Cannot start kube-controller-manager service

General Discussions
1

I am manually installing Kubernetes master components and when it comes to kube-controller-manager, I am not able to start this service.

Cluster information:

Kubernetes version: 1.26
Cloud being used: (put bare-metal if not on a public cloud) VM
Installation method: Manual
Host OS: Oracle Linux 8
CNI and version: 1.26
CRI and version: 1.7.0

Here is the systemd file, it starts the service but then in the next second it fails again, all the certificate files are put properly in place:

[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes

[Service]
ExecStart=/usr/bin/kube-controller-manager \
  --bind-address=127.0.0.1 \
  --service-cluster-ip-range=10.32.0.0/24 \
  --allocate-node-cidrs=true \
  --cluster-cidr=10.200.0.0/16 \
  --cluster-name=poc-k8s \
  --kubeconfig=/var/lib/kubernetes/kube-controller-manager.kubeconfig \
  --authentication-kubeconfig=/var/lib/kubernetes/kube-controller-manager.kubeconfig \
  --authorization-kubeconfig=/var/lib/kubernetes/kube-controller-manager.kubeconfig \
  --leader-elect=true \
  --cluster-signing-cert-file=/var/lib/kubernetes/ca.crt \
  --cluster-signing-key-file=/var/lib/kubernetes/ca.pem \
  --root-ca-file=/var/lib/kubernetes/ca.crt \
  --service-account-private-key-file=/var/lib/kubernetes/service-account.pem \
  --use-service-account-credentials=true \
  --v=2
Restart=on-failure
RestartSec=5