Openstack:Setting up Mapr 5.0.0 CentOS Sahara cluster

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Following is a description of the steps followed to setup Sahara Mapr 5.0.0 CentOS cluster on Openstack Liberty. Some steps in between include modifications done specifically for deployment on Keele University Openstack.

Upload Mapr Image to Glance

Some pre-built sahara images are available at http://sahara-files.mirantis.com/images/upstream/liberty/. Since Sahara deployments in Liberty don't offer cloud-init, hence we need to modify the qcow2 image before uploading it to glance. For this, we use a tool called guestfish. Following changes are done to the image:

  • (Keele University infra only) Add proxy for yum package manager and shell sessions. Also, add custom DHCP servers
$guestfish --rw -a sahara-liberty-mapr-5.0.0-centos-6.6.qcow2
<fs> run
<fs> mount /dev/sda1 /
<fs> vi /etc/yum.conf
# Add the below line
proxy=http://wwwcache.keele.ac.uk:8080
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