Docker image too big

[mblaschke-daimlertruck]

To make it short the docker image is far too big (> 1 GB) and there are several reasons for that:

# [...]

#-> install software, creates a layer ~190 MB
RUN apk add --no-cache bash openssh ca-certificates jq curl openssl perl git zip \
 && apk add --no-cache --virtual .build-deps gcc make openssl-dev libffi-dev musl-dev linux-headers \
 && apk add --no-cache libintl icu-libs libc6-compat \
 && apk add --no-cache bash-completion \
 && update-ca-certificates

ARG JP_VERSION="0.1.3"

#-> download jmespath, creates a layer ~4 MB
RUN curl -L https://github.com/jmespath/jp/releases/download/${JP_VERSION}/jp-linux-amd64 -o /usr/local/bin/jp \
 && chmod +x /usr/local/bin/jp

WORKDIR azure-cli

#-> uploading all the sourcecode, creating a layer ~20 MB
COPY . /azure-cli

#-> run installation, creating a layer ~880 MB
RUN ./scripts/install_full.sh \
 && cat /azure-cli/az.completion > ~/.bashrc \
 && runDeps="$( \
    scanelf --needed --nobanner --recursive /usr/local \
        | awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
        | sort -u \
        | xargs -r apk info --installed \
        | sort -u \
    )" \
 && apk add --virtual .rundeps $runDeps

WORKDIR /

#-> removing sourcecode, which just creates another layer which marks all the previous added files as deleted ~1kb
RUN rm -rf ./azure-cli && \
    dos2unix /root/.bashrc /usr/local/bin/az

the rm -rf command is increasing the size by marking all sourcefiles as deleted. you might want to use a multi stage build here for building and then creating the final image.

image was analyzed with dive which shows you all the added files: https://github.com/wagoodman/dive

also related to #23286

[yonzhan]

@jiasli for awareness

[jblt-sidn]

This issue was submitted and fixed before (see #12407). Please make this fix more permanent.

[bebound]

Close as #27567 and #27683 are merged.
Image size will drop to 700MB in 2.54.0