Question

基本上，我尝试使用mongodump和mongorestore在使用Docker将其启动后初始化mongo数据库。 mongorestore失败，因为它无法连接到容器的主机名。任何帮助，将不胜感激。我已尝试过localhost，但它也无法正常工作。

我的Dockerfile：

FROM mongo

RUN mongodump --host merchdev02.bcinfra.net --port 27017 --db ap
RUN mongorestore --host $(hostname) --port 27017 --db ap

错误：

A Docker command executed by Vagrant didn't complete successfully!
The command run along with the output from the command is shown
below.

Command: "docker" "build" "/mnt/docker_build_52c7cc3c5608022927f471820455e02b"

Stderr: Sending build context to Docker daemon 26.62 kB
Sending build context to Docker daemon 
2014/09/12 12:32:46 The command [/bin/sh -c mongorestore --host $(hostname) --port 27017 --db ap] returned a non-zero code: 255

Stdout: Step 0 : FROM mongo
 ---> 37ee18fca8d2
Step 1 : RUN mongodump --host merchdev02.bcinfra.net --port 27017 --db ap
 ---> Using cache
 ---> 176612e279d2
Step 2 : RUN mongorestore --host $(hostname) --port 27017 --db ap
 ---> Running in 365bd8348ed1
2014-09-12T12:32:46.444+0000 warning: Failed to connect to 172.17.0.25:27017, reason: errno:111 Connection refused
couldn't connect to [5d533df6cbc4:27017] couldn't connect to server 5d533df6cbc4:27017 (172.17.0.25), connection attempt failed

我使用Vagrant来引导Docker。我的Vagrantfile：

VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|

  config.vm.provider "virtualbox" do |v|
    v.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]
  end
  # Setup docker
  config.vm.define "mongo" do |v|
    v.vm.synced_folder "logs", "/var/log/mongodb"
    v.vm.provider "docker" do |d|
      d.vagrant_vagrantfile = "../host-vm/Vagrantfile"
      d.build_dir = "."
      d.ports = ['27017:27017']
      d.remains_running = true
      d.name = "mongo"
    end
  end
end

最后我的主机VM用于Docker容器：

VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.box = "hashicorp/precise64"
  config.vm.provision "docker"
  config.vm.provision "shell", inline:
    "ps aux | grep 'sshd:' | awk '{print $2}' | xargs kill"

  config.vm.network :forwarded_port, guest: 27017, host: 27017
end

Answer 1

mongo容器将mongod设置为其命令CMD["mongod"]，这意味着它在您实际执行docker run ...之前不会运行

我通常总是在我的docker容器中包含一个脚本ADD init.sh，以处理在构建时没有意义的任何此类配置任务。

如何在启动Docker时连接到当前容器？

1 个答案: