This is just an easy at-a-glance reference for installing the Go
cruise agent on Linux because I’ve done it a few times and just want to
have the instructions in one place. I’m using centos for my OS, but
these instructions are true for most rpm supporting linux varieties.
Download the rpm:
You have to download the agent from the website here. Copy this to somewhere sensible on the target box, like /tmp for example.
Create User and Extract rpm:
After following the standard instructions a couple of times I noticed
that the group and user “cruise” were not being created correctly on my
servers. This could be an issue with the rpm I was using or an issue
with the VM servers. Either way, to get around this issue I just
manually create the group and user before extracting the rpm:
useradd -G cruise cruise
Next I just install the rpm as root:
sudo rpm -i cruise-agent-2.0.0-11407.noarch.rpm
N.B. The latest rpm at this point in time is actually “go-agent-2.1.0-11943.noarch.rpm”.
The files are installed here:
Connecting the Agent with the Server:
The file /etc/default/cruise-agent needs to be edited so that the cruise agent knows how to connect to the cruise server.
Open this file in vim or something similar. it should look like this:
Simply change the IP address of the CRUISE_SERVER to the IP address of the cruise server! You might also need to change the port number if you’ve installed your cruise server to a non default port.
Next you need to start the agent:
And that’s about it. You should now see the agent appear in your agents list on the cruise server. Put a tick next to it and click enable and this will add the new agent to your cruise-config.xml, where you can assign resources or add it as an environment.