ansible on aws

[kaja salaam]

<!---

Verify first that your issue/request is not already reported on GitHub.

Also test if the latest release, and master branch are affected too.

-->

##### ISSUE TYPE

<!--- Pick one below and delete the rest: -->

 - Bug Report

 

##### COMPONENT NAME

<!--- Name of the module/plugin/task/feature -->

/etc/ansible/ec2.py

##### ANSIBLE VERSION

<!--- Paste verbatim output from “ansible --version” between quotes below -->

```

ansible --version

ansible 2.3.0

  config file = /etc/ansible/ansible.cfg

  configured module search path = Default w/o overrides

```

##### CONFIGURATION

<!---

Mention any settings you have changed/added/removed in ansible.cfg

(or using the ANSIBLE_* environment variables).

-->remote_user = root

#remote_user = ubuntu

##### OS / ENVIRONMENT

<!---

Mention the OS you are running Ansible from, and the OS you are

managing, or say “N/A” for anything that is not platform-specific.

-->cat /etc/issue

Amazon Linux AMI release 2016.09

Kernel \r on an \m

##### SUMMARY

<!--- Explain the problem briefly -->

i am configuring ansible for our aws environment. brief about our setup, we have 30 + vpcs with 100 s of hosts and in daily operations , we use ssh proxy i.e from ssh (mac)--> to jumpbox --> bastion -- > destination server as a abc-user.

i installed ansible on one of ec2 and created the dynamic inventory file using /etc/ansible/ec2.py.

but i cant ssh to any node. 

ansible -m ping all

 [WARNING]: provided hosts list is empty, only localhost is available

 [WARNING]: No hosts matched, nothing to do

ls -l hosts

-rw-r--r-- 1 root root 1331374 Dec 17 00:32 hosts 

##### EXPECTED RESULTS

<!--- What did you expect to happen when running the steps above? -->

 ping all the servers in our account.

please let me know if any security group or pem keys file used for each vpc.