基礎(chǔ)介紹
基礎(chǔ)描述
- Kubesec 是一個(gè)開源項(xiàng)目,旨在為 Kubernetes 提供安全特性。它提供了一組工具和插件,用于保護(hù)和管理在 Kubernetes 集群中的工作負(fù)載和基礎(chǔ)設(shè)施。Kubesec 的目標(biāo)是幫助開發(fā)人員和運(yùn)維人員在 Kubernetes 環(huán)境中實(shí)現(xiàn)安全性、可靠性和合規(guī)性。
特點(diǎn)
- 自動化的安全策略:Kubesec 提供了自動化的安全策略,可以基于角色的訪問控制(RBAC)和標(biāo)簽選擇器來定義和執(zhí)行安全規(guī)則。這可以幫助開發(fā)人員和運(yùn)維人員快速部署和管理安全策略,而無需手動編寫復(fù)雜的腳本來保護(hù) Kubernetes 集群。
- 加密和身份驗(yàn)證:Kubesec 支持對 Kubernetes 集群中的數(shù)據(jù)和通信進(jìn)行加密,以確保敏感數(shù)據(jù)的安全性。它還提供了身份驗(yàn)證和授權(quán)機(jī)制,可以驗(yàn)證集群中節(jié)點(diǎn)的身份并限制它們的訪問權(quán)限。
- 漏洞掃描和修復(fù):Kubesec 可以與漏洞掃描工具集成,以發(fā)現(xiàn)和修復(fù) Kubernetes 工作負(fù)載中的漏洞。它還可以監(jiān)視集群中的容器映像,并在發(fā)現(xiàn)新漏洞時(shí)自動更新容器映像。
- 合規(guī)性檢查:Kubesec 可以與合規(guī)性框架集成,以確保 Kubernetes 集群符合特定的安全標(biāo)準(zhǔn)和法規(guī)要求。它提供了可擴(kuò)展的插件架構(gòu),可以輕松添加新的合規(guī)性規(guī)則和檢查。
- 安全審計(jì)日志:Kubesec 可以生成詳細(xì)的安全審計(jì)日志,記錄集群中發(fā)生的安全事件和操作。這些日志可以用于監(jiān)控和檢測潛在的安全問題,并提供合規(guī)性報(bào)告。
kubesec官網(wǎng):https://kubesec.io/
開源地址:https://github.com/controlplaneio/kubesec
部署
在線下載
wget https://github.com/controlplaneio/kubesec/releases/download/v2.14.0/kubesec_linux_amd64.tar.gz
百度網(wǎng)盤下載
鏈接:https://pan.baidu.com/s/1KHb5Qn9k1uIQeFOE_Ib6rg?pwd=h0i0
提取碼:h0i0
–來自百度網(wǎng)盤超級會員V7的分享
安裝
- 解壓:
tar -zxf kubesec_linux_amd64.tar.gz
- 移入二進(jìn)制目錄:
mv kubesec /usr/bin/
- 查詢版本信息:
kubesec version
- 查詢 kubesec scan --help 使用方法
使用
官網(wǎng)樣例yaml
cat <<EOF > kubesec-test.yaml
apiVersion: v1
kind: Pod
metadata:
name: kubesec-demo
spec:
containers:
- name: kubesec-demo
image: gcr.io/google-samples/node-hello:1.0
securityContext:
readOnlyRootFilesystem: true
EOF
- 執(zhí)行 檢查yaml安全配置
kubesec scan kubesec-test.yaml
HTTP遠(yuǎn)程調(diào)用
- 部署docker容器
docker run -d -p 8080:8080 kubesec/kubesec http 8080
- 本地執(zhí)行post請求進(jìn)行安全掃描
curl -sSX POST --data-binary @kubesec-test.yaml http://localhost:8080/scan
安全建議
- 安全掃描的json結(jié)果,每個(gè)id給我安全配置建議,可進(jìn)行參考
[
{
"object": "Pod/kubesec-demo.default",
"valid": true,
"fileName": "kubesec-test.yaml",
"message": "Passed with a score of 1 points",
"score": 1,
"scoring": {
"passed": [
{
"id": "ReadOnlyRootFilesystem",
"selector": "containers[] .securityContext .readOnlyRootFilesystem == true",
"reason": "An immutable root filesystem can prevent malicious binaries being added to PATH and increase attack cost",
"points": 1
}
],
"advise": [
{
"id": "ApparmorAny",
"selector": ".metadata .annotations .\"container.apparmor.security.beta.kubernetes.io/nginx\"",
"reason": "Well defined AppArmor policies may provide greater protection from unknown threats. WARNING: NOT PRODUCTION READY",
"points": 3
},
{
"id": "ServiceAccountName",
"selector": ".spec .serviceAccountName",
"reason": "Service accounts restrict Kubernetes API access and should be configured with least privilege",
"points": 3
},
{
"id": "SeccompAny",
"selector": ".metadata .annotations .\"container.seccomp.security.alpha.kubernetes.io/pod\"",
"reason": "Seccomp profiles set minimum privilege and secure against unknown threats",
"points": 1
},
{
"id": "AutomountServiceAccountToken",
"selector": ".spec .automountServiceAccountToken == false",
"reason": "Disabling the automounting of Service Account Token reduces the attack surface of the API server",
"points": 1
},
{
"id": "RunAsGroup",
"selector": ".spec, .spec.containers[] | .securityContext .runAsGroup -gt 10000",
"reason": "Run as a high-UID group to avoid conflicts with the host's groups",
"points": 1
},
{
"id": "RunAsNonRoot",
"selector": ".spec, .spec.containers[] | .securityContext .runAsNonRoot == true",
"reason": "Force the running image to run as a non-root user to ensure least privilege",
"points": 1
},
{
"id": "RunAsUser",
"selector": ".spec, .spec.containers[] | .securityContext .runAsUser -gt 10000",
"reason": "Run as a high-UID user to avoid conflicts with the host's users",
"points": 1
},
{
"id": "LimitsCPU",
"selector": "containers[] .resources .limits .cpu",
"reason": "Enforcing CPU limits prevents DOS via resource exhaustion",
"points": 1
},
{
"id": "LimitsMemory",
"selector": "containers[] .resources .limits .memory",
"reason": "Enforcing memory limits prevents DOS via resource exhaustion",
"points": 1
},
{
"id": "RequestsCPU",
"selector": "containers[] .resources .requests .cpu",
"reason": "Enforcing CPU requests aids a fair balancing of resources across the cluster",
"points": 1
},
{
"id": "RequestsMemory",
"selector": "containers[] .resources .requests .memory",
"reason": "Enforcing memory requests aids a fair balancing of resources across the cluster",
"points": 1
},
{
"id": "CapDropAny",
"selector": "containers[] .securityContext .capabilities .drop",
"reason": "Reducing kernel capabilities available to a container limits its attack surface",
"points": 1
},
{
"id": "CapDropAll",
"selector": "containers[] .securityContext .capabilities .drop | index(\"ALL\")",
"reason": "Drop all capabilities and add only those required to reduce syscall attack surface",
"points": 1
}
]
}
}
]
文章來源:http://www.zghlxwxcb.cn/news/detail-752606.html
- 如上圖,yaml安全配置建議配置內(nèi)存及cpu相關(guān)等參數(shù)
- 在實(shí)際業(yè)務(wù)中,如自建devops平臺、或者在實(shí)際編寫yaml過程中,都可以使用kubesec進(jìn)行檢查校驗(yàn),根據(jù)實(shí)際情況進(jìn)行修改。
總結(jié)
Kubesec 是一個(gè)針對 Kubernetes 的安全特性擴(kuò)展項(xiàng)目,旨在提供自動化的安全策略、加密和身份驗(yàn)證、漏洞掃描和修復(fù)、合規(guī)性檢查以及安全審計(jì)日志等功能,以增強(qiáng) Kubernetes 集群的安全性、可靠性和合規(guī)性。
通過部署 Kubesec,可以自動化地定義和執(zhí)行安全規(guī)則,減少手動編寫安全腳本的工作量,同時(shí)提供加密和身份驗(yàn)證機(jī)制,確保集群中的數(shù)據(jù)和通信的安全性。此外,Kubesec 還支持與漏洞掃描工具集成,以發(fā)現(xiàn)和修復(fù)工作負(fù)載中的漏洞,并可以監(jiān)視容器映像以自動更新漏洞修復(fù)。
Kubesec 還提供了合規(guī)性檢查功能,以確保 Kubernetes 集群符合特定的安全標(biāo)準(zhǔn)和法規(guī)要求。它支持可擴(kuò)展的插件架構(gòu),可以輕松添加新的合規(guī)性規(guī)則和檢查。此外,Kubesec 還生成詳細(xì)的安全審計(jì)日志,記錄集群中的安全事件和操作,以便進(jìn)行監(jiān)控和檢測潛在的安全問題,并提供合規(guī)性報(bào)告。
總之,Kubesec 是一個(gè)強(qiáng)大的工具,可以幫助開發(fā)人員和運(yùn)維人員在 Kubernetes 環(huán)境中實(shí)現(xiàn)安全性、可靠性和合規(guī)性。文章來源地址http://www.zghlxwxcb.cn/news/detail-752606.html
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