Add Dockerfile.self-contained (#283)

* Add Dockerfile using multi-stage build

* Rename Dockerfile and use more RUN commands
pull/290/head
Sven Gottwald 6 years ago committed by Simon Aronsson
parent fcdd601389
commit 90bd4a1e3e

@ -0,0 +1,38 @@
#
# Builder
#
FROM golang:alpine as builder
# use version (for example "v0.3.3") or "master"
ARG WATCHTOWER_VERSION=master
RUN apk add --no-cache \
alpine-sdk \
ca-certificates \
git \
tzdata
RUN git clone --branch "${WATCHTOWER_VERSION}" https://github.com/containrrr/watchtower.git
RUN \
cd watchtower && \
\
GO111MODULE=on CGO_ENABLED=0 GOOS=linux go build -a -ldflags '-extldflags "-static"' . && \
GO111MODULE=on go test ./... -v
#
# watchtower
#
FROM scratch
LABEL "com.centurylinklabs.watchtower"="true"
# copy files from other container
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
COPY --from=builder /go/watchtower/watchtower /watchtower
ENTRYPOINT ["/watchtower"]
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