hi. previously you give me this solution:
Corrected Tutorial: Setting Up Harbor with Let's Encrypt Certificates Using DNS-01 Challenge via Cloudflare

This tutorial will guide you through setting up Harbor with Let's Encrypt certificates using the DNS-01 challenge via Cloudflare. This approach ensures that your Harbor service can securely obtain SSL certificates without exposing it directly to the internet.
Prerequisites

    Kubernetes Cluster: Ensure you have a running Kubernetes cluster.
    Helm Installed: Make sure Helm is installed on your local machine.
    MetalLB Installed: You should have MetalLB configured as the LoadBalancer for your services.
    Cloudflare Account: You'll need a Cloudflare account with access to manage DNS records for your domain.
    Domain Name: A domain managed by Cloudflare.

Step 1: Set Up Cloudflare API Token

To allow Cert-Manager to perform DNS-01 challenges, you need an API token with permissions to manage DNS records.

    Log in to Cloudflare and navigate to your account.
    Go to My Profile > API Tokens.
    Click on Create Token.
    Select Edit zone DNS template or create a custom token with the following permissions:
        Permissions:
            Zone: DNS: Edit
        Zone Resources:
            Include All zones or specify particular zones as needed.
    Save the token securely; you'll need it later.

Step 2: Install Cert-Manager

Cert-Manager automates the management and issuance of TLS certificates.

    Add the Jetstack Helm repository:

helm repo add jetstack https://charts.jetstack.io
helm repo update

Install Cert-Manager:

    kubectl apply --validate=false -f https://github.com/jetstack/cert-manager/releases/download/v1.12.0/cert-manager.crds.yaml
    helm install cert-manager jetstack/cert-manager --namespace cert-manager --create-namespace --version v1.12.0

        Note: Replace v1.12.0 with the latest Cert-Manager version if necessary.

Step 3: Configure Cloudflare Credentials in Kubernetes

Create a Kubernetes Secret with your Cloudflare API token:

kubectl create secret generic cloudflare-api-token-secret \
  --from-literal=api-token=YOUR_CLOUDFLARE_API_TOKEN \
  --namespace cert-manager

Replace YOUR_CLOUDFLARE_API_TOKEN with the token you created earlier.
Step 4: Configure ClusterIssuer for Let's Encrypt

Create a ClusterIssuer resource that uses the DNS-01 challenge with Cloudflare.

# cluster-issuer.yaml
apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
  name: letsencrypt-dns
spec:
  acme:
    # You must replace this email address with your own.
    email: your-email@example.com
    server: https://acme-v02.api.letsencrypt.org/directory
    privateKeySecretRef:
      name: letsencrypt-dns
    solvers:
      - dns01:
          cloudflare:
            email: your-email@example.com
            apiTokenSecretRef:
              name: cloudflare-api-token-secret
              key: api-token

Apply the ClusterIssuer:

kubectl apply -f cluster-issuer.yaml

Ensure you replace your-email@example.com with your actual email address.
Step 5: Prepare Harbor values.yaml for Helm Installation

Below is a sample values.yaml configuration for installing Harbor with Helm, integrating Cert-Manager for TLS certificates using Let's Encrypt via Cloudflare.

# values.yaml
expose:
  type: loadBalancer
  tls:
    enabled: true
    certSource: secret
    secret:
      secretName: harbor-tls

externalURL: https://your.domain.com

harborAdminPassword: Harbor12345

# Optionally, configure Ingress settings if needed
# ingress:
#   enabled: false

# Configure persistence as needed
persistence:
  enabled: true
  # Define storage classes and sizes as required

# Optionally, specify additional configurations
# For example, database, cache settings, etc.

Key Points in values.yaml:

    expose.type: Set to loadBalancer to use MetalLB.
    tls.enabled: Enables TLS for Harbor.
    tls.certSource: Set to secret to use a Kubernetes secret for the certificate.
    tls.secret.secretName: The name of the Kubernetes Secret where the certificate will be stored (harbor-tls in this case).
    externalURL: The URL through which Harbor is accessed (e.g., https://your.domain.com). Replace with your actual domain.

    Note: Cert-Manager will automatically create the harbor-tls secret once the certificate is issued.

Step 6: Deploy Harbor Using Helm

    Add the Harbor Helm repository:

helm repo add harbor https://helm.goharbor.io
helm repo update

Create a namespace for Harbor (if not already existing):

kubectl create namespace harbor

Install Harbor with your values.yaml:

helm install harbor harbor/harbor --namespace harbor -f values.yaml

If Harbor is already installed and you want to upgrade:

    helm upgrade harbor harbor/harbor --namespace harbor -f values.yaml

Step 7: Verify Certificate Issuance

    Monitor the Certificate Request:

kubectl get certificates -A
kubectl describe certificate harbor-tls -n harbor

Check Cert-Manager Pods:

Ensure that Cert-Manager is running and not encountering errors.

kubectl get pods -n cert-manager

Verify TLS Certificate:

Once the certificate is issued, verify that the harbor-tls Secret contains the TLS certificate and key.

    kubectl get secret harbor-tls -n harbor -o yaml

Step 8: Accessing Harbor

After successful deployment, access Harbor via the externalURL you specified (e.g., https://your.domain.com). The connection should now be secured with a valid Let's Encrypt certificate managed by Cert-Manager, eliminating the x509: certificate signed by unknown authority error.
Additional Notes

    Cloudflare API Token Security: Ensure that the API token has only the necessary permissions and is stored securely within Kubernetes Secrets.
    ACME Rate Limits: Be aware of Let's Encrypt's rate limits, especially during testing. Use the staging server for initial tests by changing the server field in the ClusterIssuer to https://acme-staging-v02.api.letsencrypt.org/directory.
    Renewal: Cert-Manager automatically handles certificate renewals before expiration.
    Firewall and Networking: Ensure that your Kubernetes cluster can communicate with Let's Encrypt's ACME servers and that DNS-01 challenges can be performed via Cloudflare DNS API.

Summary

By following the above steps, you've configured Harbor to use Let's Encrypt certificates via Cert-Manager with Cloudflare DNS-01 challenges. This setup ensures your Harbor instance is secured without exposing it unnecessarily, leveraging the power of Kubernetes, Helm, and Cert-Manager for automated TLS management.

This corrected version removes the incorrect certManager.enabled option and instead uses the correct approach of configuring Cert-Manager to issue certificates and storing them in a Kubernetes secret, which is then referenced in the Harbor Helm chart.
do i need to specifiacally create a certificate like ths
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
  name: harbor-tls
  namespace: harbor
spec:
  secretName: harbor-tls
  issuerRef:
    name: letsencrypt-prod
    kind: ClusterIssuer
  commonName: xxxx
  dnsNames:
  - xxxxx
? or cloudflare will do that automatically with this configuration?