From 0e5c6060d1c60eec4aaf7cdb51d7c3a60a993943 Mon Sep 17 00:00:00 2001
From: seanb-uk <seanb-uk@users.noreply.github.com>
Date: Sat, 4 Mar 2017 12:45:15 +0000
Subject: [PATCH] Update centos.markdown (#2183)

Added details for installing and enabling software collections and the adjustment needed to the systemd unit file.
---
 source/_docs/installation/centos.markdown | 47 +++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/source/_docs/installation/centos.markdown b/source/_docs/installation/centos.markdown
index 2a001a96448..21ffd270130 100644
--- a/source/_docs/installation/centos.markdown
+++ b/source/_docs/installation/centos.markdown
@@ -13,3 +13,50 @@ To run Python 3.x on [CentOS](https://www.centos.org/) or RHEL (Red Hat Enterpri
 
 There are effort in progress to bring Python 3.4 to [Extra Packages for Enterprise Linux (EPEL)](https://fedoraproject.org/wiki/EPEL) which will allow you to follow the [Fedora Instructions](/docs/installation/fedora/).
 
+### {% linkable_title Using Software Collections %}
+
+First of all install the software collection repository as root. For example, on CentOS:
+
+```bash
+$ yum install centos-release-scl
+```
+
+Then install the Python 3.5 package:
+
+```bash
+$ yum install rh-python35
+```
+
+Once installed, switch to your homeassistant user (if you've set one up), enable the software collection and check that it has set up the new version of Python:
+
+```bash
+$ scl enable rh-python35 bash
+$ python --version
+Python 3.5.1
+```
+
+You will be in a command shell set up with Python 3.5 as your default version. The virtualenv and pip commands will be correct for this version, so you can now create a virtual environment and install home assistant following the main [instructions](https://home-assistant.io/docs/installation/virtualenv/#step-4-set-up-the-virtualenv).
+
+You will need to enable the software collection each time you log on before you activate your virtual environment.
+
+### {% linkable_title Systemd with Software Collections %}
+
+To autostart homeassistant using systemd follow the main [instructions](https://home-assistant.io/docs/autostart/systemd/) and adjust the template as follows:
+
+```
+[Unit]
+Description=Home Assistant
+After=network.target
+
+[Service]
+Type=simple
+User=homeassistant
+# Make sure the virtualenv Python binary is used
+Environment=VIRTUAL_ENV="/srv/homeassistant"
+Environment=PATH="$VIRTUAL_ENV/bin:$PATH"
+# ExecStart using software collection:
+ExecStart=/usr/bin/scl enable rh-python35 -- /srv/homeassistant/bin/hass -c "/home/homeassistant/.homeassistant"
+
+[Install]
+WantedBy=multi-user.target
+```