idtools.MkdirAllAndChown on Windows does not chown directories, which makes
idtools.MkdirAllAndChown() just an alias for system.MkDirAll().
Also setting the filemode to `0`, as changing filemode is a no-op on Windows as
well; both of these changes should make it more transparent that no chown'ing,
nor changing filemode takes place.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
go-winio now defines this function, so we can consume that.
Note that there's a difference between the old implementation and the original
one (added in 1cb9e9b44e). The old implementation
had special handling for win32 error codes, which was removed in the go-winio
implementation in 0966e1ad56
As `go-winio.GetFileSystemType()` calls `filepath.VolumeName(path)` internally,
this patch also removes the `string(home[0])`, which is redundant, and could
potentially panic if an empty string would be passed.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Finish the refactor which was partially completed with commit
34536c498d, passing around IdentityMapping structs instead of pairs of
[]IDMap slices.
Existing code which uses []IDMap relies on zero-valued fields to be
valid, empty mappings. So in order to successfully finish the
refactoring without introducing bugs, their replacement therefore also
needs to have a useful zero value which represents an empty mapping.
Change IdentityMapping to be a pass-by-value type so that there are no
nil pointers to worry about.
The functionality provided by the deprecated NewIDMappingsFromMaps
function is required by unit tests to to construct arbitrary
IdentityMapping values. And the daemon will always need to access the
mappings to pass them to the Linux kernel. Accommodate these use cases
by exporting the struct fields instead. BuildKit currently depends on
the UIDs and GIDs methods so we cannot get rid of them yet.
Signed-off-by: Cory Snider <csnider@mirantis.com>
The io/ioutil package has been deprecated in Go 1.16. This commit
replaces the existing io/ioutil functions with their new definitions in
io and os packages.
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
This ensures the storage-opts applies to all operations by the graph
drivers, replacing the merging of storage-opts into container storage
config at container-creation time, and hence applying storage-opts to
non-container operations like `COPY` and `ADD` in the builder.
Signed-off-by: Paul "TBBle" Hampson <Paul.Hampson@Pobox.com>
This applies the 127GB default WCOW Sandbox size to not just `RUN` under
`docker build` (as was previously the case) but to `COPY` and `ADD`
under `docker build` and also to `docker run`.
It also removes an inconsistency that the 127GB size was not applied
when `--platform windows` was not passed to `docker build`, but WCOW was
still used as a platform default, e.g. Docker Desktop for Windows in
Windows Containers mode.
Signed-off-by: Paul "TBBle" Hampson <Paul.Hampson@Pobox.com>
This pulls in the migration of go-winio/backuptar from the bundled fork
of archive/tar from Go 1.6 to using Go's current archive/tar unmodified.
This fixes the failure to import an OCI layer (tar stream) containing a
file larger than 8gB.
Fixes: #40444
Signed-off-by: Paul "TBBle" Hampson <Paul.Hampson@Pobox.com>
Format the source according to latest goimports.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: John Howard <jhoward@microsoft.com>
This is a fix for a few related scenarios where it's impossible to remove layers or containers
until the host is rebooted. Generally (or at least easiest to repro) through a forced daemon kill
while a container is running.
Possibly slightly worse than that, as following a host reboot, the scratch layer would possibly be leaked and
left on disk under the dataroot\windowsfilter directory after the container is removed.
One such example of a failure:
1. run a long running container with the --rm flag
docker run --rm -d --name test microsoft/windowsservercore powershell sleep 30
2. Force kill the daemon not allowing it to cleanup. Simulates a crash or a host power-cycle.
3. (re-)Start daemon
4. docker ps -a
PS C:\control> docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
7aff773d782b malloc "powershell start-sl…" 11 seconds ago Removal In Progress malloc
5. Try to remove
PS C:\control> docker rm 7aff
Error response from daemon: container 7aff773d782bbf35d95095369ffcb170b7b8f0e6f8f65d5aff42abf61234855d: driver "windowsfilter" failed to remove root filesystem: rename C:\control\windowsfilter\7aff773d782bbf35d95095369ffcb170b7b8f0e6f8f65d5aff42abf61234855d C:\control\windowsfilter\7aff773d782bbf35d95095369ffcb170b7b8f0e6f8f65d5aff42abf61234855d-removing: Access is denied.
PS C:\control>
Step 5 fails.
This implements chown support on Windows. Built-in accounts as well
as accounts included in the SAM database of the container are supported.
NOTE: IDPair is now named Identity and IDMappings is now named
IdentityMapping.
The following are valid examples:
ADD --chown=Guest . <some directory>
COPY --chown=Administrator . <some directory>
COPY --chown=Guests . <some directory>
COPY --chown=ContainerUser . <some directory>
On Windows an owner is only granted the permission to read the security
descriptor and read/write the discretionary access control list. This
fix also grants read/write and execute permissions to the owner.
Signed-off-by: Salahuddin Khan <salah@docker.com>
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.
This enables docker cp and ADD/COPY docker build support for LCOW.
Originally, the graphdriver.Get() interface returned a local path
to the container root filesystem. This does not work for LCOW, so
the Get() method now returns an interface that LCOW implements to
support copying to and from the container.
Signed-off-by: Akash Gupta <akagup@microsoft.com>
Changes most references of syscall to golang.org/x/sys/
Ones aren't changes include, Errno, Signal and SysProcAttr
as they haven't been implemented in /x/sys/.
Signed-off-by: Christopher Jones <tophj@linux.vnet.ibm.com>
[s390x] switch utsname from unsigned to signed
per 33267e036f
char in s390x in the /x/sys/unix package is now signed, so
change the buildtags
Signed-off-by: Christopher Jones <tophj@linux.vnet.ibm.com>
Signed-off-by: John Howard <jhoward@microsoft.com>
This fixes https://github.com/docker/docker/issues/30278 where
there is a race condition in HCS for RS1 and RS2 builds, and enumeration
of compute systems can return access is denied if a silo is being
torn down in the kernel while HCS is attempting to enumerate them.
