Error while fetching server API version

[PREM1980]

ISSUE TYPE

• Bug Report

COMPONENT NAME

anisble-container

ANSIBLE VERSION

ansible 2.3.0.0

CONFIGURATION

Nothing changed

OS / ENVIRONMENT

MAC ..I did try a ubuntu setup and its working fine.

SUMMARY

Trying to create a ansible-container as given in this tutorial but get an error while running anisble-container run.

http://docs.ansible.com/ansible-container/getting_started.html#dipping-a-toe-in-starting-from-scratch

DOcker version (bossa)PREMs-MacBook-Pro:ansible-container-example prem$ docker version Client: Version: 17.03.1-ce API version: 1.27 Go version: go1.7.5 Git commit: c6d412e Built: Tue Mar 28 00:40:02 2017 OS/Arch: darwin/amd64

Server: Version: 17.03.1-ce API version: 1.27 (minimum version 1.12) Go version: go1.7.5 Git commit: c6d412e Built: Fri Mar 24 00:00:50 2017 OS/Arch: linux/amd64 Experimental: true

Error:-

2017-06-14T17:57:35.236681 In conductorcmd_run [container.core] caller_file=/_ansible/container/core.py caller_func=conductorcmd_run caller_line=772 kwargs={u'with_volumes': [], 'repository_data': {}, u'service': [], u'settings': {u'pwd': u'/Users/prem/Documents/bossanova/ansible-container-example', u'conductor_base': u'centos:7'}, u'with_variables': [], u'selinux': True, u'subcommand': u'run', u'debug': True, u'devel': False, u'deployment_output_path': u'/Users/prem/Documents/bossanova/ansible-container-example/ansible-deployment', u'production': False, u'host_user_uid': 501, u'host_user_gid': 20, u'detached': False, 'volume_data': {}, u'roles_path': None} 2017-06-14T17:57:35.247794 GENERATE DEPLOYMENT [container.docker.engine] caller_file=/_ansible/container/docker/engine.py caller_func=generate_orchestration_playbook caller_line=569 namespace=None url=None Traceback (most recent call last): File "/usr/bin/conductor", line 11, in load_entry_point('ansible-container', 'console_scripts', 'conductor')() File "/_ansible/container/init.py", line 19, in wrapped return fn(args, kwargs) File "/_ansible/container/cli.py", line 366, in conductor_commandline params) File "/_ansible/container/init.py", line 19, in wrapped return fn(args, kwargs) File "/_ansible/container/core.py", line 773, in conductorcmd_run playbook = engine.generate_orchestration_playbook(kwargs) File "/_ansible/container/init.py", line 19, in wrapped return fn(*args, kwargs) File "/_ansible/container/docker/engine.py", line 637, in generate_orchestration_playbook for image in self.client.images.list(name=image_name): File "/_ansible/container/docker/engine.py", line 123, in client self._client = docker.from_env(version='auto') File "/usr/lib/python2.7/site-packages/docker/client.py", line 79, in from_env kwargs_from_env(*kwargs)) File "/usr/lib/python2.7/site-packages/docker/client.py", line 36, in init self.api = APIClient(args, **kwargs) File "/usr/lib/python2.7/site-packages/docker/api/client.py", line 141, in init self._version = self._retrieve_server_version() File "/usr/lib/python2.7/site-packages/docker/api/client.py", line 168, in _retrieve_server_version 'Error while fetching server API version: {0}'.format(e) docker.errors.DockerException: Error while fetching server API version: Timeout value connect was Timeout(connect=None, read=None, total=None), but it must be an int, float or None. 2017-06-14T13:57:35.887098 Conductor terminated. Cleaning up. [container.docker.engine] caller_file=/Users/prem/.virtualenvs/bossa/src/ansible-container/container/docker/engine.py caller_func=await_conductor_command caller_line=348 command_rc=1 conductor_id=u'9197051f2d14a22a3ea52ebdf60ab6642d4b03ff5f379859238697323b878879' save_container=False 2017-06-14T13:57:36.889002 Conductor exited with status 1 [container.cli] caller_file=/Users/prem/.virtualenvs/bossa/src/ansible-container/container/cli.py caller_func=call caller_line=286

STEPS TO REPRODUCE Just followed the steps from here..Nothing changed.

http://docs.ansible.com/ansible-container/getting_started.html#dipping-a-toe-in-starting-from-scratch

EXPECTED RESULTS

The build run should work fine.

[chouseknecht]

@PREM1980

Thanks for your interest in Ansible Container, and for taking the time to share your feedback.

Not sure what you mean by "Just followed the steps from here" with a reference to the "Dipping a toe in" topic. All that does is initialize a project with no services defined.

You should head down that page a bit further to Starting from a working base setup.

I installed Docker for Mac Beta (that seems to be what you're using), and did the following with no issues:

$ mkdir test
$ cd test 
$ ansible-container init ansible.django-template

That initialized the project with a container.yml that actually defines some service. Then I ran the following to build the images for each service:

$ ansible-container --debug build

Here are the built images:

$ docker images 

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
test-nginx          20170615202652      7dea654789e8        54 seconds ago      262MB
test-nginx          latest              7dea654789e8        54 seconds ago      262MB
test-django         20170615202530      fdf1fa13b160        2 minutes ago       425MB
test-django         latest              fdf1fa13b160        2 minutes ago       425MB
test-conductor      latest              6eae3ebfde5d        4 minutes ago       523MB
centos              7                   3bee3060bfc8        10 days ago         193MB

With the images successfully built, I executed run as follows:

$ ansible-container --debug run

And the containers started as expected:

$ docker ps
CONTAINER ID        IMAGE                        COMMAND                  CREATED             STATUS              PORTS                     NAMES
25d260303210        test-django:20170615202530   "/usr/bin/dumb-ini..."   7 seconds ago       Up 5 seconds        0.0.0.0:32769->8080/tcp   test_django_1
cc3951fef965        postgres:9.6                 "docker-entrypoint..."   8 seconds ago       Up 6 seconds        5432/tcp                  test_postgres_1

The error message you're getting is coming from the Python docker module. It's complaining that it cannot connect to the Docker daemon. There must be something not quite right in your environment.

[j00bar]

The value of the DOCKER_HOST environment variable might be probative.

[alinbutura]

Hi, I am facing the exact same problem, trying to start a container using the docker_container module. I get a "Error connecting: Error while fetching server API version: hostname 'localhost' doesn't match u'${THIS_WOULD_BE_THE_INVENTORY_HOSTNAME}'". The play is:

- name: Deploying the RabbitMQ {{ cell_name }} ({{ rabbit_version }})
  docker_container:
    docker_url: https://{{ inventory_hostname }}:2376
    name: rabbit
    hostname: rabbit-{{ domain }}
    image: "{{ registry_host }}:{{ registry_port }}/rabbitmq:{{ rabbit_version }}"
    pull: "{{ pull }}"
    network_mode: bridge
    ports:
      - 5672
      - 15672
    log_options:
      max-size: 5m
      max-file: 5
    tls_verify: true
    tls_ca_cert: "{{ ansible_env.HOME }}/.docker/ca.pem"
    tls_client_cert: "{{ ansible_env.HOME }}/.docker/cert.pem"
    tls_client_key: "{{ ansible_env.HOME }}/.docker/key.pem"
  tags:
    - deploy

The value of the DOCKER_HOST env var is identical with the inventory_hostname.

[FlorianLiers]

As described in ansible/ansible#29471 in more detail, we fixed this problem in our setup by defining tls_hostname explicitly (or use tlsinstead of tls_verify). Maybe that helps here as well.

[Toonix]

I have the same problem since weeks...i can't use ansible to install my setup..it all started with the new docker version 17.xx

Error connection: Error while fetching server API version: Timout value connect was Timeout(connect=60, read=60,total=none)

is this here related to ansible-container? because I didn't set it up. I just have in my playbook docker_container: and it worked till docker got the new versions.

[alinbutura]

@FlorianLiers Indeed, by adding the tls_hostname it works. Thanks a lot!

[imlight]

What and Where do you mention this ?

tls_hostname

[karthik-arris]

@FlorianLiers Can you tell me where to set tls_hostname property ? I am stuck in the same issue.

[wandermyz]

@FlorianLiers Can you tell me where to set tls_hostname property ? I am stuck in the same issue.

[FlorianLiers]

@karthik-arris and @wandermyz: tls_hostname is a parameter for the docker_container module. You can find more details in the docs.