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//
// Copyright 2023 The Sigstore 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 initialize inits the TUF root for the tool.
// This is intended to replicate the behavior of `gitsign initialize`.
package initialize
import (
"github.com/sigstore/cosign/v2/cmd/cosign/cli/initialize"
"github.com/sigstore/sigstore/pkg/tuf"
"github.com/spf13/cobra"
)
type options struct {
Mirror string
Root string
}
// AddFlags implements Interface
func (o *options) AddFlags(cmd *cobra.Command) {
cmd.Flags().StringVar(&o.Mirror, "mirror", tuf.DefaultRemoteRoot,
"GCS bucket to a Sigstore TUF repository, or HTTP(S) base URL, or file:/// for local filestore remote (air-gap)")
cmd.Flags().StringVar(&o.Root, "root", "",
"path to trusted initial root. defaults to embedded root")
_ = cmd.Flags().SetAnnotation("root", cobra.BashCompSubdirsInDir, []string{})
}
func New() *cobra.Command {
o := &options{}
cmd := &cobra.Command{
Use: "initialize",
Short: "Initializes Sigstore root to retrieve trusted certificate and key targets for verification.",
Long: `Initializes Sigstore root to retrieve trusted certificate and key targets for verification.
The following options are used by default:
- The current trusted Sigstore TUF root is embedded inside gitsign at the time of release.
- Sigstore remote TUF repository is pulled from the CDN mirror at tuf-repo-cdn.sigstore.dev.
To provide an out-of-band trusted initial root.json, use the -root flag with a file or URL reference.
This will enable you to point gitsign to a separate TUF root.
Any updated TUF repository will be written to $HOME/.sigstore/root/.
Trusted keys and certificate used in gitsign verification (e.g. verifying Fulcio issued certificates
with Fulcio root CA) are pulled form the trusted metadata.`,
Example: `gitsign initialize -mirror <url> -out <file>
# initialize root with distributed root keys, default mirror, and default out path.
gitsign initialize
# initialize with an out-of-band root key file, using the default mirror.
gitsign initialize -root <url>
# initialize with an out-of-band root key file and custom repository mirror.
gitsign initialize -mirror <url> -root <url>`,
RunE: func(cmd *cobra.Command, _ []string) error {
return initialize.DoInitialize(cmd.Context(), o.Root, o.Mirror)
},
}
o.AddFlags(cmd)
return cmd
}
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