44 lines
1.4 KiB
Docker
44 lines
1.4 KiB
Docker
# 多阶段构建：push-gateway 生产镜像
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# 用法：docker build -t edu/push-gateway:latest -f services/push-gateway/Dockerfile .
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# ============ Builder ============
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FROM golang:1.25-alpine AS builder
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WORKDIR /app
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# git 与 ca-certificates 为 go mod 下载所需
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RUN apk add --no-cache git ca-certificates
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# 利用 go.work 时需拷贝根 go.work 与 shared-go 包
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COPY go.mod go.sum ./
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COPY packages/shared-go ./packages/shared-go
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COPY services/push-gateway/go.mod services/push-gateway/go.sum ./services/push-gateway/
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RUN cd services/push-gateway && go mod download
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# 拷源码并构建（静态编译便于 alpine 运行）
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COPY services/push-gateway ./services/push-gateway
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COPY packages/shared-go ./packages/shared-go
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RUN CGO_ENABLED=0 GOOS=linux go build \
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-ldflags="-s -w -X main.serviceName=push-gateway" \
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-o /app/bin/push-gateway \
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./services/push-gateway
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# ============ Runtime ============
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FROM alpine:3.20 AS runner
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WORKDIR /app
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RUN apk add --no-cache ca-certificates tzdata wget
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# 非 root 用户
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RUN addgroup -g 1001 -S app && adduser -S app -u 1001 -G app
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COPY --from=builder /app/bin/push-gateway /app/push-gateway
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USER app
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EXPOSE 8081
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# 健康检查（liveness probe；readiness 由 /readyz 单独探活）
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HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
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CMD wget --quiet --spider http://localhost:8081/healthz || exit 1
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ENTRYPOINT ["/app/push-gateway"]
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