Add ldflags support

docs/resources/build.md

@@ -22,6 +22,7 @@ Sample resource in the Terraform provider scaffolding.
 ### Optional
 
 - `base_image` (String) base image to use
+- `ldflags` (List of String) Extra ldflags to pass to the go build
 - `platforms` (List of String) Which platform to use when pulling a multi-platform base. Format: all | <os>[/<arch>[/<variant>]][,platform]*
 - `repo` (String) Container repository to publish images to. If set, this overrides the provider's docker_repo, and the image name will be exactly the specified `repo`, without the importpath appended.
 - `sbom` (String) The SBOM media type to use (none will disable SBOM synthesis and upload, also supports: spdx, cyclonedx, go.version-m).

docs/resources/image.md

@@ -28,6 +28,7 @@ resource "ko_image" "example" {
 ### Optional
 
 - `base_image` (String) base image to use
+- `ldflags` (List of String) Extra ldflags to pass to the go build
 - `platforms` (List of String) Which platform to use when pulling a multi-platform base. Format: all | <os>[/<arch>[/<variant>]][,platform]*
 - `repo` (String) Container repository to publish images to. If set, this overrides the provider's docker_repo, and the image name will be exactly the specified `repo`, without the importpath appended.
 - `sbom` (String) The SBOM media type to use (none will disable SBOM synthesis and upload, also supports: spdx, cyclonedx, go.version-m).

docs/resources/resolve.md

@@ -41,6 +41,7 @@ output "manifests" {
 ### Optional
 
 - `base_image` (String)
+- `ldflags` (List of String) Extra ldflags to pass to the go build
 - `platforms` (List of String) Which platform to use when pulling a multi-platform base. Format: all | <os>[/<arch>[/<variant>]][,platform]*
 - `push` (Boolean) Push images to KO_DOCKER_REPO
 - `recursive` (Boolean) Process the directory used in -f, --filename recursively. Useful when you want to manage related manifests organized within the same directory.

internal/provider/const.go

@@ -33,6 +33,8 @@ const (
 	ManifestsKey = "manifests"
 	// RepoKey is used for common "repo" resource attribute
 	RepoKey = "repo"
+	// Ldflags is used for common "ldflags" resource attribute
+	LdflagsKey = "ldflags"
 )
 
 func StringSlice(in []interface{}) []string {

internal/provider/resource_ko_build.go

@@ -107,6 +107,13 @@ func resourceBuild() *schema.Resource {
 				Type:        schema.TypeString,
 				Computed:    true,
 			},
+			LdflagsKey: {
+				Description: "Extra ldflags to pass to the go build",
+				Optional:    true,
+				Type:        schema.TypeList,
+				Elem:        &schema.Schema{Type: schema.TypeString},
+				ForceNew:    true, // Any time this changes, don't try to update in-place, just create it.
+			},
 		},
 	}
 }
@@ -119,7 +126,8 @@ type buildOptions struct {
 	baseImage  string
 	sbom       string
 	auth       *authn.Basic
-	bare       bool // If true, use the "bare" namer that doesn't append the importpath.
+	bare       bool     // If true, use the "bare" namer that doesn't append the importpath.
+	ldflags    []string // Extra ldflags to pass to the go build.
 }
 
 var (
@@ -172,6 +180,12 @@ func (o *buildOptions) makeBuilder(ctx context.Context) (*build.Caching, error)
 			return nil, nil, fmt.Errorf("unexpected base image media type: %s", desc.MediaType)
 		}),
 	}
+	if len(o.ldflags) > 0 {
+		bo = append(bo, build.WithConfig(map[string]build.Config{
+			o.ip: {
+				Ldflags: o.ldflags,
+			}}))
+	}
 	switch o.sbom {
 	case "spdx":
 		bo = append(bo, build.WithSPDX(version))
@@ -277,11 +291,12 @@ func fromData(d *schema.ResourceData, po *Opts) buildOptions {
 		ip:         d.Get("importpath").(string),
 		workingDir: d.Get("working_dir").(string),
 		imageRepo:  repo,
-		platforms:  toStringSlice(d.Get("platforms").([]interface{})),
+		platforms:  defaultPlatform(toStringSlice(d.Get("platforms").([]interface{}))),
 		baseImage:  getString(d, BaseImageKey, po.bo.BaseImage),
 		sbom:       d.Get("sbom").(string),
 		auth:       po.auth,
 		bare:       bare,
+		ldflags:    toStringSlice(d.Get("ldflags").([]interface{})),
 	}
 }
 
@@ -292,11 +307,14 @@ func getString(d *schema.ResourceData, key string, defaultVal string) string {
 	return defaultVal
 }
 
-func toStringSlice(in []interface{}) []string {
+func defaultPlatform(in []string) []string {
 	if len(in) == 0 {
 		return []string{"linux/amd64"}
 	}
+	return in
+}
 
+func toStringSlice(in []interface{}) []string {
 	out := make([]string, len(in))
 	for i, ii := range in {
 		if s, ok := ii.(string); ok {

internal/provider/resource_ko_build_test.go

@@ -104,6 +104,7 @@ func TestAccResourceKoBuild(t *testing.T) {
 			resource "ko_build" "foo" {
 			  importpath = "github.com/ko-build/terraform-provider-ko/cmd/test"
 			  platforms = ["all"]
+			  ldflags = ["-s", "-w"]
 			}
 			`,
 			Check: resource.ComposeTestCheckFunc(
@@ -209,6 +210,7 @@ func TestAccResourceKoBuild_ProviderRepo(t *testing.T) {
 			Config: `
 		resource "ko_build" "foo" {
 			importpath = "github.com/ko-build/terraform-provider-ko/cmd/test"
+            ldflags = ["-s", "-w"]
 		}
 		`,
 			Check: resource.ComposeTestCheckFunc(

internal/provider/resource_ko_image.go

@@ -104,6 +104,13 @@ func resourceImage() *schema.Resource {
 				Type:        schema.TypeString,
 				Computed:    true,
 			},
+			LdflagsKey: {
+				Description: "Extra ldflags to pass to the go build",
+				Optional:    true,
+				Type:        schema.TypeList,
+				Elem:        &schema.Schema{Type: schema.TypeString},
+				ForceNew:    true, // Any time this changes, don't try to update in-place, just create it.
+			},
 		},
 	}
 }

internal/provider/resource_ko_resolve.go

@@ -95,6 +95,13 @@ func resolveConfig() *schema.Resource {
 				Elem:        &schema.Schema{Type: schema.TypeString},
 				Computed:    true,
 			},
+			LdflagsKey: {
+				Description: "Extra ldflags to pass to the go build",
+				Optional:    true,
+				Type:        schema.TypeList,
+				Elem:        &schema.Schema{Type: schema.TypeString},
+				ForceNew:    true, // Any time this changes, don't try to update in-place, just create it.
+			},
 		},
 	}
 }