nvidia-container-toolkit/internal/oci/spec.go
Evan Lezar a02bc27c3e Define a basic logger interface
Signed-off-by: Evan Lezar <elezar@nvidia.com>
2023-06-12 10:46:10 +02:00

59 lines
1.8 KiB
Go

/*
# Copyright (c) 2021, NVIDIA CORPORATION. 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.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
*/
package oci
import (
"fmt"
"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
"github.com/opencontainers/runtime-spec/specs-go"
)
// SpecModifier defines an interace for modifying a (raw) OCI spec
type SpecModifier interface {
// Modify is a method that accepts a pointer to an OCI Srec and returns an
// error. The intention is that the function would modify the spec in-place.
Modify(*specs.Spec) error
}
// Spec defines the operations to be performed on an OCI specification
//
//go:generate moq -stub -out spec_mock.go . Spec
type Spec interface {
Load() (*specs.Spec, error)
Flush() error
Modify(SpecModifier) error
LookupEnv(string) (string, bool)
}
// NewSpec creates fileSpec based on the command line arguments passed to the
// application using the specified logger.
func NewSpec(logger logger.Interface, args []string) (Spec, error) {
bundleDir, err := GetBundleDir(args)
if err != nil {
return nil, fmt.Errorf("error getting bundle directory: %v", err)
}
logger.Debugf("Using bundle directory: %v", bundleDir)
ociSpecPath := GetSpecFilePath(bundleDir)
logger.Infof("Using OCI specification file path: %v", ociSpecPath)
ociSpec := NewFileSpec(ociSpecPath)
return ociSpec, nil
}