vmpooler/README.md
Samuel Beaulieu d93ab332f7 Adding support for multiple vsphere providers
Refactoring the vmpooler.yaml format to support multiple providers.
The second level key under :providers: is a unique key name that
represents a provider that can be refered in the pool's parameter
called provider. The code is still backward compatible to support
the :vsphere: and :dummy: keys but in reality if you have more than
one vsphere configuration you would give them a different name. For
example :vsphere-pdx: and :vsphere-bfs: and the actual provider
class would be specified as a parameter called 'provider_class'.
See tests and examples for more information.
2017-06-09 21:44:03 +01:00

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![vmpooler](https://raw.github.com/sschneid/vmpooler/master/lib/vmpooler/public/img/logo.gif)
# vmpooler
vmpooler provides configurable 'pools' of instantly-available (running) virtual machines.
## Usage
At [Puppet, Inc.](http://puppet.com) we run acceptance tests on thousands of disposable VMs every day. Dynamic cloning of VM templates initially worked fine for this, but added several seconds to each test run and was unable to account for failed clone tasks. By pushing these operations to a backend service, we were able to both speed up tests and eliminate test failures due to underlying infrastructure failures.
## Installation
### Prerequisites
vmpooler requires the following Ruby gems be installed:
- [json](http://rubygems.org/gems/json)
- [rbvmomi](http://rubygems.org/gems/rbvmomi)
- [redis](http://rubygems.org/gems/redis)
- [sinatra](http://rubygems.org/gems/sinatra)
It also requires that a [Redis](http://redis.io/) server exists somewhere, as this is the datastore used for vmpooler's inventory and queueing services.
### Configuration
The following YAML configuration sets up two pools, `debian-7-i386` and `debian-7-x86_64`, which contain 5 running VMs each:
```
---
:providers:
:vsphere:
server: 'vsphere.company.com'
username: 'vmpooler'
password: 'swimsw1msw!m'
:redis:
server: 'redis.company.com'
:config:
logfile: '/var/log/vmpooler.log'
:pools:
- name: 'debian-7-i386'
template: 'Templates/debian-7-i386'
folder: 'Pooled VMs/debian-7-i386'
pool: 'Pooled VMs/debian-7-i386'
datastore: 'vmstorage'
size: 5
provider: vsphere
- name: 'debian-7-x86_64'
template: 'Templates/debian-7-x86_64'
folder: 'Pooled VMs/debian-7-x86_64'
pool: 'Pooled VMs/debian-7-x86_64'
datastore: 'vmstorage'
size: 5
provider: vsphere
```
See the provided YAML configuration example, [vmpooler.yaml.example](vmpooler.yaml.example), for additional configuration options and parameters or for supporting multiple providers.
### Running via Docker
A [Dockerfile](Dockerfile) is included in this repository to allow running vmpooler inside a Docker container. A `vmpooler.yaml` configuration file can be embedded in the current working directory, or specified inline in a `VMPOOLER_CONFIG` environment variable. To build and run:
```
docker build -t vmpooler . && docker run -e VMPOOLER_CONFIG -p 80:4567 -it vmpooler
```
## API and Dashboard
vmpooler provides an API and web front-end (dashboard) on port `:4567`. See the provided YAML configuration example, [vmpooler.yaml.example](vmpooler.yaml.example), to specify an alternative port to listen on.
### API
vmpooler provides a REST API for VM management. See the [API documentation](API.md) for more information.
### Dashboard
A dashboard is provided to offer real-time statistics and historical graphs. It looks like this:
![dashboard](https://raw.github.com/sschneid/vmpooler/gh-pages/img/screenshots/dashboard.png)
[Graphite](http://graphite.wikidot.com/) is required for historical data retrieval. See the provided YAML configuration example, [vmpooler.yaml.example](vmpooler.yaml.example), for details.
## Command-line Utility
- The [vmpooler_client.py](https://github.com/puppetlabs/vmpooler-client) CLI utility provides easy access to the vmpooler service. The tool is cross-platform and written in Python.
- [vmfloaty](https://github.com/briancain/vmfloaty) is a ruby based CLI tool and scripting library written in ruby.
## Vagrant plugin
- [vagrant-vmpooler](https://github.com/briancain/vagrant-vmpooler) Use Vagrant to create and manage your vmpooler instances.
## Build status
[![Build Status](https://travis-ci.org/puppetlabs/vmpooler.png?branch=master)](https://travis-ci.org/puppetlabs/vmpooler)
## License
vmpooler is distributed under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.html). See the [LICENSE](LICENSE) file for more details.