Call host secrets plugin directly when resolving secrets

We should not require all secret plugins to call the host secrets plugin
for non secret values. Instead we should call the host secrets plugin
directly.

Signed-off-by: Kim Christensen <kimworking@gmail.com>

pkg/cnab/provider/credentials_test.go

@@ -8,6 +8,7 @@ import (
 	"get.porter.sh/porter/pkg/secrets"
 	"get.porter.sh/porter/pkg/storage"
 	"github.com/cnabio/cnab-go/bundle"
+	"github.com/cnabio/cnab-go/secrets/host"
 	"github.com/cnabio/cnab-go/valuesource"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -145,3 +146,42 @@ func TestRuntime_loadCredentials_WithApplyTo(t *testing.T) {
 	})
 
 }
+
+func TestRuntime_nonSecretValue_loadCredentials(t *testing.T) {
+	t.Parallel()
+
+	r := NewTestRuntime(t)
+	defer r.Close()
+
+	b := cnab.NewBundle(bundle.Bundle{
+		Credentials: map[string]bundle.Credential{
+			"password": {
+				Location: bundle.Location{
+					EnvironmentVariable: "PASSWORD",
+				},
+			},
+		},
+	})
+
+	run := storage.Run{
+		Action: cnab.ActionInstall,
+		Credentials: storage.NewInternalCredentialSet(secrets.SourceMap{
+			Name: "password",
+			Source: secrets.Source{
+				Strategy: host.SourceValue,
+				Hint:     "mypassword",
+			},
+		}),
+	}
+	err := r.loadCredentials(context.Background(), b, &run)
+	require.NoError(t, err, "loadCredentials failed")
+	require.Equal(t, "sha256:9b6063069a6d911421cf53b30b91836b70957c30eddc70a760eff4765b8cede5",
+		run.CredentialsDigest, "expected loadCredentials to set the digest of resolved credentials")
+	require.NotEmpty(t, run.Credentials.Credentials[0].ResolvedValue, "expected loadCredentials to set the resolved value of the credentials on the Run")
+
+	gotValues := run.Credentials.ToCNAB()
+	wantValues := valuesource.Set{
+		"password": "mypassword",
+	}
+	assert.Equal(t, wantValues, gotValues, "resolved unexpected credential values")
+}

pkg/secrets/plugins/filesystem/store.go

@@ -90,8 +90,7 @@ func (s *Store) Resolve(ctx context.Context, keyName string, keyValue string) (s
 
 	// check if the keyName is secret
 	if keyName != secrets.SourceSecret {
-		value, err := s.hostStore.Resolve(ctx, keyName, keyValue)
-		return value, log.Error(err)
+		return "", log.Errorf("unsupported keyName %s", keyName)
 	}
 
 	path := filepath.Join(s.secretDir, keyValue)

pkg/secrets/plugins/in-memory/store.go

@@ -3,9 +3,9 @@ package inmemory
 import (
 	"context"
 	"errors"
+	"fmt"
 
 	"get.porter.sh/porter/pkg/secrets/plugins"
-	"github.com/cnabio/cnab-go/secrets/host"
 )
 
 var _ plugins.SecretsProtocol = &Store{}
@@ -38,8 +38,7 @@ func (s *Store) Resolve(ctx context.Context, keyName string, keyValue string) (s
 		return value, nil
 	}
 
-	hostStore := host.SecretStore{}
-	return hostStore.Resolve(keyName, keyValue)
+	return "", fmt.Errorf("unsupported keyName %s", keyName)
 }
 
 func (s *Store) Create(ctx context.Context, keyName string, keyValue string, value string) error {

pkg/storage/credential_store.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 
 	"get.porter.sh/porter/pkg/secrets"
+	hostSecrets "get.porter.sh/porter/pkg/secrets/plugins/host"
 	"get.porter.sh/porter/pkg/tracing"
 	"github.com/cnabio/cnab-go/secrets/host"
 	"github.com/hashicorp/go-multierror"
@@ -21,14 +22,16 @@ const (
 // providing typed access and additional business logic around
 // credential sets, usually referred to as "credentials" as a shorthand.
 type CredentialStore struct {
-	Documents Store
-	Secrets   secrets.Store
+	Documents   Store
+	Secrets     secrets.Store
+	HostSecrets hostSecrets.Store
 }
 
 func NewCredentialStore(storage Store, secrets secrets.Store) *CredentialStore {
 	return &CredentialStore{
-		Documents: storage,
-		Secrets:   secrets,
+		Documents:   storage,
+		Secrets:     secrets,
+		HostSecrets: hostSecrets.NewStore(),
 	}
 }
 
@@ -62,7 +65,13 @@ func (s CredentialStore) ResolveAll(ctx context.Context, creds CredentialSet) (s
 	var resolveErrors error
 
 	for _, cred := range creds.Credentials {
-		value, err := s.Secrets.Resolve(ctx, cred.Source.Strategy, cred.Source.Hint)
+		var value string
+		var err error
+		if isHandledByHostPlugin(cred.Source.Strategy) {
+			value, err = s.HostSecrets.Resolve(ctx, cred.Source.Strategy, cred.Source.Hint)
+		} else {
+			value, err = s.Secrets.Resolve(ctx, cred.Source.Strategy, cred.Source.Hint)
+		}
 		if err != nil {
 			resolveErrors = multierror.Append(resolveErrors, fmt.Errorf("unable to resolve credential %s.%s from %s %s: %w", creds.Name, cred.Name, cred.Source.Strategy, cred.Source.Hint, err))
 		}

pkg/storage/helpers.go

@@ -3,6 +3,7 @@ package storage
 import (
 	"get.porter.sh/porter/pkg/config"
 	"get.porter.sh/porter/pkg/storage/plugins/testplugin"
+	"github.com/cnabio/cnab-go/secrets/host"
 )
 
 var _ Store = TestStore{}
@@ -23,3 +24,7 @@ func NewTestStore(tc *config.TestConfig) TestStore {
 func (s TestStore) Close() error {
 	return s.testPlugin.Close()
 }
+
+func isHandledByHostPlugin(strategy string) bool {
+	return strategy == host.SourceCommand || strategy == host.SourceEnv || strategy == host.SourcePath || strategy == host.SourceValue
+}

pkg/storage/parameter_store.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 
 	"get.porter.sh/porter/pkg/secrets"
+	hostSecrets "get.porter.sh/porter/pkg/secrets/plugins/host"
 	"get.porter.sh/porter/pkg/tracing"
 	"github.com/cnabio/cnab-go/secrets/host"
 	"github.com/hashicorp/go-multierror"
@@ -20,14 +21,16 @@ const (
 // ParameterStore provides access to parameter sets by instantiating plugins that
 // implement CRUD storage.
 type ParameterStore struct {
-	Documents Store
-	Secrets   secrets.Store
+	Documents   Store
+	Secrets     secrets.Store
+	HostSecrets hostSecrets.Store
 }
 
 func NewParameterStore(storage Store, secrets secrets.Store) *ParameterStore {
 	return &ParameterStore{
-		Documents: storage,
-		Secrets:   secrets,
+		Documents:   storage,
+		Secrets:     secrets,
+		HostSecrets: hostSecrets.NewStore(),
 	}
 }
 
@@ -56,7 +59,13 @@ func (s ParameterStore) ResolveAll(ctx context.Context, params ParameterSet) (se
 	var resolveErrors error
 
 	for _, param := range params.Parameters {
-		value, err := s.Secrets.Resolve(ctx, param.Source.Strategy, param.Source.Hint)
+		var value string
+		var err error
+		if isHandledByHostPlugin(param.Source.Strategy) {
+			value, err = s.HostSecrets.Resolve(ctx, param.Source.Strategy, param.Source.Hint)
+		} else {
+			value, err = s.Secrets.Resolve(ctx, param.Source.Strategy, param.Source.Hint)
+		}
 		if err != nil {
 			resolveErrors = multierror.Append(resolveErrors, fmt.Errorf("unable to resolve parameter %s.%s from %s %s: %w", params.Name, param.Name, param.Source.Strategy, param.Source.Hint, err))
 		}