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build(backend): cache Go modules and build output in Dockerfile.local #9249

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27 changes: 21 additions & 6 deletions backend/Dockerfile.local
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Expand Up @@ -51,21 +51,36 @@ RUN go install github.com/vektra/mockery/v3@v3.8.1
RUN go install github.com/swaggo/swag/cmd/swag@v1.16.6

WORKDIR /app

# Cache Go module downloads in a separate layer (only re-runs when go.mod/go.sum change)
COPY go.mod go.sum ./
RUN --mount=type=cache,target=/go/pkg/mod \
go mod download

# Now copy the rest of the source
COPY . /app
ENV GOBIN=/app/bin

ARG TAG=
ARG SHA=

# Generate mocks and swagger
RUN make mock
RUN make swag
# Generate mocks and swagger (use build cache to speed up swag)
RUN --mount=type=cache,target=/root/.cache/go-build \
--mount=type=cache,target=/go/pkg/mod \
make mock
RUN --mount=type=cache,target=/root/.cache/go-build \
--mount=type=cache,target=/go/pkg/mod \
make swag

# Build plugins
RUN make build-plugin
# Build plugins (parallel, with persistent Go build cache)
RUN --mount=type=cache,target=/root/.cache/go-build \
--mount=type=cache,target=/go/pkg/mod \
make build-plugin

# Build server
RUN VERSION=${TAG}@${SHA} make build-server
RUN --mount=type=cache,target=/root/.cache/go-build \
--mount=type=cache,target=/go/pkg/mod \
VERSION=${TAG}@${SHA} make build-server

FROM debian:bookworm-slim

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