The following is the collectd config that I am running on my RHEL 7 kvm hypervisor. This is not meant to be an all inclusive config for collectd, rather I am looking to gather basic performance metrics on my hypervisors and VMs.

Note that I have disabled selinux, as I am running these hypervisors in my lab. Do not do the same in your production environments.

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#setenforce 0

I also edited /etc/selinux/config as shown below. Again, this is for non-prod/test envs. Do not disable in production

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# This file controls the state of SELinux on the system.

# SELINUX= can take one of these three values:

#     enforcing - SELinux security policy is enforced.

#     permissive - SELinux prints warnings instead of enforcing.

#     disabled - No SELinux policy is loaded.

SELINUX=disabled

# SELINUXTYPE= can take one of three two values:

#     targeted - Targeted processes are protected,

#     minimum - Modification of targeted policy. Only selected processes are protected. 

#     mls - Multi Level Security protection.

SELINUXTYPE=targeted

Also note that I have already configured the EPEL repo.. again, not production.

EPEL repo installed via the command below

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rpm -ivh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

First a couple of steps to get us up and running. We need to install packages

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# yum -y install collectd collectd-virt.x86_64 collectd-rrdtool.x86_64 collectd-sensors.x86_64 collectd-smart.x86_64 collectd-netlink.x86_64 collectd-ipmi.x86_64

We also need to write our config.

You can pull my config using the gist below

We now need to enable and start collectd

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#systemctl enable collect

#systemctl start collectd