5.5. 了解 Compliance Operator
通过 Compliance Operator，OpenShift Container Platform 管理员可以描述集群所需的合规状态，并概述缺陷及修复方法。Compliance Operator 评估 OpenShift Container Platform 的 Kubernetes API 资源以及运行集群的节点的合规性。Compliance Operator 使用 NIST 认证工具 OpenSCAP 扫描并执行内容所提供的安全性策略。
重要
Compliance Operator 仅适用于 Red Hat Enterprise Linux CoreOS（RHCOS）部署。
5.5.1. Compliance Operator 配置集
有多个配置集可用于安装 Compliance Operator。您可以使用 oc get 命令来查看可用的配置集、配置集详情和特定规则。
查看可用的配置集：
$ oc get -n <namespace> profiles.compliance
本例在默认
openshift-compliance命名空间中显示配置集：$ oc get -n openshift-compliance profiles.compliance
输出示例
NAME AGE ocp4-cis 32m ocp4-cis-node 32m ocp4-e8 32m ocp4-moderate 32m ocp4-moderate-node 32m ocp4-nerc-cip 32m ocp4-nerc-cip-node 32m ocp4-pci-dss 32m ocp4-pci-dss-node 32m rhcos4-e8 32m rhcos4-moderate 32m rhcos4-nerc-cip 32m
这些配置集代表不同的合规性基准。每个配置集将其应用到的产品名称添加为配置集名称的前缀。
ocp4-e8将 Essential 8 基准应用到 OpenShift Container Platform 产品，而rhcos4-e8将 Essential 8 基准应用到 Red Hat Enterprise Linux CoreOS (RHCOS) 产品。查看配置集的详细信息：
$ oc get -n <namespace> -oyaml profiles.compliance <profile name>
本例显示
rhcos4-e8配置集的详情：$ oc get -n openshift-compliance -oyaml profiles.compliance rhcos4-e8
输出示例
apiVersion: compliance.openshift.io/v1alpha1 description: |- This profile contains configuration checks for Red Hat Enterprise Linux CoreOS that align to the Australian Cyber Security Centre (ACSC) Essential Eight. A copy of the Essential Eight in Linux Environments guide can be found at the ACSC website: ... id: xccdf_org.ssgproject.content_profile_e8 kind: Profile metadata: annotations: compliance.openshift.io/image-digest: pb-rhcos426smj compliance.openshift.io/product: redhat_enterprise_linux_coreos_4 compliance.openshift.io/product-type: Node labels: compliance.openshift.io/profile-bundle: rhcos4 name: rhcos4-e8 namespace: openshift-compliance ownerReferences: - apiVersion: compliance.openshift.io/v1alpha1 blockOwnerDeletion: true controller: true kind: ProfileBundle name: rhcos4 rules: - rhcos4-accounts-no-uid-except-zero - rhcos4-audit-rules-dac-modification-chmod - rhcos4-audit-rules-dac-modification-chown - rhcos4-audit-rules-execution-chcon - rhcos4-audit-rules-execution-restorecon - rhcos4-audit-rules-execution-semanage - rhcos4-audit-rules-execution-setfiles - rhcos4-audit-rules-execution-setsebool - rhcos4-audit-rules-execution-seunshare - rhcos4-audit-rules-kernel-module-loading-delete - rhcos4-audit-rules-kernel-module-loading-finit - rhcos4-audit-rules-kernel-module-loading-init - rhcos4-audit-rules-login-events - rhcos4-audit-rules-login-events-faillock - rhcos4-audit-rules-login-events-lastlog - rhcos4-audit-rules-login-events-tallylog - rhcos4-audit-rules-networkconfig-modification - rhcos4-audit-rules-sysadmin-actions - rhcos4-audit-rules-time-adjtimex - rhcos4-audit-rules-time-clock-settime - rhcos4-audit-rules-time-settimeofday - rhcos4-audit-rules-time-stime - rhcos4-audit-rules-time-watch-localtime - rhcos4-audit-rules-usergroup-modification - rhcos4-auditd-data-retention-flush - rhcos4-auditd-freq - rhcos4-auditd-local-events - rhcos4-auditd-log-format - rhcos4-auditd-name-format - rhcos4-auditd-write-logs - rhcos4-configure-crypto-policy - rhcos4-configure-ssh-crypto-policy - rhcos4-no-empty-passwords - rhcos4-selinux-policytype - rhcos4-selinux-state - rhcos4-service-auditd-enabled - rhcos4-sshd-disable-empty-passwords - rhcos4-sshd-disable-gssapi-auth - rhcos4-sshd-disable-rhosts - rhcos4-sshd-disable-root-login - rhcos4-sshd-disable-user-known-hosts - rhcos4-sshd-do-not-permit-user-env - rhcos4-sshd-enable-strictmodes - rhcos4-sshd-print-last-log - rhcos4-sshd-set-loglevel-info - rhcos4-sysctl-kernel-dmesg-restrict - rhcos4-sysctl-kernel-kptr-restrict - rhcos4-sysctl-kernel-randomize-va-space - rhcos4-sysctl-kernel-unprivileged-bpf-disabled - rhcos4-sysctl-kernel-yama-ptrace-scope - rhcos4-sysctl-net-core-bpf-jit-harden title: Australian Cyber Security Centre (ACSC) Essential Eight查看所需配置集中的规则：
$ oc get -n <namespace> -oyaml rules.compliance <rule_name>
本例在
rhcos4配置集中显示了rhcos4-audit-rules-login-events规则：$ oc get -n openshift-compliance -oyaml rules.compliance rhcos4-audit-rules-login-events
输出示例
apiVersion: compliance.openshift.io/v1alpha1 checkType: Node description: |- The audit system already collects login information for all users and root. If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following lines to a file with suffix.rules in the directory /etc/audit/rules.d in order to watch for attempted manual edits of files involved in storing logon events: -w /var/log/tallylog -p wa -k logins -w /var/run/faillock -p wa -k logins -w /var/log/lastlog -p wa -k logins If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/tallylog -p wa -k logins -w /var/run/faillock -p wa -k logins -w /var/log/lastlog -p wa -k logins id: xccdf_org.ssgproject.content_rule_audit_rules_login_events kind: Rule metadata: annotations: compliance.openshift.io/image-digest: pb-rhcos426smj compliance.openshift.io/rule: audit-rules-login-events control.compliance.openshift.io/NIST-800-53: AU-2(d);AU-12(c);AC-6(9);CM-6(a) control.compliance.openshift.io/PCI-DSS: Req-10.2.3 policies.open-cluster-management.io/controls: AU-2(d),AU-12(c),AC-6(9),CM-6(a),Req-10.2.3 policies.open-cluster-management.io/standards: NIST-800-53,PCI-DSS labels: compliance.openshift.io/profile-bundle: rhcos4 name: rhcos4-audit-rules-login-events namespace: openshift-compliance ownerReferences: - apiVersion: compliance.openshift.io/v1alpha1 blockOwnerDeletion: true controller: true kind: ProfileBundle name: rhcos4 rationale: Manual editing of these files may indicate nefarious activity, such as an attacker attempting to remove evidence of an intrusion. severity: medium title: Record Attempts to Alter Logon and Logout Events warning: Manual editing of these files may indicate nefarious activity, such as an attacker attempting to remove evidence of an intrusion.
