Files that are suffixed with `_linux.go` or `_windows.go` are
already only built on Linux / Windows, so these build-tags
were redundant.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 6ed1163c98703f8dd0693cecbadc84d2cda811c3
Component: engine
The fsmagic check was always performed on "data-root" (`/var/lib/docker`),
not on the storage-driver's home directory (e.g. `/var/lib/docker/<somedriver>`).
This caused detection to be done on the wrong filesystem in situations
where `/var/lib/docker/<somedriver>` was a mount, and a different
filesystem than `/var/lib/docker` itself.
This patch checks if the storage-driver's home directory exists, and only
falls back to `/var/lib/docker` if it doesn't exist.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: f9c8fa305e1501d8056f8744cb193a720aab0e13
Component: engine
Add a way to specify a custom graphdriver priority list
during build. This can be done with something like
go build -ldflags "-X github.com/docker/docker/daemon/graphdriver.priority=overlay2,devicemapper"
As ldflags are already used by the engine build process, and it seems
that only one (last) `-ldflags` argument is taken into account by go,
an envoronment variable `DOCKER_LDFLAGS` is introduced in order to
be able to append some text to `-ldflags`. With this in place,
using the feature becomes
make DOCKER_LDFLAGS="-X github.com/docker/docker/daemon/graphdriver.priority=overlay2,devicemapper" dynbinary
The idea behind this is, the priority list might be different
for different distros, so vendors are now able to change it
without patching the source code.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Upstream-commit: 17708e72a7ef29fb1d4b03fbded1c5e4c08105fd
Component: engine
It was causing the error message to be
'overlay' is not supported over <unknown>
instead of
'overlay' is not supported over ecryptfs
Signed-off-by: Iago López Galeiras <iago@kinvolk.io>
Upstream-commit: ddb31b4fdf7311ad6c7e62aa15b5f6da16518e77
Component: engine
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>
Upstream-commit: 069fdc8a083cb1663e4f86fe3fd9b9a1aebc3e54
Component: engine
Now that overlay has matured, using
overlay is a better choice than devicemapper
on loopback devices.
This change promotes overlay in the
priority list. It also adds the
overlay2 graphdriver to the list
because overlay2 (if supported)
should be preferred over overlay.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 299beff1c4e2406d1e96c90a9e86e0770dd4342d
Component: engine
For things that we can check if they are mounted by using their fsmagic
we should use that and for others do it the slow way.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Upstream-commit: 1ba05cdb6ade7e3abd4c4c3221b5e27645460111
Component: engine
Instead of implementing refcounts at each graphdriver, implement this in
the layer package which is what the engine actually interacts with now.
This means interacting directly with the graphdriver is no longer
explicitly safe with regard to Get/Put calls being refcounted.
In addition, with the containerd, layers may still be mounted after
a daemon restart since we will no longer explicitly kill containers when
we shutdown or startup engine.
Because of this ref counts would need to be repopulated.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 65d79e3e5e537039b244afd7eda29e721a93d84f
Component: engine
Instead of implementing refcounts at each graphdriver, implement this in
the layer package which is what the engine actually interacts with now.
This means interacting directly with the graphdriver is no longer
explicitly safe with regard to Get/Put calls being refcounted.
In addition, with the containerd, layers may still be mounted after
a daemon restart since we will no longer explicitly kill containers when
we shutdown or startup engine.
Because of this ref counts would need to be repopulated.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 563d0711f83952e561a0d7d5c48fef9810b4f010
Component: engine
Fixes#9960
This adds the output of a "Backing Filesystem:" entry to `docker info`
to overlay, aufs, and devicemapper graphdrivers. The default list
includes a fairly complete list of common filesystem names from
linux/include/uapi/linux/magic.h, but if the backing filesystem is not
recognized, the code will simply show "<unknown>"
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>
Upstream-commit: 48b1dd0084904678728817d728bb9ab1c0183aad
Component: engine
