x509: certificate signed by unknown authority Minikube cluster

I deployed a single node minikube cluster with minikube start --vm-driver=none means running on the bare metal which is a VM. I deploy my own custom scheduler and after running that scheduler I am facing this error

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<code> k8s.io/client-go/informers/factory.go:134: Failed to watch *v1.PersistentVolumeClaim: failed to list *v1.PersistentVolumeClaim: Get "https://172.2.X.X:8443/api/v1/persistentvolumeclaims?limit=500&resourceVersion=0": x509: certificate signed by unknown authority
</code>
<code> k8s.io/client-go/informers/factory.go:134: Failed to watch *v1.PersistentVolumeClaim: failed to list *v1.PersistentVolumeClaim: Get "https://172.2.X.X:8443/api/v1/persistentvolumeclaims?limit=500&resourceVersion=0": x509: certificate signed by unknown authority </code>
  k8s.io/client-go/informers/factory.go:134: Failed to watch *v1.PersistentVolumeClaim: failed to list *v1.PersistentVolumeClaim: Get "https://172.2.X.X:8443/api/v1/persistentvolumeclaims?limit=500&resourceVersion=0": x509: certificate signed by unknown authority

I looked in to this issue which have same issue approximately but I did not find the solution from it. I know that the error is due to Kube API not able to authorize the request from the scheduler? but I didnt change much on the default kube-schduler.yaml file just add my image etc, but it gives error when I run mine schduelr. The kube-schduler.yaml is

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<code>apiVersion: v1
kind: Pod
metadata:
creationTimestamp: null
labels:
component: kube-scheduler
tier: control-plane
name: kube-scheduler
namespace: kube-system
spec:
containers:
- command:
- kube-scheduler
- --authentication-kubeconfig=/etc/kubernetes/scheduler.conf
- --authorization-kubeconfig=/etc/kubernetes/scheduler.conf
- --bind-address=127.0.0.1
- --kubeconfig=/etc/kubernetes/scheduler.conf
- --leader-elect=false
- --master=https://172.22.174.151:8443
- --config=/etc/kubernetes/pid-config.yaml
- --v=4
image: localhost:5000/scheduler-plugins/kube-scheduler:latest
imagePullPolicy: IfNotPresent
livenessProbe:
failureThreshold: 8
httpGet:
host: 127.0.0.1
path: /healthz
port: 10259
scheme: HTTPS
initialDelaySeconds: 10
periodSeconds: 10
timeoutSeconds: 15
name: kube-scheduler
resources:
requests:
cpu: 100m
startupProbe:
failureThreshold: 24
httpGet:
host: 127.0.0.1
path: /healthz
port: 10259
scheme: HTTPS
initialDelaySeconds: 10
periodSeconds: 10
timeoutSeconds: 15
volumeMounts:
- mountPath: /etc/kubernetes/scheduler.conf
name: kubeconfig
readOnly: true
- mountPath: /etc/kubernetes/pid-config.yaml
name: pid-config
readOnly: true
env:
- name: KUBERNETES_MASTER
value: "https://172.2.X.X:8443"
hostNetwork: true
priority: 2000001000
priorityClassName: system-node-critical
securityContext:
seccompProfile:
type: RuntimeDefault
volumes:
- hostPath:
path: /etc/kubernetes/scheduler.conf
type: FileOrCreate
name: kubeconfig
- hostPath:
path: /etc/kubernetes/pid-config.yaml
type: File
name: pid-config
status: {}
</code>
<code>apiVersion: v1 kind: Pod metadata: creationTimestamp: null labels: component: kube-scheduler tier: control-plane name: kube-scheduler namespace: kube-system spec: containers: - command: - kube-scheduler - --authentication-kubeconfig=/etc/kubernetes/scheduler.conf - --authorization-kubeconfig=/etc/kubernetes/scheduler.conf - --bind-address=127.0.0.1 - --kubeconfig=/etc/kubernetes/scheduler.conf - --leader-elect=false - --master=https://172.22.174.151:8443 - --config=/etc/kubernetes/pid-config.yaml - --v=4 image: localhost:5000/scheduler-plugins/kube-scheduler:latest imagePullPolicy: IfNotPresent livenessProbe: failureThreshold: 8 httpGet: host: 127.0.0.1 path: /healthz port: 10259 scheme: HTTPS initialDelaySeconds: 10 periodSeconds: 10 timeoutSeconds: 15 name: kube-scheduler resources: requests: cpu: 100m startupProbe: failureThreshold: 24 httpGet: host: 127.0.0.1 path: /healthz port: 10259 scheme: HTTPS initialDelaySeconds: 10 periodSeconds: 10 timeoutSeconds: 15 volumeMounts: - mountPath: /etc/kubernetes/scheduler.conf name: kubeconfig readOnly: true - mountPath: /etc/kubernetes/pid-config.yaml name: pid-config readOnly: true env: - name: KUBERNETES_MASTER value: "https://172.2.X.X:8443" hostNetwork: true priority: 2000001000 priorityClassName: system-node-critical securityContext: seccompProfile: type: RuntimeDefault volumes: - hostPath: path: /etc/kubernetes/scheduler.conf type: FileOrCreate name: kubeconfig - hostPath: path: /etc/kubernetes/pid-config.yaml type: File name: pid-config status: {} </code>
apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: null
  labels:
    component: kube-scheduler
    tier: control-plane
  name: kube-scheduler
  namespace: kube-system
spec:
  containers:
  - command:
    - kube-scheduler
    - --authentication-kubeconfig=/etc/kubernetes/scheduler.conf
    - --authorization-kubeconfig=/etc/kubernetes/scheduler.conf
    - --bind-address=127.0.0.1
    - --kubeconfig=/etc/kubernetes/scheduler.conf
    - --leader-elect=false
    - --master=https://172.22.174.151:8443
    - --config=/etc/kubernetes/pid-config.yaml
    - --v=4
    image: localhost:5000/scheduler-plugins/kube-scheduler:latest
    imagePullPolicy: IfNotPresent
    livenessProbe:
      failureThreshold: 8
      httpGet:
        host: 127.0.0.1
        path: /healthz
        port: 10259
        scheme: HTTPS
      initialDelaySeconds: 10
      periodSeconds: 10
      timeoutSeconds: 15
    name: kube-scheduler
    resources:
      requests:
        cpu: 100m
    startupProbe:
      failureThreshold: 24
      httpGet:
        host: 127.0.0.1
        path: /healthz
        port: 10259
        scheme: HTTPS
      initialDelaySeconds: 10
      periodSeconds: 10
      timeoutSeconds: 15
    volumeMounts:
    - mountPath: /etc/kubernetes/scheduler.conf
      name: kubeconfig
      readOnly: true
    - mountPath: /etc/kubernetes/pid-config.yaml
      name: pid-config
      readOnly: true
    env:
    - name: KUBERNETES_MASTER
      value: "https://172.2.X.X:8443"
  hostNetwork: true
  priority: 2000001000
  priorityClassName: system-node-critical
  securityContext:
    seccompProfile:
      type: RuntimeDefault
  volumes:
  - hostPath:
      path: /etc/kubernetes/scheduler.conf
      type: FileOrCreate
    name: kubeconfig
  - hostPath:
      path: /etc/kubernetes/pid-config.yaml
      type: File
    name: pid-config
status: {}

But when I curl the link it do accessable

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<code>curl --cacert /var/lib/minikube/certs/ca.crt -H "Authorization: Bearer $TOKEN" https://172.2.X.X:8443/api/v1/nodes -v
* Trying 172.2.X.X:8443...
* Connected to 172.2.X.X (172.2.X.X) port 8443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* CAfile: /var/lib/minikube/certs/ca.crt
* CApath: /etc/ssl/certs
* TLSv1.0 (OUT), TLS header, Certificate Status (22):
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS header, Certificate Status (22):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS header, Finished (20):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Request CERT (13):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, CERT verify (15):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Finished (20):
* TLSv1.2 (OUT), TLS header, Finished (20):
* TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.3 (OUT), TLS handshake, Certificate (11):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.3 (OUT), TLS handshake, Finished (20):
* SSL connection using TLSv1.3 / TLS_AES_128_GCM_SHA256
* ALPN, server accepted to use h2
* Server certificate:
* subject: O=system:masters; CN=minikube
* start date: Apr 28 10:05:25 2024 GMT
* expire date: Apr 29 10:05:25 2027 GMT
* subjectAltName: host "172.22.174.151" matched cert's IP address!
* issuer: CN=minikubeCA
* SSL certificate verify ok.
* Using HTTP2, server supports multiplexing
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* Using Stream ID: 1 (easy handle 0x60b3af5afeb0)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET /api/v1/nodes HTTP/2
> Host: 172.2.X.X:8443
> user-agent: curl/7.81.0
> accept: */*
> authorization: Bearer
>
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Newsession Ticket (4):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 403
< audit-id: a5478c3b-3e6d-4139-9f2a-0219b9834622
< cache-control: no-cache, private
< content-type: application/json
< x-content-type-options: nosniff
< x-kubernetes-pf-flowschema-uid: 12d224eb-22db-4478-8338-bbda45f8da9f
< x-kubernetes-pf-prioritylevel-uid: 3c8f01f4-c7e2-4dbe-bf72-29ad82e99dfc
< content-length: 297
< date: Wed, 01 May 2024 14:23:42 GMT
<
* TLSv1.2 (IN), TLS header, Supplemental data (23):
{
"kind": "Status",
"apiVersion": "v1",
"metadata": {},
"status": "Failure",
"message": "nodes is forbidden: User "system:anonymous" cannot list resource "nodes" in API group "" at the cluster scope",
"reason": "Forbidden",
"details": {
"kind": "nodes"
},
"code": 403
* Connection #0 to host 172.2.x.x left intact
</code>
<code>curl --cacert /var/lib/minikube/certs/ca.crt -H "Authorization: Bearer $TOKEN" https://172.2.X.X:8443/api/v1/nodes -v * Trying 172.2.X.X:8443... * Connected to 172.2.X.X (172.2.X.X) port 8443 (#0) * ALPN, offering h2 * ALPN, offering http/1.1 * CAfile: /var/lib/minikube/certs/ca.crt * CApath: /etc/ssl/certs * TLSv1.0 (OUT), TLS header, Certificate Status (22): * TLSv1.3 (OUT), TLS handshake, Client hello (1): * TLSv1.2 (IN), TLS header, Certificate Status (22): * TLSv1.3 (IN), TLS handshake, Server hello (2): * TLSv1.2 (IN), TLS header, Finished (20): * TLSv1.2 (IN), TLS header, Supplemental data (23): * TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8): * TLSv1.2 (IN), TLS header, Supplemental data (23): * TLSv1.3 (IN), TLS handshake, Request CERT (13): * TLSv1.2 (IN), TLS header, Supplemental data (23): * TLSv1.3 (IN), TLS handshake, Certificate (11): * TLSv1.2 (IN), TLS header, Supplemental data (23): * TLSv1.3 (IN), TLS handshake, CERT verify (15): * TLSv1.2 (IN), TLS header, Supplemental data (23): * TLSv1.3 (IN), TLS handshake, Finished (20): * TLSv1.2 (OUT), TLS header, Finished (20): * TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1): * TLSv1.2 (OUT), TLS header, Supplemental data (23): * TLSv1.3 (OUT), TLS handshake, Certificate (11): * TLSv1.2 (OUT), TLS header, Supplemental data (23): * TLSv1.3 (OUT), TLS handshake, Finished (20): * SSL connection using TLSv1.3 / TLS_AES_128_GCM_SHA256 * ALPN, server accepted to use h2 * Server certificate: * subject: O=system:masters; CN=minikube * start date: Apr 28 10:05:25 2024 GMT * expire date: Apr 29 10:05:25 2027 GMT * subjectAltName: host "172.22.174.151" matched cert's IP address! * issuer: CN=minikubeCA * SSL certificate verify ok. * Using HTTP2, server supports multiplexing * Connection state changed (HTTP/2 confirmed) * Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0 * TLSv1.2 (OUT), TLS header, Supplemental data (23): * TLSv1.2 (OUT), TLS header, Supplemental data (23): * TLSv1.2 (OUT), TLS header, Supplemental data (23): * Using Stream ID: 1 (easy handle 0x60b3af5afeb0) * TLSv1.2 (OUT), TLS header, Supplemental data (23): > GET /api/v1/nodes HTTP/2 > Host: 172.2.X.X:8443 > user-agent: curl/7.81.0 > accept: */* > authorization: Bearer > * TLSv1.2 (IN), TLS header, Supplemental data (23): * TLSv1.3 (IN), TLS handshake, Newsession Ticket (4): * TLSv1.2 (IN), TLS header, Supplemental data (23): * TLSv1.2 (OUT), TLS header, Supplemental data (23): * TLSv1.2 (IN), TLS header, Supplemental data (23): * TLSv1.2 (IN), TLS header, Supplemental data (23): * TLSv1.2 (IN), TLS header, Supplemental data (23): < HTTP/2 403 < audit-id: a5478c3b-3e6d-4139-9f2a-0219b9834622 < cache-control: no-cache, private < content-type: application/json < x-content-type-options: nosniff < x-kubernetes-pf-flowschema-uid: 12d224eb-22db-4478-8338-bbda45f8da9f < x-kubernetes-pf-prioritylevel-uid: 3c8f01f4-c7e2-4dbe-bf72-29ad82e99dfc < content-length: 297 < date: Wed, 01 May 2024 14:23:42 GMT < * TLSv1.2 (IN), TLS header, Supplemental data (23): { "kind": "Status", "apiVersion": "v1", "metadata": {}, "status": "Failure", "message": "nodes is forbidden: User "system:anonymous" cannot list resource "nodes" in API group "" at the cluster scope", "reason": "Forbidden", "details": { "kind": "nodes" }, "code": 403 * Connection #0 to host 172.2.x.x left intact </code>
curl --cacert /var/lib/minikube/certs/ca.crt -H "Authorization: Bearer $TOKEN" https://172.2.X.X:8443/api/v1/nodes -v
*   Trying 172.2.X.X:8443...
* Connected to 172.2.X.X (172.2.X.X) port 8443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
*  CAfile: /var/lib/minikube/certs/ca.crt
*  CApath: /etc/ssl/certs
* TLSv1.0 (OUT), TLS header, Certificate Status (22):
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS header, Certificate Status (22):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS header, Finished (20):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Request CERT (13):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, CERT verify (15):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Finished (20):
* TLSv1.2 (OUT), TLS header, Finished (20):
* TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.3 (OUT), TLS handshake, Certificate (11):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.3 (OUT), TLS handshake, Finished (20):
* SSL connection using TLSv1.3 / TLS_AES_128_GCM_SHA256
* ALPN, server accepted to use h2
* Server certificate:
*  subject: O=system:masters; CN=minikube
*  start date: Apr 28 10:05:25 2024 GMT
*  expire date: Apr 29 10:05:25 2027 GMT
*  subjectAltName: host "172.22.174.151" matched cert's IP address!
*  issuer: CN=minikubeCA
*  SSL certificate verify ok.
* Using HTTP2, server supports multiplexing
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* Using Stream ID: 1 (easy handle 0x60b3af5afeb0)
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
> GET /api/v1/nodes HTTP/2
> Host: 172.2.X.X:8443
> user-agent: curl/7.81.0
> accept: */*
> authorization: Bearer 
> 
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.3 (IN), TLS handshake, Newsession Ticket (4):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.2 (OUT), TLS header, Supplemental data (23):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
* TLSv1.2 (IN), TLS header, Supplemental data (23):
< HTTP/2 403 
< audit-id: a5478c3b-3e6d-4139-9f2a-0219b9834622
< cache-control: no-cache, private
< content-type: application/json
< x-content-type-options: nosniff
< x-kubernetes-pf-flowschema-uid: 12d224eb-22db-4478-8338-bbda45f8da9f
< x-kubernetes-pf-prioritylevel-uid: 3c8f01f4-c7e2-4dbe-bf72-29ad82e99dfc
< content-length: 297
< date: Wed, 01 May 2024 14:23:42 GMT
< 
* TLSv1.2 (IN), TLS header, Supplemental data (23):
{
  "kind": "Status",
  "apiVersion": "v1",
  "metadata": {},
  "status": "Failure",
  "message": "nodes is forbidden: User "system:anonymous" cannot list resource "nodes" in API group "" at the cluster scope",
  "reason": "Forbidden",
  "details": {
    "kind": "nodes"
  },
  "code": 403
* Connection #0 to host 172.2.x.x left intact

Anyone had face this error before, or any clue for the right direction to look at?
Thank you

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