21
+  image: ghcr.io/openfaasltd/faas-netes:0.4.22
 
 # For the Community Edition
 faasnetes:

diff --git a/docs/cron-connector-0.6.5.tgz b/docs/cron-connector-0.6.5.tgz
diff --git a/docs/federated-gateway-0.0.3.tgz b/docs/federated-gateway-0.0.3.tgz