Fix MariaDB for ubuntu

In MariaDB we adjust the dependecies of what we install there as well
adding only what is appropriate for the install.

In Ansible we adjust some templates to all work around differences
between the different Linux families.

Change-Id: Ibc26e2f4d4a732630632d3ed27fb595b6fe019d2
Partially-Implements: blueprint install-from-ubuntu

ansible/roles/mariadb/templates/galera.cnf.j2

@@ -1,3 +1,4 @@
+{% set wsrep_driver = '/usr/lib/galera/libgalera_smm.so' if kolla_base_distro == 'ubuntu' else '/usr/lib64/galera/libgalera_smm.so' %}
 [mysqld]
 bind-address={{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}
 port={{ mariadb_port }}
@@ -13,7 +14,7 @@ wsrep_provider_options="gmcast.listen_addr=tcp://{{ hostvars[inventory_hostname]
 wsrep_node_address={{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}:{{ mariadb_wsrep_port }}
 wsrep_sst_receive_address={{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}:{{ mariadb_sst_port }}
 
-wsrep_provider=/usr/lib64/galera/libgalera_smm.so
+wsrep_provider={{ wsrep_driver }}
 wsrep_cluster_name="{{ database_cluster_name }}"
 wsrep_node_name={{ ansible_hostname }}
 wsrep_sst_method=xtrabackup-v2

docker/common/galera/config-galera.sh

@@ -1,27 +1,5 @@
 #!/bin/bash
 
-function configure_files {
-    crudini --set $CFG mariadb bind-address "${DB_CLUSTER_BIND_ADDRESS}"
-    crudini --set $CFG mariadb binlog_format "ROW"
-    crudini --set $CFG mariadb character-set-server "utf8"
-    crudini --set $CFG mariadb collation-server "utf8_general_ci"
-    crudini --set $CFG mariadb datadir "/var/lib/mysql"
-    crudini --set $CFG mariadb default-storage-engine "innodb"
-    crudini --set $CFG mariadb init-connect "'SET NAMES utf8'"
-    crudini --set $CFG mariadb innodb_autoinc_lock_mode "2"
-    crudini --set $CFG mariadb innodb_file_per_table 1
-    crudini --set $CFG mariadb innodb_flush_log_at_trx_commit "2"
-    crudini --set $CFG mariadb innodb_locks_unsafe_for_binlog "1"
-    crudini --set $CFG mariadb innodb_log_file_size "100M"
-    crudini --set $CFG mariadb query_cache_size "0"
-    crudini --set $CFG mariadb query_cache_type "0"
-    crudini --set $CFG mariadb wsrep_cluster_address "gcomm://${DB_CLUSTER_NODES}"
-    crudini --set $CFG mariadb wsrep_cluster_name "${DB_CLUSTER_NAME}"
-    crudini --set $CFG mariadb wsrep_provider "/usr/lib64/galera/libgalera_smm.so"
-    crudini --set $CFG mariadb wsrep_sst_auth "'root:${DB_ROOT_PASSWORD}'"
-    crudini --set $CFG mariadb wsrep_sst_method "${DB_CLUSTER_WSREP_METHOD}"
-}
-
 function bootstrap_db {
     mysqld_safe --wsrep-new-cluster &
 
@@ -53,33 +31,7 @@ function bootstrap_db {
     mysqladmin -p"${DB_ROOT_PASSWORD}" shutdown
 }
 
-function configure_db {
-    bootstrap_db
-
-    echo "GRANT ALL ON *.* TO 'root'@'%' IDENTIFIED BY '$DB_ROOT_PASSWORD' ;" > $DB_CLUSTER_INIT_SQL
-
-    if [ "$MARIADB_DATABASE" ]; then
-        echo "CREATE DATABASE IF NOT EXISTS $MARIADB_DATABASE ;" >> $DB_CLUSTER_INIT_SQL
-    fi
-
-    if [ "$MARIADB_USER" -a "$MARIADB_PASSWORD" ]; then
-        echo "CREATE USER '$MARIADB_USER'@'%' IDENTIFIED BY '$MARIADB_PASSWORD' ;" >> $DB_CLUSTER_INIT_SQL
-
-        if [ "$MARIADB_DATABASE" ]; then
-            echo "GRANT ALL ON $MARIADB_DATABASE.* TO '$MARIADB_USER'@'%' ;" >> $DB_CLUSTER_INIT_SQL
-        fi
-    fi
-
-    echo "FLUSH PRIVILEGES" >> $DB_CLUSTER_INIT_SQL
-}
-
 function populate_db {
     mysql_install_db
     chown -R mysql: /var/lib/mysql
 }
-
-function prepare_db {
-    populate_db
-    configure_db
-    configure_files
-}

docker_templates/galera/Dockerfile.j2

@@ -26,10 +26,18 @@ RUN yum install -y http://www.percona.com/redir/downloads/percona-release/redhat
 
 {% elif base_distro in ['ubuntu', 'debian'] %}
 
-RUN ["/bin/false"]
-
-# TODO(sdake) when ubuntu support is implemented we will need a line
-#     && rm -rf /var/lib/mysql/
+# At the end of this run statement we symlink two folders to match the folder
+# structure of the RPM family for mysql configs. This allows us to not change
+# the config-external.sh code
+# TODO(SamYaple): Remove that symlink once config-external is updated
+RUN apt-get install -y --no-install-recommends \
+        mariadb-galera-server \
+        percona-xtrabackup \
+        socat \
+        expect \
+    && apt-get clean \
+    && rm -rf /var/lib/mysql/* \
+    && ln -s /etc/mysql/conf.d/ /etc/my.cnf.d
 
 {% endif %}