Ensure that the 'on-failure' container restart policy is set to '5'

낮음레벨 1자동docker

설명

Restart policy 'always' (or on-failure with unlimited retries) can hide failures and turn a crashing container into a resource drain; on-failure with at most 5 retries is recommended. Flags always, unless-stopped and on-failure with 0 or more than 5 retries. The audit inspects every running container (docker ps -q) and prints the offending names; a host with no running containers is compliant.

점검 방법

감사 방식: 셸 명령

shell

ids=$(docker ps -q) || exit 1; [ -z "$ids" ] && { echo compliant; exit 0; }; out=$(docker inspect --format '{{.Name}} {{.HostConfig.RestartPolicy.Name}} {{.HostConfig.RestartPolicy.MaximumRetryCount}}' $ids) || exit 1; bad=$(printf '%s\n' "$out" | awk '$2=="always" || $2=="unless-stopped" || ($2=="on-failure" && ($3+0==0 || $3+0>5)){print $1" "$2":"$3}'); [ -z "$bad" ] && echo compliant || printf '%s\n' "$bad"

예상 출력: compliant

조치 방법

조치 방식: 가이드 또는 인프라 패치

Redeploy with --restart=on-failure:5 (compose: 'restart: on-failure:5') or update in place: docker update --restart=on-failure:5 <container>.

속성

운영 체제: 모두
태그: dockerruntime
참고 자료: CIS Docker Benchmark v1.9.0 - 5.15 Ensure that the 'on-failure' container restart policy is set to '5'

이 호스트 점검하기

감사 권한이 있는 시스템에서 실행하세요. 스캔은 읽기 전용입니다.

shell

tmaegis scan --target docker