feat(kubeadm): specify resource requests in etcd pod spec

Signed-off-by: knight42 <[email protected]>

Author: knight42

cmd/kubeadm/app/phases/etcd/BUILD

@@ -32,6 +32,7 @@ go_library(
         "//cmd/kubeadm/app/util/etcd:go_default_library",
         "//cmd/kubeadm/app/util/staticpod:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/api/resource:go_default_library",
         "//staging/src/k8s.io/client-go/kubernetes:go_default_library",
         "//vendor/github.com/pkg/errors:go_default_library",
         "//vendor/k8s.io/klog/v2:go_default_library",

cmd/kubeadm/app/phases/etcd/local.go

@@ -26,17 +26,18 @@ import (
 	"time"
 
 	"github.com/pkg/errors"
-	"k8s.io/klog/v2"
-
 	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/resource"
 	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/klog/v2"
+	utilsnet "k8s.io/utils/net"
+
 	kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
 	kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
 	"k8s.io/kubernetes/cmd/kubeadm/app/images"
 	kubeadmutil "k8s.io/kubernetes/cmd/kubeadm/app/util"
 	etcdutil "k8s.io/kubernetes/cmd/kubeadm/app/util/etcd"
 	staticpodutil "k8s.io/kubernetes/cmd/kubeadm/app/util/staticpod"
-	utilsnet "k8s.io/utils/net"
 )
 
 const (
@@ -247,6 +248,13 @@ func GetEtcdPodSpec(cfg *kubeadmapi.ClusterConfiguration, endpoint *kubeadmapi.A
 				staticpodutil.NewVolumeMount(etcdVolumeName, cfg.Etcd.Local.DataDir, false),
 				staticpodutil.NewVolumeMount(certsVolumeName, cfg.CertificatesDir+"/etcd", false),
 			},
+			Resources: v1.ResourceRequirements{
+				Requests: v1.ResourceList{
+					v1.ResourceCPU:              resource.MustParse("100m"),
+					v1.ResourceMemory:           resource.MustParse("100Mi"),
+					v1.ResourceEphemeralStorage: resource.MustParse("100Mi"),
+				},
+			},
 			LivenessProbe: staticpodutil.LivenessProbe(probeHostname, "/health", probePort, probeScheme),
 			StartupProbe:  staticpodutil.StartupProbe(probeHostname, "/health", probePort, probeScheme, cfg.APIServer.TimeoutForControlPlane),
 		},