Files
LokiStack/Dockerfile
T
opsx ec759cd36b build: Dockerfile 编译加 -trimpath(抹除源码绝对路径)
加固前:二进制内可 strings 出 66 处 /app/backend/controllers/*.go 等源码路径,
        泄露完整目录结构与文件名。
加固后:路径被 trimpath 抹除,命中数 0。

注:build.sh / run.sh 已在上个提交加过 -trimpath,本次补上实际部署用的
    Dockerfile 构建路径(K8s / docker-compose 走的就是这里)。
2026-10-26 17:05:11 +00:00

127 lines
4.5 KiB
Docker

# ============================================================
# opsx-loki - Secure Multi-Stage Dockerfile
# ============================================================
# P0 Fixes:
# - Non-root user (opsxloki:1000)
# - No hardcoded JWT_SECRET (validated at runtime)
# - HEALTHCHECK instruction added
# - Binary installation verification
# P1 Fixes:
# - Supply chain risk reduction (--ignore-scripts where applicable)
# - File ownership with --chown
# - Security environment variables
# ============================================================
# ---------------------------------------------------------------
# Stage 1: Frontend Builder (Node.js)
# ---------------------------------------------------------------
FROM node:20-alpine AS frontend-builder
WORKDIR /app/frontend
# Install dependencies separately to leverage layer caching
COPY frontend/package*.json ./
# Use --ignore-scripts to reduce supply chain attack surface
RUN npm ci --ignore-scripts && \
npm cache clean --force
# Copy source and build
COPY frontend/ ./
RUN npm run build
# ---------------------------------------------------------------
# Stage 2: Backend Builder (Go)
# ---------------------------------------------------------------
FROM golang:1.24-alpine AS backend-builder
RUN apk add --no-cache git ca-certificates tzdata
ENV GOTOOLCHAIN=local
WORKDIR /app/backend
# Download dependencies (cached layer)
COPY backend/go.* ./
RUN go mod download
# Copy source and build static binary
# -trimpath:抹掉源码绝对路径(否则二进制里能 strings 出 /app/backend/controllers/*.go 共 66 处)
COPY backend/ ./
RUN CGO_ENABLED=0 GOOS=linux go build \
-trimpath \
-a -installsuffix cgo \
-ldflags="-s -w -extldflags '-static'" \
-o bin/opsxloki .
# ---------------------------------------------------------------
# Stage 3: Final Runtime Image
# ---------------------------------------------------------------
FROM alpine:3.20
# Install runtime dependencies:
# ca-certificates: HTTPS TLS verification
# openssh-client: SSH key auth for host deployment
# bash: Entrypoint script support
# wget: HEALTHCHECK (lighter than curl)
RUN apk --no-cache add \
ca-certificates \
openssh-client \
bash \
wget
# ---------------------------------------------------------------
# P0: Create non-root user and group
# ---------------------------------------------------------------
RUN addgroup -g 1000 opsxloki && \
adduser -u 1000 -G opsxloki -s /bin/sh -D opsxloki
# ---------------------------------------------------------------
# Working directory with proper ownership
# ---------------------------------------------------------------
WORKDIR /app
RUN chown opsxloki:opsxloki /app
# ---- Copy application files with correct ownership (P1) ----
COPY --from=frontend-builder --chown=opsxloki:opsxloki /app/frontend/dist ./dist
COPY --from=backend-builder --chown=opsxloki:opsxloki /app/backend/bin/opsxloki ./opsxloki
# Create data directory with non-root ownership
RUN mkdir -p /app/data && chown -R opsxloki:opsxloki /app/data
# Create .kube directory for non-root user (P0: not /root/.kube)
RUN mkdir -p /home/opsxloki/.kube && \
chown -R opsxloki:opsxloki /home/opsxloki && \
chmod 700 /home/opsxloki/.kube
# ---- Security hardening: remove unnecessary tools ----
RUN rm -rf /tmp/* /var/cache/apk/*
# ---------------------------------------------------------------
# Security environment variables
# ---------------------------------------------------------------
ENV DATA_DIR=/app/data
ENV SERVER_PORT=8080
ENV KUBECONFIG=/home/opsxloki/.kube/config
ENV HOME=/home/opsxloki
# NOTE: JWT_SECRET and ENCRYPTION_KEY are NOT set here.
# They MUST be provided at runtime via docker-compose env or secrets.
# The entrypoint script will enforce this requirement.
# ---- Copy and configure entrypoint script ----
COPY --chown=opsxloki:opsxloki docker-entrypoint.sh /usr/local/bin/
RUN chmod +x /usr/local/bin/docker-entrypoint.sh
EXPOSE 8080
# ---------------------------------------------------------------
# P0: HEALTHCHECK - verifies static file serving (no auth needed)
# ---------------------------------------------------------------
HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
CMD wget --no-verbose --tries=1 --spider \
http://localhost:${SERVER_PORT}/index.html || exit 1
# ---------------------------------------------------------------
# P0: Switch to non-root user
# ---------------------------------------------------------------
USER opsxloki
ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
CMD ["./opsxloki"]