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# PVC Ansible
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A set of Ansible roles to set up a PVC node host. Tested on Ansible 2.2 through 2.6; it is
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not guaranteed to work properly on older or newer versions.
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## Roles
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This repository contains two roles:
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#### base
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This role provides a standardized and configured base system for PVC. This role expects that
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the system was installed via the PVC installer ISO, which results in a Debian Buster system.
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#### pvc
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This role configures the various subsystems required by PVC, including Ceph, Libvirt, Zookeeper,
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FRR, and Patroni, as well as the main PVC components themselves.
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## Variables
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A default example set of configuration variables can be found in `group_vars/default/`.
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A full explanation of all variables can be found in [the manual](https://parallelvirtualcluster.readthedocs.io/en/latest/manuals/ansible/).
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## Using
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*NOTE:* These roles expect a Debian 10.X (Buster) system specifically. This is currently the
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only operating environment supported for PVC.
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*NOTE:* All non-`default` directories under `group_vars/` and `files/`, and the `hosts` file,
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are ignored by this Git repository. It is advisable to manage these files securely
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in a separate repository and use symlinks to place them in the expected locations in
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this repository. Note that the `files/` data is created during cluster bootstrap.
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For full details, please see the general [PVC install documentation](https://parallelvirtualcluster.readthedocs.io/en/latest/installing/).
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0. Deploy a set of 3 or 5 initial PVC nodes using the PVC install ISO.
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0. Create a new cluster group in the `hosts` file, using `hosts.default` as an example. For
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the initial bootstrap run, it is recommended to only include the initial coordinators
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to ensure a smooth bootstrapping.
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0. Create a set of vars in `group_vars`, using `group_vars/default` as an example. Ensure
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that all desired coordinators are configured with the `is_coordinator: yes` flag.
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0. Run the `pvc.yml` playbook against the servers. If this is the very first run for a given
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cluster, use the `-e bootstrap=yes` variable to ensure the Ceph, Patroni, and PVC clusters
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are initialized.
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## License
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Copyright (C) 2018-2019 Joshua M. Boniface <joshua@boniface.me>
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This repository, and all contained files, is free software: you can
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redistribute it and/or modify it under the terms of the GNU General
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Public License as published by the Free Software Foundation, either
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version 3 of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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