Install cert-manager

This topic tells you how to install cert-manager from the Tanzu Application Platform (commonly known as TAP) package repository.

Note

Follow the steps in this topic if you do not want to use a profile to install cert-manager. For more information about profiles, see Components and installation profiles.

The cert-manager package installs cert-manager and, optionally, a number of ClusterIssuer.

To install cert-manager with a self-signed ClusterIssuer from the Tanzu Application Platform package repository:

1. List version information for the package by running:

   tanzu package available list cert-manager.tanzu.vmware.com -n tap-install
   

   For example:

   $ tanzu package available list cert-manager.tanzu.vmware.com -n tap-install
   / Retrieving package versions for cert-manager.tanzu.vmware.com...
     NAME                           VERSION           RELEASED-AT
     cert-manager.tanzu.vmware.com  2.0.0             ...
   

2. Discover available configuration for the package by running:

   tanzu package available get cert-manager.tanzu.vmware.com/2.0.0 --namespace tap-install --values-schema
   

   For example:

   $ tanzu package available get cert-manager.tanzu.vmware.com/2.0.0 --namespace tap-install --values-schema
   
   KEY                   DEFAULT  TYPE    DESCRIPTION
   certManager.pspNames  []       array   PodSecurityPolicy names which cert-manager is allowed to use
   issuers               []       array   The ClusterIssuers to install - default: []
   namespace                      string  Cert-manager's namespace - also used as its cluster resource namespace
   https://cert-manager.io/v1.9-docs/faq/cluster-resource/
   

3. Create a file named cert-manager-rbac.yaml by using the following sample:

   apiVersion: rbac.authorization.k8s.io/v1
   kind: ClusterRole
   metadata:
     name: cert-manager-tap-install-cluster-admin-role
   rules:
   - apiGroups:
     - '*'
     resources:
     - '*'
     verbs:
     - '*'
   ---
   apiVersion: rbac.authorization.k8s.io/v1
   kind: ClusterRoleBinding
   metadata:
     name: cert-manager-tap-install-cluster-admin-role-binding
   roleRef:
     apiGroup: rbac.authorization.k8s.io
     kind: ClusterRole
     name: cert-manager-tap-install-cluster-admin-role
   subjects:
   - kind: ServiceAccount
     name: cert-manager-tap-install-sa
     namespace: tap-install
   ---
   apiVersion: v1
   kind: ServiceAccount
   metadata:
     name: cert-manager-tap-install-sa
     namespace: tap-install
   

   Apply the configuration:

   kubectl apply -f cert-manager-rbac.yaml
   

4. Create a file named cert-manager-install.yaml by using the following sample:

   ---
   apiVersion: packaging.carvel.dev/v1alpha1
   kind: PackageInstall
   metadata:
     name: cert-manager
     namespace: tap-install
   spec:
     serviceAccountName: cert-manager-tap-install-sa
     packageRef:
       refName: cert-manager.tanzu.vmware.com
       versionSelection:
         constraints: "VERSION-NUMBER"
         prereleases: {}
     values:
       - secretRef:
           name: cert-manager-values
   
   ---
   apiVersion: v1
   kind: Secret
   metadata:
     name: cert-manager-values
     namespace: tap-install
   stringData:
     values.yaml: |
       issuers:
         - name: tap-ingress-selfsigned
           self_signed: {}
   

   Where:

   • VERSION-NUMBER is the version of the package listed earlier.
   • Secret cert-manager-values contains your configuration of the cert-manager package.

   Apply the configuration:

   kubectl apply -f cert-manager-install.yaml
   

5. Verify the package installation:

   tanzu package installed get cert-manager -n tap-install
   

   For example:

   $ tanzu package installed get cert-manager -n tap-install
   / Retrieving installation details for cert-manager...
   NAME:                    cert-manager
   PACKAGE-NAME:            cert-manager.tanzu.vmware.com
   PACKAGE-VERSION:         2.0.0
   STATUS:                  Reconcile succeeded
   CONDITIONS:              [{ReconcileSucceeded True}]
   USEFUL-ERROR-MESSAGE:
   

   Verify that STATUS is Reconcile succeeded

6. Verify that cert-manager is up and running:

   kubectl get deployment -n cert-manager
   

   For example:

   $ kubectl get deployment -n cert-manager
   NAME                      READY   UP-TO-DATE   AVAILABLE   AGE
   cert-manager              1/1     1            1           5m
   cert-manager-cainjector   1/1     1            1           5m
   cert-manager-webhook      1/1     1            1           5m
   

7. Verify that the self-signed ClusterIssuer is present:

   kubectl get clusterissuer
   

   For example:

   $ kubectl get clusterissuer
   NAME                               READY   AGE
   tap-ingress-selfsigned             True    5m
   tap-ingress-selfsigned-bootstrap   True    5m
   ...