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