mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
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.
81 lines
2.2 KiB
Go
81 lines
2.2 KiB
Go
// +build !windows
|
|
|
|
package daemon
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
containertypes "github.com/docker/docker/api/types/container"
|
|
mounttypes "github.com/docker/docker/api/types/mount"
|
|
"github.com/docker/docker/container"
|
|
"github.com/docker/docker/pkg/stringid"
|
|
"github.com/opencontainers/selinux/go-selinux/label"
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
// createContainerOSSpecificSettings performs host-OS specific container create functionality
|
|
func (daemon *Daemon) createContainerOSSpecificSettings(container *container.Container, config *containertypes.Config, hostConfig *containertypes.HostConfig) error {
|
|
if err := daemon.Mount(container); err != nil {
|
|
return err
|
|
}
|
|
defer daemon.Unmount(container)
|
|
|
|
rootIDs := daemon.idMappings.RootPair()
|
|
if err := container.SetupWorkingDirectory(rootIDs); err != nil {
|
|
return err
|
|
}
|
|
|
|
for spec := range config.Volumes {
|
|
name := stringid.GenerateNonCryptoID()
|
|
destination := filepath.Clean(spec)
|
|
|
|
// Skip volumes for which we already have something mounted on that
|
|
// destination because of a --volume-from.
|
|
if container.IsDestinationMounted(destination) {
|
|
continue
|
|
}
|
|
path, err := container.GetResourcePath(destination)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
stat, err := os.Stat(path)
|
|
if err == nil && !stat.IsDir() {
|
|
return fmt.Errorf("cannot mount volume over existing file, file exists %s", path)
|
|
}
|
|
|
|
v, err := daemon.volumes.CreateWithRef(name, hostConfig.VolumeDriver, container.ID, nil, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := label.Relabel(v.Path(), container.MountLabel, true); err != nil {
|
|
return err
|
|
}
|
|
|
|
container.AddMountPointWithVolume(destination, v, true)
|
|
}
|
|
return daemon.populateVolumes(container)
|
|
}
|
|
|
|
// populateVolumes copies data from the container's rootfs into the volume for non-binds.
|
|
// this is only called when the container is created.
|
|
func (daemon *Daemon) populateVolumes(c *container.Container) error {
|
|
for _, mnt := range c.MountPoints {
|
|
if mnt.Volume == nil {
|
|
continue
|
|
}
|
|
|
|
if mnt.Type != mounttypes.TypeVolume || !mnt.CopyData {
|
|
continue
|
|
}
|
|
|
|
logrus.Debugf("copying image data from %s:%s, to %s", c.ID, mnt.Destination, mnt.Name)
|
|
if err := c.CopyImagePathContent(mnt.Volume, mnt.Destination); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|