Linux K8s 脚本样例

#通过脚本遍历pod，做xxx操作样例

#!/bin/bash

d1=$(date -d "$3" +%s)

if [ $(date +%s) -gt $d1 ]; then

      echo "小于当前时间"

      exit 0

fi

time=$(($d1 - $(date +%s)))

echo "start ……"

pods=($(kubectl -n namespacexxx get po -l app=$1 --output=jsonpath='{range .items[*]}{.metadata.name}{"\n"}{end}'))

for ((i = 0; i < $(((${#pods[@]} * 3 + 4) / 5)); i++)); do

    $(kubectl -n namespacexxx  exec -it ${pods[i]} -- mkdir -p test)

    $(kubectl cp test/while_test.sh namespacexxx /${pods[i]}:/app/test/while_test.sh)

    $(kubectl cp test/test_start.sh namespacexxx /${pods[i]}:/app/test/test_start.sh)

    echo "submit ${pods[i]}"

    $(kubectl -n namespacexxx  exec ${pods[i]} -- nohup sh test/test_start.sh $2  $time >>test/cpu_test.log 2>&1 &)

done

sh test/start.sh xxxpod 2 "2022-10-27 12:09:00" (不需要是可执行文件)