apiVersion: v1
data:
  switch_available_redis.sh: |-
    #!/bin/bash
    pwd=`pwd`

    function check_replicaof_alive()
    {
      check_redis_ip=$1
      check_redis_port=$2
      if [ -n "$TLS_REDIS_FILE" ]; then
        redis-cli -h $check_redis_ip -p $check_redis_port  --tls --cacert $TLS_REDIS_FILE ping  > /dev/null
      else
        redis-cli -h $check_redis_ip -p $check_redis_port ping > /dev/null
      fi
      if [[ $? -eq 0 ]]; then
        return 0
      else 
        return 1 
      fi
    }

    function start()
    {
      current_date=$(date +%Y-%m-%d)
      #Get the IP of the current redis synchronization
      redis_info=$(redis-cli -h $REDIS_HOST -p $HOST_PORT CONFIG GET replicaof)

      str=(${redis_info//,/})
      db_ip=${str[1]}
      db_port=${str[2]}

      #1.Check whether the current redis connection address is CM master
      if [ "$db_ip" = "$REDIS_MASTER" -a "$MASTER_PORT" = "$db_port" ];then
        check_redis 0
      elif [ "$db_ip" = "$REDIS_SLAVE"  -a "$SLAVE_PORT" = "$db_port" ];then
        check_redis 1 
      else 
        check_redis 2
      fi
    }

    function  check_redis()
    {
      CHECK_TYPE=$1
      # Starting time
      start_time=$(date +%s)

      while true; do
        # Use redis-cli to detect connections
        check_replicaof_alive $REDIS_MASTER $MASTER_PORT
        # check return value
        if [[ $? -eq 0 ]]; then
            #If the current redis slaveof is not the master IP, check whether the master IP is alive and change the redis slaveof
            if [ "$CHECK_TYPE" != "0" ]; then
                echo "[`date '+%Y-%m-%d %T'`] update redis slaveof: $REDIS_MASTER $MASTER_PORT  " 
                up_redis $REDIS_MASTER $MASTER_PORT
                break
            fi 
            sleep 1
            break 
        else
            echo "[`date '+%Y-%m-%d %T'`] unable to connect to $REDIS_MASTER $MASTER_PORT redis server" 
            #If the current redis slaveof is slave IP, jump out of the loop and no longer continue to change redis slaveof
            if [ "$CHECK_TYPE" = "1" ]; then
                sleep 1
                break
            fi

        fi

        # Check if the duration is exceeded
        current_time=$(date +%s)
        elapsed_time=$((current_time - start_time))
        if [[ $elapsed_time -ge $CHECK_DURATION ]]; then 
            check_replicaof_alive $REDIS_SLAVE $SLAVE_PORT
          if [[ $? -eq 0 ]]; then
              echo "[`date '+%Y-%m-%d %T'`]  update redis slaveof: $REDIS_SLAVE $SLAVE_PORT redis server"
              up_redis $REDIS_SLAVE $SLAVE_PORT
              break
            else 
            echo "[`date '+%Y-%m-%d %T'`] unable to connect to $REDIS_SLAVE $SLAVE_PORT redis server"
          fi
        fi
      sleep 1
      done
    }

    function up_redis()
    {
      UP_IP=$1
      UP_PORT=$2

      check_replicaof_alive $UP_IP $UP_PORT
      if [[ $? -eq 0 ]]; then
          redis-cli -h $REDIS_HOST -p $HOST_PORT REPLICAOF $UP_IP $UP_PORT
          echo "[`date '+%Y-%m-%d %T'`] successfully changed Redis slaveof : $UP_IP $UP_PORT"
          sleep $INTERVAL_TIME
      else
          echo "[`date '+%Y-%m-%d %T'`] Change failed, unable to connect to $UP_IP $UP_PORT redis server"
      fi
    }

    REDIS_HOST="127.0.0.1"
    HOST_PORT=6379
    #Redis connection timeout (seconds)
    CHECK_DURATION=120
    # Redis master-slave switch synchronization interval time
    INTERVAL_TIME=5m
    REDIS_MASTER=""
    MASTER_PORT=""
    REDIS_SLAVE=""
    SLAVE_PORT=""
    TLS_REDIS_FILE=""
    

    usage()
    {
      echo "Usage: $0 [-m <master_ip:port>] [-s <slave_ip:port>] [-T <on/off>] [-t <time>] [-i <time>]"
      echo "Options:"
      echo "  -m <master_ip:port>  Specify value for option -m"
      echo "  -s <slave_ip:port>   Specify value for option -s"
      echo "  -T <on/off>          TLS file certificate enable"
      echo "  -t <value>           Connection detection time (seconds) Set option -t"
      echo "  -i <value>           Redis master-slave switch synchronization interval time Set option -i"
      exit 1
    }

    while getopts ":m:s:t:i:T:" opt; do
      case $opt in
        m)
          m_value=$OPTARG
          ;;
        s)
          s_value=$OPTARG
          ;;
        t)
          t_option=$OPTARG
          ;;
        i)
          i_option=$OPTARG
          ;;
        T)
          tls_option=$OPTARG
          ;;  
        \?)
          echo "Invalid option: -$OPTARG"
          usage
          ;;
        :)
          echo "Option -$OPTARG requires an argument."
          usage
          ;;
      esac
    done

    if [[ -z $m_value ]] || [[ -z $s_value ]]; then
      echo "Info: Only one Redis master IP is configured. The master-slave Redis switch program will be terminated."
    else
      m_str=(${m_value//:/ })
      REDIS_MASTER=${m_str[0]}
      MASTER_PORT=${m_str[1]}

      s_str=(${s_value//:/ })
      REDIS_SLAVE=${s_str[0]}
      SLAVE_PORT=${s_str[1]}

      if [ "on" = "$tls_option" ]; then
        TLS_REDIS_FILE="/opt/bitnami/extra/certs/self-sign.crt"
      fi

      if [ -n "$t_option" ]; then
        CHECK_DURATION=${t_option}
      fi

      if [ -n "$i_option" ]; then
        INTERVAL_TIME=${i_option}
      fi

      while true; do
        start
      done  
    fi
kind: ConfigMap
metadata:
  name: cm-cache-extra-scripts
  namespace: tsg-os-system