diff --git a/cmd/kube-proxy/app/server.go b/cmd/kube-proxy/app/server.go
index 06a5ad19e89..9d0afad016f 100644
--- a/cmd/kube-proxy/app/server.go
+++ b/cmd/kube-proxy/app/server.go
@@ -90,7 +90,7 @@ const (
 	proxyModeUserspace   = "userspace"
 	proxyModeIPTables    = "iptables"
 	proxyModeIPVS        = "ipvs"
-	proxyModeKernelspace = "kernelspace"
+	proxyModeKernelspace = "kernelspace" //nolint:deadcode
 )
 
 // proxyRun defines the interface to run a specified ProxyServer
diff --git a/pkg/credentialprovider/gcp/metadata.go b/pkg/credentialprovider/gcp/metadata.go
index 9c5df1987c1..8dd5f2afda9 100644
--- a/pkg/credentialprovider/gcp/metadata.go
+++ b/pkg/credentialprovider/gcp/metadata.go
@@ -41,8 +41,6 @@ const (
 	DockerConfigURLKey = metadataAttributes + "google-dockercfg-url"
 	serviceAccounts    = metadataURL + "instance/service-accounts/"
 	metadataScopes     = metadataURL + "instance/service-accounts/default/scopes"
-	metadataToken      = metadataURL + "instance/service-accounts/default/token"
-	metadataEmail      = metadataURL + "instance/service-accounts/default/email"
 	// StorageScopePrefix is the prefix checked by ContainerRegistryProvider.Enabled.
 	StorageScopePrefix       = "https://www.googleapis.com/auth/devstorage"
 	cloudPlatformScopePrefix = "https://www.googleapis.com/auth/cloud-platform"
diff --git a/pkg/kubelet/certificate/bootstrap/bootstrap_test.go b/pkg/kubelet/certificate/bootstrap/bootstrap_test.go
index af80fdfad7f..2cfe5bb0f08 100644
--- a/pkg/kubelet/certificate/bootstrap/bootstrap_test.go
+++ b/pkg/kubelet/certificate/bootstrap/bootstrap_test.go
@@ -387,8 +387,7 @@ func TestRequestNodeCertificate(t *testing.T) {
 type failureType int
 
 const (
-	noError failureType = iota
-	createError
+	createError = iota
 	certificateSigningRequestDenied
 )
 
diff --git a/pkg/registry/core/pod/rest/metrics.go b/pkg/registry/core/pod/rest/metrics.go
index 7286c4d7ab6..5b8bf7d91ae 100644
--- a/pkg/registry/core/pod/rest/metrics.go
+++ b/pkg/registry/core/pod/rest/metrics.go
@@ -29,7 +29,6 @@ const (
 
 	usageEnforce     = "enforce_tls"
 	usageSkipAllowed = "skip_tls_allowed"
-	usageSkipDenied  = "skip_tls_denied"
 )
 
 var (
diff --git a/pkg/util/iptables/iptables.go b/pkg/util/iptables/iptables.go
index d8c5cc67054..29ca81a793a 100644
--- a/pkg/util/iptables/iptables.go
+++ b/pkg/util/iptables/iptables.go
@@ -631,7 +631,6 @@ const (
 	opFlushChain  operation = "-F"
 	opDeleteChain operation = "-X"
 	opListChain   operation = "-S"
-	opAppendRule  operation = "-A"
 	opCheckRule   operation = "-C"
 	opDeleteRule  operation = "-D"
 )
diff --git a/plugin/pkg/admission/imagepolicy/certs_test.go b/plugin/pkg/admission/imagepolicy/certs_test.go
index 62087c3e7ea..af00f2b312b 100644
--- a/plugin/pkg/admission/imagepolicy/certs_test.go
+++ b/plugin/pkg/admission/imagepolicy/certs_test.go
@@ -21,34 +21,6 @@ limitations under the License.
 
 package imagepolicy
 
-var caKey = []byte(`-----BEGIN RSA PRIVATE KEY-----
-MIIEowIBAAKCAQEAoKjaP9PtRAGRNCx8z+0LTGt2eEduqElcPrm8EvlBwn3dnLFo
-55x+Tejb6ysQsyy1BKI0dRdX4tNSAgFFFaIVcsOo9kGtPq7QsSd4VWViNE3L5zJA
-+0X2ztHBkPlQXwDrtArsNKxwcpyHP9sXE05BN36XBjAz2XkusTkFrdJ/PzjZhlb4
-9i9gTZ0bJbexQ1+dfZX2WpY70JypYnKrbV1dLj5ORb65SC8IWZcG/ouqLWAN+lT+
-eug8P6PjoOQWs3qsl0bSAtAdiYcwXKtPiBEWPJe24ACywyE+8jVzmIJqAm0U1V8k
-GTHzjmSRwzgX/VN5JMri/nxNIW5UsbhHzYHfjQIDAQABAoIBAQCIeAWz1Bwl+ULT
-U7rNkChZyKrAbsUDdBVEPtcQMuR2Bh5Z/KUEoHz1RwiP0WwFFsPI5NO0ZpjD1wdB
-Jrz9LEoVyzfZvl4f8bTZ1pIzz8PEdBTxFVH3Xy3P7oMC15Q6rviIXgLYl2WJJYcJ
-adxHDOD+96vnmMhiQbq01aAKT9TA6PvXXDusfadMQ+il+mEbeZz4aNYBk9u+34Co
-aQTNwlLft5anW2820IMJdJR/bFjyX71cPID1rIjw4VOQZExIpIEnuHPiulyE4EvJ
-hvvVKAm0dRjHg39cz0eAQ6PntX3DUvjNfcLLrj7sQxLco1cnAKZxhpZ8ajtvynr5
-pF2d5xYBAoGBAM8y/e5+raHTLHEKZUc0vekUey3fc4aRqptyAKTS0ZvOYBXg4Vhl
-mOK7066IEqwF4UHGmQqW6D5HstqPGx0uN0d9IyImUqDp0JotdFSZMEMQkYLyFD+r
-J7O2nOO6E4SOxXO9/q9iSB+G/qgl6LS3O9+58uHTYEbUommiDZ6a18qBAoGBAMZ/
-xSGMa3b6vrU3rUTEh+xBh6YRVNYAxWwpGg2sO0k2brT3SxSMCrx1wvNGY+k7XNx0
-JJfZQDC/wlR0rcVTnPCi/cE9FTUlh23xXCPRlxwc4vLly+7yU95LhAO+N9XAwsrs
-OIi4lR57jxoLNO2ofoAVMvllkE5Eo5W6lOPR2xcNAoGAV1Tv0OFV//pJJhAypfOm
-BCLc1HX1dIfbOA+yE8bEEH7I4w/ZC3AvI4n1a//wls8Xpai2gs8ebnm7+gENdZww
-MpKdB1zNwQMsKH/2I146CFpoap/sRvW2EzpqIFYiueGPefxf575uFdPJbEgmMF13
-ABKZO/PjBZfEKO/j+7DaOYECgYBYX+Zqa1QlIrnpgKJZ7Y3+d6ZnH2w/4xQCdcIt
-uDKlA+ECHN+GhFr7UQq8uOgenNlZJTRtjsHvclCYvWHoarOCx25mrEVW5iCHqF+3
-asb2Mz4vmnPTLHx+iex6piPBvRJ8ufLpnBR3/9bUZ4znCo9XgxiwxLEcx551OR60
-12fNuQKBgC1fkqgtDDxQzrabSmmiqXthcPXxFdsYqnSNlFgba0uaAp9LREztSrX8
-QhwSoSwHVmjBvR6SybLYdsZ9Efj/w7XBejOOcS44MOoHYYFdsP7W47Ao5QFqvDoI
-oqyQ1R73cF9WX6obRQwH4P3DvcsBebOjvjMX9mljKtpJMc9KqrGc
------END RSA PRIVATE KEY-----`)
-
 var caCert = []byte(`-----BEGIN CERTIFICATE-----
 MIIDFzCCAf+gAwIBAgIJAJlL10mfdZraMA0GCSqGSIb3DQEBCwUAMCExHzAdBgNV
 BAMMFndlYmhvb2tfaW1hZ2Vwb2xpY3lfY2EwIBcNMTYwODEyMjAyMjUwWhgPMjI5
@@ -69,34 +41,6 @@ ljW5xekKRh4uzP85X7rEgrFen/my5Fs/cylkFvYIiZwgn6NLgW3BNi+m31XIfU0S
 xIbgh4UH0dwc6Zk8WUwFud4GXj6OyGneMGKB
 -----END CERTIFICATE-----`)
 
-var badCAKey = []byte(`-----BEGIN RSA PRIVATE KEY-----
-MIIEpQIBAAKCAQEAnKpC89q4/H+Xg91xI+GLhkrpJrO4n3nw0+/EQUoF9qwLtEDk
-mJp6ymUulwJgfvJwHOsUYqQB6jMKfXyqeSR24ssjjF9LTKhaQMZOGcW5Mshi04Ie
-USX93wDZwbWwqihVSqWaMpmf3JByeldnXNtc29Ik6NwqZcNWW5kEsSszheLhOU4i
-ZcRUlovwMYhHX37vQCQ1aygMaIMgBOb/vogSNxumqPKS4WdWsjss6LmEPnm350e+
-+9cb6RAfrDlOaj32VbLEp500SfBpZeCuyc5v81X12HT4V0qmsqIZ79tIgrqAaPxE
-D/HJXPpH64EAr23bR9dMPLXTh6w2yYWu+NGYywIDAQABAoIBAQCE/CZPN1gVxf0I
-i12x9o/oVAhruN08Sld6oCm4viwnws1AmmExhNg8m/0bZIIi4Ir4kThBrzSM5/y8
-nqlaofBk/cjULEQP80yBdZPwXp2hlOYG4on3mkdRGDjALQmktw4HimFFGJDRuq/i
-V/U+plrBojWAkPtQXKsen9qSxbg7qhI6KZyUQKExIHhsCfmE1ZzGx+/bgLVJEagi
-7zzZdAj2BzdoCk8yySAAsZG+pNSnd8gs5EzzRJ1RXanwxPSeEG/guX9YhLgLhhFu
-XzXngJDKVVhz4F2TfxtqIvZYvTMNh0R1OE0OUO2P88M837KKk5BHvW9oqYKZTUFV
-MC9k5No5AoGBAMtUBp8UcYZy+yetOAK2iGaEYwuWx8vwjY0c1POWun2Hny0nYxTQ
-WxXXqKaJydxZ+DlD3XuRKmMlKZQsp+bzuL5ukWN/ipO5tgQQfuKOZqVwvL19GkFi
-+Qr70G/TvYT/rv6A4s6XqbG4xt+7c2gf/XSghyoIyq1uwOcNNtrMdM/tAoGBAMU/
-tYc4d+vAl7hd8TwhFiZiC3N84C1HwsPVj38uqQI/j8boB21Bhpw6HHzq+VdVPfvp
-zk5e8AiQdSpitM7pBVmLpoRdTQjdlUDFRUi4TdJwfp5P7dXM8D6swNQ9f9w180na
-5ewu16PSC+sh19wAl04KwOmiDqZujJrBgWnFcESXAoGBALGofoybAUK3zqlxWcJN
-GUtyG1Sx72tLiXMmIQ+hwNsUGEoM4y75isy//ZVeSammVxQ6Lxjb00yD2RumFSLg
-C6kg1Ro6A6xmFRriCuwL/rZJljB/UeSWBQLK2eoL+clu2sl3djWLIPOvft1YXVM6
-uGwiI1fgDK+TWSvJSQfOo7ZVAoGBAK+A6DvQeqNBUb2xmJsvtU2hnx661Zx0ZU9q
-DavUEHz3oS4R9cm4q9UFv6NGT2Tta6FhfzcsMdbs8dMs0EPqAeCS6S6M9aYVwl9H
-J0Z09olvnrmt1KiPGJQrkcdGkSWWu0nTgxCK/UO9+OzVyALwY7AE0XEPyIk9g82O
-r181VZcxAoGANY2QGYrNtfa++o2B0O4qskKxhYEeCnZPptmjVO0oHOx2YSDQXK3K
-B0evCQ7ylvMnobNLjp9bqD14a0M86QjRlpSg1vHUhBsETZICc+E0UgV28CdWgYtt
-urARDE9ZpLVSRfPVAitC1I76pZwevsbQ9TeS2p0cWQpYYKmBtGpkdug=
------END RSA PRIVATE KEY-----`)
-
 var badCACert = []byte(`-----BEGIN CERTIFICATE-----
 MIIDFzCCAf+gAwIBAgIJANQEJyMW4HFZMA0GCSqGSIb3DQEBCwUAMCExHzAdBgNV
 BAMMFndlYmhvb2tfaW1hZ2Vwb2xpY3lfY2EwIBcNMTYwODEyMjAyMjUwWhgPMjI5
diff --git a/test/e2e/network/ingress.go b/test/e2e/network/ingress.go
index b97ef7ad85e..a97b5be6f3d 100644
--- a/test/e2e/network/ingress.go
+++ b/test/e2e/network/ingress.go
@@ -48,7 +48,6 @@ import (
 
 const (
 	negUpdateTimeout        = 2 * time.Minute
-	instanceGroupAnnotation = "ingress.gcp.kubernetes.io/instance-groups"
 )
 
 var _ = common.SIGDescribe("Loadbalancing: L7", func() {
diff --git a/test/e2e/storage/drivers/csi-test/mock/service/service.go b/test/e2e/storage/drivers/csi-test/mock/service/service.go
index 3da7b22b6d6..45c7493a6f5 100644
--- a/test/e2e/storage/drivers/csi-test/mock/service/service.go
+++ b/test/e2e/storage/drivers/csi-test/mock/service/service.go
@@ -157,7 +157,6 @@ const (
 	gib    int64 = mib * 1024
 	gib100 int64 = gib * 100
 	tib    int64 = gib * 1024
-	tib100 int64 = tib * 100
 )
 
 func (s *service) newVolume(name string, capcity int64) csi.Volume {