Ansible Operations

Internal

• Ansible

Command Line Options

-b

"Become" another user when running the command.

-m

Defines the module to run.

-a

Pass arguments to the module.

Ping all Hosts from a Group

This will also list the hosts from that group.

ansible all -m ping

Execute a Shell Command on all Hosts in Some Groups

ansible masters,nodes -m shell -a "systemctl status docker | grep Active"

Copy Files

ansible <my-servers> -m copy -a "src=/root/ipa-ca.crt dest=/etc/origin/master"

ansible-playbook

ansible-playbook

Provide In-Line Prompt Confirmation

ansible-playbook ... -e reset_confirmation=yes

where "reset_confirmation" is defined in playbook:

- hosts: etcd:k8s-cluster:calico-rr

  pre_tasks:
    - name: check confirmation
      fail:
        msg: "Reset confirmation failed"
      when: reset_confirmation != "yes"

SSH Configuration

... --ask-pass --ssh-extra-args='-o "PubkeyAuthentication=no"' ...

SSH Host Key Authenticity Checking

ansible.cfg

Troubleshooting

https://docs.ansible.com/ansible/latest/user_guide/playbooks_debugger.html

Run ansible-playbook with -vvvvv