kubectl -n cert-manager describe deployment cert-manager 
Name:                   cert-manager
Namespace:              cert-manager
CreationTimestamp:      Fri, 29 Oct 2021 09:00:31 +0200
Labels:                 app=cert-manager
                        app.kubernetes.io/component=controller
                        app.kubernetes.io/instance=cert-manager
                        app.kubernetes.io/name=cert-manager
Annotations:            deployment.kubernetes.io/revision: 1
Selector:               app.kubernetes.io/component=controller,app.kubernetes.io/instance=cert-manager,app.kubernetes.io/name=cert-manager
Replicas:               1 desired | 1 updated | 1 total | 1 available | 0 unavailable
StrategyType:           RollingUpdate
MinReadySeconds:        0
RollingUpdateStrategy:  25% max unavailable, 25% max surge
Pod Template:
  Labels:           app=cert-manager
                    app.kubernetes.io/component=controller
                    app.kubernetes.io/instance=cert-manager
                    app.kubernetes.io/name=cert-manager
  Annotations:      prometheus.io/path: /metrics
                    prometheus.io/port: 9402
                    prometheus.io/scrape: true
  Service Account:  cert-manager
  Containers:
   cert-manager:
    Image:      quay.io/jetstack/cert-manager-controller:v1.0.4
    Port:       9402/TCP
    Host Port:  0/TCP
    Args:
      --v=2
      --cluster-resource-namespace=$(POD_NAMESPACE)
      --leader-election-namespace=kube-system
    Environment:
      POD_NAMESPACE:   (v1:metadata.namespace)
    Mounts:
      /etc/ssl/certs/internal-ca.pem from ca-internal-truststore (rw,path="internal-ca.pem")
  Volumes:
   ca-internal-truststore:
    Type:      ConfigMap (a volume populated by a ConfigMap)
    Name:      ca-internal-truststore
    Optional:  false
Conditions:
  Type           Status  Reason
  ----           ------  ------
  Progressing    True    NewReplicaSetAvailable
  Available      True    MinimumReplicasAvailable
OldReplicaSets:  <none>
NewReplicaSet:   cert-manager-774df7cd7f (1/1 replicas created)
Events:
  Type    Reason             Age   From                   Message
  ----    ------             ----  ----                   -------
  Normal  ScalingReplicaSet  45m   deployment-controller  Scaled up replica set cert-manager-774df7cd7f to 1