sed ip to host for docker (#391)

dockerfiles/n9e/Dockerfile

@@ -7,6 +7,9 @@ RUN nightingale/control build
 FROM centos:7
 WORKDIR /home/n9e
 COPY --from=builder /home/n9e/builder/nightingale/ .
+RUN \
+sed -i "s/127.0.0.1:6379/redis:6379/g" `grep -rl "127.0.0.1:6379" ./etc/` &&\
+sed -i 's/127.0.0.1/mysql/g' etc/mysql.yml
 COPY entrpoint.sh .
 RUN yum install mysql net-tools -y
-ENTRYPOINT ./entrpoint.sh
+ENTRYPOINT ./entrpoint.sh

dockerfiles/n9e/entrpoint.sh

@@ -1,8 +1,4 @@
 #!/bin/bash
-sed -i 's/127.0.0.1/mysql/g' etc/mysql.yml
-sed -i 's/addr: 127.0.0.1:6379/addr: redis:6379/g' etc/rdb.yml
-sed -i 's/addr: 127.0.0.1:6379/addr: redis:6379/g' etc/monapi.yml
-sed -i 's/addr: 127.0.0.1:6379/addr: redis:6379/g' etc/judge.yml
 
 mysqlRootPassword=1234