#!/bin/bash
#进入项目目录
#cd /Users/wucongxing/Desktop/work/php/hospital-applets-api  || exit
cd /data/www/hospital-applets-api  || exit

#nginx_upstrame="/Users/wucongxing/Desktop/test/hospital-upstream.conf"
nginx_upstrame="/etc/nginx/upstream/hospital-upstream.conf"
#echo nginx_upstrame

#确定可使用端口
online_port=0
reload_port=0

ports_list=(9508 9509)

for i in "${ports_list[@]}";
do
  ports_count=$(lsof -i:$i | wc -l)
  if [[ $ports_count -eq 0 ]]; then
      # 未占用 可使用
      reload_port=$i
  fi

  if [[ $ports_count -ne 0 ]]; then
      # 占用 需重启
      online_port=$i
  fi
done

if [[ $online_port == 0 ]]; then
    reload_port=${ports_list[1]}
else
    echo "当前端口 $online_port 使用中"
    echo "重启使用端口 $reload_port"
fi

if [[ $reload_port == 0 ]]; then
 echo '部署失败, 未获取到可用端口'
 exit 1;
fi

# 定义负载
upstrame="
upstream hospital {
    server 127.0.0.1:$reload_port;
}
"

echo "$upstrame" > $nginx_upstrame

#获取可用端口镜像数量
image=$(docker images "hospital-applets-api-$reload_port" | wc -l)
if [[ $image -eq 1 ]];then
  # 无可用端口镜像
  # 可用端口构建镜像
  echo '可用端口构建镜像'
  docker build -t "hospital-applets-api-$reload_port" .
else
  # 存在可用端口镜像，删除镜像容器
  docker rm "hospital-applets-api-$reload_port"

  echo '可用端口构建镜像'
  docker build -t "hospital-applets-api-$reload_port" .
fi

echo '启动新端口容器'
docker run --name "hospital-applets-api-$reload_port" --restart=always -d -p "$reload_port":9501 -v /var/log/hospital-applets-api/:/opt/www/runtime/logs "hospital-applets-api-$reload_port":latest

echo '重启nginx'
nginx -s reload

if [[ $online_port -ne 0 ]]; then
  echo '停止原端口容器'
  docker stop "hospital-applets-api-$online_port"

  echo '删除原端口容器'
  docker rm "hospital-applets-api-$online_port"

  echo '删除原端口镜像'
  docker rmi "hospital-applets-api-$online_port"
fi

echo "构建成功"