95 lines
2.7 KiB
Markdown
95 lines
2.7 KiB
Markdown
# Quick Start Guide
|
||
|
||
This documentation will show you the preparation steps necessary to ensure that you environment is ready to deploy cluster(s).
|
||
|
||
## Prerequisites
|
||
|
||
### Recommended readings
|
||
|
||
It’s beneficial to learn basics of both [Ansible](https://docs.ansible.com/) and [Docker](https://docs.docker.com/)(for docker deployments) before running Hashistack Ansible.
|
||
|
||
### Operating
|
||
|
||
The only supported operating systems currently are:
|
||
- Debian
|
||
- 11, Bullseye
|
||
- 12, Bookworm
|
||
- Ubuntu
|
||
- 20.04, Focal
|
||
- 22.04, Jammy
|
||
|
||
Other Debian-based distributions might work, but **are not tested**, and may break at any given update.
|
||
|
||
### Target Hosts
|
||
|
||
Target hosts are the hosts you are planning on deploying cluster(s) to.
|
||
|
||
These hosts must satisfy the following minimum requirements:
|
||
- Be reachable via ssh by the deployment node (the machine running the ansible playbooks), with a user that has the ability to escalate privileges.
|
||
- Be able to comunicate with each other, according to your cluster topology (vault hosts must all be able to reach each other, etc...)
|
||
- Be synced to a common time
|
||
- Have less than 10ms of latency to reach each other (raft consensus algorithm requirement)
|
||
- Be using systemd as their init system.
|
||
|
||
Ideally, hosts are recommended to satisfy the following recommendations:
|
||
- Have 2 network interfaces:
|
||
- One that is public facing for client-to-server traffic
|
||
- One that is not public facing for server-to-server and deployment-to-server communications
|
||
- Have a minimum of 8GB of memory (less will work, but the larger the scale, the higher the RAM requirements will be)
|
||
- Have a minimum of 40GB of free disk space
|
||
|
||
## Prepare the deployment host
|
||
|
||
1. Install the virtual environment dependencies.
|
||
|
||
```bash
|
||
sudo apt update
|
||
sudo apt install git python3-dev libffi-dev gcc libssl-dev python3-venv
|
||
```
|
||
|
||
2. Create a python virtual environment and activate it.
|
||
|
||
```bash
|
||
python3 -m venv /path/to/venv
|
||
source /path/to/venv/bin/activate
|
||
```
|
||
|
||
3. Ensure the latest version of pip is installed
|
||
|
||
```bash
|
||
pip install -U pip
|
||
```
|
||
|
||
4. Install [Ansible](http://www.ansible.com/). Hashistack Ansible requires at least Ansible **7**(or ansible-core **2.15**)
|
||
|
||
```bash
|
||
pip install 'ansible-core>=2.15'
|
||
```
|
||
|
||
5. Create the directory structure. This is not required but **heavily** recommended.
|
||
|
||
```bash
|
||
mkdir -p etc/hashistack collections inventory roles
|
||
touch ansible.cfg
|
||
```
|
||
|
||
Your directory structure should look like this
|
||
|
||
```bash
|
||
.
|
||
├── ansible.cfg
|
||
├── collections
|
||
├── etc
|
||
│ └── hashistack
|
||
├── inventory
|
||
└── roles
|
||
```
|
||
|
||
6. Edit the `ansible.cfg` file with the minimum requirements.
|
||
|
||
```bash
|
||
[defaults]
|
||
roles_path = ./roles/
|
||
collections_path = ./collections/
|
||
inventory = ./inventory/
|
||
``` |