Drop EL6 support

Current acceptance tests are failing and it's going EOL soon.

README.md

@@ -499,7 +499,6 @@ that were available on 2017-11-29:
 * Ubuntu 16.04 (Xenial) ```0.10``` ```0.12``` ```4.x``` ```5.x``` ```6.x``` ```7.x``` ```8.x``` ```9.x```
 * Ubuntu 16.10 (Yakkety) ```0.12``` ```4.x``` ```6.x``` ```7.x``` ```8.x```
 * Ubuntu 17.10 (Artful) ```4.x``` ```6.x``` ```8.x``` ```9.x```
-* RHEL/CentOS 6 ```0.10``` ```0.12``` ```4.x``` ```5.x``` ```6.x``` ```7.x``` ```8.x``` ```9.x```
 * RHEL/CentOS 7 ```0.10``` ```0.12``` ```4.x``` ```5.x``` ```6.x``` ```7.x``` ```8.x``` ```9.x```
 * Amazon Linux - See RHEL/CentOS 7
 * Fedora 25 ```4.x``` ```6.x``` ```7.x``` ```8.x``` ```9.x```
@@ -520,16 +519,15 @@ this with the package_provider parameter to use an alternative
 
 This module has received limited testing on:
 
-* CentOS/RHEL 6/7/8
-* Debian 8
+* CentOS/RHEL 7/8
+* Debian 9/10
 * Ubuntu 16.04/18.04/20.04
 
 The following platforms should also work, but have not been tested:
 
 * Amazon Linux
 * Archlinux
 * Darwin
-* Debian 9
 * Fedora
 * FreeBSD
 * Gentoo
@@ -544,7 +542,7 @@ This modules uses `puppetlabs-apt` for the management of the NodeSource
 repository. If using an operating system of the Debian-based family, you will
 need to ensure that `puppetlabs-apt` version 4.4.0 or above is installed.
 
-If using CentOS/RHEL 6/7 and you wish to install Node.js from EPEL rather
+If using CentOS/RHEL 7 and you wish to install Node.js from EPEL rather
 than from the NodeSource repository, you will need to ensure `puppet-epel` is
 installed and is applied before this module.
 

manifests/params.pp

@@ -78,7 +78,7 @@
  $package_provider = undef
  }
  'RedHat': {
- if $facts['os']['release']['major'] =~ /^[678]$/ {
+ if $facts['os']['release']['major'] =~ /^[78]$/ {
  $manage_package_repo = true
  $nodejs_debug_package_name = 'nodejs-debuginfo'
  $nodejs_dev_package_name = 'nodejs-devel'

manifests/repo/nodesource.pp

@@ -12,7 +12,7 @@
 
  case $facts['os']['family'] {
  'RedHat': {
- if $facts['os']['release']['major'] =~ /^[678]$/ {
+ if $facts['os']['release']['major'] =~ /^[78]$/ {
  $dist_version = $facts['os']['release']['major']
  $name_string = "Enterprise Linux ${dist_version}"
  }

metadata.json

@@ -11,31 +11,27 @@
  {
  "operatingsystem": "RedHat",
  "operatingsystemrelease": [
- "6",
  "7",
  "8"
  ]
  },
  {
  "operatingsystem": "CentOS",
  "operatingsystemrelease": [
- "6",
  "7",
  "8"
  ]
  },
  {
  "operatingsystem": "OracleLinux",
  "operatingsystemrelease": [
- "6",
  "7",
  "8"
  ]
  },
  {
  "operatingsystem": "Scientific",
  "operatingsystemrelease": [
- "6",
  "7",
  "8"
  ]

spec/classes/nodejs_spec.rb

@@ -312,11 +312,11 @@
  end
  end
 
- ['6.0', '7.0', '27'].each do |operatingsystemrelease|
+ ['7.0', '27'].each do |operatingsystemrelease|
  osversions = operatingsystemrelease.split('.')
  operatingsystemmajrelease = osversions[0]
 
- if operatingsystemrelease =~ %r{^[6-7]\.(\d+)}
+ if operatingsystemrelease == '7'
  operatingsystem = 'CentOS'
  dist_type = 'el'
  repo_baseurl = "https://rpm.nodesource.com/pub_12.x/#{dist_type}/#{operatingsystemmajrelease}/\$basearch"