pkg/k8s/apis: support for preshared keys in peers

This commit adds support for defining preshared keys when declaring a
new Peer CRD. This preshared key will be used whenever the nodes in the
Kilo mesh communicate with that peer.

Signed-off-by: Lucas Servén Marín <lserven@gmail.com>

pkg/k8s/apis/kilo/v1alpha1/openapi_generated.go

@@ -304,9 +304,16 @@ func schema_k8s_apis_kilo_v1alpha1_PeerSpec(ref common.ReferenceCallback) common
 							Format:      "int32",
 						},
 					},
+					"presharedKey": {
+						SchemaProps: spec.SchemaProps{
+							Description: "PresharedKey is the optional symmetric encryption key for the peer.",
+							Type:        []string{"string"},
+							Format:      "",
+						},
+					},
 					"publicKey": {
 						SchemaProps: spec.SchemaProps{
-							Description: "PublicKey is the WireGuard public key for the node.",
+							Description: "PublicKey is the WireGuard public key for the peer.",
 							Type:        []string{"string"},
 							Format:      "",
 						},

pkg/k8s/apis/kilo/v1alpha1/types.go

@@ -72,7 +72,10 @@ type PeerSpec struct {
 	// disables the feature.
 	// +optional
 	PersistentKeepalive int `json:"persistentKeepalive,omitempty"`
-	// PublicKey is the WireGuard public key for the node.
+	// PresharedKey is the optional symmetric encryption key for the peer.
+	// +optional
+	PresharedKey string `json:"presharedKey"`
+	// PublicKey is the WireGuard public key for the peer.
 	PublicKey string `json:"publicKey"`
 }