57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
// Copyright 2018 The gVisor Authors.
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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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// https://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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package utils
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import (
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"encoding/json"
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"io/ioutil"
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"os"
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"path/filepath"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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)
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// ReadSpec reads OCI spec from the bundle directory.
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func ReadSpec(bundle string) (*specs.Spec, error) {
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f, err := os.Open(filepath.Join(bundle, "config.json"))
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if err != nil {
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return nil, err
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}
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b, err := ioutil.ReadAll(f)
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if err != nil {
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return nil, err
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}
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var spec specs.Spec
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if err := json.Unmarshal(b, &spec); err != nil {
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return nil, err
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}
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return &spec, nil
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}
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// IsSandbox checks whether a container is a sandbox container.
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func IsSandbox(spec *specs.Spec) bool {
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t, ok := spec.Annotations[containerTypeAnnotation]
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return !ok || t == containerTypeSandbox
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}
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// UserLogPath gets user log path from OCI annotation.
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func UserLogPath(spec *specs.Spec) string {
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sandboxLogDir := spec.Annotations[sandboxLogDirAnnotation]
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if sandboxLogDir == "" {
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return ""
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}
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return filepath.Join(sandboxLogDir, "gvisor.log")
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}
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