Add FORCE_BUILD_KREL GCB env var to build krel from sources

gcb/fast-forward/cloudbuild.yaml

@@ -59,6 +59,7 @@ steps:
   - "TOOL_ORG=${_TOOL_ORG}"
   - "TOOL_REPO=${_TOOL_REPO}"
   - "TOOL_REF=${_TOOL_REF}"
+  - "FORCE_BUILD_KREL=${_FORCE_BUILD_KREL}"
   args:
   - ./hack/get-krel
 

gcb/obs-release/cloudbuild.yaml

@@ -59,6 +59,7 @@ steps:
   - "TOOL_ORG=${_TOOL_ORG}"
   - "TOOL_REPO=${_TOOL_REPO}"
   - "TOOL_REF=${_TOOL_REF}"
+  - "FORCE_BUILD_KREL=${_FORCE_BUILD_KREL}"
   args:
   - ./hack/get-krel
 

gcb/obs-stage/cloudbuild.yaml

@@ -59,6 +59,7 @@ steps:
   - "TOOL_ORG=${_TOOL_ORG}"
   - "TOOL_REPO=${_TOOL_REPO}"
   - "TOOL_REF=${_TOOL_REF}"
+  - "FORCE_BUILD_KREL=${_FORCE_BUILD_KREL}"
   args:
   - ./hack/get-krel
 

gcb/release/cloudbuild.yaml

@@ -62,6 +62,7 @@ steps:
   - "TOOL_ORG=${_TOOL_ORG}"
   - "TOOL_REPO=${_TOOL_REPO}"
   - "TOOL_REF=${_TOOL_REF}"
+  - "FORCE_BUILD_KREL=${_FORCE_BUILD_KREL}"
   args:
   - ./hack/get-krel
 

gcb/stage/cloudbuild.yaml

@@ -63,6 +63,7 @@ steps:
   - "TOOL_ORG=${_TOOL_ORG}"
   - "TOOL_REPO=${_TOOL_REPO}"
   - "TOOL_REF=${_TOOL_REF}"
+  - "FORCE_BUILD_KREL=${_FORCE_BUILD_KREL}"
   args:
   - ./hack/get-krel
 

hack/get-krel

@@ -17,6 +17,7 @@
 set -o errexit
 set -o nounset
 set -o pipefail
+set -x
 
 curl_retry() {
     curl -sSfL --retry 5 --retry-delay 3 "$@"
@@ -29,11 +30,18 @@ DEFAULT_TOOL_REF=master
 TOOL_ORG=${TOOL_ORG:-${DEFAULT_TOOL_ORG}}
 TOOL_REPO=${TOOL_REPO:-${DEFAULT_TOOL_REPO}}
 TOOL_REF=${TOOL_REF:-${DEFAULT_TOOL_REF}}
+
+FORCE_BUILD_KREL=${FORCE_BUILD_KREL:-false}
+
 KREL_OUTPUT_PATH=${KREL_OUTPUT_PATH:-bin/krel}
 echo "Using output path: $KREL_OUTPUT_PATH"
 mkdir -p "$(dirname "$KREL_OUTPUT_PATH")"
 
-if [[ "$TOOL_ORG" == "$DEFAULT_TOOL_ORG" && "$TOOL_REPO" == "$DEFAULT_TOOL_REPO" && "$TOOL_REF" == "$DEFAULT_TOOL_REF" ]]; then
+if [[ "$FORCE_BUILD_KREL" == false &&
+    "$TOOL_ORG" == "$DEFAULT_TOOL_ORG" &&
+    "$TOOL_REPO" == "$DEFAULT_TOOL_REPO" &&
+    "$TOOL_REF" == "$DEFAULT_TOOL_REF" ]]; then
+
     LATEST_RELEASE=$(curl_retry https://api.github.com/repos/kubernetes/release/releases/latest | jq -r .tag_name)
     echo "Using krel release: $LATEST_RELEASE"
 

pkg/gcp/gcb/gcb.go

@@ -218,6 +218,7 @@ func (g *GCB) Submit() error {
 	toolOrg := release.GetToolOrg()
 	toolRepo := release.GetToolRepo()
 	toolRef := release.GetToolRef()
+	forceBuildKrel := release.GetForceBuildKrel()
 
 	if err := gcli.PreCheck(); err != nil {
 		return fmt.Errorf("pre-checking for GCP package usage: %w", err)
@@ -289,7 +290,7 @@ func (g *GCB) Submit() error {
 		gcsBucket = strings.ReplaceAll(gcsBucket, release.TestBucket, release.ProductionBucket)
 	}
 
-	gcbSubs, gcbSubsErr := g.SetGCBSubstitutions(toolOrg, toolRepo, toolRef, gcsBucket)
+	gcbSubs, gcbSubsErr := g.SetGCBSubstitutions(toolOrg, toolRepo, toolRef, gcsBucket, forceBuildKrel)
 	if gcbSubs == nil || gcbSubsErr != nil {
 		return gcbSubsErr
 	}
@@ -351,12 +352,13 @@ func (g *GCB) Submit() error {
 
 // SetGCBSubstitutions takes a set of `Options` and returns a map of GCB
 // substitutions.
-func (g *GCB) SetGCBSubstitutions(toolOrg, toolRepo, toolRef, gcsBucket string) (map[string]string, error) {
+func (g *GCB) SetGCBSubstitutions(toolOrg, toolRepo, toolRef, gcsBucket, forceBuildKrel string) (map[string]string, error) {
 	gcbSubs := map[string]string{}
 
 	gcbSubs["TOOL_ORG"] = toolOrg
 	gcbSubs["TOOL_REPO"] = toolRepo
 	gcbSubs["TOOL_REF"] = toolRef
+	gcbSubs["FORCE_BUILD_KREL"] = forceBuildKrel
 
 	gcbSubs["K8S_ORG"] = release.GetK8sOrg()
 	if g.options.CustomK8sOrg != "" {

pkg/gcp/gcb/gcb_test.go

@@ -157,15 +157,16 @@ func TestSubmitGcbFailure(t *testing.T) {
 
 func TestSetGCBSubstitutionsSuccess(t *testing.T) {
 	testcases := []struct {
-		name        string
-		gcbOpts     *gcb.Options
-		toolOrg     string
-		toolRepo    string
-		toolRef     string
-		expected    map[string]string
-		repoMock    gcb.Repository
-		versionMock gcb.Version
-		releaseMock gcb.Release
+		name           string
+		gcbOpts        *gcb.Options
+		toolOrg        string
+		toolRepo       string
+		toolRef        string
+		forceBuildKrel string
+		expected       map[string]string
+		repoMock       gcb.Repository
+		versionMock    gcb.Version
+		releaseMock    gcb.Release
 	}{
 		{
 			name: "main branch alpha - stage",
@@ -183,6 +184,7 @@ func TestSetGCBSubstitutionsSuccess(t *testing.T) {
 				"TOOL_ORG":               "",
 				"TOOL_REPO":              "",
 				"TOOL_REF":               "",
+				"FORCE_BUILD_KREL":       "",
 				"TYPE":                   release.ReleaseTypeAlpha,
 				"TYPE_TAG":               release.ReleaseTypeAlpha,
 				"MAJOR_VERSION_TAG":      "1",
@@ -211,6 +213,7 @@ func TestSetGCBSubstitutionsSuccess(t *testing.T) {
 				"TOOL_ORG":               "",
 				"TOOL_REPO":              "",
 				"TOOL_REF":               "",
+				"FORCE_BUILD_KREL":       "",
 				"TYPE":                   release.ReleaseTypeBeta,
 				"TYPE_TAG":               release.ReleaseTypeBeta,
 				"MAJOR_VERSION_TAG":      "1",
@@ -239,6 +242,7 @@ func TestSetGCBSubstitutionsSuccess(t *testing.T) {
 				"TOOL_ORG":               "",
 				"TOOL_REPO":              "",
 				"TOOL_REF":               "",
+				"FORCE_BUILD_KREL":       "",
 				"TYPE":                   release.ReleaseTypeRC,
 				"TYPE_TAG":               release.ReleaseTypeRC,
 				"MAJOR_VERSION_TAG":      "1",
@@ -266,6 +270,7 @@ func TestSetGCBSubstitutionsSuccess(t *testing.T) {
 				"TOOL_ORG":               "",
 				"TOOL_REPO":              "",
 				"TOOL_REF":               "",
+				"FORCE_BUILD_KREL":       "",
 				"TYPE":                   release.ReleaseTypeOfficial,
 				"TYPE_TAG":               release.ReleaseTypeOfficial,
 				"MAJOR_VERSION_TAG":      "1",
@@ -285,19 +290,21 @@ func TestSetGCBSubstitutionsSuccess(t *testing.T) {
 				ReleaseType: release.ReleaseTypeOfficial,
 				GcpUser:     "test-user",
 			},
-			repoMock:    mockRepo(),
-			versionMock: mockVersion("v1.16.0"),
-			releaseMock: mockRelease("v1.16.0"),
-			toolOrg:     "honk",
-			toolRepo:    "best-tools",
-			toolRef:     "tool-branch",
+			repoMock:       mockRepo(),
+			versionMock:    mockVersion("v1.16.0"),
+			releaseMock:    mockRelease("v1.16.0"),
+			toolOrg:        "honk",
+			toolRepo:       "best-tools",
+			toolRef:        "tool-branch",
+			forceBuildKrel: "true",
 			expected: map[string]string{
 				"RELEASE_BRANCH":         "release-1.16",
 				"TOOL_ORG":               "honk",
 				"TOOL_REPO":              "best-tools",
 				"TOOL_REF":               "tool-branch",
 				"TYPE":                   release.ReleaseTypeOfficial,
 				"TYPE_TAG":               release.ReleaseTypeOfficial,
+				"FORCE_BUILD_KREL":       "true",
 				"MAJOR_VERSION_TAG":      "1",
 				"MINOR_VERSION_TAG":      "16",
 				"PATCH_VERSION_TAG":      "0",
@@ -315,17 +322,19 @@ func TestSetGCBSubstitutionsSuccess(t *testing.T) {
 				ReleaseType: release.ReleaseTypeBeta,
 				GcpUser:     "test-user",
 			},
-			repoMock:    mockRepo(),
-			versionMock: mockVersion("v1.19.0-alpha.2.763+2da917d3701904"),
-			releaseMock: mockRelease("1.19.0-beta.0"),
-			toolOrg:     "honk",
-			toolRepo:    "best-tools",
-			toolRef:     "tool-branch",
+			repoMock:       mockRepo(),
+			versionMock:    mockVersion("v1.19.0-alpha.2.763+2da917d3701904"),
+			releaseMock:    mockRelease("1.19.0-beta.0"),
+			toolOrg:        "honk",
+			toolRepo:       "best-tools",
+			toolRef:        "tool-branch",
+			forceBuildKrel: "true",
 			expected: map[string]string{
 				"RELEASE_BRANCH":         "release-1.19",
 				"TOOL_ORG":               "honk",
 				"TOOL_REPO":              "best-tools",
 				"TOOL_REF":               "tool-branch",
+				"FORCE_BUILD_KREL":       "true",
 				"TYPE":                   release.ReleaseTypeBeta,
 				"TYPE_TAG":               release.ReleaseTypeBeta,
 				"MAJOR_VERSION_TAG":      "1",
@@ -345,14 +354,16 @@ func TestSetGCBSubstitutionsSuccess(t *testing.T) {
 				ReleaseType: release.ReleaseTypeRC,
 				GcpUser:     "test-user",
 			},
-			repoMock:    mockRepo(),
-			versionMock: mockVersion("v1.18.6-rc.0.15+e38139724f8f00"),
-			releaseMock: mockRelease("1.18.6-rc.1"),
+			repoMock:       mockRepo(),
+			versionMock:    mockVersion("v1.18.6-rc.0.15+e38139724f8f00"),
+			releaseMock:    mockRelease("1.18.6-rc.1"),
+			forceBuildKrel: "false",
 			expected: map[string]string{
 				"RELEASE_BRANCH":         "release-1.18",
 				"TOOL_ORG":               "",
 				"TOOL_REPO":              "",
 				"TOOL_REF":               "",
+				"FORCE_BUILD_KREL":       "false",
 				"TYPE":                   release.ReleaseTypeRC,
 				"TYPE_TAG":               release.ReleaseTypeRC,
 				"MAJOR_VERSION_TAG":      "1",
@@ -380,6 +391,7 @@ func TestSetGCBSubstitutionsSuccess(t *testing.T) {
 				"TOOL_ORG":               "",
 				"TOOL_REPO":              "",
 				"TOOL_REF":               "",
+				"FORCE_BUILD_KREL":       "",
 				"TYPE":                   release.ReleaseTypeRC,
 				"TYPE_TAG":               release.ReleaseTypeRC,
 				"MAJOR_VERSION_TAG":      "1",
@@ -402,7 +414,7 @@ func TestSetGCBSubstitutionsSuccess(t *testing.T) {
 		sut.SetReleaseClient(tc.releaseMock)
 
 		subs, err := sut.SetGCBSubstitutions(
-			tc.toolOrg, tc.toolRepo, tc.toolRef, "gs://test-bucket",
+			tc.toolOrg, tc.toolRepo, tc.toolRef, "gs://test-bucket", tc.forceBuildKrel,
 		)
 		require.Nil(t, err)
 
@@ -449,7 +461,7 @@ func TestSetGCBSubstitutionsFailure(t *testing.T) {
 		sut := gcb.New(tc.gcbOpts)
 		sut.SetRepoClient(tc.repoMock)
 		sut.SetVersionClient(tc.versionMock)
-		_, err := sut.SetGCBSubstitutions("", "", "", "")
+		_, err := sut.SetGCBSubstitutions("", "", "", "", "")
 		require.Error(t, err)
 	}
 }

pkg/release/release.go

@@ -159,6 +159,13 @@ func GetToolRef() string {
 	return env.Default("TOOL_REF", DefaultToolRef)
 }
 
+// GetForceBuildKrel checks if the 'FORCE_BUILD_KREL' environment variable is
+// set.  If 'FORCE_BUILD_KREL' is non-empty, it returns the value. Otherwise,
+// it returns "false".
+func GetForceBuildKrel() string {
+	return env.Default("FORCE_BUILD_KREL", "false")
+}
+
 // GetK8sOrg checks if the 'K8S_ORG' environment variable is set.
 // If 'K8S_ORG' is non-empty, it returns the value. Otherwise, it returns DefaultK8sOrg.
 func GetK8sOrg() string {