add timeout parameter to cli and driver

[avoidik]

hello,

this is an attempt to make timeout settings consistent

(please consider this contribution under any appropriate permissive and open-source friendly license)

[avoidik]

here is how to change timeout of the remote driver

$ docker buildx create \
  --name remote-builder \
  --node linux-amd64 \
  --platform linux/amd64 \
  --bootstrap \
  --use \
  --driver-opt timeout=10s \
  ssh://127.0.0.2
[+] Building 10.0s (1/1) FINISHED
 => ERROR [internal] waiting for connection                                                                                                                              10.0s
------
 > [internal] waiting for connection:
------
ERROR: context deadline exceeded

without the timeout property

docker buildx create \
  --name remote-builder \
  --node linux-amd64 \
  --platform linux/amd64 \
  --bootstrap \
  --use \
  ssh://127.0.0.2
[+] Building 120.0s (1/1) FINISHED
 => ERROR [internal] waiting for connection                                                                                                                             120.0s
------
 > [internal] waiting for connection:
------
ERROR: context deadline exceeded

in case of CLI commands

$ BUILDX_TIMEOUT=5s docker buildx ...

[avoidik]

CLI timeout consistency info

Command	Has timeout logic implemented	Inherits global timeout
buildx bake	No	No
buildx build	No	No
buildx create	Yes	Yes
buildx dial-stdio	No	No
buildx du	No	No
buildx imagetools create	No	No
buildx imagetools inspect	No	No
buildx inspect	Yes	Yes
buildx ls	Yes	Yes
buildx prune	No	No
buildx rm	Yes	Yes
buildx stop	No	No
buildx install	N/A	N/A
buildx uninstall	N/A	N/A
buildx use	N/A	N/A
buildx version	N/A	N/A

Drivers timeout consistency info

Driver	Default timeout	Timeout can be changed using --driver-opt
docker	120s	No
docker-container	120s	No
kubernetes	120s	Yes, timeout=60s
remote	120s	Yes, timeout=60s

[CamJN]

I took over this PR at https://github.com/docker/buildx/pull/3159