add documentation for mysql_apt_repo

Author: Colin Hoglund

README.md

@@ -62,6 +62,18 @@ The MySQL users and their privileges. A user has the values `name`, `host` (defa
 
 (OS-specific, RedHat/CentOS defaults listed here) Packages to be installed. In some situations, you may need to add additional packages, like `mysql-devel`.
 
+    mysql_apt_repo_enable: false
+
+Use repo.mysql.com to install mysql packages. Used only for Debian based systems. Disabled by default.
+
+    mysql_apt_repo_release: "{{ansible_distribution_release}}"
+
+Override this if you want to install older versions of mysql on newer OS releases.
+
+    mysql_apt_repo_sources: [mysql-5.7]
+
+A list of sources to add to _/etc/apt/sources.list.d/_. Go to http://repo.mysql.com/apt/ubuntu/dists/trusty/ to see some examples.
+
     mysql_enablerepo: ""
 
 (RedHat/CentOS only) If you have enabled any additional repositories (might I suggest geerlingguy.repo-epel or geerlingguy.repo-remi), those repositories can be listed under this variable (e.g. `remi,epel`). This can be handy, as an example, if you want to install later versions of MySQL.

defaults/main.yml

@@ -17,11 +17,11 @@ overwrite_global_mycnf: yes
 
 # Use repo.mysql.com to install mysql packages. Used only for Debian based systems
 mysql_apt_repo_enable: false
-# override this if you want to install older versions of mysql on newer OS releases
+# Override this if you want to install older versions of mysql on newer OS releases
 mysql_apt_repo_release: "{{ansible_distribution_release}}"
-# check the repo for available entries
-# Example: http://repo.mysql.com/apt/ubuntu/dists/trusty/
-mysql_apt_repo_entries: [mysql-5.7]
+# A list of sources to add to _/etc/apt/sources.list.d/_
+# Go to http://repo.mysql.com/apt/ubuntu/dists/trusty/ to see some examples
+mysql_apt_repo_sources: [mysql-5.7]
 
 # Pass in a comma-separated list of repos to use (e.g. "remi,epel"). Used only
 # for RedHat systems (and derivatives).

tasks/setup-Debian.yml

@@ -10,7 +10,7 @@
 - name: Add repo.mysql.com apt repo
   apt_repository:
     repo: "deb http://repo.mysql.com/apt/{{ansible_distribution|lower}}/ {{mysql_apt_repo_release}} {{item}}"
-  with_items: "{{mysql_apt_repo_entries}}"
+  with_items: "{{mysql_apt_repo_sources}}"
   when: mysql_apt_repo_enable
 
 - name: Update apt to prefer repo.mysql.com packages