[vagrant-up] Specifying options for 'docker run'

[c***@gmail.com]

Hello, all

I have an Arch-Linux-based container image containing systemd, the SSH
server plus my application bits.

In order to run systemd, I need to include '--add-cap=ALL' in the
options for 'docker run'.

As far as I can see, vagrant's docker provider does not let me
specify such options, so 'vagrant up' always fails.

My questions:

1. have I missed something

2. is such a feature planned in an upcoming release of vagrant

3. Am I just 'Out Of Luck'


Some more details, in case they might be useful:

Docker version: 1.3.1
Vagrant version: 1.6.3
systemd version: 217

---------------------------------------------------
A shell command that works:

docker run -t --rm \
-e "container=docker" \
--cap-add=ALL \
-v /sys/fs/cgroup:/sys/fs/cgroup:ro \
-p 2222:22 \
localhost:5000/dafs/archlinux:stage2 \
/sbin/init

----------------------------------------------------
A Vagrantfile that fails

Vagrant.configure("2") do |config|
config.vm.provider "docker" do |d|
d.image = "localhost:5000/dafs/archlinux:stage2"
d.env = { "container" => "docker" }
d.volumes = [
"/sys/fs/cgroup:/sys/fs/cgroup:ro"
]
d.cmd = [ "/sbin/init" ]
d.remains_running = true
d.has_ssh = true
end
config.ssh.username="vagrant"
config.ssh.private_key_path="~/.vagrant.d/insecure_private_key"
end

----------------------------------------------------
The failure messages:

VAGRANT_DEFAULT_PROVIDER=docker vagrant up
Bringing machine 'default' up with 'docker' provider...
==> default: Creating the container...
default: Name: dafs_default_1415886892
default: Image: localhost:5000/dafs/archlinux:stage2
default: Cmd: /sbin/init
default: Volume: /sys/fs/cgroup:/sys/fs/cgroup:ro
default: Volume: /var/cache/pacman/pkg:/var/cache/pacman/pkg
default: Volume: /mnt/repo/projects/dafs:/vagrant
default:
default: Container created: 7b1ce187354d9884
==> default: Starting container...
==> default: Waiting for machine to boot. This may take a few minutes...
default: SSH address: 172.17.0.13:22
default: SSH username: vagrant
default: SSH auth method: private key
default: Warning: Connection refused. Retrying...
default: Warning: Connection refused. Retrying...

(some time later ...)

default: Warning: Connection refused. Retrying...
^C==> default: Waiting for cleanup before exiting...
Vagrant exited after cleanup due to external interrupt.

[Alvaro Miranda Aguilera]

Hello,

did you check this:

https://docs.vagrantup.com/v2/docker/configuration.html


-

create_args (array of strings) - Additional arguments to pass to docker
run when the container is started. This can be used to set parameters
that aren't exposed via the Vagrantfile.

Post by c***@gmail.com
Hello, all
I have an Arch-Linux-based container image containing systemd, the SSH
server plus my application bits.
In order to run systemd, I need to include '--add-cap=ALL' in the
options for 'docker run'.
As far as I can see, vagrant's docker provider does not let me
specify such options, so 'vagrant up' always fails.
1. have I missed something
2. is such a feature planned in an upcoming release of vagrant
3. Am I just 'Out Of Luck'
Docker version: 1.3.1
Vagrant version: 1.6.3
systemd version: 217
---------------------------------------------------
docker run -t --rm \
-e "container=docker" \
--cap-add=ALL \
-v /sys/fs/cgroup:/sys/fs/cgroup:ro \
-p 2222:22 \
localhost:5000/dafs/archlinux:stage2 \
/sbin/init
----------------------------------------------------
A Vagrantfile that fails
Vagrant.configure("2") do |config|
config.vm.provider "docker" do |d|
d.image = "localhost:5000/dafs/archlinux:stage2"
d.env = { "container" => "docker" }
d.volumes = [
"/sys/fs/cgroup:/sys/fs/cgroup:ro"
]
d.cmd = [ "/sbin/init" ]
d.remains_running = true
d.has_ssh = true
end
config.ssh.username="vagrant"
config.ssh.private_key_path="~/.vagrant.d/insecure_private_key"
end
----------------------------------------------------
VAGRANT_DEFAULT_PROVIDER=docker vagrant up
Bringing machine 'default' up with 'docker' provider...
==> default: Creating the container...
default: Name: dafs_default_1415886892
default: Image: localhost:5000/dafs/archlinux:stage2
default: Cmd: /sbin/init
default: Volume: /sys/fs/cgroup:/sys/fs/cgroup:ro
default: Volume: /var/cache/pacman/pkg:/var/cache/pacman/pkg
default: Volume: /mnt/repo/projects/dafs:/vagrant
default: Container created: 7b1ce187354d9884
==> default: Starting container...
==> default: Waiting for machine to boot. This may take a few minutes...
default: SSH address: 172.17.0.13:22
default: SSH username: vagrant
default: SSH auth method: private key
default: Warning: Connection refused. Retrying...
default: Warning: Connection refused. Retrying...
(some time later ...)
default: Warning: Connection refused. Retrying...
^C==> default: Waiting for cleanup before exiting...
Vagrant exited after cleanup due to external interrupt.
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[c***@gmail.com]

Thank you so much, that is exactly what I was missing!

I added `d.create_args = [ "--cap-add=ALL" ]` to the Vagrantfile and now
everything works perfectly!

Post by c***@gmail.com
Hello,
https://docs.vagrantup.com/v2/docker/configuration.html
-
create_args (array of strings) - Additional arguments to pass to docker
run when the container is started. This can be used to set parameters
that aren't exposed via the Vagrantfile.