ansible -i ~/inventory all - ping

FROM python:2

COPY .ansible.cfg /root

RUN apt-get update && apt-get install sshpass

RUN pip install ansible

docker build -t ansible .
docker run -it -v $HOME/inventory:/inventory ansible /bin/bash

root@ba6af0496a84:/# ansible -vvv -i inventory all -m ping
64.137.176.75 | UNREACHABLE! => {
    "changed": false,
    "msg": "Failed to connect to the host via ssh.",
    "unreachable": true
}
root@ba6af0496a84:/# ansible -vvv -i inventory all -m ping
Using /root/.ansible.cfg as config file
<64.137.176.75> ESTABLISH SSH CONNECTION FOR USER: root
<64.137.176.75> SSH: EXEC sshpass -d12 ssh -C -q -o ControlMaster=auto -o ControlPersist=60s -o StrictHostKeyChecking=no -o User=root -o ConnectTimeout=10 -o ControlPath=/root/.ansible/cp/ansible-ssh-%h-%p-%r 64.137.176.75 '/bin/sh -c '"'"'( umask 77 && mkdir -p "` echo $HOME/.ansible/tmp/ansible-tmp-1472388982.6-16651511220249 `" && echo ansible-tmp-1472388982.6-16651511220249="` echo $HOME/.ansible/tmp/ansible-tmp-1472388982.6-16651511220249 `" ) && sleep 0'"'"''
64.137.176.75 | UNREACHABLE! => {
    "changed": false,
    "msg": "Failed to connect to the host via ssh.",
    "unreachable": true
}

ansible_connection=ssh
ansible_user=root
ansible_ssh_pass=xxxxx