54 lines
1.2 KiB
Docker
54 lines
1.2 KiB
Docker
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FROM --platform=$BUILDPLATFORM golang:1.16.0-alpine3.13 AS builder
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# ex. amd64
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ARG TARGETARCH
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# ex. linux/amd64
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ARG BUILDPLATFORM
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RUN apk update && \
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apk add --no-cache git ca-certificates tzdata gcc libc-dev && \
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update-ca-certificates
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ENV USER=appuser
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ENV UID=10001
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ENV GID=10001
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WORKDIR /data
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RUN addgroup \
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--gid "${GID}" \
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"${USER}" && \
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adduser \
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--disabled-password \
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--gecos "" \
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--home "/nonexistent" \
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--shell "/sbin/nologin" \
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--no-create-home \
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--uid "${UID}" \
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-G "${USER}" \
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"${USER}"
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COPY go.mod .
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COPY go.sum .
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RUN go mod download && \
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go mod verify
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COPY . .
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RUN export GOARCH=$TARGETARCH; \
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export GOOS=$(echo $BUILDPLATFORM | cut -d'/' -f1); \
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export GOBUILDFLAGS="-a -tags netgo -installsuffix netgo"; \
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export LDFLAGS="-w -s -d"; \
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export CGO_ENABLED=0; \
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go build -o bin/bot-$GOOS-$GOARCH cmd/main.go
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FROM scratch
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USER appuser:appuser
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COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
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COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
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COPY --from=builder /etc/passwd /etc/passwd
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COPY --from=builder /etc/group /etc/group
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COPY --from=builder --chown=appuser:appuser /data/bin/* /go/bin/bot
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WORKDIR /go
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ENTRYPOINT ["/go/bin/bot"]
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