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0380fbff37
Signed-off-by: John Howard <jhoward@microsoft.com> This PR has the API changes described in https://github.com/moby/moby/issues/34617. Specifically, it adds an HTTP header "X-Requested-Platform" which is a JSON-encoded OCI Image-spec `Platform` structure. In addition, it renames (almost all) uses of a string variable platform (and associated) methods/functions to os. This makes it much clearer to disambiguate with the swarm "platform" which is really os/arch. This is a stepping stone to getting the daemon towards fully multi-platform/arch-aware, and makes it clear when "operating system" is being referred to rather than "platform" which is misleadingly used - sometimes in the swarm meaning, but more often as just the operating system.
35 lines
837 B
Go
35 lines
837 B
Go
package layer
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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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"strings"
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)
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// SetOS writes the "os" file to the layer filestore
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func (fm *fileMetadataTransaction) SetOS(os OS) error {
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if os == "" {
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return nil
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}
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return fm.ws.WriteFile("os", []byte(os), 0644)
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}
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// GetOS reads the "os" file from the layer filestore
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func (fms *fileMetadataStore) GetOS(layer ChainID) (OS, error) {
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contentBytes, err := ioutil.ReadFile(fms.getLayerFilename(layer, "os"))
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if err != nil {
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// For backwards compatibility, the os file may not exist. Default to "windows" if missing.
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if os.IsNotExist(err) {
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return "windows", nil
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}
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return "", err
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}
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content := strings.TrimSpace(string(contentBytes))
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if content != "windows" && content != "linux" {
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return "", fmt.Errorf("invalid operating system value: %s", content)
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}
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return OS(content), nil
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}
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