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[eclipse-kanto#67] Implement signed images verification
Signed-off-by: Dimitar Dimitrov <dimitar.dimitrov3@bosch.com>
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// Copyright (c) 2023 Contributors to the Eclipse Foundation | ||
// | ||
// See the NOTICE file(s) distributed with this work for additional | ||
// information regarding copyright ownership. | ||
// | ||
// This program and the accompanying materials are made available under the | ||
// terms of the Eclipse Public License 2.0 which is available at | ||
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0 | ||
// which is available at https://www.apache.org/licenses/LICENSE-2.0. | ||
// | ||
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 | ||
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package ctr | ||
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import ( | ||
"context" | ||
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"github.com/eclipse-kanto/container-management/containerm/containers/types" | ||
"github.com/eclipse-kanto/container-management/containerm/log" | ||
) | ||
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const ( | ||
// VerifierNone is a VerifierType denoting that no verification will be performed | ||
VerifierNone = VerifierType("none") | ||
// VerifierNotation is a VerifierType denoting that verification will be performed with notation | ||
VerifierNotation = VerifierType("notation") | ||
notationKeyConfigDir = "configDir" | ||
notationKeyLibexecDir = "libexecDir" | ||
) | ||
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// VerifierType image verifier type - possible values are none and notation, when set to none image signatures wil not be verified. | ||
type VerifierType string | ||
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type containerVerifier interface { | ||
Verify(context.Context, types.Image) error | ||
} | ||
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func newContainerVerifier(verifierType VerifierType, verifierConfig map[string]string, registryConfig map[string]*RegistryConfig) (containerVerifier, error) { | ||
switch verifierType { | ||
case VerifierNone: | ||
return &skipVerifier{}, nil | ||
case VerifierNotation: | ||
return newNotationVerifier(verifierConfig, registryConfig) | ||
default: | ||
return nil, log.NewErrorf("unknown verifier type - %s", verifierType) | ||
} | ||
} | ||
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type skipVerifier struct{} | ||
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func (*skipVerifier) Verify(_ context.Context, _ types.Image) error { | ||
return nil | ||
} |
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