Updates to many roles, including main user role to allow setting an alternate home directory

db/mysql-percona/README.md

@@ -0,0 +1,26 @@
+This is the new role for MySQL percona.
+
+Do not use the deprecated mysql-percona-5.7 for new installations.
+
+This role is more advanced with tons of customizable variables.
+
+Example usage:
+
+- role: mysql-percona
+    vars:
+    mysql_version_major: 8
+    mysql_version_minor: 0
+    mysql_datadir: "/opt/mysql"
+    mysql_default_authentication_plugin: "mysql_native_password"
+    mysql_innodb_buffer_pool_size: "3G"
+    mysql_users:
+        - name: mreschke
+          pass: 'passhere'
+          host: '%'
+        - name: squaethem
+        - name: tableau
+
+See `defaults` for all variables.  See `tasks/users.yml` for all user options
+
+
+~mReschke 2022-03-09