*: add --max-pods to vc nodepool add command

cmd/kperf/commands/virtualcluster/nodepool.go

@@ -49,6 +49,11 @@ var nodepoolAddCommand = cli.Command{
 			Usage: "The allocatable Memory resource per node (GiB)",
 			Value: 16,
 		},
+		cli.IntFlag{
+			Name:  "max-pods",
+			Usage: "The maximum Pods per node",
+			Value: 110,
+		},
 		cli.StringSliceFlag{
 			Name:  "affinity",
 			Usage: "Deploy controllers to the nodes with a specific labels (FORMAT: KEY=VALUE[,VALUE])",
@@ -76,6 +81,7 @@ var nodepoolAddCommand = cli.Command{
 			virtualcluster.WithNodepoolCPUOpt(cliCtx.Int("cpu")),
 			virtualcluster.WithNodepoolMemoryOpt(cliCtx.Int("memory")),
 			virtualcluster.WithNodepoolCountOpt(cliCtx.Int("nodes")),
+			virtualcluster.WithNodepoolMaxPodsOpt(cliCtx.Int("max-pods")),
 			virtualcluster.WithNodepoolNodeControllerAffinity(affinityLabels),
 		)
 	},

manifests/virtualcluster/nodes/templates/nodes.tpl

@@ -1,6 +1,7 @@
 {{- $name := .Values.name }}
 {{- $cpu := .Values.cpu  }}
 {{- $memory := .Values.memory }}
+{{- $maxPods := .Values.maxPods }}
 {{- $labels := .Values.nodeLabels }}
 {{- range $index := (untilStep 0 (int .Values.replicas) 1) }}
 apiVersion: v1
@@ -35,11 +36,11 @@ status:
   allocatable:
     cpu: {{ $cpu }}
     memory: {{ $memory }}Gi
-    pods: 110
+    pods: {{ $maxPods }}
   capacity:
     cpu: {{ $cpu }}
     memory: {{ $memory }}Gi
-    pods: 110
+    pods: {{ $maxPods }}
   nodeInfo:
     architecture: amd64
     containerRuntimeVersion: "kwok"

manifests/virtualcluster/nodes/values.yaml

@@ -3,3 +3,4 @@ nodeLabels: {}
 replicas: 0
 cpu: 0
 memory: 0
+maxPods: 0

virtualcluster/nodes_common.go

@@ -11,9 +11,10 @@ import (
 
 var (
 	defaultNodepoolCfg = nodepoolConfig{
-		count:  10,
-		cpu:    8,
-		memory: 16, // GiB
+		count:   10,
+		cpu:     8,
+		memory:  16, // GiB
+		maxPods: 110,
 	}
 
 	// virtualnodeReleaseLabels is used to mark that helm chart release
@@ -53,6 +54,8 @@ type nodepoolConfig struct {
 	// memory represents a logical memory resource provided by virtual node.
 	// The unit is GiB.
 	memory int
+	// maxPods represents maximum Pods per node.
+	maxPods int
 	// labels is to be applied to each virtual node.
 	labels []string
 	// nodeSelectors forces virtual node's controller to nodes with that specific labels.
@@ -65,6 +68,10 @@ func (cfg *nodepoolConfig) validate() error {
 			cfg.count, cfg.cpu, cfg.memory)
 	}
 
+	if cfg.maxPods <= 0 {
+		return fmt.Errorf("required max pods > 0, but got %d", cfg.maxPods)
+	}
+
 	if cfg.name == "" {
 		return fmt.Errorf("required non-empty name")
 	}
@@ -107,6 +114,13 @@ func WithNodepoolMemoryOpt(memory int) NodepoolOpt {
 	}
 }
 
+// WithNodepoolMaxPodsOpt updates max pods.
+func WithNodepoolMaxPodsOpt(maxPods int) NodepoolOpt {
+	return func(cfg *nodepoolConfig) {
+		cfg.maxPods = maxPods
+	}
+}
+
 // WithNodepoolLabelsOpt updates node's labels.
 func WithNodepoolLabelsOpt(labels []string) NodepoolOpt {
 	return func(cfg *nodepoolConfig) {
@@ -126,13 +140,13 @@ func WithNodepoolNodeControllerAffinity(nodeSelectors map[string][]string) Nodep
 //
 // NOTE: Please align with ../manifests/virtualcluster/nodes/values.yaml
 func (cfg *nodepoolConfig) toNodeHelmValuesAppliers() []helmcli.ValuesApplier {
-	res := make([]string, 0, 4)
+	res := make([]string, 0, 5)
 
 	res = append(res, fmt.Sprintf("name=%s", cfg.name))
 	res = append(res, fmt.Sprintf("cpu=%d", cfg.cpu))
 	res = append(res, fmt.Sprintf("memory=%d", cfg.memory))
 	res = append(res, fmt.Sprintf("replicas=%d", cfg.count))
-
+	res = append(res, fmt.Sprintf("maxPods=%d", cfg.maxPods))
 	return []helmcli.ValuesApplier{helmcli.StringPathValuesApplier(res...)}
 }