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readonly: pass RW rootfs to runtime, and let the runtime remount it as RO

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Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
This commit is contained in:
Akihiro Suda
2017-09-28 07:46:26 +00:00
parent 70b353dff2
commit 27023c7fa2
2 changed files with 23 additions and 10 deletions
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19
spec_opts_unix.go
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@@ -138,17 +138,28 @@ func WithImageConfig(i Image) SpecOpts {
}
// WithRootFSPath specifies unmanaged rootfs path.
func WithRootFSPath(path string, readonly bool) SpecOpts {
func WithRootFSPath(path string) SpecOpts {
return func(_ context.Context, _ *Client, _ *containers.Container, s *specs.Spec) error {
s.Root = &specs.Root{
Path: path,
Readonly: readonly,
if s.Root == nil {
s.Root = &specs.Root{}
}
s.Root.Path = path
// Entrypoint is not set here (it's up to caller)
return nil
}
}
// WithRootFSReadonly sets specs.Root.Readonly to true
func WithRootFSReadonly() SpecOpts {
return func(_ context.Context, _ *Client, _ *containers.Container, s *specs.Spec) error {
if s.Root == nil {
s.Root = &specs.Root{}
}
s.Root.Readonly = true
return nil
}
}
// WithResources sets the provided resources on the spec for task updates
func WithResources(resources *specs.LinuxResources) UpdateTaskOpts {
return func(ctx context.Context, client *Client, r *UpdateTaskInfo) error {