Python 容器重启原因OOMKilled，退出代码为1

最近，部署中包含多个pod 的同一容器在OOMKilled事件后重新启动.

State:          Running
      Started:      Tue, 15 Feb 2022 23:33:06 +0000
    Last State:     Terminated
      Reason:       OOMKilled
      Exit Code:    1
      Started:      Fri, 11 Feb 2022 17:48:21 +0000
      Finished:     Tue, 15 Feb 2022 23:33:05 +0000
    Ready:          True
    Restart Count:  1
    Limits:
      cpu:     1
      memory:  512Mi
    Requests:
      cpu:      1
      memory:   512Mi

如果容器超过可用内存的限制，那么它将以代码137退出.我猜容器没有达到极限.所以我的问题是，如果退出代码是1，原因是OOMKilled，会发生什么.

Update:

ret = subprocess.run(args, stderr=subprocess.PIPE, universal_newlines=True, check=False)
if ret.returncode != 0:
    logging.warning("Executing cmd failed: %s, code: %d, stderr: %s", cmd, ret.returncode, ret.stderr)
    raise Exception("Failed")

调用相关日志(log)时，返回-9:

2022-02-15T23:33:30.510Z WARNING "MainThread - Executing cmd failed: iptables-restore -n -w 3 restore-filter, code: -9, stderr: "
raise Exception("Failed")
Exception: Failed

从子流程的描述中.run():A negative value -N indicates that the child was terminated by signal N (POSIX only).

那么，因为引发了异常，python代码以1退出？可能