fix(install): use EPEL repo for `amazonlinux-2`

ufw/package/install.sls

@@ -6,6 +6,18 @@
 {%- from tplroot ~ "/map.jinja" import ufw with context %}
 
 ufw-package-install-pkg-installed:
+  {%- if grains.get('osfinger', '') == 'Amazon Linux-2' %}
+  pkgrepo.managed:
+    - name: epel
+    - humanname: Extra Packages for Enterprise Linux 7 - $basearch
+    - mirrorlist: https://mirrors.fedoraproject.org/metalink?repo=epel-7&arch=$basearch
+    - enabled: 1
+    - gpgcheck: 1
+    - gpgkey: https://dl.fedoraproject.org/pub/epel/RPM-GPG-KEY-EPEL-7
+    - failovermethod: priority
+    - require_in:
+      - pkg: ufw-package-install-pkg-installed
+  {%- endif %}
   pkg.installed:
     - name: {{ ufw.package }}