# ============================================================
# AIOps Embed Dockerfile — 前端嵌入后端二进制，单容器部署
# Stage 1: 构建前端 (Node 20)
# Stage 2: 构建后端 (Go 1.24, go:embed 前端)
# Stage 3: Agent 交叉编译
# Stage 4: 运行时 (Alpine, 单二进制服务前后端)
# 署名 Logan.Li
# ============================================================

ARG VERSION=dev
ARG BUILD_TIME=unknown
ARG GIT_COMMIT=unknown
ARG KUBECTL_VERSION=v1.32.2

# ==================== Stage 1: Frontend Builder ====================
FROM node:20-alpine AS frontend-builder

WORKDIR /app

# 使用淘宝镜像加速
RUN npm config set registry https://registry.npmmirror.com

# 安装依赖（利用 Docker 缓存层）
COPY frontend/package.json frontend/package-lock.json ./
RUN npm ci

# 复制源代码并构建
COPY frontend/ ./
RUN npm run build

# ==================== Stage 2: Backend Builder ====================
FROM golang:1.24-alpine AS backend-builder

ARG VERSION
ARG BUILD_TIME
ARG GIT_COMMIT
ARG TARGETARCH

WORKDIR /app

# 使用国内 Alpine 镜像源加速
RUN sed -i 's|dl-cdn.alpinelinux.org|mirrors.tuna.tsinghua.edu.cn|g' /etc/apk/repositories
RUN apk add --no-cache git ca-certificates tzdata gcc musl-dev

ENV TZ=Asia/Shanghai
ENV GOPROXY=https://goproxy.cn,direct
ENV GONOSUMCHECK=*

# 复制后端 go.mod（利用 Docker 层缓存）
COPY backend/go.mod backend/go.sum ./
RUN go mod download

# 复制后端源码
COPY backend/ ./

# ★ 核心：将前端构建产物复制到 embed 目录
RUN rm -rf static && mkdir -p static
COPY --from=frontend-builder /app/dist/ static/

# 构建后端二进制（跟随 TARGETARCH，Mac ARM 构建 linux/arm64 避免 CGO 交叉编译失败）// Logan.Li
RUN CGO_ENABLED=1 GOOS=linux GOARCH=${TARGETARCH} go build \
    -ldflags="-w -s -X main.Version=${VERSION} -X main.BuildTime=${BUILD_TIME} -X main.GitCommit=${GIT_COMMIT}" \
    -o aiops .

# ==================== Stage 3: Agent Builder ====================
FROM golang:1.24-alpine AS agent-builder

ARG VERSION
ARG BUILD_TIME

WORKDIR /agent

ENV GOPROXY=https://goproxy.cn,direct
ENV GOSUMDB=off

COPY agent/go.mod agent/go.sum ./
RUN go mod download

COPY agent/ ./

RUN CGO_ENABLED=0 GOOS=linux  GOARCH=amd64 go build -ldflags="-s -w -X main.version=${VERSION} -X main.buildTime=${BUILD_TIME}" -o bin/aiops-agent-linux-amd64  . && \
    CGO_ENABLED=0 GOOS=linux  GOARCH=arm64 go build -ldflags="-s -w -X main.version=${VERSION} -X main.buildTime=${BUILD_TIME}" -o bin/aiops-agent-linux-arm64  . && \
    CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -ldflags="-s -w -X main.version=${VERSION} -X main.buildTime=${BUILD_TIME}" -o bin/aiops-agent-darwin-arm64 .

# ==================== Stage 4: Runtime ====================
FROM alpine:latest

ARG TARGETARCH
ARG KUBECTL_VERSION=v1.32.2

# 使用国内 Alpine 镜像源加速
RUN sed -i 's|dl-cdn.alpinelinux.org|mirrors.tuna.tsinghua.edu.cn|g' /etc/apk/repositories

# 安装运行时依赖（核心最小集，重型工具改为懒加载）// Logan.Li
# bash=kubectl交互终端, curl=健康检查, git=流水线代码拉取, docker-cli=镜像构建推送
# kubectl 按 TARGETARCH 构建时下载（linux/amd64|arm64），无需本地 backend/kubectl // Logan.Li
RUN apk --no-cache add ca-certificates tzdata bash curl git docker-cli docker-cli-buildx

COPY scripts/install-kubectl.sh /tmp/install-kubectl.sh
RUN chmod +x /tmp/install-kubectl.sh && \
    TARGET_OS=linux TARGET_ARCH="${TARGETARCH}" KUBECTL_VERSION="${KUBECTL_VERSION}" \
    /tmp/install-kubectl.sh /usr/local/bin/kubectl && \
    rm -f /tmp/install-kubectl.sh

# Maven 阿里云镜像加速（maven 懒加载后生效）
RUN mkdir -p /root/.m2 && \
    echo '<?xml version="1.0" encoding="UTF-8"?><settings><mirrors><mirror><id>aliyun</id><mirrorOf>central</mirrorOf><name>Aliyun Maven</name><url>https://maven.aliyun.com/repository/public</url></mirror></mirrors></settings>' > /root/.m2/settings.xml

# npm 淘宝镜像加速（node 懒加载后生效）
RUN npm config set registry https://registry.npmmirror.com 2>/dev/null || true

ENV TZ=Asia/Shanghai

WORKDIR /app

# 复制后端二进制（前端已嵌入）
COPY --from=backend-builder /app/aiops .

# 创建运行时目录
RUN mkdir -p /app/agent/bin /app/agent/deploy

# 复制 agent 二进制
COPY --from=agent-builder /agent/bin/aiops-agent-linux-amd64  /app/agent/bin/
COPY --from=agent-builder /agent/bin/aiops-agent-linux-arm64  /app/agent/bin/
COPY --from=agent-builder /agent/bin/aiops-agent-darwin-arm64 /app/agent/bin/

# 复制 agent 安装脚本
COPY agent/deploy/install.sh          /app/agent/deploy/
COPY agent/deploy/aiops-agent.service /app/agent/deploy/

EXPOSE 8080

HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
    CMD curl -f http://localhost:8080/health || exit 1

CMD ["./aiops"]