3. Define Memcached API (Custom Resource Definition)

1. Update api/v1alpha1/memcached_types.go

   // MemcachedSpec defines the desired state of Memcached
   type MemcachedSpec struct {
       //+kubebuilder:validation:Minimum=0
       // Size is the size of the memcached deployment
       Size int32 `json:"size"`
   }
   
   // MemcachedStatus defines the observed state of Memcached
   type MemcachedStatus struct {
       // Nodes are the names of the memcached pods
       Nodes []string `json:"nodes"`
   }
   

2. make generate -> controller-gen to update api/v1alpha1/zz_generated.deepcopy.go

3. make manifests -> Make CRD manifests
4. Update config/samples/cache_v1alpha1_memcached.yaml with size: 3