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refactor: enhance Dockerfile with build args and optimized caching #877

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18 changes: 15 additions & 3 deletions Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,10 +1,22 @@
FROM golang:1.24.3-alpine3.21 AS builder
ARG GO_VERSION=1.24.3
ARG ALPINE_VERSION=3.21

FROM golang:${GO_VERSION}-alpine${ALPINE_VERSION} AS builder

WORKDIR /app

RUN --mount=type=cache,target=/go/pkg/mod \
--mount=type=bind,source=go.mod,target=go.mod \
--mount=type=bind,source=go.sum,target=go.sum \
go mod download -x && go mod verify

COPY . /app
RUN CGO_ENABLED=0 go build .

FROM alpine:3.21
RUN --mount=type=cache,target=/go/pkg/mod \
--mount=type=cache,target=/root/.cache \
CGO_ENABLED=0 go build .

FROM alpine:${ALPINE_VERSION}

WORKDIR /app
COPY --from=builder /app/glance .
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