Add ssh private key to CLI (#2265)

internal/api/genapi/input.go

@@ -469,6 +469,21 @@ var inputStructs = []*structInfo{
 			},
 		},
 	},
+	{
+		inProto:     &credentials.SshPrivateKeyAttributes{},
+		outFile:     "credentials/ssh_private_key_attributes.gen.go",
+		subtypeName: "SshPrivateKeyCredential",
+		fieldOverrides: []fieldInfo{
+			{
+				Name:        "Username",
+				SkipDefault: true,
+			},
+			{
+				Name:        "PrivateKey",
+				SkipDefault: true,
+			},
+		},
+	},
 	{
 		inProto: &credentials.Credential{},
 		outFile: "credentials/credential.gen.go",