需求：
由於redis上雲，需要統計一批主機上面的主機內存和redis實例內存使用情況。
#!/bin/bash rm -rf redis_mem.log ps -ef |grep redis-server |grep -v grep | awk '$NF~/cluster/{print $(NF-1);next}{print $NF}' |awk -F':' '{print $2}' >redis_ports for i in `cat redis_ports` do redis-cli -p $i info > info.log used_mem=$(grep -w 'used_memory' info.log | awk -F':' '{print $2}' | sed 's/\r//') max_mem=$(grep -w 'maxmemory' info.log | awk -F':' '{print $2}' | sed 's/\r//') #role=$(grep role info.log | awk -F':' '{print $2}' | sed 's/\r//') printf '%10s\t %10s\t %10s\t\n' $i $used_mem $max_mem >> redis_mem.log done host_total_mem=$(free -g | sed -n '2p' | awk '{print $2}') redis_used_mem=$(cat redis_mem.log | awk '{sum+=$2}END{printf "%.2f",sum/1024/1024/1024}') redis_max_mem=$(cat redis_mem.log | awk '{sum+=$3}END{print sum/1024/1024/1024}') redis_host_ip=$(ip addr | grep 'state UP' -A2 | tail -n1 | awk '{print $2}' | awk -F"/" '{print $1}') mem_used_pect=$(awk 'BEGIN{printf "%.2f%",'$redis_used_mem'/'$host_total_mem'*100}') #printf '%20s\t %10s\t %10s\t %10s\t %10s\n' 主機ip 主機物理內存 redis設置最大內存 本機redis已使用內存 redis使用內存比例 printf '%20s\t %10s\t %10s\t %10s\t %10s\n' $redis_host_ip $host_total_mem $redis_max_mem $redis_used_mem $mem_used_pect
假設以上腳本名test1.sh,將腳本分發到需要check的主機/tmp目錄下
ansible -i test1 all -m copy -s -a "src=test1.sh dest=/tmp/test1.sh"
執行結果：ansible -i test1 all -m shell -s -a "sh /tmp/test1.sh" | grep -v 'rc'
192.168.100.10 189 120 14.07 7.44% 192.168.100.11 189 140 16.42 8.69% 192.168.100.12 189 120 14.33 7.58% 192.168.100.13 189 120 14.31 7.57% 192.168.100.14 189 120 14.56 7.70% 192.168.100.15 189 120 14.32 7.58% 192.168.100.16 189 130 15.54 8.22% 192.168.100.17 189 130 15.76 8.34%