39 lines
968 B
Docker
39 lines
968 B
Docker
# ---- 构建阶段 ----
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FROM golang:1.26-alpine AS builder
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WORKDIR /app
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# 使用国内 Go 代理
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ENV GOPROXY=https://goproxy.cn,https://goproxy.io,direct
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# 先复制依赖清单，利用 Docker 缓存层
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COPY go.mod go.sum ./
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# --mount=type=cache 复用 Go module 缓存，依赖不变时跳过下载
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RUN --mount=type=cache,target=/go/pkg/mod \
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go mod download
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# 复制源码并构建
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COPY . .
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# 复用 module 缓存 + 编译缓存；-ldflags="-s -w" 裁剪符号表减小 ~30% 体积
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RUN --mount=type=cache,target=/go/pkg/mod \
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--mount=type=cache,target=/root/.cache/go-build \
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CGO_ENABLED=0 GOOS=linux \
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go build -ldflags="-s -w" -o /camtalk ./cmd/server
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# ---- 运行阶段 ----
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FROM alpine:3.20
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RUN apk add --no-cache ca-certificates tzdata
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WORKDIR /app
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# 复制二进制和配置文件（敏感配置通过 docker-compose env_file 注入覆盖）
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COPY --from=builder /camtalk .
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COPY config.yaml .
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EXPOSE 8080
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ENTRYPOINT ["./camtalk"]
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