使用Ansible在OS X上运行docker任务的问题

Question

我只是想告诉Ansible在我的OS X机器上构建一个docker镜像,这是我得到的错误:

$ ansible-playbook main.yml

PLAY [localhost] **************************************************************

GATHERING FACTS ***************************************************************
ok: [localhost]

TASK: [Build docker image from dockerfiles] ***********************************
failed: [localhost] => {"changed": false, "failed": true}
msg: ConnectionError(ProtocolError('Connection aborted.', error(2, 'No such file or directory')),)

FATAL: all hosts have already failed -- aborting

PLAY RECAP ********************************************************************
           to retry, use: --limit @/Users/ronny/main.retry

localhost                  : ok=1    changed=0    unreachable=0    failed=1

这是我正在使用的main.yml文件:

---
- hosts: localhost
  connection: local

  tasks:
        - name: Build docker image from dockerfiles
          docker_image:
            name: testimage
            path: test
            state: build

我的Dockerfile:

# Build an example Docker container image. 
FROM busybox 
MAINTAINER Jeff Geerling <geerlingguy@mac.com>

# Run a command when the container starts. 
CMD ["/bin/true”]”

我的docker文件位于cookbook/test/Dockerfile中

main.yml文件位于cookbook/main.yml中

我在OS X上运行它.

我完全失去了这一点,任何帮助将非常感激.

编辑:

为了回应我使用-vvvv的Nathanials请求,我收到以下错误:

(这是路径设置到子目录"test"的地方)

TASK: [Build docker image from dockerfiles] ***********************************
<localhost> ESTABLISH CONNECTION FOR USER: ronny
<localhost> REMOTE_MODULE docker_image name=test state=build path=test
<localhost> EXEC ssh -C -tt -vvv -o ControlMaster=auto -o ControlPersist=60s -o ControlPath="/Users/ronny/.ansible/cp/ansible-ssh-%h-%p-%r" -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o ConnectTimeout=10 localhost /bin/sh -c 'mkdir -p $HOME/.ansible/tmp/ansible-tmp-1433079033.35-4833710313724 && chmod a+rx $HOME/.ansible/tmp/ansible-tmp-1433079033.35-4833710313724 && echo $HOME/.ansible/tmp/ansible-tmp-1433079033.35-4833710313724'
<localhost> PUT /var/folders/s1/g6kswg952gvg5df6wld173480000gn/T/tmp3g0PIz TO /Users/ronny/.ansible/tmp/ansible-tmp-1433079033.35-4833710313724/docker_image
<localhost> EXEC ssh -C -tt -vvv -o ControlMaster=auto -o ControlPersist=60s -o ControlPath="/Users/ronny/.ansible/cp/ansible-ssh-%h-%p-%r" -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o ConnectTimeout=10 localhost /bin/sh -c 'LANG=en_US.UTF-8 LC_CTYPE=en_US.UTF-8 /usr/bin/python /Users/ronny/.ansible/tmp/ansible-tmp-1433079033.35-4833710313724/docker_image; rm -rf /Users/ronny/.ansible/tmp/ansible-tmp-1433079033.35-4833710313724/ >/dev/null 2>&1'
failed: [localhost] => {"failed": true, "parsed": false}
Traceback (most recent call last):
  File "/Users/ronny/.ansible/tmp/ansible-tmp-1433079033.35-4833710313724/docker_image", line 1852, in <module>
    main()
  File "/Users/ronny/.ansible/tmp/ansible-tmp-1433079033.35-4833710313724/docker_image", line 235, in main
    image_id = manager.build()
  File "/Users/ronny/.ansible/tmp/ansible-tmp-1433079033.35-4833710313724/docker_image", line 140, in build
    stream = self.client.build(self.path, tag=':'.join([self.name, self.tag]), nocache=self.nocache, rm=True, stream=True)
  File "/usr/local/lib/python2.7/site-packages/docker/client.py", line 319, in build
    raise TypeError("You must specify a directory to build in path")
TypeError: You must specify a directory to build in path
OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011
debug1: Reading configuration data /etc/ssh_config
debug1: /etc/ssh_config line 20: Applying options for *
debug1: auto-mux: Trying existing master
debug2: fd 3 setting O_NONBLOCK
debug2: mux_client_hello_exchange: master version 4
debug3: mux_client_forwards: request forwardings: 0 local, 0 remote
debug3: mux_client_request_session: entering
debug3: mux_client_request_alive: entering
debug3: mux_client_request_alive: done pid = 78798
debug3: mux_client_request_session: session request sent
debug1: mux_client_request_session: master session id: 2
debug3: mux_client_read_packet: read header failed: Broken pipe
debug2: Received exit status from master 0
Shared connection to localhost closed.


FATAL: all hosts have already failed -- aborting

PLAY RECAP ********************************************************************
           to retry, use: --limit @/Users/ronny/main.retry

localhost                  : ok=1    changed=0    unreachable=0    failed=1

为了响应上述错误,我尝试给出Dockerfile所在的构建目录的完整路径

path: "/Users/ronny/projects/dockers/tutorial/ansibledocker/test”

然后我得到了:

TASK: [Build docker image from dockerfiles] ***********************************
<localhost> ESTABLISH CONNECTION FOR USER: ronny
<localhost> REMOTE_MODULE docker_image name=test state=build path=/Users/ronny/projects/dockers/tutorial/ansibledocker/test
<localhost> EXEC ssh -C -tt -vvv -o ControlMaster=auto -o ControlPersist=60s -o ControlPath="/Users/ronny/.ansible/cp/ansible-ssh-%h-%p-%r" -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o ConnectTimeout=10 localhost /bin/sh -c 'mkdir -p $HOME/.ansible/tmp/ansible-tmp-1433079137.87-213359153110012 && chmod a+rx $HOME/.ansible/tmp/ansible-tmp-1433079137.87-213359153110012 && echo $HOME/.ansible/tmp/ansible-tmp-1433079137.87-213359153110012'
<localhost> PUT /var/folders/s1/g6kswg952gvg5df6wld173480000gn/T/tmplH4Lln TO /Users/ronny/.ansible/tmp/ansible-tmp-1433079137.87-213359153110012/docker_image
<localhost> EXEC ssh -C -tt -vvv -o ControlMaster=auto -o ControlPersist=60s -o ControlPath="/Users/ronny/.ansible/cp/ansible-ssh-%h-%p-%r" -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o ConnectTimeout=10 localhost /bin/sh -c 'LANG=en_US.UTF-8 LC_CTYPE=en_US.UTF-8 /usr/bin/python /Users/ronny/.ansible/tmp/ansible-tmp-1433079137.87-213359153110012/docker_image; rm -rf /Users/ronny/.ansible/tmp/ansible-tmp-1433079137.87-213359153110012/ >/dev/null 2>&1'
failed: [localhost] => {"changed": false, "failed": true}
msg: ConnectionError(ProtocolError('Connection aborted.', error(2, 'No such file or directory')),)

FATAL: all hosts have already failed -- aborting

PLAY RECAP ********************************************************************
           to retry, use: --limit @/Users/ronny/main.retry

localhost                  : ok=1    changed=0    unreachable=0    failed=1

编辑#2

好的,我尝试做了不同的事情.而不是建立一个图像,我试图简单地开始一个.在lib/python2.7/site-packages/ansible/modules/core/cloud/docker/docker.py中挖掘之后我注意到在第558行的DockerManager.init类中,他们设置了一些环境变量:

env_host = os.getenv('DOCKER_HOST')
env_docker_verify = os.getenv('DOCKER_TLS_VERIFY')
env_cert_path = os.getenv('DOCKER_CERT_PATH')
env_docker_hostname = os.getenv('DOCKER_TLS_HOSTNAME')

所以我将这些值吐出到日志文件中,并且看,没有一个被设置.

然后当我直接在main.yml中设置它们时:

- name: start container
      docker:
        name: mydata
        image: busybox
        state: present
      environment:
        DOCKER_HOST: tcp://192.168.59.103:2376
        DOCKER_TLS_VERIFY: 1
        DOCKER_CERT_PATH: /Users/ronny/.boot2docker/certs/boot2docker-vm
        DOCKER_TLS_HOSTNAME: boot2docker

我能够成功启动容器!

但是,此方法不适用于我的初始问题,即构建docker镜像.

在docker_image.py中进一步挖掘我注意到它在第188行(我说"周围",因为我有记录中断,所以我不知道确切的行)分解,它有以下代码:

   images = self.client.images()

所以更多的挖掘,我看到self.client正在检查docker_url at 'unix://var/run/docker.sock'

但是在这个链接上我看到OS X上不存在/var/run/docker.sock,而是一个回复说

/var/run/docker.sock将不在您的OSX文件系统上 - Docker守护程序在boot2docker VM中运行 - 这就是unix套接字所在的位置.

该串行文件也与docker socket无关.

oyu需要与DOCKER_HOST环境中指定的TCP套接字进行通信.

现在我尝试将docker_url设置为DOCKER_HOST URL,因为此模块的描述说:

docker_url:description: - 要发出命令所需的docker主机的URL:false default:unix://var/run/docker.sock别名:[]

但是当我将它设置为DOCKER_HOST地址时,我收到了一个错误.

这是main.yml

   - name: Build docker image from dockerfiles 
          docker_image:
            name: testimage 
#            path: test
            path: /Users/ronny/projects/dockers/tutorial/ansibledocker/test
            state: build
            docker_url: 192.168.59.103:2376

这是错误:

failed: [localhost] => {"changed": false, "failed": true}
msg: ConnectionError(ProtocolError('Connection aborted.', BadStatusLine('\x15\x03\x01\x00\x02\x02\n',)),)

FATAL: all hosts have already failed -- aborting

PLAY RECAP ********************************************************************
           to retry, use: --limit @/Users/ronny/main.retry

localhost                  : ok=3    changed=0    unreachable=0    failed=1

有任何想法吗？

Answer 1

作为解决方法，您可以使用代理“socat-container”，它将您的请求从 tcp 地址路由到 unix 套接字。看看这个页面。boot2docker 上的端口 2376 仅适用于 ipv6 而不是 ipv4（我没有找到改变这一点的方法，我没有深入研究这个问题，也不喜欢对 boot2docker VM 进行更改的想法）。我还在 VirtualBox 中为我的本地主机添加了 NAT 转换（ansible inventory localhost）

小心使用 ansible 和 docker-py

你需要：

• 安塞波1.9.2
• docker_api_版本：1.18

对我有用。