fixed docker build

docker/build.sh

@@ -17,6 +17,7 @@ BASE=${bin_abs_path}
 if [ "$1" == "base" ] ; then
     docker build --no-cache -t canal/osbase $BASE/base
 else 
+    rm -rf $BASE/canal.*.tar.gz ; 
     cd $BASE/../ && mvn clean package -Dmaven.test.skip -Denv=release && cd $current_path ;
     if [ "$1" == "kafka" ] ; then
 	   cp $BASE/../target/canal-kafka-*.tar.gz $BASE/

docker/run.sh

@@ -10,7 +10,7 @@ function usage() {
     echo "         -e canal.instance.connectionCharset=UTF-8 \\"
     echo "         -e canal.instance.tsdb.enable=true \\"
     echo "         -e canal.instance.gtidon=false \\"
-    echo "         -e canal.instance.filter.regex=.*\\..* "
+    echo "         -e canal.instance.filter.regex=.*\\\\\\..* "
     exit
 }