Centos install docs are missing a step

[forkwhilefork]

Bug Description

In the Centos installation guide, there is a line sudo yum -y install gcc-c++ make nodejs yarn redis. However this will fail to install redis unless EPEL is installed. Without redis, hyperglass will not start. So, this should be added to the docs.

Expected behavior

I would expect the instructions in the docs to work on a brand-new installation of Centos without any additional steps.

Steps to Reproduce

Follow the instructions.

Possible Solution

Add a line in the docs to install EPEL:
yum -y install epel-release

Environment

Server

• OS: Centos 7

[forkwhilefork]

This isn't really a bug, but it's closer to a bug than a feature request I think.

[thatmattlove]

Thank you! I've added this to the docs on my local repo, the next push will auto update the docs and close this out once it's live.

[forkwhilefork]

please see my comment on the commit - the installation of epel-release needs to happen before the installation of redis so that the epel repo is in place and redis can be resolved.

[thatmattlove]

Thanks - I moved it up to the initial steps along with the python install, so it would be there prior to running the Yarn/Redis/etc. installs.