docker - Vagrant 的Docker Provisioner在启动时不会启动容器

Question

我将Docker Provisioner用于Vagrant。他们在docs中说:

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.

这是我的Vagrantfile的一部分:

  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 

但是在 vagrant halt和 vagrant up之后，我的容器停止了。

$vagrant@vagrant-ubuntu-trusty-64:~$ 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

好吧，我没有找到Vagrant无法在启动时启动容器的原因，但是解决方法是使用Docker的restart policies。因此，我更新了Vagrantfile，删除了所有容器，并做了vagrant provision以使用新的重启策略再次运行容器:

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.

现在在 vagrant halt之后，然后启动 vagrant up容器。