Few improvements(#33)

* README update
* Remove useless legacy files
* Small refactoring for Galera Cluster
* Modern Ansible
* Some changes on travis + Vagrant
* Help debug: display all facts
* Fix galera config for docker

tasks/replication/slave/debiancnf.yml

@@ -9,7 +9,10 @@
   delegate_to: "{{ mariadb_slave_import_from }}"
 
 - name: LOCAL_ACTION FILE | Secure fetched file
-  local_action: file path=/tmp/{{ mariadb_slave_import_from }}/debian.cnf mode=0600
+  local_action:
+    module: file
+    path: "/tmp/{{ mariadb_slave_import_from }}/debian.cnf"
+    mode: 0600
   become: no
 
 - name: COPY | Fetched file to /etc/mysql/debian.cnf

tasks/replication/slave/import_data.yml

@@ -7,7 +7,9 @@
     port: 22
 
 - name: COMMAND | Prepare backup another server
-  command: innobackupex --no-timestamp {{ mariadb_backup_dir }} creates={{ mariadb_backup_dir }}
+  command: innobackupex --no-timestamp {{ mariadb_backup_dir }}
+  args:
+    creates: "{{ mariadb_backup_dir }}"
   delegate_to: "{{ mariadb_slave_import_from }}"
   register: backup
 
@@ -24,7 +26,8 @@
   when: backup.changed and not mariadb_slave_replicate_mysqldb
 
 - name: MYSQL_VARIABLES | Get datadir
-  mysql_variables: variable=datadir
+  mysql_variables:
+    variable: datadir
   register: datadir
 
 - name: SET_FACT | related to mysql datadir
@@ -74,6 +77,8 @@
     mariadb_master_gtid: "{{ master_gtid.stdout }}"
 
 - name: FILE | Delete dump
-  file: path={{ mariadb_backup_dir }} state=absent
+  file:
+    path: "{{ mariadb_backup_dir }}"
+    state: absent
   delegate_to: "{{ mariadb_slave_import_from }}"
   when: mariadb_slave_import_flush_dump