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98fc09128b
As people are using the UUID in `docker info` that was based on the v1 manifest signing key, replace with a UUID instead. Remove deprecated `--disable-legacy-registry` option that was scheduled to be removed in 18.03. Signed-off-by: Justin Cormack <justin.cormack@docker.com>
28 lines
669 B
Go
28 lines
669 B
Go
package daemon // import "github.com/docker/docker/daemon"
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"github.com/docker/docker/pkg/ioutils"
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"github.com/pborman/uuid"
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)
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func loadOrCreateUUID(path string) (string, error) {
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err := os.MkdirAll(filepath.Dir(path), 0755)
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if err != nil {
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return "", err
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}
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id, err := ioutil.ReadFile(path)
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if os.IsNotExist(err) {
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id = []byte(uuid.New())
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if err := ioutils.AtomicWriteFile(path, id, os.FileMode(0600)); err != nil {
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return "", fmt.Errorf("Error saving uuid file: %s", err)
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}
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} else if err != nil {
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return "", fmt.Errorf("Error loading uuid file %s: %s", path, err)
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}
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return string(id), nil
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}
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