Before this change, volume management was relying on the fact that
everything the plugin mounts is visible on the host within the plugin's
rootfs. In practice this caused some issues with mount leaks, so we
changed the behavior such that mounts are not visible on the plugin's
rootfs, but available outside of it, which breaks volume management.
To fix the issue, allow the plugin to scope the path correctly rather
than assuming that everything is visible in `p.Rootfs`.
In practice this is just scoping the `PropagatedMount` paths to the
correct host path.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 0e5eaf8ee32662182147f5f62c1bfebef66f5c47
Component: engine
Closes#32663 by adding CreatedAt field when volume is created.
Displaying CreatedAt value when volume is inspected
Adding tests to verfiy the new field is correctly populated
Signed-off-by: Marianna <mtesselh@gmail.com>
Moving CreatedAt tests from the CLI
Moving the tests added for the newly added CreatedAt field for Volume, from CLI to API tests
Signed-off-by: Marianna <mtesselh@gmail.com>
Upstream-commit: a46f757c4043031379362c5d6b3bad7562ab9fed
Component: engine
Legacy plugins expect host-relative paths (such as for Volume.Mount).
However, a containerized plugin cannot respond with a host-relative
path. Therefore, this commit modifies new volume plugins' paths in Mount
and List to prepend the container's rootfs path.
This introduces a new PropagatedMount field in the Plugin Config.
When it is set for volume plugins, RootfsPropagation is set to rshared
and the path specified by PropagatedMount is bind-mounted with rshared
prior to launching the container. This is so that the daemon code can
access the paths returned by the plugin from the host mount namespace.
Signed-off-by: Tibor Vass <tibor@docker.com>
Upstream-commit: c54b717caf1a55e525ce180bfcb42addd59c6633
Component: engine
This is similar to network scopes where a volume can either be `local`
or `global`. A `global` volume is one that exists across the entire
cluster where as a `local` volume exists on a single engine.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 2f40b1b281a3be8f34d82a5170988ee46ea1f442
Component: engine
This generates an ID string for calls to Mount/Unmount, allowing drivers
to differentiate between two callers of `Mount` and `Unmount`.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 2b6bc294fc7f9e08a9091833b021b7d2a01ad2a6
Component: engine
The `Status` field is a `map[string]interface{}` which allows the driver to pass
back low-level details about the underlying volume.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 36a1c56cf555f8fe9ceabeebb8fc956e05863fc7
Component: engine
Implements a `CachedPath` function on the volume plugin adapter that we
call from the volume list function instead of `Path.
If a driver does not implement `CachedPath` it will just call `Path`.
Also makes sure we store the path on Mount and remove the path on
Unmount.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 9e6b1852a78eda6ed2cb255d6be8a0d0e5a5ca40
Component: engine
In cases where the a plugin responds with both a null or empty volume
and a null or empty Err, the daemon would panic.
This is because we assumed the idiom if `err` is nil, then `v` must not
be but in reality the plugin may return whatever it wants and we want to
make sure it doesn't harm the daemon.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 96c79a1934dd52d2a6f648e519b5d4ac60ac8ca1
Component: engine
Hacks were added as interim support for 1.10 but should not be needed
for 1.11.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 3403a01b07a73defe9f15c30e16ec8dfcab50439
Component: engine
Use a back-compat struct to handle listing volumes for volumes we know
about (because, presumably, they are being used by a container) for
volume drivers which don't yet support `List`.
Adds a fall-back for the volume driver `Get` call, which will use
`Create` when the driver returns a `404` for `Get`. The old behavior was
to always use `Create` to get a volume reference.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: f6c20d9b22ec9913f67b6c2ebdb5ef07c87b8cd7
Component: engine
Makes `docker volume ls` and `docker volume inspect` ask the volume
drivers rather than only using what is cached locally.
Previously in order to use a volume from an external driver, one would
either have to use `docker volume create` or have a container that is
already using that volume for it to be visible to the other volume
API's.
For keeping uniqueness of volume names in the daemon, names are bound to
a driver on a first come first serve basis. If two drivers have a volume
with the same name, the first one is chosen, and a warning is logged
about the second one.
Adds 2 new methods to the plugin API, `List` and `Get`.
If a plugin does not implement these endpoints, a user will not be able
to find the specified volumes as well requests go through the drivers.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: d3eca4451d264aac564594fe46b8c097bd85a5cc
Component: engine
Sebastiaan van Stijn
Brian Goff
Daniel Nephin
Derek McGowan
Josh Soref
Marianna
Tibor Vass
Yanqiang Miao
allencloud
Evan Hazlett
Stephen Rust
David Calavera