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which ansible
whence -p ansible
whereis ansible
type ansible
whatis ansible
rpm -qa | grep ansible

~/.local/bin/ansible
/home/cmihai/.local/bin/ansible
ansible: /usr/bin/ansible /etc/ansible /usr/share/ansible /home/cmihai/.local/bin/ansible /usr/share/man/man1/ansible.1.gz
ansible is /home/cmihai/.local/bin/ansible
ansible (1) - Define and run a single task 'playbook' against a set of hosts
ansible-2.8.5-2.el8.noarch

ansible --version
/usr/bin/ansible --verion

ansible 2.9.2
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/home/cmihai/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /home/cmihai/.local/lib/python3.6/site-packages/ansible
  executable location = /home/cmihai/.local/bin/ansible
  python version = 3.6.8 (default, Oct  7 2019, 17:58:22) [GCC 8.2.1 20180905 (Red Hat 8.2.1-3)]

ansible 2.8.5
  config file = /etc/ansible/ansible.cfg
  configured module search path = ['/home/cmihai/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3.6/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 3.6.8 (default, Oct  7 2019, 17:58:22) [GCC 8.2.1 20180905 (Red Hat 8.2.1-3)]

ansible-doc -l | wc

3681

ansible-doc -l | grep archive

archive   Creates a compressed archive of one or more files or trees
unarchive Unpacks an archive after (optionally) copying it from the local machine
win_unzip Unzips compressed files and archives on the Windows node

ansible-doc -s apt_repo

- name: Manage APT repositories via apt-repo
  apt_repo:
      remove_others:         # Remove other then added repositories Used if `state=present'
      repo:                  # (required) Name of the repository to add or remove.
      state:                 # Indicates the desired repository state.
      update:                # Update the package database after changing repositories.

ansible-doc package

> YUM    (/home/cmihai/.local/lib/python3.6/site-packages/ansible/modules/packaging/os/yum.py)

        Installs, upgrade, downgrades, removes, and lists packages and groups with the `yum' package manager. This module only works on Python 2. If you
        require Python 3 support see the [dnf] module.

  * This module is maintained by The Ansible Core Team
  * note: This module has a corresponding action plugin.

- name: install the latest version of Apache
  yum:
    name: httpd
    state: latest

- name: ensure a list of packages installed
  yum:
    name: ""
  vars:
    packages:
    - httpd
    - httpd-tools

- name: remove the Apache package
  yum:
    name: httpd
    state: absent

- name: install the latest version of Apache from the testing repo
  yum:
    name: httpd
    enablerepo: testing
    state: present

- name: install one specific version of Apache
  yum:
    name: httpd-2.2.29-1.4.amzn1
    state: present

- name: upgrade all packages
  yum:
    name: '*'
    state: latest

- name: upgrade all packages, excluding kernel & foo related packages
  yum:
    name: '*'
    state: latest
    exclude: kernel*,foo*

- name: install the nginx rpm from a remote repo
  yum:
    name: http://nginx.org/packages/centos/6/noarch/RPMS/nginx-release-centos-6-0.el6.ngx.noarch.rpm
    state: present

- name: install nginx rpm from a local file
  yum:
    name: /usr/local/src/nginx-release-centos-6-0.el6.ngx.noarch.rpm
    state: present

- name: install the 'Development tools' package group
  yum:
    name: "@Development tools"
    state: present

- name: install the 'Gnome desktop' environment group
  yum:
    name: "@^gnome-desktop-environment"
    state: present

- name: List ansible packages and register result to print with debug later.
  yum:
    list: ansible
  register: result

- name: Install package with multiple repos enabled
  yum:
    name: sos
    enablerepo: "epel,ol7_latest"

- name: Install package with multiple repos disabled
  yum:
    name: sos
    disablerepo: "epel,ol7_latest"

- name: Install a list of packages
  yum:
    name:
      - nginx
      - postgresql
      - postgresql-server
    state: present

- name: Download the nginx package but do not install it
  yum:
    name:
      - nginx
    state: latest
    download_only: true

ansible-doc --type=callback -l
ansible-doc --type=callback timer

~/.local/bin/ansible

ansible-doc --type=callback timer
> TIMER    (/home/cmihai/.local/lib/python3.6/site-packages/ansible/plugins/callback/timer.py)

        This callback just adds total play duration to the play stats.

  * This module is maintained by The Ansible Community
REQUIREMENTS:  whitelist in configuration

CALLBACK_TYPE: aggregate
        METADATA:
          status:
          - preview
          supported_by: community

[mymachine]
localhost

ansible-inventory -i inventory.ini --graph
ansible-inventory -i inventory.ini --list --yaml

@all:
  |--@mymachine:
  |  |--localhost
  |--@ungrouped:

all:
  children:
    mymachine:
      hosts:
        localhost: {}
    ungrouped: {}