62 lines
1.9 KiB
Go
62 lines
1.9 KiB
Go
/*
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Copyright 2022 The Flux authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package oci
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import (
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"context"
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"fmt"
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"strings"
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"github.com/fluxcd/pkg/oci/auth/login"
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"github.com/google/go-containerregistry/pkg/authn"
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"github.com/google/go-containerregistry/pkg/name"
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sourcev1 "github.com/fluxcd/source-controller/api/v1beta2"
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)
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// Anonymous is an authn.AuthConfig that always returns an anonymous
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// authenticator. It is useful for registries that do not require authentication
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// or when the credentials are not known.
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// It implements authn.Keychain `Resolve` method and can be used as a keychain.
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type Anonymous authn.AuthConfig
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// Resolve implements authn.Keychain.
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func (a Anonymous) Resolve(_ authn.Resource) (authn.Authenticator, error) {
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return authn.Anonymous, nil
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}
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// OIDCAuth generates the OIDC credential authenticator based on the specified cloud provider.
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func OIDCAuth(ctx context.Context, url, provider string) (authn.Authenticator, error) {
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u := strings.TrimPrefix(url, sourcev1.OCIRepositoryPrefix)
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ref, err := name.ParseReference(u)
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if err != nil {
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return nil, fmt.Errorf("failed to parse URL '%s': %w", u, err)
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}
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opts := login.ProviderOptions{}
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switch provider {
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case sourcev1.AmazonOCIProvider:
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opts.AwsAutoLogin = true
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case sourcev1.AzureOCIProvider:
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opts.AzureAutoLogin = true
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case sourcev1.GoogleOCIProvider:
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opts.GcpAutoLogin = true
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}
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return login.NewManager().Login(ctx, u, ref, opts)
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}
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