Use the same user agent in both places

Signed-off-by: David Gageot <[email protected]>

Author: dgageot

cmd/docker-mcp/internal/docker/client.go

@@ -42,7 +42,7 @@ func NewClient(cli command.Cli) Client {
 		apiClient: sync.OnceValue(func() client.APIClient {
 			_ = cli.Apply(func(cli *command.DockerCli) error {
 				if mobyClient, ok := cli.Client().(*client.Client); ok {
-					_ = client.WithUserAgent("mcp/" + version.Version)(mobyClient)
+					_ = client.WithUserAgent(version.UserAgent())(mobyClient)
 				}
 				return nil
 			})

cmd/docker-mcp/internal/signatures/signatures.go

@@ -16,6 +16,8 @@ import (
 	"github.com/sigstore/sigstore/pkg/cryptoutils"
 	"github.com/sigstore/sigstore/pkg/signature"
 	"golang.org/x/sync/errgroup"
+
+	"github.com/docker/mcp-gateway/cmd/docker-mcp/version"
 )
 
 // https://raw.githubusercontent.com/docker/keyring/refs/heads/main/public/mcp/latest.pub
@@ -59,7 +61,7 @@ func Verify(ctx context.Context, images []string) error {
 					ociremote.WithTargetRepository(signatures),
 					ociremote.WithRemoteOptions(
 						remote.WithContext(ctxVerify),
-						remote.WithUserAgent("docker/mcp_gateway"),
+						remote.WithUserAgent(version.UserAgent()),
 						// remote.WithAuthFromKeychain(authn.DefaultKeychain),
 					),
 				},

cmd/docker-mcp/version/version.go

@@ -1,3 +1,7 @@
 package version
 
 var Version = "HEAD"
+
+func UserAgent() string {
+	return "docker/mcp_gateway/v/" + Version
+}