Step 2: Install cert-manager

This step explains how to download and install cert-manager, required for Apigee hybrid to operate.

Installations on Anthos

You do not need to install cert-manager if you are performing a fresh installation on one of the following Anthos platforms:

Anthos on-premises - (VMware)
Anthos on Bare Metal

Anthos comes with its own version of cert-manager. Apigee can use this Anthos version of cert-manager. If it is installed in a namespace other than cert-manager, you will need to include the namespace with the certManager.namespace property in your overrides file. For more information about Anthos and cert-manager, see Conflicting cert-manager installation.

Installations on OpenShift

If you are installing Apigee hybrid on OpenShift, install cert-manager by following the instructions in Installation in the cert-manager documentation.

See a Known Issue about cert-manager version 1.10 on OpenShift.

Install cert-manager

Use the following command to install cert-manager v1.10.1 from GitHub.

kubectl apply --validate=false -f https://github.com/jetstack/cert-manager/releases/download/v1.10.1/cert-manager.yaml

You should see a response that the cert-manager namespace and several cert-manager resources have been created. For example:

customresourcedefinition.apiextensions.k8s.io/certificaterequests.cert-manager.io configured
customresourcedefinition.apiextensions.k8s.io/certificates.cert-manager.io configured
...
mutatingwebhookconfiguration.admissionregistration.k8s.io/cert-manager-webhook configured
validatingwebhookconfiguration.admissionregistration.k8s.io/cert-manager-webhook configured

Use the following command to verify the successful creation of cert-manager namespace and its corresponding components:

kubectl get all -n cert-manager -o wide

Your output should be similar to the following example. You should see pods for cert-manager, cert-manager-cainjector, and cert-manager-webhook.

  NAME                                          READY   STATUS    RESTARTS   AGE   IP           NODE                                                  NOMINATED NODE   READINESS GATES
  pod/cert-manager-abcd1234-7hkt9               1/1     Running   0          35s   10.20.x.x    gke-hybrid-on-apigee-data-abcd1234-3d54              
  pod/cert-manager-cainjector-abcd1234-6lb4k    1/1     Running   0          35s   10.20.x.x    gke-hybrid-apigee-runtime-abcd1234-5hmn              
  pod/cert-manager-webhook-abcd1234-c8bg9       1/1     Running   0          35s   10.20.x.x    gke-hybrid-apigee-runtime-abcd1234-fk39              
   
  NAME                           TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)    AGE   SELECTOR
  service/cert-manager           ClusterIP   10.24.x.x              9402/TCP   35s   app.kubernetes.io/component=controller,app.kubernetes.io/instance=cert-manager,app.kubernetes.io/name=cert-manager
  service/cert-manager-webhook   ClusterIP   10.24.x.x              443/TCP    35s   app.kubernetes.io/component=webhook,app.kubernetes.io/instance=cert-manager,app.kubernetes.io/name=webhook
    
  NAME                                      READY   UP-TO-DATE   AVAILABLE   AGE   CONTAINERS                IMAGES                                             SELECTOR
  deployment.apps/cert-manager              1/1     1            1           35s   cert-manager-controller   quay.io/jetstack/cert-manager-controller:v1.10.1   app.kubernetes.io/component=controller,app.kubernetes.io/instance=cert-manager,app.kubernetes.io/name=cert-manager
  deployment.apps/cert-manager-cainjector   1/1     1            1           35s   cert-manager-cainjector   quay.io/jetstack/cert-manager-cainjector:v1.10.1   app.kubernetes.io/component=cainjector,app.kubernetes.io/instance=cert-manager,app.kubernetes.io/name=cainjector
  deployment.apps/cert-manager-webhook      1/1     1            1           35s   cert-manager-webhook      quay.io/jetstack/cert-manager-webhook:v1.10.1      app.kubernetes.io/component=webhook,app.kubernetes.io/instance=cert-manager,app.kubernetes.io/name=webhook
    
  NAME                                                DESIRED   CURRENT   READY   AGE   CONTAINERS                IMAGES                                             SELECTOR
  replicaset.apps/cert-manager-abcd1234                1         1         1       35s   cert-manager-controller   quay.io/jetstack/cert-manager-controller:v1.10.1   app.kubernetes.io/component=controller,app.kubernetes.io/instance=cert-manager,app.kubernetes.io/name=cert-manager,pod-template-hash=abcd1234
  replicaset.apps/cert-manager-cainjector-abcd1234     1         1         1       35s   cert-manager-cainjector   quay.io/jetstack/cert-manager-cainjector:v1.10.1   app.kubernetes.io/component=cainjector,app.kubernetes.io/instance=cert-manager,app.kubernetes.io/name=cainjector,pod-template-hash=abcd1234
  replicaset.apps/cert-manager-webhook-abcd1234        1         1         1       35s   cert-manager-webhook      quay.io/jetstack/cert-manager-webhook:v1.10.1      app.kubernetes.io/component=webhook,app.kubernetes.io/instance=cert-manager,app.kubernetes.io/name=webhook,pod-template-hash=abcd1234

Summary

You now have cert-manager installed, and you are ready to install the Apigee hybrid command-line tool on your local machine.

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