Adding galera config file

Added galera.cnf to support configuration of galera setups. Defaults
were added for Fedora based on Fedora 23 configuration defaults.

mysql/config.sls

@@ -26,6 +26,19 @@ mysql_server_config:
     {% endif %}
 {% endif %}
 
+{% if "galera_config" in mysql %}
+mysql_galera_config:
+  file.managed:
+    - name: {{ mysql.config_directory + mysql.galera_config.file }}
+    - template: jinja
+    - source: salt://mysql/files/galera.cnf
+    {% if os_family in ['Debian', 'Gentoo', 'RedHat'] %}
+    - user: root
+    - group: root
+    - mode: 644
+    {% endif %}
+{% endif %}
+
 {% if "library_config" in mysql %}
 mysql_library_config:
   file.managed:

mysql/defaults.yaml

@@ -136,8 +136,11 @@ Fedora:
   client: mariadb
   service: mariadb
   python: python2-mysql
+  config_directory: /etc/my.cnf.d/
   config:
-    file: /etc/my.cnf.d/server.cnf
+    file: /etc/my.cnf
+  server_config:
+    file: server.cnf
     sections:
       mysqld_safe:
         log_error: /var/log/mysqld.log
@@ -149,6 +152,29 @@ Fedora:
         port: 3306
         bind_address: 127.0.0.1
         symbolic_links: 0
+  galera_config:
+    file: galera.cnf
+    sections:
+      mysqld:
+        binlog_format: ROW
+        default-storage-engine: innodb
+        innodb_autoinc_lock_mode: 2
+        bind-address: 0.0.0.0
+        wsrep_provider: /usr/lib64/galera/libgalera_smm.so
+        wsrep_cluster_name: "my_wsrep_cluster"
+        wsrep_slave_threads: 1
+        wsrep_certify_nonPK: 1
+        wsrep_max_ws_rows: 131072
+        wsrep_max_ws_size: 1073741824
+        wsrep_debug: 0
+        wsrep_convert_LOCK_to_trx: 0
+        wsrep_retry_autocommit: 1
+        wsrep_auto_increment_control: 1
+        wsrep_drupal_282555_workaround: 0
+        wsrep_causal_reads: 0
+        wsrep_notify_cmd: noarg_present
+        wsrep_sst_method: rsync
+        wsrep_sst_auth: "root:"
 
 openSUSE:
   server: mariadb

mysql/files/galera.cnf

@@ -0,0 +1,42 @@
+# DO NOT CHANGE THIS FILE!
+# This config is generated by SALTSTACK
+# and all change will be overrided on next salt call
+{#-
+===== FETCH DATA =====
+-#}
+{%- from "mysql/defaults.yaml" import rawmap with context -%}
+{%- from "mysql/supported_sections.yaml" import supported_sections with context -%}
+{%- set datamap = salt['grains.filter_by'](rawmap, grain='os', merge=salt['pillar.get']('mysql:galera:lookup')) -%}
+{#-
+===== COMBINE DATA =====
+-#}
+{%- set goodParamList = datamap.galera_config.sections -%}
+{%- for section_name in supported_sections -%}
+	{%- set sectdict = datamap.galera_config.sections[section_name] | default({}) -%}
+	{%- for mparam, mvalue in salt['pillar.get']('mysql:galera:'+section_name, {}).items() -%}
+		{%- set mparamUnderscore = mparam | replace('-','_') -%}
+		{%- do sectdict.update({mparamUnderscore:mvalue}) -%}
+	{%- endfor -%}
+	{%- do goodParamList.update({section_name:sectdict}) -%}
+{%- endfor -%}
+{#-
+===== PRINT DATA =====
+-#}
+{%- for sname,sdata in goodParamList.items() -%}
+{%- if sdata %}
+
+[{{ sname }}]
+{%- for mparam, mvalue in sdata.items()|default([])|sort -%}
+{%- set indents = 40 - mparam|count %}
+{% if mvalue == "noarg_present" -%}
+{{ mparam }}
+{% elif mvalue == "SETONPLEASE"  %}
+{{ mparam }}{{ '='|indent(indents, true) }} ON
+{%- else -%}
+{{ mparam }}{{ '='|indent(indents, true) }} {{ mvalue }}
+{%- endif -%}
+{%- endfor -%}
+{%- endif -%}
+{%- endfor %}
+
+{{ datamap.galera_config.append | default('') }}