eutester version 0.0.1

Intro to Eutester

Getting Setup

Writing Your First Testcase

eutester is an attempt to leverage existing test code to make test writing faster and standardized.

Main Classes

eutester contains the framework pieces like parsing config/creds, setting up connections and providing test primatives
eucaops uses the framework provided by eutester to provide validated higher order operations on those cloud connections

Example test cases written with this library can be found in the testcases/unstable directory of the source tree

Design

Eutester is designed to allow a user to quickly generate automated tests for testing a Eucalyptus or Amazon cloud. In the case of testing a private cloud a configuration file can be used to create cases that require root access to the machines. The config file describes a few things about the clouds configuration including the bare metal machine configuration and IPs.

The eucaops class can be imported in order to use pre-defined routines which validate common operations on the cloud:

from eucaops import Eucaops

Constructor

The basic constructor can be used for a few different connections:

1. Instance - Only SSH connection
   Purpose - connect to instances in the cloud
   Required arguments: private key path and hostname

    instance = Eutester( hostname=instance.ip_address, keypath="my_key.pem")
    instance.sys("mount") # check mount points on instance and return the output as a list
   

2. Private cloud with root access - CLC SSH, Cloud, and Walrus connections
   Purpose - connect to and manipulate Eucalyptus components using boto and command line. Recommended to use Eucaops.
   Required arguments: root password, config file with topology information
   Optional arguments: credential path so that new credentials are not created

    private_cloud = Eucaops( password="my_root_pass",  config_file="cloud.conf")
    private_cloud.sys("euca-describe-availability-zones") ### use local credentials to determine viable availability-zones
   

3. Public cloud - local SSH, EC2 and S3 connections
   Purpose - can be used to wrap euca2ools commands installed locally on the tester machine or with Eucaops
   Required arguments: root password, config file with topology information

    public_cloud = Eucaops(credpath="~/.eucarc")    
    public_cloud.run_instance(image) ## run an m1.small instance using image
   

Config file

The configuration file for (2) private cloud mode has the following structure:

clc.mydomain.com CENTOS 5.7 64 REPO [CC00 CLC SC00 WS]    
nc1.mydomain.com VMWARE ESX-4.0 64 REPO [NC00]

Columns

IP or hostname of machine  
Distro installed on machine  
Distro version on machine  
Distro base architecture
System built from packages (REPO) or source (BZR), packages assumes path to eucalyptus is /, bzr assumes path to eucalyptus is /opt/eucalyptus
List of components installed on this machine encapsulated in brackets []

These components can be:

CLC - Cloud Controller   
WS - Walrus   
SC00 - Storage controller for cluster 00   
CC00 - Cluster controller for cluster 00    
NC00 - A node controller in cluster 00