Enable CJK search in Docker (experimental)

```bash
docker run --name mattermost-cjk -d --publish 8065:80 seikichi/mattermost
```

see: https://hub.docker.com/r/seikichi/mattermost/

docker/1.4/Dockerfile

@@ -15,8 +15,8 @@ RUN groupadd -r mysql && useradd -r -g mysql mysql
 
 RUN apt-key adv --keyserver pool.sks-keyservers.net --recv-keys A4A9406876FCBD3C456770C88C718D3B5072E1F5
 
-ENV MYSQL_MAJOR 5.6
-ENV MYSQL_VERSION 5.6.25
+ENV MYSQL_MAJOR 5.7
+ENV MYSQL_VERSION 5.7.12
 
 RUN echo "deb http://repo.mysql.com/apt/debian/ wheezy mysql-${MYSQL_MAJOR}" > /etc/apt/sources.list.d/mysql.list
 

docker/1.4/docker-entry.sh

@@ -38,7 +38,7 @@ if [ ! -d "$DATADIR/mysql" ]; then
 	chown -R mysql:mysql "$DATADIR"
 
 	echo 'Running mysql_install_db'
-	mysql_install_db --user=mysql --datadir="$DATADIR" --rpm --keep-my-cnf
+	mysqld --initialize-insecure --user=mysql --datadir="$DATADIR"
 	echo 'Finished mysql_install_db'
 
 	mysqld --user=mysql --datadir="$DATADIR" --skip-networking &
@@ -108,4 +108,17 @@ sleep 5
 
 echo starting platform
 cd /mattermost/bin
+
+# Enable cjk search ;-p
+# Run `platform` to create tables
+./platform -config=/config_docker.json &
+sleep 5
+pkill platform
+# Use ngram parser (see: https://github.com/mattermost/platform/issues/2033)
+mysql -uroot -p$MYSQL_PASSWORD <<-EOSQL
+USE ${MYSQL_DATABASE};
+DROP INDEX idx_posts_message_txt ON Posts;
+CREATE FULLTEXT INDEX idx_posts_message_txt ON Posts (Message) WITH PARSER ngram;
+EOSQL
+
 ./platform -config=/config_docker.json