Improve error for docker exec & LXC

Signed-off-by: Victor Vieux <vieux@docker.com>
Adding details on how to use .dockerignore file
Addresses #7724

Signed-off-by: Srini Brahmaroutu <srbrahma@us.ibm.com>
devmapper: include the version in `info`

Signed-off-by: Vincent Batts <vbatts@redhat.com>
not not -> not

Signed-off-by: Victor Vieux <vieux@docker.com>
hack: TIMEOUT (for controlling test timeout) and forwarding of
BUILDFLAGS to binary/dynbinary.

Docker-DCO-1.1-Signed-off-by: Erik Hollensbe <github@hollensbe.org> (github: erikh)
Merge pull request #8243 from vieux/not_not

not not -> not
Merge pull request #8239 from erikh/hack_options

hack: TIMEOUT (for controlling test timeout) and forwarding of BUILDFLAGS to binary/dynbinary.
Merge pull request #8241 from vbatts/vbatts-devmapper_version

devmapper: include the version in `info`
API: Provide the HostConfig during "run".

Currently, the HostConfig is only passed from the CLI to Docker only
when issuing a docker create, but not when doing a docker run.

In the near future, in order to allocate ports at creation time rather
than start time, we will need to have the HostConfig readily available
at container creation.

This PR makes the client always pass the HostConfig when creating a
container (regardless of whether it's for a run or create).

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>
Merge pull request #8191 from vieux/improve_error_exec_lxc

Improve error for docker exec & LXC
pkg/tarsum: fix panic with dynamic buffer

When read is called on a tarsum with a two different read sizes, specifically the second call larger than the first, the dynamic buffer does not get reallocated causing a slice read error.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
Merge pull request #8247 from aluzzardi/f-run-hostconfig

API: Provide the HostConfig during "run".
Merge pull request #8237 from dmcgowan/tarsum_buffer_fix

tarsum: fix panic with dynamic buffer
Merge pull request #8209 from brahmaroutu/doc_dockerignore_7724

Adding details on how to use .dockerignore file
Documenting Container Tty resize api

Addresses #7840

Signed-off-by: Srini Brahmaroutu <srbrahma@us.ibm.com>