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build consistent statically linked binary for docker image

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* use golang 1.10.1 images everywhere
* introduce a `static-linux` target to build a statically linked 64-bit binary only
* use that binary for the official image and the circle build and tests
* use a multi-stage dockerfile for a consistent build environment
This commit is contained in:
Cedric Meury
2018-04-27 11:11:35 +02:00
parent efe5a2e56b
commit 5f9d3f818c
3 changed files with 23 additions and 7 deletions
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Dockerfile
+14 -1
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@@ -1,3 +1,16 @@
FROM golang:1.10.1-alpine3.7 as builder
RUN apk add --no-cache make git
WORKDIR /go/src/github.com/roboll/helmfile/
COPY Makefile /go/src/github.com/roboll/helmfile/Makefile
RUN make tools
COPY . /go/src/github.com/roboll/helmfile/
RUN make static-linux
# -----------------------------------------------------------------------------
FROM alpine:3.7
RUN apk add --no-cache ca-certificates
@@ -11,6 +24,6 @@ RUN wget ${HELM_LOCATION}/${HELM_FILENAME} && \
tar zxf ${HELM_FILENAME} && mv /linux-amd64/helm /usr/local/bin/ && \
rm ${HELM_FILENAME} && rm -r /linux-amd64
COPY dist/helmfile_linux_amd64 /usr/local/bin/helmfile
COPY --from=builder /go/src/github.com/roboll/helmfile/dist/helmfile_linux_amd64 /usr/local/bin/helmfile
CMD ["/usr/local/bin/helmfile"]