Prior to this commit, if a created but exited container bound a port,
and a new container grabed that same port (say for an ssh port forward),
when the initial container came back up it would fail because the port
also got bound to the second container. This commit fixes that behavior
by first looking at what containers are already bound prior to creating
a container.
Use `mask` option for defining subnet on network configuration. Allow
options to be passed through using hash scoping and docker_network and
docker_connect prefixes. Enable public networks. Allow configuration
to define pre-existing networks by name.
This makes the behavior of the docker and hyperv provider consistent with the
virtualbox provider by raising an error on ssh actions if the machine is not
created or not running.
Fixes#8508
Previously, there was no one gesture that would start a VM if it was not
running and run the appropriate provisioners regardless of its original
state. `vagrant up` did nothing if the VM was running, while
`vagrant provision` did nothing if the VM was not running.
Change the semantics of `vagrant up`, via the start actions of the providers,
to go through the provisioning logic even if the VM is already running.
The semantics of `run: "once"` vs `run: "always"` are respected.
Tested with the VirtualBox provider but not the others.
Resolves#4421
Initial work
commands/up: make sure all names to with_target_vms are strings
providers/docker: create a docker host VM if needed
providers/docker: executor abstraction for driver to eventually support remote
providers/docker: vagrant executor
providers/docker: support creating the machine
providers/docker: status works if host VM is gone
providers/docker: use start fence to get real docker output
core: Call preserves stack ordering
core: support Message post option
providers/docker: Guard some features with HasSSH checks
providers/docker: much better messaging around create/destroy
providers/docker: output the container ID on create
providers/docker: copy the hostmachine Vagrantfile to the data dir
providers/docker: should make host machine before any up action
providers/docker: HandleBox before the host machine
providers/virtualbox: functional_vboxsf to disable vboxsf
providers/virtualbox: synced folder usable method should take 2 args
providers/docker: default machine name to :default
