add default values for ob-configserver env vars (#17)

Author: chris-sun-star

ob-configserver/Dockerfile

@@ -4,8 +4,9 @@ RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
 
 ARG VERSION
 ARG TARGETPLATFORM
-RUN if [[ ${TARGETPLATFORM} == 'linux/amd64' ]] ; then yum install -y http://mirrors.aliyun.com/oceanbase/community/stable/el/8/x86_64/ob-configserver-${VERSION}.el8.x86_64.rpm ; else yum install -y http://mirrors.aliyun.com/oceanbase/community/stable/el/8/aarch64/ob-configserver-${VERSION}.el8.aarch64.rpm ; fi
+RUN if [[ ${TARGETPLATFORM} == 'linux/amd64' ]] ; then rpm -ivh http://mirrors.aliyun.com/oceanbase/community/stable/el/8/x86_64/ob-configserver-${VERSION}.el8.x86_64.rpm ; else rpm -ivh http://mirrors.aliyun.com/oceanbase/community/stable/el/8/aarch64/ob-configserver-${VERSION}.el8.aarch64.rpm ; fi
 ADD config.yaml.template /home/admin/ob-configserver/conf/
+ADD env.sh /home/admin/ob-configserver
 ADD start.sh /home/admin/ob-configserver
 WORKDIR /home/admin/ob-configserver
 

ob-configserver/env.sh

@@ -0,0 +1,3 @@
+export DATABASE_TYPE=${MODE:-sqlite3}
+export SVC_ADDRESS=${SVC_ADDRESS:-$(hostname -i)}
+export SVC_PORT=${SVC_PORT:-8080}

ob-configserver/start.sh

@@ -1,5 +1,7 @@
  #!/bin/bash
 
+source env.sh
+
 if [[ "$DATABASE_TYPE" == "mysql" ]]; then
     echo 'use mysql'
     sed -e "s/\${SVC_ADDRESS}/${SVC_ADDRESS}/" -e "s/\${SVC_PORT}/${SVC_PORT}/" -e "s/\${DATABASE_TYPE}/${DATABASE_TYPE}/" -e "s/\${META_USER}/${META_USER}/" -e "s/\${META_PASSWORD}/${META_PASSWORD}/" -e "s/\${META_HOST}/${META_HOST}/" -e "s/\${META_PORT}/${META_PORT}/" -e "s/\${META_DATABASE}/${META_DATABASE}/" ./conf/config.yaml.template | grep -v '#CONFIG_FOR_SQLITE' > ./conf/config.yaml