- Install the cert-manager CLI cmctl.
- Install a supported version of Kubernetes or OpenShift.
- Read Compatibility with Kubernetes Platform Providers if you are using Kubernetes on a cloud platform.
The CLI provides the simplest way of installing cert-manager:
$ cmctl x install
The command makes sure that the required
CustomResourceDefinitions are installed together with the cert-manager, cainjector and webhook components.
Under the hood, a procedure similar to the Helm install procedure is used.
You can also use
cmctl x install to customize the installation of cert-manager.
The example below shows how to tune the cert-manager installation by overwriting the default Helm values:
$ cmctl x install \--set prometheus.enabled=false \ # Example: disabling prometheus using a Helm parameter--set webhook.timeoutSeconds=4s # Example: changing the wehbook timeout using a Helm parameter
You can find a full list of the install parameters on cert-manager's ArtifactHub page. These are the same parameters that are available when using the Helm chart. Once you have deployed cert-manager, you can verify the installation.
The CLI also allows the user to output the templated manifest to
stdout, instead of installing the manifest on the cluster.
$ cmctl x install --dry-run > cert-manager.custom.yaml