Dockerfile

ARG ALPINE_VERSION=3.17
ARG GO_VERSION=1.19
ARG COMPOSE_VERSION=2.16.0

FROM golang:${GO_VERSION} AS builder
RUN export GOBIN=$HOME/work/bin
WORKDIR /go/src/app
ADD src/ .
ADD src/go.mod .
ADD src/go.sum .
RUN go get -d -v ./...
RUN CGO_ENABLED=0 go build -ldflags="-w -s" -o main .

FROM alpine:${ALPINE_VERSION}
ARG COMPOSE_VERSION
ARG BUILD_DATE
ARG VCS_REF
ARG TARGETPLATFORM
LABEL org.label-schema.build-date=$BUILD_DATE \
        org.label-schema.name="Compose Updater" \
        org.label-schema.description="Automatically update your Docker Compose containers." \
        org.label-schema.vcs-ref=$VCS_REF \
        org.label-schema.vcs-url="https://github.com/virtualzone/compose-updater" \
        org.label-schema.schema-version="1.0"
RUN apk --no-cache add docker curl
RUN \
    case ${TARGETPLATFORM} in \
      "linux/amd64")  DOWNLOAD_ARCH="x86_64"  ;; \
      "linux/arm64") DOWNLOAD_ARCH="aarch64"  ;; \
      "linux/arm/v7") DOWNLOAD_ARCH="armv7"  ;; \
      *) DOWNLOAD_ARCH="x86_64"  ;; \
    esac && \
    mkdir -p /usr/local/lib/docker/cli-plugins && \
    curl -SLf https://github.com/docker/compose/releases/download/v${COMPOSE_VERSION}/docker-compose-linux-${DOWNLOAD_ARCH} -o /usr/local/lib/docker/cli-plugins/docker-compose && \
    chmod +x /usr/local/lib/docker/cli-plugins/docker-compose
COPY --from=builder /go/src/app/main /usr/local/bin/docker-compose-watcher
CMD ["docker-compose-watcher", "-once=0", "-printSettings"]