A simple dockerfile for packer with ansible provisioner

dockerfile.ansible

FROM alpine:3.17.3 as release-light

ARG PRODUCT_VERSION

# TARGETARCH and TARGETOS are set automatically when --platform is provided.
ARG TARGETOS TARGETARCH

ENV USER=nonroot
ENV GROUP=nonroot
ENV PACKER_VERSION=${PRODUCT_VERSION}/packer_${PRODUCT_VERSION}_${TARGETOS}_${TARGETARCH}.zip

RUN apk add --no-cache -U -u \
        ca-certificates \
        curl \
        git \
        bash \
        wget \
        openssl \
        gnupg \
        xorriso \
        ansible

RUN curl -L -o /tmp/packer.zip https://releases.hashicorp.com/packer/${PACKER_VERSION} && \
    unzip /tmp/packer.zip -d /usr/local/bin && \
    rm -rf /tmp/packer.zip

RUN addgroup -g 1000 -S ${GROUP} && \
    adduser -u 1000 -D -S -G ${USER} ${GROUP}

USER ${USER}

ENTRYPOINT ["/bin/sh", "-c"]