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keychain.go
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// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package registry
import (
"context"
"strings"
"github.com/google/go-containerregistry/pkg/authn"
"namespacelabs.dev/foundation/internal/artifacts/oci"
"namespacelabs.dev/foundation/internal/sdk/gcloud"
)
var DefaultKeychain oci.Keychain = keychain{}
type keychain struct {
ts *gcloud.TokenSource
}
func (d keychain) Resolve(ctx context.Context, r authn.Resource) (authn.Authenticator, error) {
if !strings.HasSuffix(r.RegistryStr(), ".pkg.dev") {
return authn.Anonymous, nil
}
ts := d.ts
if ts == nil {
ts = gcloud.NewTokenSource(ctx)
}
token, err := ts.Token()
if err != nil {
return nil, err
}
cfg := authn.AuthConfig{
Username: "oauth2accesstoken",
Password: token.AccessToken,
}
return authn.FromConfig(cfg), nil
}