菜单
Reduce container attack surface by building application images on Google distroless base images that contain only the application runtime with no shell, package manager, or unnecessary OS utilities.
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决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
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npx skills add https://github.com/AgentFlocks/flocks --skill implementing-container-image-minimal-base-with-distroless命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
深信服 EDR 登录态管理、首页仪表盘、威胁资产分析和资产清点分类统计 API 采集。用户提到深信服 EDR、EDR、资产清点或 sangfor EDR 时必须先加载本 skill。
统一处理浏览器使用任务，支持可见浏览器 CDP 直连、专用 headless CDP、agent-browser。Use when the user asks to browse websites, interact with pages, fill forms, capture screenshots, reuse an existing Chrome/Chromium/Edge login session, work with an already-open browser/sidebar browser, access login-only/internal/dynamic pages, or automate browser actions.
用于处理 OneSEC/OneDNS 终端安全平台相关任务，支持通过API或者结合浏览器进行操作。只要用户提到 OneSEC、微步 EDR等相关操纵需求时，必须先加载本 skill。本 skill 是 OneSEC 平台操作的唯一决策入口：在未阅读本 skill 并完成模式判断前，不要直接调用任何 `onesec_*` tool。
基于 SOC 职业分类
正在显示 SKILL.md
| name | implementing-container-image-minimal-base-with-distroless |
| description | Reduce container attack surface by building application images on Google distroless base images that contain only the application runtime with no shell, package manager, or unnecessary OS utilities. |
| domain | cybersecurity |
| subdomain | container-security |
| tags | ["distroless","container-images","minimal-base","attack-surface","docker","security-hardening","supply-chain","kubernetes"] |
| version | 1.0 |
| author | mahipal |
| license | Apache-2.0 |
| nist_csf | ["PR.PS-01","PR.IR-01","ID.AM-08","DE.CM-01"] |
Google distroless images contain only your application and its runtime dependencies, without package managers, shells, or other programs found in standard Linux distributions. By eliminating unnecessary OS components, distroless images achieve up to 95% reduction in attack surface compared to traditional base images like ubuntu or debian. Major projects including Kubernetes itself, Knative, and Tekton use distroless images in production. As of 2025, Docker also offers Hardened Images (DHI) as an open-source alternative for minimal container bases.
| Image | Use Case | Size |
|---|---|---|
gcr.io/distroless/static-debian12 | Statically compiled binaries (Go, Rust) | ~2MB |
gcr.io/distroless/base-debian12 | Dynamically linked binaries needing glibc | ~20MB |
gcr.io/distroless/cc-debian12 | C/C++ applications needing libstdc++ | ~25MB |
gcr.io/distroless/java21-debian12 | Java 21 applications | ~220MB |
gcr.io/distroless/python3-debian12 | Python 3 applications | ~50MB |
gcr.io/distroless/nodejs22-debian12 | Node.js 22 applications | ~130MB |
# Build stage
FROM golang:1.22-bookworm AS builder
WORKDIR /app
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /server ./cmd/server
# Runtime stage - static distroless
FROM gcr.io/distroless/static-debian12:nonroot
COPY --from=builder /server /server
USER nonroot:nonroot
ENTRYPOINT ["/server"]
# Build stage
FROM maven:3.9-eclipse-temurin-21 AS builder
WORKDIR /app
COPY pom.xml .
RUN mvn dependency:go-offline
COPY src ./src
RUN mvn package -DskipTests
# Runtime stage - Java distroless
FROM gcr.io/distroless/java21-debian12:nonroot
COPY --from=builder /app/target/app.jar /app.jar
USER nonroot:nonroot
ENTRYPOINT ["java", "-jar", "/app.jar"]
# Build stage
FROM python:3.12-bookworm AS builder
WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir --target=/deps -r requirements.txt
COPY . .
# Runtime stage - Python distroless
FROM gcr.io/distroless/python3-debian12:nonroot
WORKDIR /app
COPY --from=builder /deps /deps
COPY --from=builder /app /app
ENV PYTHONPATH=/deps
USER nonroot:nonroot
ENTRYPOINT ["python3", "/app/main.py"]
# Build stage
FROM node:22-bookworm AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --production
COPY . .
# Runtime stage - Node distroless
FROM gcr.io/distroless/nodejs22-debian12:nonroot
WORKDIR /app
COPY --from=builder /app .
USER nonroot:nonroot
CMD ["server.js"]
| Component | Ubuntu | Alpine | Distroless |
|---|---|---|---|
| Shell (bash/sh) | Yes | Yes | No |
| Package manager | apt | apk | No |
| coreutils | Full | BusyBox | No |
| curl/wget | Yes | Yes | No |
| User management | Yes | Yes | No |
| Known CVEs (typical) | 50-200+ | 5-20 | 0-5 |
| Image size (base) | ~77MB | ~7MB | ~2-20MB |
cat, ls, find, curl for reconnaissance:nonroot tag runs as UID 65534Since distroless has no shell, use these techniques for debugging:
# Use debug variant in non-production environments only
FROM gcr.io/distroless/base-debian12:debug
# Includes busybox shell at /busybox/sh
# Exec into debug variant
kubectl exec -it pod-name -- /busybox/sh
# Attach a debug container with full tooling
kubectl debug -it pod-name --image=busybox:1.36 --target=app-container
# Inspect image layers without running
crane export gcr.io/distroless/static-debian12 - | tar -tf - | head -50
# Analyze image layers
dive gcr.io/distroless/static-debian12
Typical vulnerability comparison using Trivy:
# Scan Ubuntu-based image
trivy image myapp:ubuntu
# Result: 47 vulnerabilities (3 CRITICAL, 12 HIGH)
# Scan Distroless-based image
trivy image myapp:distroless
# Result: 2 vulnerabilities (0 CRITICAL, 0 HIGH)