https://github.com/ncrmro/astrocyte

ZFS backed Ubuntu hosts provisioned by Ansible, with KVM and Docker.
https://github.com/ncrmro/astrocyte

ansible docker kvm kvm-hypervisor ubuntu ubuntu1804 zfs

Last synced: 23 days ago
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ZFS backed Ubuntu hosts provisioned by Ansible, with KVM and Docker.

• Host: GitHub
• URL: https://github.com/ncrmro/astrocyte
• Owner: ncrmro
• Created: 2018-06-22T03:43:34.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2022-07-06T20:13:30.000Z (over 2 years ago)
• Last Synced: 2023-03-04T09:18:37.530Z (over 1 year ago)
• Topics: ansible, docker, kvm, kvm-hypervisor, ubuntu, ubuntu1804, zfs
• Homepage:
• Size: 295 KB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 6
• Metadata Files:
  • Readme: README.md

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README

        
# Astrocyte

> ...\[are] cells in the brain and spinal cord. They perform many functions, 

including ...supporitng the cell that form the blood–brain barrier, 

provision of nutrients to the nervous tissue, maintenance of extracellular

ion balance, and a role in the repair and scarring process of the brain 

and spinal cord following traumatic injuries.

>

> -- Wikipedia

The main goal of Astrocyte in this context is to take baremetal hosts and

turn them into KVM hosts.

Then provision any KVM base guests with admin credentials, snapshot and 

then clone the base guest.

This allows us spin up new pre configured guests for experimentation etc.

The main prequsite of Astrocyte is that you have a body of storage available. [Ocean](https://gitlab.com/jtco-io/ops/ocean)

is a project that utilizes ZFS to provide networked attached storage (NAS). This allows us to have as many hosts virtual

or baremetal that can all write to a single storage pool.

All hosts should refer to this pool of data on a network file share. This means all virtual machine images are available

to any astrocyte host. The iso directory can be allowed to be written for from a [Transmission](https://transmissionbt.com/)

vm. Further work to get iSCI shares working are in order. 

This separation of concerns means we use standard OS Ubuntu with a minimal package set. Data backups and integreity are

handled by the Ocean hardware and repos respectivly. Althought Ocean does maintain the ability to have Astrocyte

deployed to it.

Furthermore Astrocyte provisions the baremetal hosts and their respective VM guests with various tools to aid in security

and monitoring. These typically include Prometheus [Node exporter](https://github.com/prometheus/node_exporter) and

Graylog [Sidecar](https://docs.graylog.org/en/3.0/pages/sidecar.html).

---

An additional goal is to provide cloud provider agnostic Virtual Machines

for things like off site backups, archives, kubernetes workers/ingress nodes.

For instance all AWS servers should be secure and waiting for any domain specific ansible plays once astrocyte is done with them.

# Install project dependencies

```bash

pipenv install

```

```bash

ansible-galaxy install ncrmro.kvm_host --force --roles-path=roles/galaxy

```

### Ansible Vault

Create a password file

```bash

mkdir ~/.ansible ; \

echo "mypassword" >> ~/.ansible/.vault_pass.txt && \

chmod 0444 ~/.ansible/.vault_pass.txt

```

## Initial commands

ansible -i hosts -m ping all

ansible -i hosts -m shell -a 'uptime' all

### Maintenance

ansible-playbook -i hosts init.yml

k