mirror of
https://github.com/clearlinux/rkt.git
synced 2026-09-06 22:01:54 +00:00
Vito Caputo
797baa098c
Currently the annotation "coreos.com/rocket/stage1/init" represents the stage1 entrypoint used by `rkt run`. Renaming to "coreos.com/rocket/stage1/run" is more consistent and self-documenting, aligning with the `rkt enter` entrypoint annotation "coreos.com/rocket/stage1/enter".
51 lines
1.5 KiB
Go
51 lines
1.5 KiB
Go
// Copyright 2015 CoreOS, Inc.
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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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//+build linux
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package stage0
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"github.com/coreos/rocket/Godeps/_workspace/src/github.com/appc/spec/schema"
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"github.com/coreos/rocket/common"
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)
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const (
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enterEntrypoint = "coreos.com/rocket/stage1/enter"
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runEntrypoint = "coreos.com/rocket/stage1/run"
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)
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// getEntrypoint retrieves the named entrypoint from the stage1 manifest for a given container
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func getStage1Entrypoint(cdir string, entrypoint string) (string, error) {
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b, err := ioutil.ReadFile(common.Stage1ManifestPath(cdir))
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if err != nil {
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return "", fmt.Errorf("error reading container manifest: %v", err)
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}
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s1m := schema.ImageManifest{}
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if err := json.Unmarshal(b, &s1m); err != nil {
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return "", fmt.Errorf("error unmarshaling stage1 manifest: %v", err)
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}
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if ep, ok := s1m.Annotations.Get(entrypoint); ok {
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return ep, nil
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}
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return "", fmt.Errorf("entrypoint %q not found", entrypoint)
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}
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