provide support for multiple buildTypes. The initial types are to

support more general slsa verifiers and provide more verbose output for
tekton verifiers. This implementation will default to the slsa
buildType.

pkg/chains/formats/slsa/internal/slsaconfig/slsaconfig.go

@@ -20,4 +20,6 @@ type SlsaConfig struct {
 	BuilderID string
 	// DeepInspectionEnabled configures whether to dive into child taskruns in a pipelinerun
 	DeepInspectionEnabled bool
+	// The buildType for the build definition
+	BuildType string
 }

pkg/chains/formats/slsa/v2alpha2/internal/build_types/build_types.go

@@ -0,0 +1,22 @@
+/*
+Copyright 2023 The Tekton Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package buildtypes
+
+const (
+	SlsaBuildType   = "https://tekton.dev/chains/v2/slsa"
+	TektonBuildType = "https://tekton.dev/chains/v2/slsa-tekton"
+)

pkg/chains/formats/slsa/v2alpha2/internal/external_parameters/external_parameters.go

@@ -0,0 +1,60 @@
+/*
+Copyright 2023 The Tekton Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package externalparameters
+
+import (
+	"fmt"
+
+	"github.com/tektoncd/chains/pkg/chains/objects"
+	"github.com/tektoncd/pipeline/pkg/apis/pipeline/v1beta1"
+)
+
+func buildConfigSource(provenance *v1beta1.Provenance) map[string]string {
+	ref := ""
+	for alg, hex := range provenance.RefSource.Digest {
+		ref = fmt.Sprintf("%s:%s", alg, hex)
+		break
+	}
+	buildConfigSource := map[string]string{
+		"ref":        ref,
+		"repository": provenance.RefSource.URI,
+		"path":       provenance.RefSource.EntryPoint,
+	}
+	return buildConfigSource
+}
+
+// PipelineRun adds the pipeline run spec and provenance if available
+func PipelineRun(pro *objects.PipelineRunObject) map[string]any {
+	externalParams := make(map[string]any)
+
+	if provenance := pro.GetRemoteProvenance(); provenance != nil {
+		externalParams["buildConfigSource"] = buildConfigSource(provenance)
+	}
+	externalParams["runSpec"] = pro.Spec
+	return externalParams
+}
+
+// TaskRun adds the task run spec and provenance if available
+func TaskRun(tro *objects.TaskRunObject) map[string]any {
+	externalParams := make(map[string]any)
+
+	if provenance := tro.GetRemoteProvenance(); provenance != nil {
+		externalParams["buildConfigSource"] = buildConfigSource(provenance)
+	}
+	externalParams["runSpec"] = tro.Spec
+	return externalParams
+}

pkg/chains/formats/slsa/v2alpha2/internal/external_parameters/external_parameters_test.go

@@ -0,0 +1,113 @@
+/*
+Copyright 2023 The Tekton Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package externalparameters
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"github.com/tektoncd/chains/pkg/chains/objects"
+	"github.com/tektoncd/chains/pkg/internal/objectloader"
+	"github.com/tektoncd/pipeline/pkg/apis/pipeline/v1beta1"
+)
+
+func TestBuildConfigSource(t *testing.T) {
+	provenance := &v1beta1.Provenance{
+		RefSource: &v1beta1.RefSource{
+			Digest:     map[string]string{"alg1": "hex1", "alg2": "hex2"},
+			URI:        "https://tekton.com",
+			EntryPoint: "/path/to/entry",
+		},
+	}
+
+	want := map[string]string{
+		"ref":        "alg1:hex1",
+		"repository": "https://tekton.com",
+		"path":       "/path/to/entry",
+	}
+
+	got := buildConfigSource(provenance)
+
+	if diff := cmp.Diff(want, got); diff != "" {
+		t.Errorf("buildConfigSource(): -want +got: %s", diff)
+	}
+}
+func createPro(path string) *objects.PipelineRunObject {
+	pr, err := objectloader.PipelineRunFromFile(path)
+	if err != nil {
+		panic(err)
+	}
+	tr1, err := objectloader.TaskRunFromFile("../../../testdata/v2alpha2/taskrun1.json")
+	if err != nil {
+		panic(err)
+	}
+	tr2, err := objectloader.TaskRunFromFile("../../../testdata/v2alpha2/taskrun2.json")
+	if err != nil {
+		panic(err)
+	}
+	p := objects.NewPipelineRunObject(pr)
+	p.AppendTaskRun(tr1)
+	p.AppendTaskRun(tr2)
+	return p
+}
+
+func TestPipelineRun(t *testing.T) {
+	pro := createPro("../../../testdata/v2alpha2/pipelinerun1.json")
+
+	got := PipelineRun(pro)
+
+	want := map[string]any{
+		"runSpec": v1beta1.PipelineRunSpec{
+			PipelineRef: &v1beta1.PipelineRef{Name: "test-pipeline"},
+			Params: v1beta1.Params{
+				{
+					Name:  "IMAGE",
+					Value: v1beta1.ParamValue{Type: "string", StringVal: "test.io/test/image"},
+				},
+			},
+			ServiceAccountName: "pipeline",
+		},
+	}
+
+	if diff := cmp.Diff(want, got); diff != "" {
+		t.Errorf("PipelineRun(): -want +got: %s", diff)
+	}
+}
+
+func TestTaskRun(t *testing.T) {
+	tr, err := objectloader.TaskRunFromFile("../../../testdata/v2alpha2/taskrun1.json")
+	if err != nil {
+		t.Fatal(err)
+	}
+	got := TaskRun(objects.NewTaskRunObject(tr))
+
+	want := map[string]any{
+		"runSpec": v1beta1.TaskRunSpec{
+			Params: v1beta1.Params{
+				{Name: "IMAGE", Value: v1beta1.ParamValue{Type: "string", StringVal: "test.io/test/image"}},
+				{Name: "CHAINS-GIT_COMMIT", Value: v1beta1.ParamValue{Type: "string", StringVal: "taskrun"}},
+				{Name: "CHAINS-GIT_URL", Value: v1beta1.ParamValue{Type: "string", StringVal: "https://git.test.com"}},
+			},
+			ServiceAccountName: "default",
+			TaskRef:            &v1beta1.TaskRef{Name: "build", Kind: "Task"},
+		},
+	}
+
+	if diff := cmp.Diff(want, got); diff != "" {
+		t.Errorf("TaskRun(): -want +got: %s", diff)
+	}
+}

pkg/chains/formats/slsa/v2alpha2/internal/internal_parameters/internal_parameters.go

@@ -0,0 +1,42 @@
+/*
+Copyright 2023 The Tekton Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package internalparameters
+
+import (
+	"github.com/tektoncd/chains/pkg/chains/objects"
+	"github.com/tektoncd/pipeline/pkg/apis/pipeline/v1beta1"
+)
+
+// SLSAInternalParameters provides the chains config as internalparameters
+func SLSAInternalParameters(tko objects.TektonObject) map[string]any {
+	internalParams := make(map[string]any)
+	if provenance := tko.GetProvenance(); provenance != (*v1beta1.Provenance)(nil) && provenance.FeatureFlags != nil {
+		internalParams["tekton-pipelines-feature-flags"] = *provenance.FeatureFlags
+	}
+	return internalParams
+}
+
+// TektonInternalParameters provides the chains config as well as annotations and labels
+func TektonInternalParameters(tko objects.TektonObject) map[string]any {
+	internalParams := make(map[string]any)
+	if provenance := tko.GetProvenance(); provenance != (*v1beta1.Provenance)(nil) && provenance.FeatureFlags != nil {
+		internalParams["tekton-pipelines-feature-flags"] = *provenance.FeatureFlags
+	}
+	internalParams["labels"] = tko.GetLabels()
+	internalParams["annotations"] = tko.GetAnnotations()
+	return internalParams
+}

pkg/chains/formats/slsa/v2alpha2/internal/internal_parameters/internal_parameters_test.go

@@ -0,0 +1,60 @@
+/*
+Copyright 2023 The Tekton Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package internalparameters
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"github.com/tektoncd/chains/pkg/chains/objects"
+	"github.com/tektoncd/chains/pkg/internal/objectloader"
+	"github.com/tektoncd/pipeline/pkg/apis/config"
+)
+
+func TestTektonInternalParameters(t *testing.T) {
+	tr, err := objectloader.TaskRunFromFile("../../../testdata/v2alpha2/taskrun1.json")
+	if err != nil {
+		t.Fatal(err)
+	}
+	tro := objects.NewTaskRunObject(tr)
+	got := TektonInternalParameters(tro)
+	want := map[string]any{
+		"labels":                         tro.GetLabels(),
+		"annotations":                    tro.GetAnnotations(),
+		"tekton-pipelines-feature-flags": config.FeatureFlags{EnableAPIFields: "beta", ResultExtractionMethod: "termination-message"},
+	}
+
+	if diff := cmp.Diff(want, got); diff != "" {
+		t.Errorf("TaskRun(): -want +got: %s", diff)
+	}
+}
+
+func TestSLSAInternalParameters(t *testing.T) {
+	tr, err := objectloader.TaskRunFromFile("../../../testdata/v2alpha2/taskrun1.json")
+	if err != nil {
+		t.Fatal(err)
+	}
+	tro := objects.NewTaskRunObject(tr)
+	got := SLSAInternalParameters(tro)
+	want := map[string]any{
+		"tekton-pipelines-feature-flags": config.FeatureFlags{EnableAPIFields: "beta", ResultExtractionMethod: "termination-message"},
+	}
+
+	if diff := cmp.Diff(want, got); diff != "" {
+		t.Errorf("TaskRun(): -want +got: %s", diff)
+	}
+}