May 2018
Intermediate to advanced
256 pages
7h 6m
English
Content preview from OpenStack for Architects - Second Edition
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Installing the Pacemaker resource manager
Next, we'll install Pacemaker to manage the VIPs that we'll use with HAProxy to make the web services highly available. We assume that the cluster software is already available through yum to the controller nodes.
- First, install Pacemaker on both nodes using the following command:
# yum install -y pcs fence-agents-all
- Verify that the software is installed correctly by running the following command:
# rpm -q pcs pcs-0.9.137-13.el7_1.3.x86_64
- Next, add rules to the firewall to allow cluster traffic:
# firewall-cmd --permanent -add-service=high-availability
- Set the password for the Pacemaker cluster on each node using the following command:
# passwd hacluster
- Start the Pacemaker cluster ...
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