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dynamic_duo

Repository with ansible configuration for ansible and pgbackrest

The playbooks are written using the ansible version 2.5.

Each repository's branch covers a specific step for the installation.

The master branch is the sum of the other branches.

In the inventory directory there is the file hosts.example which should be used as template for the working hosts file.

In order to make the playbook work you should copy hosts.example into hosts and edit the file for your installation.

The setup playbook should be executed specifying the vault password where the postgres super user password is encrypted.

e.g.

ansible-playbook --vault-id default@prompt --extra-vars "no_dns=True" setup.yml

Each branch have a special role rollback which can rollback the changes applied by the previous roles, useful to restore the machines to a previous state.

As this is potentially destructive role by default all the tasks are skipped.

The actions from the roles can be rolled back individually passing the appropriate variable set to true or entirely using the wildcard variable rbk_all.

#rolls back the apt configuration leaving the hosts untouched
ansible-playbook rollback.yml --extra-vars="rbk_apt=True"
  • rbk_hosts=True removes the hosts configuration
  • rbk_apt=True removes the apt configuration
  • rbk_ssh=True removes the ssh configuration
  • rbk_pgsql=True removes the postgresql clusters and configuration
  • rbk_all=True removes all the changes applied

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