Ansible Failed to Run because of SSH

Hey Guys I am trying to run that playbook but for some reason it’s not running

root@ip-172-16-20-180:/var/
lib/jenkins/jobs/build-cs-utils/workspace/playbooks# ansible-playbook -i inventory/prod deploy_system_status.yml
Enter the version you want to deploy:

PLAY [Deploy to status servers] **********************************************

GATHERING FACTS ***************************************************************
fatal: [prodstatus0] => SSH Error: Permission denied (publickey).
while connecting to 172.16.21.129:22
It is sometimes useful to re-run the command using -vvvv, which prints SSH debug output to help diagnose the issue.

TASK: [nodejs_app | Put upstart script in place] ******************************
FATAL: no hosts matched or all hosts have already failed – aborting

PLAY RECAP ********************************************************************
to retry, use: --limit @/root/deploy_system_status.retry

prodstatus0 : ok=0 changed=0 unreachable=1 failed=0

Here is also the command with -vvvv

root@ip-172-16-20-180:/var/lib/jenkins/jobs/build-cs-utils/workspace/playbooks# ansible-playbook -i inventory/prod deploy_system_status.yml -vvvv
Enter the version you want to deploy:

PLAY [Deploy to status servers] **********************************************

GATHERING FACTS ***************************************************************
<172.16.21.129> ESTABLISH CONNECTION FOR USER: ansible
<172.16.21.129> REMOTE_MODULE setup
<172.16.21.129> EXEC ssh -C -tt -vvv -o ControlMaster=auto -o ControlPersist=60s -o ControlPath=“/root/.ansible/cp/ansible-ssh-%h-%p-%r” -o IdentityFile=“/root/credentials/ansible_id_rsa” -o KbdInteractiveAuthentication=no -o PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey -o PasswordAuthentication=no -o User=ansible -o ConnectTimeout=10 172.16.21.129 /bin/sh -c ‘mkdir -p $HOME/.ansible/tmp/ansible-tmp-1444673619.82-165283189134845 && echo $HOME/.ansible/tmp/ansible-tmp-1444673619.82-165283189134845’
fatal: [prodstatus0] => SSH Error: Permission denied (publickey).
while connecting to 172.16.21.129:22
It is sometimes useful to re-run the command using -vvvv, which prints SSH debug output to help diagnose the issue.

TASK: [nodejs_app | Put upstart script in place] ******************************
FATAL: no hosts matched or all hosts have already failed – aborting

PLAY RECAP ********************************************************************
to retry, use: --limit @/root/deploy_system_status.retry

prodstatus0 : ok=0 changed=0 unreachable=1 failed=0

See http://docs.ansible.com/ansible/intro_getting_started.html
"Ansible by default assumes you are using SSH keys. SSH keys are encouraged but password authentication can also be used where needed by supplying the option --ask-pass"

Still not working

Still not working

      You might want to elaborate.