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Joshua Boniface 595cf1782c Switch DNS aggregator to PostgreSQL 
MariaDB+Galera was terribly unstable, with the cluster failing to
start or dying randomly, and generally seemed incredibly unsuitable
for an HA solution. This commit switches the DNS aggregator SQL
backend to PostgreSQL, implemented via Patroni HA.

It also manages the Patroni state, forcing the primary instance to
follow the PVC coordinator, such that the active DNS Aggregator
instance is always able to communicate read+write with the local
system.

This required some logic changes to how the DNS Aggregator worked,
specifically ensuring that database changes aren't attempted while
the instance isn't actively running - to be honest this was a bug
anyways that had just never been noticed.

Closes #34
 		2019-05-21 01:07:41 -04:00
client-api Add new endpoints 2019-05-10 23:26:59 -04:00
client-cli Update vm.py to allow API use 2019-05-20 22:15:28 -04:00
client-common Update vm.py to allow API use 2019-05-20 22:15:28 -04:00
debian Switch DNS aggregator to PostgreSQL 2019-05-21 01:07:41 -04:00
docs Remove obsolete about 2019-03-17 22:37:57 -04:00
node-daemon Switch DNS aggregator to PostgreSQL 2019-05-21 01:07:41 -04:00
.file-header Add file header template 2018-09-10 01:19:08 -04:00
.gitignore Ignore swap files 2018-06-18 21:26:36 -04:00
.gitlab-ci.yml Massive rejigger into single daemon 2018-10-14 02:40:54 -04:00
LICENSE Remove licence blurb for python_dhcp_server 2018-10-14 16:29:39 -04:00
README.md Minor tweaks to README appearance 2019-03-14 20:37:47 -04:00
build-deb.sh Massive rejigger into single daemon 2018-10-14 02:40:54 -04:00
mkdocs.yml Add documentation to project 2019-03-14 20:23:39 -04:00
pvc_logo.svg A few more tweaks 2018-06-06 02:43:34 -04:00

README.md

PVC - The Parallel Virtual Cluster suite

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PVC is a suite of Python 3 tools to manage virtualized clusters. It provides a fully-functional private cloud based on four key principles:

  1. Be Free Software Forever (or Bust)
  2. Be Opinionated and Efficient and Pick The Best Software
  3. Be Scalable and Redundant but Not Hyperscale
  4. Be Simple To Use, Configure, and Maintain

It is designed to be an administrator-friendly but extremely powerful and rich modern private cloud system, but without the feature bloat and complexity of tools like OpenStack. With PVC, an administrator can provision, manage, and update a cluster of dozens or more hypervisors running thousands of VMs using a simple CLI tool, HTTP API, or web interface. PVC is based entirely on Debian GNU/Linux and Free-and-Open-Source tools, providing the glue to bootstrap, provision and manage the cluster, then getting out of the administrators' way.

Your cloud, the best way; just add physical servers.

See the documentation here