Add container image support

cmd/containerimage/containerimage.go

@@ -0,0 +1,33 @@
+// Copyright 2023 Stacklok, Inc.
+//
+// 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 containerimage provides command-line utilities to work with container images.
+package containerimage
+
+import (
+	"github.com/spf13/cobra"
+)
+
+// CmdContainerImage represents the containerimage command
+func CmdContainerImage() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:          "containerimage",
+		Short:        "Replace container image references with checksums",
+		SilenceUsage: true,
+	}
+
+	cmd.AddCommand(CmdOne())
+
+	return cmd
+}

cmd/containerimage/one.go

@@ -0,0 +1,64 @@
+// Copyright 2023 Stacklok, Inc.
+//
+// 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 containerimage
+
+import (
+	"fmt"
+
+	"github.com/google/go-containerregistry/pkg/name"
+	"github.com/spf13/cobra"
+
+	"github.com/stacklok/frizbee/pkg/containers"
+)
+
+// CmdOne represents the one sub-command
+func CmdOne() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "one",
+		Short: "Replace the tag in container image reference",
+		Long: `This utility replaces a tag or branch reference in a container image reference
+with the digest hash of the referenced tag.
+
+Example:
+
+	$ frizbee containerimage one ghcr.io/stacklok/minder/helm/minder:0.20231123.829_ref.26ca90b
+`,
+		Args:         cobra.ExactArgs(1),
+		RunE:         replaceOne,
+		SilenceUsage: true,
+	}
+
+	return cmd
+}
+
+func replaceOne(cmd *cobra.Command, args []string) error {
+	ctx := cmd.Context()
+	ref := args[0]
+
+	r, err := name.ParseReference(ref)
+	if err != nil {
+		return fmt.Errorf("failed to parse reference: %w", err)
+	}
+
+	img := r.Context().String()
+
+	sum, err := containers.GetDigest(ctx, ref)
+	if err != nil {
+		return fmt.Errorf("failed to get checksum for action '%s': %w", ref, err)
+	}
+
+	fmt.Fprintf(cmd.OutOrStdout(), "%s@%s\n", img, sum)
+	return nil
+}

cmd/root.go

@@ -23,6 +23,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/stacklok/frizbee/cmd/containerimage"
 	"github.com/stacklok/frizbee/cmd/ghactions"
 	"github.com/stacklok/frizbee/pkg/config"
 )
@@ -38,6 +39,7 @@ func Execute() {
 	rootCmd.PersistentFlags().StringP("config", "c", ".frizbee.yml", "config file (default is .frizbee.yml)")
 
 	rootCmd.AddCommand(ghactions.CmdGHActions())
+	rootCmd.AddCommand(containerimage.CmdContainerImage())
 
 	if err := rootCmd.ExecuteContext(context.Background()); err != nil {
 		os.Exit(1)

go.mod

@@ -5,18 +5,32 @@ go 1.21
 require (
 	github.com/deckarep/golang-set/v2 v2.4.0
 	github.com/go-git/go-billy/v5 v5.5.0
+	github.com/google/go-containerregistry v0.16.1
 	github.com/google/go-github/v56 v56.0.0
 	github.com/spf13/cobra v1.8.0
 	github.com/stretchr/testify v1.8.4
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
+	github.com/containerd/stargz-snapshotter/estargz v0.14.3 // indirect
 	github.com/cyphar/filepath-securejoin v0.2.4 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/docker/cli v24.0.0+incompatible // indirect
+	github.com/docker/distribution v2.8.2+incompatible // indirect
+	github.com/docker/docker v24.0.7+incompatible // indirect
+	github.com/docker/docker-credential-helpers v0.7.0 // indirect
 	github.com/google/go-querystring v1.1.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/klauspost/compress v1.16.5 // indirect
+	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.0-rc3 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/sirupsen/logrus v1.9.1 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/vbatts/tar-split v0.11.3 // indirect
+	golang.org/x/sync v0.2.0 // indirect
 	golang.org/x/sys v0.12.0 // indirect
 )

go.sum

@@ -1,40 +1,82 @@
+github.com/BurntSushi/toml v1.2.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
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+github.com/containerd/stargz-snapshotter/estargz v0.14.3/go.mod h1:KY//uOCIkSuNAHhJogcZtrNHdKrA99/FCCRjE3HD36o=
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
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 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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+golang.org/x/sync v0.2.0 h1:PUR+T4wwASmuSTYdKjYHI5TD22Wy5ogLU5qZCOLxBrI=
+golang.org/x/sync v0.2.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220906165534-d0df966e6959/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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@@ -43,5 +85,9 @@ golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8T
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gotest.tools/v3 v3.0.3 h1:4AuOwCGf4lLR9u3YOe2awrHygurzhO/HeQ6laiA6Sx0=
+gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8=

pkg/constants/constants.go

@@ -0,0 +1,24 @@
+//
+// Copyright 2023 Stacklok, Inc.
+//
+// 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 constants provides constants for the frizbee utilities.
+package constants
+
+const (
+	// UserAgent is the user agent string used by frizbee.
+	//
+	// TODO (jaosorior): Add version information to this.
+	UserAgent = "frizbee"
+)

pkg/containers/containers.go

@@ -0,0 +1,50 @@
+//
+// Copyright 2023 Stacklok, Inc.
+//
+// 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 containers provides functions to replace tags for checksums
+package containers
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/google/go-containerregistry/pkg/name"
+	"github.com/google/go-containerregistry/pkg/v1/remote"
+
+	"github.com/stacklok/frizbee/pkg/constants"
+)
+
+// GetDigest returns the digest of a container image reference.
+func GetDigest(ctx context.Context, refstr string) (string, error) {
+	ref, err := name.ParseReference(refstr)
+	if err != nil {
+		return "", fmt.Errorf("failed to parse reference: %w", err)
+	}
+
+	return GetDigestFromRef(ctx, ref)
+}
+
+// GetDigestFromRef returns the digest of a container image reference
+// from a name.Reference.
+func GetDigestFromRef(ctx context.Context, ref name.Reference) (string, error) {
+	desc, err := remote.Get(ref,
+		remote.WithContext(ctx),
+		remote.WithUserAgent(constants.UserAgent))
+	if err != nil {
+		return "", fmt.Errorf("failed to get remote reference: %w", err)
+	}
+
+	return desc.Digest.String(), nil
+}