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# PVC Ansible
A set of Ansible roles to set up a PVC node host.
A set of Ansible roles to set up a PVC node host. Tested on Ansible 2.2 through 2.6; it is
not guaranteed to work properly on older or newer versions.
## Roles
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This role provides a standardized and configured base system for PVC. This role expects that
the system was installed via the PVC installer ISO, which results in a Debian Buster system.
#### pvc
This role configures the various subsystems required by PVC, including Ceph, Libvirt, Zookeeper,
FRR, and Patroni, as well as the main PVC components themselves.
## Variables
A default example set of configuration variables can be found in `group_vars/default/vars.yml
A default example set of configuration variables can be found in `group_vars/default/`.
A full explanation of all variables can be found in [the manual](https://parallelvirtualcluster.readthedocs.io/en/latest/manuals/ansible/).
## Using
*NOTE:* These roles expect a Debian 10.X (Buster) system specifically. This is currently the
only operating environment supported for PVC.
*NOTE:* All non-`default` directories under `group_vars/` and `files/`, and the `hosts` file,
are ignored by this Git repository. It is advisable to manage these files securely
in a separate repository and use symlinks to place them in the expected locations in
this repository. Note that the `files/` data is created during cluster bootstrap.
For full details, please see the general [PVC install documentation](https://parallelvirtualcluster.readthedocs.io/en/latest/installing/).
0. Deploy a set of 3 or 5 initial PVC nodes using the PVC install ISO.
0. Configure the networking on the hosts via `ssh deploy@<host>` and editing the
`/etc/network/interfaces` file to match your network layout, including and bonding and
vlans. Remember to remove the static or DHCP configuration from the primary (`upstream`,
usually) network interface that was set by the installer to allow bootstrapping. Use the
`manual` mode for all interfaces that PVC will manage. Bring up all configured interfaces
via `ifup`.
0. Create a new cluster group in the `hosts` file, using `hosts.default` as an example. For
the initial bootstrap run, it is recommended to only include the initial coordinators
to ensure a smooth bootstrapping.