Installation¶
elasticluster is a Python program; Python version 2.6 is required to run it.
The easiest way to install elasticluster is using pip, this will install the latest stable release from the PyPI website. The following section: Installing from PyPI will explain you how to do it.
If you instead want to test the development version, go to the Installing from github section.
In both cases, it’s strongly suggested to install elasticluster in a python virtualenv, so that you can easily uninstall or upgrade elasticluster.
Installing from PyPI¶
It’s quite easy to install elasticluster using pip; the command below is all you need to install elasticluster on your system:
pip install elasticluster
If you want to run elasticluster from source you have to install Ansible first:
pip install ansible
python setup.py install
Installing from github¶
The source code of elasticluster is github, if you want to test the latest development version you can clone the github elasticluster repository.
You need the git command in order to be able to clone it, and we
suggest you to use python virtualenv in order to create a
controlled environment in which you can install elasticluster as
normal user.
Assuming you already have virtualenv installed on your machine,
you first need to create a virtualenv and install ansible, which is
needed by elasticluster:
virtualenv elasticluster
. elasticluster/bin/activate
pip install ansible
Then you have to download the software. We suggest you to download it within the created virtualenv:
cd elasticluster
git clone git://github.com/gc3-uzh-ch/elasticluster.git src
cd src
python setup.py install
Now the elasticluster should be available in your current
environment.
Notes on MacOSX installation¶
When installing elasticluster on MacOSX operating systems you may get some errors while running python setup.py install, because pip is not always able to automatically resolve the dependencies.
In these cases, you need to find the package that is failing and install it manually using pip.
For instance, if during the installation you get something like:
Running requests-2.4.3/setup.py -q bdist_egg --dist-dir /var/folders/tZ/tZ2B3RaeGVq7+ptdJIbdj++++TI/-Tmp-/easy_install-CrTFFL/requests-2.4.3/egg-dist-tmp-JZ2MOD
Adding requests 2.4.3 to easy-install.pth file
Traceback (most recent call last):
File "setup.py", line 109, in <module>
'elasticluster = elasticluster.main:main',
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/distutils/core.py", line 152, in setup
dist.run_commands()
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/distutils/dist.py", line 975, in run_commands
self.run_command(cmd)
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/distutils/dist.py", line 995, in run_command
cmd_obj.run()
File "/Users/michela/elasticluster/build/setuptools/setuptools/command/install.py", line 65, in run
File "/Users/michela/elasticluster/build/setuptools/setuptools/command/install.py", line 115, in do_egg_install
File "/Users/michela/elasticluster/build/setuptools/setuptools/command/easy_install.py", line 360, in run
File "/Users/michela/elasticluster/build/setuptools/setuptools/command/easy_install.py", line 576, in easy_install
File "/Users/michela/elasticluster/build/setuptools/setuptools/command/easy_install.py", line 627, in install_item
File "/Users/michela/elasticluster/build/setuptools/setuptools/command/easy_install.py", line 682, in process_distribution
File "/Users/michela/elasticluster/build/setuptools/pkg_resources.py", line 631, in resolve
dist = best[req.key] = env.best_match(req, ws, installer)
File "/Users/michela/elasticluster/build/setuptools/pkg_resources.py", line 871, in best_match
return self.obtain(req, installer)
File "/Users/michela/elasticluster/build/setuptools/pkg_resources.py", line 883, in obtain
return installer(requirement)
File "/Users/michela/elasticluster/build/setuptools/setuptools/command/easy_install.py", line 595, in easy_install
File "/Users/michela/elasticluster/build/setuptools/setuptools/command/easy_install.py", line 627, in install_item
File "/Users/michela/elasticluster/build/setuptools/setuptools/command/easy_install.py", line 659, in process_distribution
File "/Users/michela/elasticluster/build/setuptools/setuptools/command/easy_install.py", line 532, in install_egg_scripts
File "/Users/michela/elasticluster/build/setuptools/setuptools/command/easy_install.py", line 734, in install_wrapper_scripts
File "/private/var/folders/tZ/tZ2B3RaeGVq7+ptdJIbdj++++TI/-Tmp-/easy_install-qch0dG/python-keystoneclient-0.11.1/pbr-0.10.0-py2.6.egg/pbr/packaging.py", line 512, in override_get_script_args
AttributeError: 'NoneType' object has no attribute 'get_script_header'
you probably need to install pbr manually using:
pip install pbr
In some MacOSX version, even if the installation seems to succeed, you may get the following error the first time you run elasticluster:
Traceback (most recent call last):
File "/Users/michela/el2/bin/elasticluster", line 9, in <module>
load_entry_point('elasticluster==1.1-dev', 'console_scripts', 'elasticluster')()
File "/Users/michela/el2/build/setuptools/pkg_resources.py", line 356, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/Users/michela/el2/build/setuptools/pkg_resources.py", line 2431, in load_entry_point
return ep.load()
File "/Users/michela/el2/build/setuptools/pkg_resources.py", line 2147, in load
['__name__'])
File "build/bdist.macosx-10.6-universal/egg/elasticluster/__init__.py", line 33, in <module>
File "build/bdist.macosx-10.6-universal/egg/elasticluster/providers/gce.py", line 37, in <module>
File "build/bdist.macosx-10.6-universal/egg/apiclient/discovery.py", line 52, in <module>
File "build/bdist.macosx-10.6-universal/egg/apiclient/errors.py", line 27, in <module>
ImportError: No module named anyjson
In this case, the issue is caused by google-api-python-client, and you should: 1) uninstall it using pip uninstall 2) reinstall it using pip install 3) re-run elasticluster installation
pip uninstall google-api-python-client
[...]
pip install google-api-python-client
[...]
python setup.py install