Vagrant docker provisioner doesn't start containers on boot

Question

I use Docker provisioner for Vagrant. They say in the docs:

In addition to pulling images, the Docker provisioner can run and start containers for you. This lets you automatically start services as part of vagrant up.

Here's a part of my Vagrantfile:

  config.vm.provision "docker" do |d|                                                                         
    d.run "jwilder/nginx-proxy",                                                                              
      args: "-v /var/run/docker.sock:/tmp/docker.sock:ro -v /vagrant/certs:/etc/nginx/certs -p 80:80 -p 443:443"
    d.run "redis",                                                                                            
      args: "-v /vagrant/data:/data"                                                                          
    ...
  end 

But after vagrant halt and then vagrant up my containers are stopped.

$vagrant@vagrant-ubuntu-trusty-64:~$ docker ps -a

CONTAINER ID    ..  STATUS      ..             NAMES
6bb965d1a7b9        Exited (137) 2 days ago    redis                 
7f45214f6f06        Exited (2) 2 days ago      jwilder-nginx-proxy   

Answer 1

Well, I didn't find the reason why Vagrant doesn't start containers on boot, but the workaround is to use Docker's restart policies. So, I updated my Vagrantfile, removed all the containers and did vagrant provision to run containers again with new restart policies:

config.vm.provision "docker" do |d|                                                                         
  d.run "jwilder/nginx-proxy",                                                                              
    args: "--restart=always -v /var/run/docker.sock:/tmp/docker.sock:ro -v /vagrant/certs:/etc/nginx/certs -p 80:80 -p 443:443"
  d.run "redis",                                                                                            
    args: "--restart=always -v /vagrant/data:/data"                                                                          
  ...
end

--restart=always

Always restart the container regardless of the exit status. When you specify always, the Docker daemon will try to restart the container indefinitely.

Now after vagrant halt and then vagrant up containers are started.