In Ansible, we can use become to make use to Linux system’s sudo feature. This makes one user to execute commands on system as another user for the moment of command execution. There are various ways to tell Ansible about the privileged user, password and other related options. These ways...
For Ansible to execute, it needs an inventory (what are the managed nodes I am trying to automate?) and credentials (how do I login and connect to those managed nodes?). Community Ansible is decentralized—meaning it relies on your existing OS credentials to control access to remote machines...
Ansible itself is an agentless, open-source configuration management tool. You define a configuration inYAMLand use the Ansible command line tool to execute it against a set of remote hosts. In an enterprise configuration, you can set up the free AWX management platform or pay for the Re...
In the prerequisite tutorials, you learned how to run the core Ansible tool using theansiblecommand in a terminal. You also learned how to collect tasks into playbooks and run them using theansible-playbookcommand. The next step in the progression from running single commands, to tasks...
When you want to experiment with Ansible, you will need to setup a test environment. In this blog, you will create a test environment containing one controller and two target machines. This will give you a good setup for experimenting with Ansible withou
-hosts:cloudgather_facts:falsebecome:truevars:ansible_become_user:admintasks:-name:This task uses admin as the become user.dnf:name:some-servicestate:latest-block:-name:This task uses service-admin as the become user.# a task to configure the new service-name:This task also uses service-adm...
The first column is where you set the inventory name of a host, “node01” in the first line of the example, how Ansible will refer to the host. This value is used to configure Tinc connections, and to generate/etc/hostsentries. Do not use hyphens here, as Tinc does not s...
$ ansible-playbook playbooks/print_global_fact.yaml As you can see, all the hosts in my inventory file can access the global factweb_url. You can also add global facts in a separate file. This way, you can keep the inventory file clean. Let’s see how to do it. ...
Generate RSA keys on the Ansible management host: $ ssh-keygen -t rsa Do not specify a password to protect the SSH key. Now you need to copy the key file to each node using ssh-copy-id: $ ssh-copy-id sysops@192.168.14.144
Right from the start, Ansible boasts that it is simple, agentless, and that anyone can learn and be productive with it. Ansible makes it easy to do things li...