Add new soft parameters

Make max_connections and innodb_buffer_pool_size configurable
through soft params instead of hard.

Change-Id: Id0bb8f6b6091289275864bf4dd6a6890d11b4782

README.rst

           user: root
           password: pass
 
-InnoDB parameters
-=================
+Configurable soft parameters
+============================
 
-- **innodb_buffer_pool_size** - the default value is 35% of the available ram
+- **galera_innodb_buffer_pool_size** - the default value is 3138M
+- **galera_max_connections** - the default value is 20000
 
 Usage:
 
 .. code-block:: yaml
 
-    galera:
-        master:
-          innodb_buffer_pool_size: 1024M
-        slave:
-          innodb_buffer_pool_size: 1024M
+    _param:
+      galera_innodb_buffer_pool_size: 1024M
+      galera_max_connections: 200 
 
 Usage
 =====

galera/files/my.cnf

 datadir=/var/lib/mysql
 bind-address={{ service.bind.address }}
 port=3306
-max_connections={{ service.get('max_connections', 20000) }}
+max_connections={{ service.max_connections }}
 default-storage-engine=innodb
 binlog_format=ROW
 collation-server=utf8_general_ci
 
 innodb_file_format=Barracuda
 innodb_file_per_table=1
-{%- if service.innodb_buffer_pool_size is not defined %}
-  {% set buffer_pool_size = '%.0fM'%(grains['mem_total']*0.35) %}
-{%- else %}
-  {% set buffer_pool_size = service.innodb_buffer_pool_size %}
-{%- endif %}
-innodb_buffer_pool_size={{ buffer_pool_size }}
+innodb_buffer_pool_size={{ service.innodb_buffer_pool_size }}
 innodb_log_file_size=627M
 innodb_read_io_threads=8
 innodb_write_io_threads=8

galera/files/my.cnf.container

 pid_file=/var/lib/mysql/mysql.pid
 port=3306
 log_warnings=2
-innodb_buffer_pool_size=3138M
+innodb_buffer_pool_size={{ service.innodb_buffer_pool_size }}
 innodb_flush_log_at_trx_commit=2
 innodb_file_per_table=1
 innodb_data_file_path = ibdata1:100M:autoextend
 skip_name_resolve
 memlock=0
 sysdate_is_now=1
-max_connections={{ service.get('max_connections', 20000) }}
+max_connections={{ service.max_connections }}
 thread_cache_size=512
 query_cache_type = 0
 query_cache_size = 0

galera/files/my.cnf.init

 datadir=/var/lib/mysql
 bind-address={{ service.bind.address }}
 port=3306
-max_connections={{ service.get('max_connections', 20000) }}
+max_connections={{ service.max_connections }}
 default-storage-engine=innodb
 binlog_format=ROW
 collation-server=utf8_general_ci
 
 innodb_file_format=Barracuda
 innodb_file_per_table=1
-innodb_buffer_pool_size=3138M
+innodb_buffer_pool_size={{ service.innodb_buffer_pool_size }}
 innodb_log_file_size=627M
 innodb_read_io_threads=8
 innodb_write_io_threads=8

galera/map.jinja

 
 {%- set master = salt['grains.filter_by']({
+  'default': {
+    'max_connections': 20000,
+    'innodb_buffer_pool_size': '3138M',
+  },
   'Debian': {
     'pkgs': ['mysql-wsrep-5.6', 'galera-3', 'rsync', 'python-mysqldb', 'psmisc', 'netcat', 'percona-xtrabackup', 'socat', 'libdbd-mysql', 'python-pymysql'],
     'service': 'mysql',
     'socket': '/var/run/mariadb/mysqld.sock',
     'config': '/etc/my.cnf',
   },
-}, merge=pillar.galera.get('master', {})) %}
+}, merge=pillar.galera.get('master', {}), base='default') %}
 
 {%- set slave = salt['grains.filter_by']({
+  'default': {
+    'max_connections': 20000,
+    'innodb_buffer_pool_size': '3138M',
+  },
   'Debian': {
     'pkgs': ['mysql-wsrep-5.6', 'galera-3', 'rsync', 'python-mysqldb', 'libmysqlclient18', 'psmisc', 'netcat', 'percona-xtrabackup', 'socat', 'libdbd-mysql', 'python-pymysql'],
     'service': 'mysql',
     'socket': '/var/run/mysqld/mysqld.sock',
     'config': '/etc/mysql/my.cnf',
     },
-}, grain='oscodename', merge=pillar.galera.get('slave', {}))) %}
+}, grain='oscodename', merge=pillar.galera.get('slave', {})), base='default') %}

metadata/service/master/cluster.yml

     galera_server_bind_address: ${_param:cluster_local_address}
     galera_server_bind_port: 3306
     galera_server_admin_user: root
+    galera_max_connections: 20000
+    galera_innodb_buffer_pool_size: 3138M
   galera:
     master:
       enabled: true
         port: 4567
       - host: ${_param:cluster_node03_address}
         port: 4567
+      max_connections: ${_param:galera_max_connections}
+      innodb_buffer_pool_size: ${_param:galera_innodb_buffer_pool_size}
   mysql:
     server:
       users:

metadata/service/master/container.yml

     galera_server_cluster_name: galeracluster
     galera_server_bind_port: 3306
     galera_server_admin_user: root
+    galera_max_connections: 20000
+    galera_innodb_buffer_pool_size: 3138M
   kubernetes:
     control:
       configmap:
                   port: 4567
                 - host: ${_param:mysql_service_host03}
                   port: 4567
+                max_connections: ${_param:galera_max_connections}
+                innodb_buffer_pool_size: ${_param:galera_innodb_buffer_pool_size}
             mysql:
               server:
                 users:

metadata/service/slave/cluster.yml

     galera_server_bind_address: ${_param:cluster_local_address}
     galera_server_bind_port: 3306
     galera_server_admin_user: root
+    galera_max_connections: 20000
+    galera_innodb_buffer_pool_size: 3138M
   galera:
     slave:
       enabled: true
         port: 4567
       - host: ${_param:cluster_node03_address}
         port: 4567
+      max_connections: ${_param:galera_max_connections}
+      innodb_buffer_pool_size: ${_param:galera_innodb_buffer_pool_size}
   mysql:
     server:
       users:

tests/pillar/master_cluster.sls

         port: 4567
       - host: 127.0.0.1
         port: 4567
+      max_connections: 20000
+      innodb_buffer_pool_size: 3138M
   mysql:
     server:
       users:

tests/pillar/slave_cluster.sls

         port: 4567
       - host: 127.0.0.1
         port: 4567
+      max_connections: 20000
+      innodb_buffer_pool_size: 3138M
   mysql:
     server:
       users: