How to reverse ansible role installation ? (how to uninstall a role)

user_174983 0
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I've installed a role on my server. now I want to remove it. What is the right command to do this ?

for example:

  roles:
    - role: lean_delivery.java
    - role: lean_delivery.solr_standalone

how can I remove the lean_delivery.java role ?

ansible
1 Answers

What you need to understand here is, that ansible is not a package manager. You are not "installing" a role on a server that you can remove again, like you install and remove packages using apt, for example.
When using ansible, you define a state in your configuration (roles, playbooks etc.) and ansible takes care that the machine will have that state later. It does not record the changes it did so it can undo them later. (That is just not possible, if you include custom scripts, for example).
So to revert changes, you need to define the state that your machine had before you ran the playbook so ansible can create that state.
That can be quite easy, as for lot of modules, you can specify state: absent (e.g. files, installed packages) that will remove things that were added. But it can be very hard, as well, if you have custom scripts that ran on the original role, you need to write a script that reverts all changes the original script made on the system.
But what you need to undo depends on what you are doing in those roles.

user_36836390
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