feat(ko): Enable the ko builder in the API

docs/content/en/api/skaffold.swagger.json

@@ -3022,10 +3022,11 @@
         "BUILDPACKS",
         "CUSTOM",
         "KANIKO",
-        "DOCKER"
+        "DOCKER",
+        "KO"
       ],
       "default": "UNKNOWN_BUILDER_TYPE",
-      "description": "Enum indicating builders used\n- UNKNOWN_BUILDER_TYPE: Could not determine builder type\n - JIB: JIB Builder\n - BAZEL: Bazel Builder\n - BUILDPACKS: Buildpacks Builder\n - CUSTOM: Custom Builder\n - KANIKO: Kaniko Builder\n - DOCKER: Docker Builder"
+      "description": "Enum indicating builders used\n- UNKNOWN_BUILDER_TYPE: Could not determine builder type\n - JIB: JIB Builder\n - BAZEL: Bazel Builder\n - BUILDPACKS: Buildpacks Builder\n - CUSTOM: Custom Builder\n - KANIKO: Kaniko Builder\n - DOCKER: Docker Builder\n - KO: Ko Builder"
     },
     "enumsClusterType": {
       "type": "string",

docs/content/en/docs/references/api/grpc.md

@@ -817,6 +817,7 @@ Enum indicating builders used
 | CUSTOM | 4 | Custom Builder |
 | KANIKO | 5 | Kaniko Builder |
 | DOCKER | 6 | Docker Builder |
+| KO | 7 | Ko Builder |
 
 
 

pkg/skaffold/event/util.go

@@ -83,6 +83,8 @@ func getBuilders(b latestV1.BuildConfig) []*proto.BuildMetadata_ImageBuilder {
 			updateOrAddKey(m, proto.BuilderType_JIB)
 		case a.KanikoArtifact != nil:
 			updateOrAddKey(m, proto.BuilderType_KANIKO)
+		case a.KoArtifact != nil:
+			updateOrAddKey(m, proto.BuilderType_KO)
 		default:
 			updateOrAddKey(m, proto.BuilderType_UNKNOWN_BUILDER_TYPE)
 		}

pkg/skaffold/event/v2/metadata.go

@@ -102,6 +102,8 @@ func getArtifacts(b latestV1.BuildConfig) []*proto.BuildMetadata_Artifact {
 		case a.KanikoArtifact != nil:
 			artifact.Type = proto.BuilderType_KANIKO
 			artifact.Dockerfile = a.KanikoArtifact.DockerfilePath
+		case a.KoArtifact != nil:
+			artifact.Type = proto.BuilderType_KO
 		default:
 			artifact.Type = proto.BuilderType_UNKNOWN_BUILDER_TYPE
 		}

proto/enums/enums.proto

@@ -19,6 +19,8 @@ enum BuilderType {
     KANIKO = 5;
     // Docker Builder
     DOCKER = 6;
+    // Ko Builder
+    KO = 7;
 }
 
 // Enum indicating build type i.e. local, cluster vs GCB
@@ -673,7 +675,7 @@ enum SuggestionCode {
     INSPECT_USE_ADD_BUILD_ENV = 801;
     // Check profile flag value
     INSPECT_CHECK_INPUT_PROFILE = 802;
-    
+
     // Open an issue so this situation can be diagnosed
     OPEN_ISSUE = 900;