ansible 2.3.0 - No authentication methods available - ansible

Question

I have installed ansible on ubuntu server using:
pip install git+git://github.com/ansible/ansible.git#devel
So my curent version is:
ansible 2.3.0
config file = /etc/ansible/ansible.cfg
configured module search path = Default w/o overrides
In configuration file I have:
# uncomment this to disable SSH key host checking
host_key_checking = False
And when I run ansible I get:
Using /etc/ansible/ansible.cfg as config file
SSH password:
PLAYBOOK: test1.yml ************************************************************
1 plays in test1.yml
PLAY [testowy playbook] ********************************************************
TASK [show version] ************************************************************
task path: /home/mszczesniak/test1.yml:8
Using module file /usr/local/lib/python2.7/dist-packages/ansible/modules/core/network/ios/ios_command.py
<10.27.200.80> ESTABLISH LOCAL CONNECTION FOR USER: root
<10.27.200.80> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo $HOME/.ansible/tmp/ansible-tmp-1477054111.24-214066525349846 `" && echo ansible-tmp-1477054111.24-214066525349846="` echo $HOME/.ansible/tmp/ansible-tmp-1477054111.24-214066525349846 `" ) && sleep 0'
<10.27.200.80> PUT /tmp/tmpNfII7q TO /home/mszczesniak/.ansible/tmp/ansible-tmp-1477054111.24-214066525349846/ios_command.py
<10.27.200.80> EXEC /bin/sh -c 'chmod u+x /home/mszczesniak/.ansible/tmp/ansible-tmp-1477054111.24-214066525349846/ /home/mszczesniak/.ansible/tmp/ansible-tmp-1477054111.24-214066525349846/ios_command.py && sleep 0'
<10.27.200.80> EXEC /bin/sh -c '/usr/bin/python /home/mszczesniak/.ansible/tmp/ansible-tmp-1477054111.24-214066525349846/ios_command.py; rm -rf "/home/mszczesniak/.ansible/tmp/ansible-tmp-1477054111.24-214066525349846/" > /dev/null 2>&1 && sleep 0'
An exception occurred during task execution. The full traceback is:
Traceback (most recent call last):
File "/tmp/ansible_zKWzh_/ansible_module_ios_command.py", line 237, in <module>
main()
File "/tmp/ansible_zKWzh_/ansible_module_ios_command.py", line 200, in main
runner.add_command(**cmd)
File "/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/netcli.py", line 147, in add_command
File "/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/network.py", line 116, in cli
File "/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/network.py", line 147, in connect
File "/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/ios.py", line 180, in connect
File "/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/shell.py", line 230, in connect
File "/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/shell.py", line 100, in open
File "/usr/lib/python2.7/dist-packages/paramiko/client.py", line 367, in connect
look_for_keys, gss_auth, gss_kex, gss_deleg_creds, gss_host)
File "/usr/lib/python2.7/dist-packages/paramiko/client.py", line 585, in _auth
raise SSHException('No authentication methods available')
paramiko.ssh_exception.SSHException: No authentication methods available
fatal: [10.27.200.80]: FAILED! => {
"changed": false,
"failed": true,
"invocation": {
"module_name": "ios_command"
},
"module_stderr": "Traceback (most recent call last):\n File \"/tmp/ansible_zKWzh_/ansible_module_ios_command.py\", line 237, in <module>\n main()\n File \"/tmp/ansible_zKWzh_/ansible_module_ios_command.py\", line 200, in main\n runner.add_command(**cmd)\n File \"/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/netcli.py\", line 147, in add_command\n File \"/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/network.py\", line 116, in cli\n File \"/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/network.py\", line 147, in connect\n File \"/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/ios.py\", line 180, in connect\n File \"/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/shell.py\", line 230, in connect\n File \"/tmp/ansible_zKWzh_/ansible_modlib.zip/ansible/module_utils/shell.py\", line 100, in open\n File \"/usr/lib/python2.7/dist-packages/paramiko/client.py\", line 367, in connect\n look_for_keys, gss_auth, gss_kex, gss_deleg_creds, gss_host)\n File \"/usr/lib/python2.7/dist-packages/paramiko/client.py\", line 585, in _auth\n raise SSHException('No authentication methods available')\nparamiko.ssh_exception.SSHException: No authentication methods available\n",
"module_stdout": "",
"msg": "MODULE FAILURE"
}
to retry, use: --limit #/home/mszczesniak/test1.retry
PLAY RECAP *********************************************************************
10.27.200.80 : ok=0 changed=0 unreachable=0 failed=1
What is wrong? It looks like option in a config file is not taken or maby there is problem in dev 2.3.0 version?

Answer 1

This exception is raised when you do not provide any means for authentication. The Paramiko SSH Client doesn't know what method to use and hence raises SSHException('No authentication methods available').
You should provide either a password or a private key (or both), for the SSHClient to work. Else, it's just clueless.
A little extra:
If you look at the code, you can see that this exception is raised when none of the possible auth methods have been tried.

Answer 2

if we are adding the below parameters
ansible_user=rakesh
ansible_password=xxxxx
it is giving "unable to set terminal parameters" error