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https://github.com/NVIDIA/nvidia-container-toolkit
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4177fddcc4
This change imports the modifying runtime abstraction from the experimental branch. This encapsulates the checks for whether modification is required, and forwards the loaded spec to the specified modifier. This allows for the same code to be reused when performing more complex modifications. Signed-off-by: Evan Lezar <elezar@nvidia.com>
58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
/*
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# Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
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#
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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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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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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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"fmt"
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"github.com/opencontainers/runtime-spec/specs-go"
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"github.com/sirupsen/logrus"
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)
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// SpecModifier defines an interace for modifying a (raw) OCI spec
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type SpecModifier interface {
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// Modify is a method that accepts a pointer to an OCI Srec and returns an
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// error. The intention is that the function would modify the spec in-place.
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Modify(*specs.Spec) error
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}
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//go:generate moq -stub -out spec_mock.go . Spec
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// Spec defines the operations to be performed on an OCI specification
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type Spec interface {
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Load() error
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Flush() error
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Modify(SpecModifier) error
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LookupEnv(string) (string, bool)
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}
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// NewSpec creates fileSpec based on the command line arguments passed to the
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// application using the specified logger.
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func NewSpec(logger *logrus.Logger, args []string) (Spec, error) {
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bundleDir, err := GetBundleDir(args)
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if err != nil {
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return nil, fmt.Errorf("error getting bundle directory: %v", err)
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}
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logger.Infof("Using bundle directory: %v", bundleDir)
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ociSpecPath := GetSpecFilePath(bundleDir)
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logger.Infof("Using OCI specification file path: %v", ociSpecPath)
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ociSpec := NewFileSpec(ociSpecPath)
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return ociSpec, nil
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}
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