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introduce Containerd-snapshotter feature flag

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Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
This commit is contained in:
Nicolas De Loof 2022-06-22 09:05:21 +02:00
parent 74286cba8c
commit 33121d3d45
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GPG key ID: 9858809D6F8F6E7E
2 changed files with 16 additions and 4 deletions
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10
daemon/daemon.go
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@ -146,6 +146,16 @@ func (daemon *Daemon) Features() *map[string]bool {
return &daemon.configStore.Features
}
// usesSnapshotter returns true if feature flag to use containerd snapshotter is enabled
func (daemon *Daemon) usesSnapshotter() bool {
if daemon.configStore.Features != nil {
if b, ok := daemon.configStore.Features["containerd-snapshotter"]; ok {
return b
}
}
return false
}
// RegistryHosts returns registry configuration in containerd resolvers format
func (daemon *Daemon) RegistryHosts() docker.RegistryHosts {
var (

4
daemon/oci_linux.go
View file

@ -720,17 +720,19 @@ func sysctlExists(s string) bool {
// WithCommonOptions sets common docker options
func WithCommonOptions(daemon *Daemon, c *container.Container) coci.SpecOpts {
return func(ctx context.Context, _ coci.Client, _ *containers.Container, s *coci.Spec) error {
if c.BaseFS == nil {
if c.BaseFS == nil && !daemon.usesSnapshotter() {
return errors.New("populateCommonSpec: BaseFS of container " + c.ID + " is unexpectedly nil")
}
linkedEnv, err := daemon.setupLinkedContainers(c)
if err != nil {
return err
}
if !daemon.usesSnapshotter() {
s.Root = &specs.Root{
Path: c.BaseFS.Path(),
Readonly: c.HostConfig.ReadonlyRootfs,
}
}
if err := c.SetupWorkingDirectory(daemon.idMapping.RootPair()); err != nil {
return err
}