Jan Collijs
29 lines
949 B
Docker
29 lines
949 B
Docker
# Built following https://medium.com/@chemidy/create-the-smallest-and-secured-golang-docker-image-based-on-scratch-4752223b7324
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# STEP 1 build executable binary
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FROM golang:alpine as builder
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# Install SSL ca certificates
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RUN apk update && apk add git && apk add ca-certificates
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# Create appuser
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RUN adduser -D -g '' appuser
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COPY . $GOPATH/src/mypackage/myapp/
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WORKDIR $GOPATH/src/mypackage/myapp/
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#get dependancies
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RUN go get -d -v
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#build the binary
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RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -ldflags="-w -s" -o /go/bin/alertmanager-discord
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# STEP 2 build a small image
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# start from scratch
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FROM scratch
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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 our static executable
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COPY --from=builder /go/bin/alertmanager-discord /go/bin/alertmanager-discord
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ENV LISTEN_ADDRESS=0.0.0.0:9094
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EXPOSE 9094
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USER appuser
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ENTRYPOINT ["/go/bin/alertmanager-discord"]
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