tests: the initial database scripts support configuration via variable. (#114)

Author: xiaocang

.travis/initializedb.sh

@@ -39,17 +39,24 @@ socket=/var/run/mysqld/mysqld.sock
 EOF
 
 path=`pwd`
+container_name=mysqld
+
+if [ "$(sudo docker ps -a --filter "name=^/$container_name$" --format '{{.Names}}')" == "$container_name" ]; then
+    sudo docker stop $container_name
+    sudo docker rm $container_name
+fi
 
 sudo chmod -R 777 /var/run/mysqld
 sudo docker pull ${DB_VERSION}
 sudo docker run \
     -itd \
     --privileged \
-    --name=mysqld \
+    --name=$container_name \
     --pid=host \
     --net=host \
     --ipc=host \
     -e MYSQL_ALLOW_EMPTY_PASSWORD=yes \
+    -e MYSQL_TCP_PORT="${TEST_NGINX_MYSQL_PORT:-3306}" \
     --volume=/var/run/mysqld:/var/run/mysqld \
     --volume=$path/mysqld.cnf:/etc/mysql/conf.d/mysqld.cnf \
     --volume=$path/t/data/test.crt:/etc/mysql/ssl/test.crt \
@@ -58,19 +65,19 @@ sudo docker run \
     ${DB_VERSION}
 
 mysql() {
-    docker exec mysqld mysql "${@}"
+    sudo docker exec mysqld mysql "${@}"
 }
-while :
+for i in {1..100}
 do
     sleep 3
     mysql --protocol=tcp -e 'select version()' && break
 done
-docker logs mysqld
+sudo docker logs mysqld
 
 if [ ! -d download-cache ]; then mkdir download-cache; fi
 if [ ! -f download-cache/world.sql.gz ]; then wget -O download-cache/world.sql.gz http://downloads.mysql.com/docs/world.sql.gz; fi
-docker cp download-cache/world.sql.gz mysqld:/tmp/world.sql.gz
-docker exec mysqld /bin/sh -c "zcat /tmp/world.sql.gz | mysql -uroot"
+sudo docker cp download-cache/world.sql.gz mysqld:/tmp/world.sql.gz
+sudo docker exec mysqld /bin/sh -c "zcat /tmp/world.sql.gz | mysql -uroot"
 
 mysql -uroot -e 'create database ngx_test;'
 mysql -uroot -e 'create user "ngx_test"@"%" identified by "ngx_test";'