add some lines

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sirkubax 2017-08-15 21:55:44 +02:00
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@ -38,6 +38,8 @@ Ansible uses ssh or paramiko as a transport layer. In a way you can imagine that
In the 'low-level' way you can use it to execute remote command in more controlled way (still using ssh).
On the other hand - in advanced scope - you can use python anible code as a library to your own python scrips! This is awesome! (if you know what you are doing). It is a bit like fabric then.
But ansible is way more! It provides an execution plans, an API, library, callbacks, not forget to mention - COMUNITY! and great support by developers!
## Ansible naming and basic concept
### Naming
@ -104,7 +106,30 @@ and other!
There are tasks (modules) that can be run via CLI
The execution plans of multiple tasks (with variables and logic) are called playbooks.
Fot parts of the code, that is reusable, a concept called `role` was introduced
For parts of the code, that is reusable, a concept called `role` was introduced
Role in a way is just a structured way to keep your set of tasks, your variables, handlers, default settings, and way more (meta, files, templates).
Rele allows to reuse the same parts of code in multiple plybooks (usually with some parametisation).
It is a great way to introduce `object oriented` management for your applications.
Role can be included in your playbook (executed in your playbook).
```
hosts: all
tasks:
- name: "ping all"
ping:
- name: "execute a shell command"
shell: "date; whoami; df -h;"
role:
- some_role
pre_tasks:
- name: some pre-task
shell: echo 'this task is the last, but would be executed before roles, and before tasks'
### ansible - variables
lookup's