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build consistent statically linked binary for docker image 

* 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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9
.circleci/config.yml
View File

@ -4,11 +4,11 @@ jobs:
build: build:
docker: docker:
- image: circleci/golang:1.10 - image: circleci/golang:1.10.1
working_directory: /go/src/github.com/roboll/helmfile working_directory: /go/src/github.com/roboll/helmfile
steps: steps:
- checkout - checkout
- run: make build - run: make static-linux
- persist_to_workspace: - persist_to_workspace:
root: /go/src/github.com/roboll/helmfile root: /go/src/github.com/roboll/helmfile
paths: paths:
@ -16,7 +16,7 @@ jobs:
test: test:
docker: docker:
- image: circleci/golang:1.10 - image: circleci/golang:1.10.1
working_directory: /go/src/github.com/roboll/helmfile working_directory: /go/src/github.com/roboll/helmfile
steps: steps:
- checkout - checkout
@ -76,7 +76,7 @@ jobs:
release: release:
docker: docker:
- image: circleci/golang:1.10 - image: circleci/golang:1.10.1
working_directory: /go/src/github.com/roboll/helmfile working_directory: /go/src/github.com/roboll/helmfile
steps: steps:
- checkout - checkout
@ -84,7 +84,6 @@ jobs:
- run: - run:
command: | command: |
docker login -u="$DOCKER_USER" -p="$DOCKER_PASS" quay.io docker login -u="$DOCKER_USER" -p="$DOCKER_PASS" quay.io
make tools
BUILD_URL="$CIRCLE_BUILD_URL" make push release BUILD_URL="$CIRCLE_BUILD_URL" make push release
workflows: workflows:

15
Dockerfile
View File

@ -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 FROM alpine:3.7
RUN apk add --no-cache ca-certificates 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/ && \ tar zxf ${HELM_FILENAME} && mv /linux-amd64/helm /usr/local/bin/ && \
rm ${HELM_FILENAME} && rm -r /linux-amd64 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"] CMD ["/usr/local/bin/helmfile"]

6
Makefile
View File

@ -29,6 +29,10 @@ cross:
gox -os '!freebsd !netbsd' -arch '!arm' -output "dist/{{.Dir}}_{{.OS}}_{{.Arch}}" -ldflags '-X main.Version=${TAG}' ${TARGETS} gox -os '!freebsd !netbsd' -arch '!arm' -output "dist/{{.Dir}}_{{.OS}}_{{.Arch}}" -ldflags '-X main.Version=${TAG}' ${TARGETS}
.PHONY: cross .PHONY: cross
static-linux:
env CGO_ENABLED=0 gox -osarch="linux/amd64" -output "dist/{{.Dir}}_{{.OS}}_{{.Arch}}" -ldflags '-X main.Version=${TAG}' ${TARGETS}
.PHONY: linux
clean: clean:
rm dist/helmfile_* rm dist/helmfile_*
.PHONY: clean .PHONY: clean
@ -41,7 +45,7 @@ release: pristine cross
@ghr -b ${BODY} -t ${GITHUB_TOKEN} -u ${ORG} -recreate ${TAG} dist @ghr -b ${BODY} -t ${GITHUB_TOKEN} -u ${ORG} -recreate ${TAG} dist
.PHONY: release .PHONY: release
image: cross image:
docker build -t quay.io/${ORG}/helmfile:${TAG} . docker build -t quay.io/${ORG}/helmfile:${TAG} .
run: image run: image