Category: RackSpace

Install Nova Client With Cloud Networks Support

September 24, 2013

Nova is the the cloud management command line utility for RackSpace and other OpenStack clouds. Special setup is required to use Nova with RackSpace Cloud Networks. Here’s the docs from RackSpace: http://docs.rackspace.com/servers/api/v2/cn-gettingstarted/content/ch_overview.html http://docs.rackspace.com/servers/api/v2/cn-devguide/content/index.html Here are the steps: 1. Install python-pip package

apt-get -y install python-pip

1	apt-get -y install python-pip

For RedHat/CentOS we need to install EPEL repository if it’s not already installed:

wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
rpm -Uvh epel-release-6*.rpm

1 2	wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm rpm -Uvh epel-release-6*.rpm

Now we can install python-pip:

yum install python-pip

1	yum install python-pip

2. Install rackspace version of nova client

python-pip install rackspace-novaclient

1	python-pip install rackspace-novaclient

If “python-pip” does not work then try:

pip install rackspace-novaclient

1	pip install rackspace-novaclient

3. Reinstall nova client from latest github souce:

cd /root
git clone git://github.com/openstack/python-novaclient.git
cd python-novaclient
python setup.py install

cd /root

git clone git://github.com/openstack/python-novaclient.git

cd python-novaclient

python setup.py install

Note that you might need to install git to complete this step:

apt-get -y install git

1	apt-get -y install git

yum install git

1	yum install git

4. Add credentials to .bash_profile

cat << 'EOF' >> /root/.bash_profile
export OS_AUTH_URL=https://identity.api.rackspacecloud.com/v2.0/
export OS_AUTH_SYSTEM=rackspace
export OS_REGION_NAME=DFW 
export OS_USERNAME=acme 
export OS_TENANT_NAME=11111
export NOVA_RAX_AUTH=1
export OS_PASSWORD=mypass
export OS_PROJECT_ID=11111
export OS_NO_CACHE=1
EOF
source /root/.bash_profile

cat << 'EOF' >> /root/.bash_profile

export OS_AUTH_URL=https://identity.api.rackspacecloud.com/v2.0/

export OS_AUTH_SYSTEM=rackspace

export OS_REGION_NAME=DFW

export OS_USERNAME=acme

export OS_TENANT_NAME=11111

export NOVA_RAX_AUTH=1

export OS_PASSWORD=mypass

export OS_PROJECT_ID=11111

export OS_NO_CACHE=1

EOF

source /root/.bash_profile

You’ll need to set the appropriate region, account number, username and password. 5. Verify credentials

nova credentials

1	nova credentials

If this fails with an error like:

root@web01:~/python-novaclient# nova credentials
Traceback (most recent call last):
  File "/usr/local/bin/nova", line 6, in <module>
    from novaclient.shell import main
  File "/usr/local/lib/python2.7/dist-packages/novaclient/__init__.py", line 15, in <module>
    import pbr.version
ImportError: No module named pbr.version

root@web01:~/python-novaclient# nova credentials

Traceback (most recent call last):

File "/usr/local/bin/nova", line 6, in <module>

from novaclient.shell import main

File "/usr/local/lib/python2.7/dist-packages/novaclient/__init__.py", line 15, in <module>

import pbr.version

ImportError: No module named pbr.version

then install “pbr” module:

pip install pbr

1	pip install pbr

6. Install RackSpace Cloud Networks Virtual Interface extensions

pip install os_virtual_interfacesv2_python_novaclient_ext

1	pip install os_virtual_interfacesv2_python_novaclient_ext

7. List Cloud Networks

nova network-list

1	nova network-list

Recap Script

September 7, 2013

Useful logging script from RackSpace: https://github.com/rackerlabs/recap.git See the readme file for instructions.

GlusterFS Cluster With Ubuntu On RackSpace Cloud

September 5, 2013

We want to build a high-availability storage cluster based on GlusterFS using RackSpace Cloud Servers on Ubuntu. Additionally we want to use RackSpace Cloud Networks to provide private networks for replication and cluster access. There’s a great doc by Falko Timme on Howto Forge titled: High-Availability Storage With GlusterFS 3.2.x On Ubuntu 11.10 – Automatic File Replication Across Two Storage Servers We’re going to follow this doc with a few modifications for Cloud Networks and using a newer version of Gluster. As shown in the diagram, we’ll have two Cloud Networks, one for replication between the servers and one for access by clients to the storage. Part 1 – Server Setup 1. Create servers and networks – Login to your RackSpace Cloud account and create two server following these guidelines: Make sure you choose a Next Gen region for the servers. For the Image choose “Ubuntu 13.04 (Raring Ringtail)” Select

Percona XtraDB Cluster on Ubuntu

September 2, 2013

In this article we’re going to build a Percona XtraDB Cluster using a pair of RackSpace Cloud Servers. Percona XtraDB Cluster is a MySQL compatible replacement supporting multi-master replication. For this project we’ll use the latest Ubuntu release and we’re going to use RackSpace Cloud Networks to setup an isolated segment for the replication between the cluster nodes. We’ll do two nodes in the cluster but you can add additional nodes as desired. Finally we’ll use a RackSpace Cloud Load Balancer to distribute traffic between the nodes. To get started, create the cloud servers from the RackSpace control panel using the following guidelines: Make sure you choose a Next Gen region for the servers. For the Image choose “Ubuntu 13.04 (Raring Ringtail)” Select a size based on your requirements. We’re using 1GB for this article. In the Networks section, when creating the first server, click the “Create Network” button and

Secure Hosting On RackSpace Cloud

August 23, 2013

We’re going to build a highly secure hosting environment on RackSpace Cloud using Cloud Networks and the new Brocade Vyatta vRouter image. The diagrams shows the target configuration: There are 4 networks: Public – this is the RackSpace Public Cloud/Internet network. The vRouter connects via eth0 to this network with public address of 1.1.1.1 LocalPrivate – this is a private Cloud Network that connects the vRouter and the servers. This network uses the private 192.168.3.0/24 subnet. DBPrivate – this is a private Cloud Network that connects the web and database servers. This network uses the private 192.168.4.0/24 subnet. Service – this is RackSpaces multi-tenent management network. This network is not being used and is not shown in the diagram. On these networks are three servers: Brocade Vyatta vRouter – this device provides a router, firewall and VPN termination point Web Server – provides hosting for the web application. Database Server – provides